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drm msm + fixes for 5.5-rc1

Browse Source 
msm-next:
 - OCMEM support for a3xx and a4xx GPUs.
 - a510 support + display support
 
 core:
 - mst payload deletion fix
 
 i915:
 - uapi alignment fix
 - fix for power usage regression due to security fixes
 - change default preemption timeout to 640ms from 100ms
 - EHL voltage level display fixes
 - TGL DGL PHY fix
 - gvt - MI_ATOMIC cmd parser fix, CFL non-priv warning
 - CI spotted deadlock fix
 - EHL port D programming fix
 
 amdgpu:
 - VRAM lost fixes on BACO for CI/VI
 - navi14 DC fixes
 - misc SR-IOV, gfx10 fixes
 - XGMI fixes for arcturus
 - SRIOV fixes
 
 amdkfd:
 - KFD on ppc64le enabled
 - page table optimisations
 
 radeon:
 - fix for r1xx/2xx register checker.
 
 tegra:
 - displayport regression fixes
 - DMA API regression fixes
 
 mgag200:
 - fix devices that can't scanout except at 0 addr
 
 omap:
 - fix dma_addr refcounting
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Merge tag 'drm-next-2019-12-06' of git://anongit.freedesktop.org/drm/drm

Pull more drm updates from Dave Airlie:
 "Rob pointed out I missed his pull request for msm-next, it's been in
  next for a while outside of my tree so shouldn't cause any unexpected
  issues, it has some OCMEM support in drivers/soc that is acked by
  other maintainers as it's outside my tree.

  Otherwise it's a usual fixes pull, i915, amdgpu, the main ones, with
  some tegra, omap, mgag200 and one core fix.

  Summary:

  msm-next:
   - OCMEM support for a3xx and a4xx GPUs.
   - a510 support + display support

  core:
   - mst payload deletion fix

  i915:
   - uapi alignment fix
   - fix for power usage regression due to security fixes
   - change default preemption timeout to 640ms from 100ms
   - EHL voltage level display fixes
   - TGL DGL PHY fix
   - gvt - MI_ATOMIC cmd parser fix, CFL non-priv warning
   - CI spotted deadlock fix
   - EHL port D programming fix

  amdgpu:
   - VRAM lost fixes on BACO for CI/VI
   - navi14 DC fixes
   - misc SR-IOV, gfx10 fixes
   - XGMI fixes for arcturus
   - SRIOV fixes

  amdkfd:
   - KFD on ppc64le enabled
   - page table optimisations

  radeon:
   - fix for r1xx/2xx register checker.

  tegra:
   - displayport regression fixes
   - DMA API regression fixes

  mgag200:
   - fix devices that can't scanout except at 0 addr

  omap:
   - fix dma_addr refcounting"

* tag 'drm-next-2019-12-06' of git://anongit.freedesktop.org/drm/drm: (100 commits)
  drm/dp_mst: Correct the bug in drm_dp_update_payload_part1()
  drm/omap: fix dma_addr refcounting
  drm/tegra: Run hub cleanup on ->remove()
  drm/tegra: sor: Make the +5V HDMI supply optional
  drm/tegra: Silence expected errors on IOMMU attach
  drm/tegra: vic: Export module device table
  drm/tegra: sor: Implement system suspend/resume
  drm/tegra: Use proper IOVA address for cursor image
  drm/tegra: gem: Remove premature import restrictions
  drm/tegra: gem: Properly pin imported buffers
  drm/tegra: hub: Remove bogus connection mutex check
  ia64: agp: Replace empty define with do while
  agp: Add bridge parameter documentation
  agp: remove unused variable num_segments
  agp: move AGPGART_MINOR to include/linux/miscdevice.h
  agp: remove unused variable size in agp_generic_create_gatt_table
  drm/dp_mst: Fix build on systems with STACKTRACE_SUPPORT=n
  drm/radeon: fix r1xx/r2xx register checker for POT textures
  drm/amdgpu: fix GFX10 missing CSIB set(v3)
  drm/amdgpu: should stop GFX ring in hw_fini
  ...
This commit is contained in:
Linus Torvalds 2019-12-06 10:28:09 -08:00
commit 7ada90eb9c
126 changed files with 2016 additions and 766 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
Documentation/devicetree/bindings/display/msm/gmu.txt
View File

@ -31,6 +31,10 @@ Required properties:
- iommus: phandle to the adreno iommu
- operating-points-v2: phandle to the OPP operating points
Optional properties:
- sram: phandle to the On Chip Memory (OCMEM) that's present on some Snapdragon
SoCs. See Documentation/devicetree/bindings/sram/qcom,ocmem.yaml.
Example:
/ {
@ -63,3 +67,50 @@ Example:
operating-points-v2 = <&gmu_opp_table>;
};
};
a3xx example with OCMEM support:
/ {
...
gpu: adreno@fdb00000 {
compatible = "qcom,adreno-330.2",
"qcom,adreno";
reg = <0xfdb00000 0x10000>;
reg-names = "kgsl_3d0_reg_memory";
interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "kgsl_3d0_irq";
clock-names = "core",
"iface",
"mem_iface";
clocks = <&mmcc OXILI_GFX3D_CLK>,
<&mmcc OXILICX_AHB_CLK>,
<&mmcc OXILICX_AXI_CLK>;
sram = <&gmu_sram>;
power-domains = <&mmcc OXILICX_GDSC>;
operating-points-v2 = <&gpu_opp_table>;
iommus = <&gpu_iommu 0>;
};
ocmem@fdd00000 {
compatible = "qcom,msm8974-ocmem";
reg = <0xfdd00000 0x2000>,
<0xfec00000 0x180000>;
reg-names = "ctrl",
"mem";
clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>,
<&mmcc OCMEMCX_OCMEMNOC_CLK>;
clock-names = "core",
"iface";
#address-cells = <1>;
#size-cells = <1>;
gmu_sram: gmu-sram@0 {
reg = <0x0 0x100000>;
ranges = <0 0 0xfec00000 0x100000>;
};
};
};

2
Documentation/devicetree/bindings/display/msm/mdp5.txt
View File

@ -76,6 +76,8 @@ Required properties:
Optional properties:
- clock-names: the following clocks are optional:
* "lut"
* "tbu"
* "tbu_rt"
Example:

96
Documentation/devicetree/bindings/sram/qcom,ocmem.yaml Normal file
View File

@ -0,0 +1,96 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sram/qcom,ocmem.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: On Chip Memory (OCMEM) that is present on some Qualcomm Snapdragon SoCs.
maintainers:
- Brian Masney <masneyb@onstation.org>
description: |
The On Chip Memory (OCMEM) is typically used by the GPU, camera/video, and
audio components on some Snapdragon SoCs.
properties:
compatible:
const: qcom,msm8974-ocmem
reg:
items:
- description: Control registers
- description: OCMEM address range
reg-names:
items:
- const: ctrl
- const: mem
clocks:
items:
- description: Core clock
- description: Interface clock
clock-names:
items:
- const: core
- const: iface
'#address-cells':
const: 1
'#size-cells':
const: 1
required:
- compatible
- reg
- reg-names
- clocks
- clock-names
- '#address-cells'
- '#size-cells'
patternProperties:
"^.+-sram$":
type: object
description: A region of reserved memory.
properties:
reg:
maxItems: 1
ranges:
maxItems: 1
required:
- reg
- ranges
examples:
- |
#include <dt-bindings/clock/qcom,rpmcc.h>
#include <dt-bindings/clock/qcom,mmcc-msm8974.h>
ocmem: ocmem@fdd00000 {
compatible = "qcom,msm8974-ocmem";
reg = <0xfdd00000 0x2000>,
<0xfec00000 0x180000>;
reg-names = "ctrl",
"mem";
clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>,
<&mmcc OCMEMCX_OCMEMNOC_CLK>;
clock-names = "core",
"iface";
#address-cells = <1>;
#size-cells = <1>;
gmu-sram@0 {
reg = <0x0 0x100000>;
ranges = <0 0 0xfec00000 0x100000>;
};
};

1
MAINTAINERS
View File

@ -862,7 +862,6 @@ S: Maintained
F: drivers/i2c/busses/i2c-amd-mp2*
AMD POWERPLAY
M: Rex Zhu <rex.zhu@amd.com>
M: Evan Quan <evan.quan@amd.com>
L: amd-gfx@lists.freedesktop.org
S: Supported

4
arch/ia64/include/asm/agp.h
View File

@ -14,8 +14,8 @@
* in coherent mode, which lets us map the AGP memory as normal (write-back) memory
* (unlike x86, where it gets mapped "write-coalescing").
*/
#define map_page_into_agp(page) /* nothing */
#define unmap_page_from_agp(page) /* nothing */
#define map_page_into_agp(page) do { } while (0)
#define unmap_page_from_agp(page) do { } while (0)
#define flush_agp_cache() mb()
/* GATT allocation. Returns/accepts GATT kernel virtual address. */

3
drivers/char/agp/frontend.c
View File

@ -102,14 +102,13 @@ agp_segment_priv *agp_find_seg_in_client(const struct agp_client *client,
int size, pgprot_t page_prot)
{
struct agp_segment_priv *seg;
int num_segments, i;
int i;
off_t pg_start;
size_t pg_count;
pg_start = offset / 4096;
pg_count = size / 4096;
seg = *(client->segments);
num_segments = client->num_segments;
for (i = 0; i < client->num_segments; i++) {
if ((seg[i].pg_start == pg_start) &&

12
drivers/char/agp/generic.c
View File

@ -207,6 +207,7 @@ EXPORT_SYMBOL(agp_free_memory);
/**
* agp_allocate_memory - allocate a group of pages of a certain type.
*
* @bridge: an agp_bridge_data struct allocated for the AGP host bridge.
* @page_count: size_t argument of the number of pages
* @type: u32 argument of the type of memory to be allocated.
*
@ -355,6 +356,7 @@ EXPORT_SYMBOL_GPL(agp_num_entries);
/**
* agp_copy_info - copy bridge state information
*
* @bridge: an agp_bridge_data struct allocated for the AGP host bridge.
* @info: agp_kern_info pointer. The caller should insure that this pointer is valid.
*
* This function copies information about the agp bridge device and the state of
@ -850,7 +852,6 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
{
char *table;
char *table_end;
int size;
int page_order;
int num_entries;
int i;
@ -864,25 +865,22 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
table = NULL;
i = bridge->aperture_size_idx;
temp = bridge->current_size;
size = page_order = num_entries = 0;
page_order = num_entries = 0;
if (bridge->driver->size_type != FIXED_APER_SIZE) {
do {
switch (bridge->driver->size_type) {
case U8_APER_SIZE:
size = A_SIZE_8(temp)->size;
page_order =
A_SIZE_8(temp)->page_order;
num_entries =
A_SIZE_8(temp)->num_entries;
break;
case U16_APER_SIZE:
size = A_SIZE_16(temp)->size;
page_order = A_SIZE_16(temp)->page_order;
num_entries = A_SIZE_16(temp)->num_entries;
break;
case U32_APER_SIZE:
size = A_SIZE_32(temp)->size;
page_order = A_SIZE_32(temp)->page_order;
num_entries = A_SIZE_32(temp)->num_entries;
break;
@ -890,7 +888,7 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
case FIXED_APER_SIZE:
case LVL2_APER_SIZE:
default:
size = page_order = num_entries = 0;
page_order = num_entries = 0;
break;
}
@ -920,7 +918,6 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
}
} while (!table && (i < bridge->driver->num_aperture_sizes));
} else {
size = ((struct aper_size_info_fixed *) temp)->size;
page_order = ((struct aper_size_info_fixed *) temp)->page_order;
num_entries = ((struct aper_size_info_fixed *) temp)->num_entries;
table = alloc_gatt_pages(page_order);
@ -1282,6 +1279,7 @@ EXPORT_SYMBOL(agp_generic_destroy_page);
/**
* agp_enable - initialise the agp point-to-point connection.
*
* @bridge: an agp_bridge_data struct allocated for the AGP host bridge.
* @mode: agp mode register value to configure with.
*/
void agp_enable(struct agp_bridge_data *bridge, u32 mode)

52
drivers/firmware/qcom_scm-32.c
View File

@ -442,6 +442,41 @@ int __qcom_scm_hdcp_req(struct device *dev, struct qcom_scm_hdcp_req *req,
req, req_cnt * sizeof(*req), resp, sizeof(*resp));
}
int __qcom_scm_ocmem_lock(struct device *dev, u32 id, u32 offset, u32 size,
u32 mode)
{
struct ocmem_tz_lock {
__le32 id;
__le32 offset;
__le32 size;
__le32 mode;
} request;
request.id = cpu_to_le32(id);
request.offset = cpu_to_le32(offset);
request.size = cpu_to_le32(size);
request.mode = cpu_to_le32(mode);
return qcom_scm_call(dev, QCOM_SCM_OCMEM_SVC, QCOM_SCM_OCMEM_LOCK_CMD,
&request, sizeof(request), NULL, 0);
}
int __qcom_scm_ocmem_unlock(struct device *dev, u32 id, u32 offset, u32 size)
{
struct ocmem_tz_unlock {
__le32 id;
__le32 offset;
__le32 size;
} request;
request.id = cpu_to_le32(id);
request.offset = cpu_to_le32(offset);
request.size = cpu_to_le32(size);
return qcom_scm_call(dev, QCOM_SCM_OCMEM_SVC, QCOM_SCM_OCMEM_UNLOCK_CMD,
&request, sizeof(request), NULL, 0);
}
void __qcom_scm_init(void)
{
}
@ -582,7 +617,22 @@ int __qcom_scm_assign_mem(struct device *dev, phys_addr_t mem_region,
int __qcom_scm_restore_sec_cfg(struct device *dev, u32 device_id,
u32 spare)
{
return -ENODEV;
struct msm_scm_sec_cfg {
__le32 id;
__le32 ctx_bank_num;
} cfg;
int ret, scm_ret = 0;
cfg.id = cpu_to_le32(device_id);
cfg.ctx_bank_num = cpu_to_le32(spare);
ret = qcom_scm_call(dev, QCOM_SCM_SVC_MP, QCOM_SCM_RESTORE_SEC_CFG,
&cfg, sizeof(cfg), &scm_ret, sizeof(scm_ret));
if (ret || scm_ret)
return ret ? ret : -EINVAL;
return 0;
}
int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare,

12
drivers/firmware/qcom_scm-64.c
View File

@ -291,6 +291,18 @@ int __qcom_scm_hdcp_req(struct device *dev, struct qcom_scm_hdcp_req *req,
return ret;
}
int __qcom_scm_ocmem_lock(struct device *dev, uint32_t id, uint32_t offset,
uint32_t size, uint32_t mode)
{
return -ENOTSUPP;
}
int __qcom_scm_ocmem_unlock(struct device *dev, uint32_t id, uint32_t offset,
uint32_t size)
{
return -ENOTSUPP;
}
void __qcom_scm_init(void)
{
u64 cmd;

53
drivers/firmware/qcom_scm.c
View File

@ -191,6 +191,46 @@ bool qcom_scm_pas_supported(u32 peripheral)
}
EXPORT_SYMBOL(qcom_scm_pas_supported);
/**
* qcom_scm_ocmem_lock_available() - is OCMEM lock/unlock interface available
*/
bool qcom_scm_ocmem_lock_available(void)
{
return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_OCMEM_SVC,
QCOM_SCM_OCMEM_LOCK_CMD);
}
EXPORT_SYMBOL(qcom_scm_ocmem_lock_available);
/**
* qcom_scm_ocmem_lock() - call OCMEM lock interface to assign an OCMEM
* region to the specified initiator
*
* @id: tz initiator id
* @offset: OCMEM offset
* @size: OCMEM size
* @mode: access mode (WIDE/NARROW)
*/
int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset, u32 size,
u32 mode)
{
return __qcom_scm_ocmem_lock(__scm->dev, id, offset, size, mode);
}
EXPORT_SYMBOL(qcom_scm_ocmem_lock);
/**
* qcom_scm_ocmem_unlock() - call OCMEM unlock interface to release an OCMEM
* region from the specified initiator
*
* @id: tz initiator id
* @offset: OCMEM offset
* @size: OCMEM size
*/
int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id, u32 offset, u32 size)
{
return __qcom_scm_ocmem_unlock(__scm->dev, id, offset, size);
}
EXPORT_SYMBOL(qcom_scm_ocmem_unlock);
/**
* qcom_scm_pas_init_image() - Initialize peripheral authentication service
* state machine for a given peripheral, using the
@ -327,6 +367,19 @@ static const struct reset_control_ops qcom_scm_pas_reset_ops = {
.deassert = qcom_scm_pas_reset_deassert,
};
/**
* qcom_scm_restore_sec_cfg_available() - Check if secure environment
* supports restore security config interface.
*
* Return true if restore-cfg interface is supported, false if not.
*/
bool qcom_scm_restore_sec_cfg_available(void)
{
return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_MP,
QCOM_SCM_RESTORE_SEC_CFG);
}
EXPORT_SYMBOL(qcom_scm_restore_sec_cfg_available);
int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare)
{
return __qcom_scm_restore_sec_cfg(__scm->dev, device_id, spare);

9
drivers/firmware/qcom_scm.h
View File

@ -42,6 +42,15 @@ extern int __qcom_scm_hdcp_req(struct device *dev,
extern void __qcom_scm_init(void);
#define QCOM_SCM_OCMEM_SVC 0xf
#define QCOM_SCM_OCMEM_LOCK_CMD 0x1
#define QCOM_SCM_OCMEM_UNLOCK_CMD 0x2
extern int __qcom_scm_ocmem_lock(struct device *dev, u32 id, u32 offset,
u32 size, u32 mode);
extern int __qcom_scm_ocmem_unlock(struct device *dev, u32 id, u32 offset,
u32 size);
#define QCOM_SCM_SVC_PIL 0x2
#define QCOM_SCM_PAS_INIT_IMAGE_CMD 0x1
#define QCOM_SCM_PAS_MEM_SETUP_CMD 0x2

1
drivers/gpu/drm/Kconfig
View File

@ -95,6 +95,7 @@ config DRM_KMS_FB_HELPER
config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
bool "Enable refcount backtrace history in the DP MST helpers"
depends on STACKTRACE_SUPPORT
select STACKDEPOT
depends on DRM_KMS_HELPER
depends on DEBUG_KERNEL

15
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
View File

@ -105,11 +105,24 @@ void amdgpu_amdkfd_gpuvm_init_mem_limits(void)
(kfd_mem_limit.max_ttm_mem_limit >> 20));
}
/* Estimate page table size needed to represent a given memory size
*
* With 4KB pages, we need one 8 byte PTE for each 4KB of memory
* (factor 512, >> 9). With 2MB pages, we need one 8 byte PTE for 2MB
* of memory (factor 256K, >> 18). ROCm user mode tries to optimize
* for 2MB pages for TLB efficiency. However, small allocations and
* fragmented system memory still need some 4KB pages. We choose a
* compromise that should work in most cases without reserving too
* much memory for page tables unnecessarily (factor 16K, >> 14).
*/
#define ESTIMATE_PT_SIZE(mem_size) ((mem_size) >> 14)
static int amdgpu_amdkfd_reserve_mem_limit(struct amdgpu_device *adev,
uint64_t size, u32 domain, bool sg)
{
uint64_t reserved_for_pt =
ESTIMATE_PT_SIZE(amdgpu_amdkfd_total_mem_size);
size_t acc_size, system_mem_needed, ttm_mem_needed, vram_needed;
uint64_t reserved_for_pt = amdgpu_amdkfd_total_mem_size >> 9;
int ret = 0;
acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,

4
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
View File

@ -1487,8 +1487,8 @@ static int psp_np_fw_load(struct psp_context *psp)
return ret;
/* Start rlc autoload after psp recieved all the gfx firmware */
if (psp->autoload_supported && ucode->ucode_id ==
AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM) {
if (psp->autoload_supported && ucode->ucode_id == (amdgpu_sriov_vf(adev) ?
AMDGPU_UCODE_ID_CP_MEC2 : AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM)) {
ret = psp_rlc_autoload(psp);
if (ret) {
DRM_ERROR("Failed to start rlc autoload\n");

17
drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c
View File

@ -27,7 +27,8 @@
#include <linux/bits.h>
#include "smu_v11_0_i2c.h"
#define EEPROM_I2C_TARGET_ADDR 0xA0
#define EEPROM_I2C_TARGET_ADDR_ARCTURUS 0xA8
#define EEPROM_I2C_TARGET_ADDR_VEGA20 0xA0
/*
* The 2 macros bellow represent the actual size in bytes that
@ -83,7 +84,7 @@ static int __update_table_header(struct amdgpu_ras_eeprom_control *control,
{
int ret = 0;
struct i2c_msg msg = {
.addr = EEPROM_I2C_TARGET_ADDR,
.addr = 0,
.flags = 0,
.len = EEPROM_ADDRESS_SIZE + EEPROM_TABLE_HEADER_SIZE,
.buf = buff,
@ -93,6 +94,8 @@ static int __update_table_header(struct amdgpu_ras_eeprom_control *control,
*(uint16_t *)buff = EEPROM_HDR_START;
__encode_table_header_to_buff(&control->tbl_hdr, buff + EEPROM_ADDRESS_SIZE);
msg.addr = control->i2c_address;
ret = i2c_transfer(&control->eeprom_accessor, &msg, 1);
if (ret < 1)
DRM_ERROR("Failed to write EEPROM table header, ret:%d", ret);
@ -203,7 +206,7 @@ int amdgpu_ras_eeprom_init(struct amdgpu_ras_eeprom_control *control)
unsigned char buff[EEPROM_ADDRESS_SIZE + EEPROM_TABLE_HEADER_SIZE] = { 0 };
struct amdgpu_ras_eeprom_table_header *hdr = &control->tbl_hdr;
struct i2c_msg msg = {
.addr = EEPROM_I2C_TARGET_ADDR,
.addr = 0,
.flags = I2C_M_RD,
.len = EEPROM_ADDRESS_SIZE + EEPROM_TABLE_HEADER_SIZE,
.buf = buff,
@ -213,10 +216,12 @@ int amdgpu_ras_eeprom_init(struct amdgpu_ras_eeprom_control *control)
switch (adev->asic_type) {
case CHIP_VEGA20:
control->i2c_address = EEPROM_I2C_TARGET_ADDR_VEGA20;
ret = smu_v11_0_i2c_eeprom_control_init(&control->eeprom_accessor);
break;
case CHIP_ARCTURUS:
control->i2c_address = EEPROM_I2C_TARGET_ADDR_ARCTURUS;
ret = smu_i2c_eeprom_init(&adev->smu, &control->eeprom_accessor);
break;
@ -229,6 +234,8 @@ int amdgpu_ras_eeprom_init(struct amdgpu_ras_eeprom_control *control)
return ret;
}
msg.addr = control->i2c_address;
/* Read/Create table header from EEPROM address 0 */
ret = i2c_transfer(&control->eeprom_accessor, &msg, 1);
if (ret < 1) {
@ -408,8 +415,8 @@ int amdgpu_ras_eeprom_process_recods(struct amdgpu_ras_eeprom_control *control,
* Update bits 16,17 of EEPROM address in I2C address by setting them
* to bits 1,2 of Device address byte
*/
msg->addr = EEPROM_I2C_TARGET_ADDR |
((control->next_addr & EEPROM_ADDR_MSB_MASK) >> 15);
msg->addr = control->i2c_address |
((control->next_addr & EEPROM_ADDR_MSB_MASK) >> 15);
msg->flags = write ? 0 : I2C_M_RD;
msg->len = EEPROM_ADDRESS_SIZE + EEPROM_TABLE_RECORD_SIZE;
msg->buf = buff;

1
drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
View File

@ -50,6 +50,7 @@ struct amdgpu_ras_eeprom_control {
struct mutex tbl_mutex;
bool bus_locked;
uint32_t tbl_byte_sum;
uint16_t i2c_address; // 8-bit represented address
};
/*

10
drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c
View File

@ -124,13 +124,12 @@ int amdgpu_gfx_rlc_init_sr(struct amdgpu_device *adev, u32 dws)
*/
int amdgpu_gfx_rlc_init_csb(struct amdgpu_device *adev)
{
volatile u32 *dst_ptr;
u32 dws;
int r;
/* allocate clear state block */
adev->gfx.rlc.clear_state_size = dws = adev->gfx.rlc.funcs->get_csb_size(adev);
r = amdgpu_bo_create_reserved(adev, dws * 4, PAGE_SIZE,
r = amdgpu_bo_create_kernel(adev, dws * 4, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
&adev->gfx.rlc.clear_state_obj,
&adev->gfx.rlc.clear_state_gpu_addr,
@ -141,13 +140,6 @@ int amdgpu_gfx_rlc_init_csb(struct amdgpu_device *adev)
return r;
}
/* set up the cs buffer */
dst_ptr = adev->gfx.rlc.cs_ptr;
adev->gfx.rlc.funcs->get_csb_buffer(adev, dst_ptr);
amdgpu_bo_kunmap(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unpin(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
return 0;
}

7
drivers/gpu/drm/amd/amdgpu/cik.c
View File

@ -1346,10 +1346,13 @@ static int cik_asic_reset(struct amdgpu_device *adev)
{
int r;
if (cik_asic_reset_method(adev) == AMD_RESET_METHOD_BACO)
if (cik_asic_reset_method(adev) == AMD_RESET_METHOD_BACO) {
if (!adev->in_suspend)
amdgpu_inc_vram_lost(adev);
r = smu7_asic_baco_reset(adev);
else
} else {
r = cik_asic_pci_config_reset(adev);
}
return r;
}

182
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
View File

@ -690,60 +690,62 @@ static int gfx_v10_0_init_microcode(struct amdgpu_device *adev)
adev->gfx.ce_fw_version = le32_to_cpu(cp_hdr->header.ucode_version);
adev->gfx.ce_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version);
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_rlc.bin", chip_name);
err = request_firmware(&adev->gfx.rlc_fw, fw_name, adev->dev);
if (err)
goto out;
err = amdgpu_ucode_validate(adev->gfx.rlc_fw);
rlc_hdr = (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw->data;
version_major = le16_to_cpu(rlc_hdr->header.header_version_major);
version_minor = le16_to_cpu(rlc_hdr->header.header_version_minor);
if (version_major == 2 && version_minor == 1)
adev->gfx.rlc.is_rlc_v2_1 = true;
if (!amdgpu_sriov_vf(adev)) {
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_rlc.bin", chip_name);
err = request_firmware(&adev->gfx.rlc_fw, fw_name, adev->dev);
if (err)
goto out;
err = amdgpu_ucode_validate(adev->gfx.rlc_fw);
rlc_hdr = (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw->data;
version_major = le16_to_cpu(rlc_hdr->header.header_version_major);
version_minor = le16_to_cpu(rlc_hdr->header.header_version_minor);
if (version_major == 2 && version_minor == 1)
adev->gfx.rlc.is_rlc_v2_1 = true;
adev->gfx.rlc_fw_version = le32_to_cpu(rlc_hdr->header.ucode_version);
adev->gfx.rlc_feature_version = le32_to_cpu(rlc_hdr->ucode_feature_version);
adev->gfx.rlc.save_and_restore_offset =
adev->gfx.rlc_fw_version = le32_to_cpu(rlc_hdr->header.ucode_version);
adev->gfx.rlc_feature_version = le32_to_cpu(rlc_hdr->ucode_feature_version);
adev->gfx.rlc.save_and_restore_offset =
le32_to_cpu(rlc_hdr->save_and_restore_offset);
adev->gfx.rlc.clear_state_descriptor_offset =
adev->gfx.rlc.clear_state_descriptor_offset =
le32_to_cpu(rlc_hdr->clear_state_descriptor_offset);
adev->gfx.rlc.avail_scratch_ram_locations =
adev->gfx.rlc.avail_scratch_ram_locations =
le32_to_cpu(rlc_hdr->avail_scratch_ram_locations);
adev->gfx.rlc.reg_restore_list_size =
adev->gfx.rlc.reg_restore_list_size =
le32_to_cpu(rlc_hdr->reg_restore_list_size);
adev->gfx.rlc.reg_list_format_start =
adev->gfx.rlc.reg_list_format_start =
le32_to_cpu(rlc_hdr->reg_list_format_start);
adev->gfx.rlc.reg_list_format_separate_start =
adev->gfx.rlc.reg_list_format_separate_start =
le32_to_cpu(rlc_hdr->reg_list_format_separate_start);
adev->gfx.rlc.starting_offsets_start =
adev->gfx.rlc.starting_offsets_start =
le32_to_cpu(rlc_hdr->starting_offsets_start);
adev->gfx.rlc.reg_list_format_size_bytes =
adev->gfx.rlc.reg_list_format_size_bytes =
le32_to_cpu(rlc_hdr->reg_list_format_size_bytes);
adev->gfx.rlc.reg_list_size_bytes =
adev->gfx.rlc.reg_list_size_bytes =
le32_to_cpu(rlc_hdr->reg_list_size_bytes);
adev->gfx.rlc.register_list_format =
adev->gfx.rlc.register_list_format =
kmalloc(adev->gfx.rlc.reg_list_format_size_bytes +
adev->gfx.rlc.reg_list_size_bytes, GFP_KERNEL);
if (!adev->gfx.rlc.register_list_format) {
err = -ENOMEM;
goto out;
adev->gfx.rlc.reg_list_size_bytes, GFP_KERNEL);
if (!adev->gfx.rlc.register_list_format) {
err = -ENOMEM;
goto out;
}
tmp = (unsigned int *)((uintptr_t)rlc_hdr +
le32_to_cpu(rlc_hdr->reg_list_format_array_offset_bytes));
for (i = 0 ; i < (rlc_hdr->reg_list_format_size_bytes >> 2); i++)
adev->gfx.rlc.register_list_format[i] = le32_to_cpu(tmp[i]);
adev->gfx.rlc.register_restore = adev->gfx.rlc.register_list_format + i;
tmp = (unsigned int *)((uintptr_t)rlc_hdr +
le32_to_cpu(rlc_hdr->reg_list_array_offset_bytes));
for (i = 0 ; i < (rlc_hdr->reg_list_size_bytes >> 2); i++)
adev->gfx.rlc.register_restore[i] = le32_to_cpu(tmp[i]);
if (adev->gfx.rlc.is_rlc_v2_1)
gfx_v10_0_init_rlc_ext_microcode(adev);
}
tmp = (unsigned int *)((uintptr_t)rlc_hdr +
le32_to_cpu(rlc_hdr->reg_list_format_array_offset_bytes));
for (i = 0 ; i < (rlc_hdr->reg_list_format_size_bytes >> 2); i++)
adev->gfx.rlc.register_list_format[i] = le32_to_cpu(tmp[i]);
adev->gfx.rlc.register_restore = adev->gfx.rlc.register_list_format + i;
tmp = (unsigned int *)((uintptr_t)rlc_hdr +
le32_to_cpu(rlc_hdr->reg_list_array_offset_bytes));
for (i = 0 ; i < (rlc_hdr->reg_list_size_bytes >> 2); i++)
adev->gfx.rlc.register_restore[i] = le32_to_cpu(tmp[i]);
if (adev->gfx.rlc.is_rlc_v2_1)
gfx_v10_0_init_rlc_ext_microcode(adev);
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec%s.bin", chip_name, wks);
err = request_firmware(&adev->gfx.mec_fw, fw_name, adev->dev);
if (err)
@ -993,39 +995,6 @@ static int gfx_v10_0_rlc_init(struct amdgpu_device *adev)
return 0;
}
static int gfx_v10_0_csb_vram_pin(struct amdgpu_device *adev)
{
int r;
r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, false);
if (unlikely(r != 0))
return r;
r = amdgpu_bo_pin(adev->gfx.rlc.clear_state_obj,
AMDGPU_GEM_DOMAIN_VRAM);
if (!r)
adev->gfx.rlc.clear_state_gpu_addr =
amdgpu_bo_gpu_offset(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
return r;
}
static void gfx_v10_0_csb_vram_unpin(struct amdgpu_device *adev)
{
int r;
if (!adev->gfx.rlc.clear_state_obj)
return;
r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, true);
if (likely(r == 0)) {
amdgpu_bo_unpin(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
}
}
static void gfx_v10_0_mec_fini(struct amdgpu_device *adev)
{
amdgpu_bo_free_kernel(&adev->gfx.mec.hpd_eop_obj, NULL, NULL);
@ -1787,25 +1756,7 @@ static void gfx_v10_0_enable_gui_idle_interrupt(struct amdgpu_device *adev,
static int gfx_v10_0_init_csb(struct amdgpu_device *adev)
{
int r;
if (adev->in_gpu_reset) {
r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, false);
if (r)
return r;
r = amdgpu_bo_kmap(adev->gfx.rlc.clear_state_obj,
(void **)&adev->gfx.rlc.cs_ptr);
if (!r) {
adev->gfx.rlc.funcs->get_csb_buffer(adev,
adev->gfx.rlc.cs_ptr);
amdgpu_bo_kunmap(adev->gfx.rlc.clear_state_obj);
}
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
if (r)
return r;
}
adev->gfx.rlc.funcs->get_csb_buffer(adev, adev->gfx.rlc.cs_ptr);
/* csib */
WREG32_SOC15(GC, 0, mmRLC_CSIB_ADDR_HI,
@ -1817,22 +1768,6 @@ static int gfx_v10_0_init_csb(struct amdgpu_device *adev)
return 0;
}
static int gfx_v10_0_init_pg(struct amdgpu_device *adev)
{
int i;
int r;
r = gfx_v10_0_init_csb(adev);
if (r)
return r;
for (i = 0; i < adev->num_vmhubs; i++)
amdgpu_gmc_flush_gpu_tlb(adev, 0, i, 0);
/* TODO: init power gating */
return 0;
}
void gfx_v10_0_rlc_stop(struct amdgpu_device *adev)
{
u32 tmp = RREG32_SOC15(GC, 0, mmRLC_CNTL);
@ -1925,21 +1860,16 @@ static int gfx_v10_0_rlc_resume(struct amdgpu_device *adev)
{
int r;
if (amdgpu_sriov_vf(adev))
return 0;
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
r = gfx_v10_0_wait_for_rlc_autoload_complete(adev);
if (r)
return r;
r = gfx_v10_0_init_pg(adev);
if (r)
return r;
/* enable RLC SRM */
gfx_v10_0_rlc_enable_srm(adev);
gfx_v10_0_init_csb(adev);
if (!amdgpu_sriov_vf(adev)) /* enable RLC SRM */
gfx_v10_0_rlc_enable_srm(adev);
} else {
adev->gfx.rlc.funcs->stop(adev);
@ -1961,9 +1891,7 @@ static int gfx_v10_0_rlc_resume(struct amdgpu_device *adev)
return r;
}
r = gfx_v10_0_init_pg(adev);
if (r)
return r;
gfx_v10_0_init_csb(adev);
adev->gfx.rlc.funcs->start(adev);
@ -2825,7 +2753,7 @@ static int gfx_v10_0_cp_gfx_resume(struct amdgpu_device *adev)
/* Init gfx ring 0 for pipe 0 */
mutex_lock(&adev->srbm_mutex);
gfx_v10_0_cp_gfx_switch_pipe(adev, PIPE_ID0);
mutex_unlock(&adev->srbm_mutex);
/* Set ring buffer size */
ring = &adev->gfx.gfx_ring[0];
rb_bufsz = order_base_2(ring->ring_size / 8);
@ -2863,11 +2791,11 @@ static int gfx_v10_0_cp_gfx_resume(struct amdgpu_device *adev)
WREG32_SOC15(GC, 0, mmCP_RB_ACTIVE, 1);
gfx_v10_0_cp_gfx_set_doorbell(adev, ring);
mutex_unlock(&adev->srbm_mutex);
/* Init gfx ring 1 for pipe 1 */
mutex_lock(&adev->srbm_mutex);
gfx_v10_0_cp_gfx_switch_pipe(adev, PIPE_ID1);
mutex_unlock(&adev->srbm_mutex);
ring = &adev->gfx.gfx_ring[1];
rb_bufsz = order_base_2(ring->ring_size / 8);
tmp = REG_SET_FIELD(0, CP_RB1_CNTL, RB_BUFSZ, rb_bufsz);
@ -2897,6 +2825,7 @@ static int gfx_v10_0_cp_gfx_resume(struct amdgpu_device *adev)
WREG32_SOC15(GC, 0, mmCP_RB1_ACTIVE, 1);
gfx_v10_0_cp_gfx_set_doorbell(adev, ring);
mutex_unlock(&adev->srbm_mutex);
/* Switch to pipe 0 */
mutex_lock(&adev->srbm_mutex);
@ -3775,10 +3704,6 @@ static int gfx_v10_0_hw_init(void *handle)
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = gfx_v10_0_csb_vram_pin(adev);
if (r)
return r;
if (!amdgpu_emu_mode)
gfx_v10_0_init_golden_registers(adev);
@ -3861,12 +3786,11 @@ static int gfx_v10_0_hw_fini(void *handle)
if (amdgpu_gfx_disable_kcq(adev))
DRM_ERROR("KCQ disable failed\n");
if (amdgpu_sriov_vf(adev)) {
pr_debug("For SRIOV client, shouldn't do anything.\n");
gfx_v10_0_cp_gfx_enable(adev, false);
return 0;
}
gfx_v10_0_cp_enable(adev, false);
gfx_v10_0_enable_gui_idle_interrupt(adev, false);
gfx_v10_0_csb_vram_unpin(adev);
return 0;
}

2
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
View File

@ -4554,6 +4554,8 @@ static int gfx_v7_0_hw_init(void *handle)
gfx_v7_0_constants_init(adev);
/* init CSB */
adev->gfx.rlc.funcs->get_csb_buffer(adev, adev->gfx.rlc.cs_ptr);
/* init rlc */
r = adev->gfx.rlc.funcs->resume(adev);
if (r)

40
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View File

@ -1321,39 +1321,6 @@ static int gfx_v8_0_rlc_init(struct amdgpu_device *adev)
return 0;
}
static int gfx_v8_0_csb_vram_pin(struct amdgpu_device *adev)
{
int r;
r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, false);
if (unlikely(r != 0))
return r;
r = amdgpu_bo_pin(adev->gfx.rlc.clear_state_obj,
AMDGPU_GEM_DOMAIN_VRAM);
if (!r)
adev->gfx.rlc.clear_state_gpu_addr =
amdgpu_bo_gpu_offset(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
return r;
}
static void gfx_v8_0_csb_vram_unpin(struct amdgpu_device *adev)
{
int r;
if (!adev->gfx.rlc.clear_state_obj)
return;
r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, true);
if (likely(r == 0)) {
amdgpu_bo_unpin(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
}
}
static void gfx_v8_0_mec_fini(struct amdgpu_device *adev)
{
amdgpu_bo_free_kernel(&adev->gfx.mec.hpd_eop_obj, NULL, NULL);
@ -3917,6 +3884,7 @@ static void gfx_v8_0_enable_gui_idle_interrupt(struct amdgpu_device *adev,
static void gfx_v8_0_init_csb(struct amdgpu_device *adev)
{
adev->gfx.rlc.funcs->get_csb_buffer(adev, adev->gfx.rlc.cs_ptr);
/* csib */
WREG32(mmRLC_CSIB_ADDR_HI,
adev->gfx.rlc.clear_state_gpu_addr >> 32);
@ -4837,10 +4805,6 @@ static int gfx_v8_0_hw_init(void *handle)
gfx_v8_0_init_golden_registers(adev);
gfx_v8_0_constants_init(adev);
r = gfx_v8_0_csb_vram_pin(adev);
if (r)
return r;
r = adev->gfx.rlc.funcs->resume(adev);
if (r)
return r;
@ -4958,8 +4922,6 @@ static int gfx_v8_0_hw_fini(void *handle)
pr_err("rlc is busy, skip halt rlc\n");
amdgpu_gfx_rlc_exit_safe_mode(adev);
gfx_v8_0_csb_vram_unpin(adev);
return 0;
}

40
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
View File

@ -1695,39 +1695,6 @@ static int gfx_v9_0_rlc_init(struct amdgpu_device *adev)
return 0;
}
static int gfx_v9_0_csb_vram_pin(struct amdgpu_device *adev)
{
int r;
r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, false);
if (unlikely(r != 0))
return r;
r = amdgpu_bo_pin(adev->gfx.rlc.clear_state_obj,
AMDGPU_GEM_DOMAIN_VRAM);
if (!r)
adev->gfx.rlc.clear_state_gpu_addr =
amdgpu_bo_gpu_offset(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
return r;
}
static void gfx_v9_0_csb_vram_unpin(struct amdgpu_device *adev)
{
int r;
if (!adev->gfx.rlc.clear_state_obj)
return;
r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, true);
if (likely(r == 0)) {
amdgpu_bo_unpin(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
}
}
static void gfx_v9_0_mec_fini(struct amdgpu_device *adev)
{
amdgpu_bo_free_kernel(&adev->gfx.mec.hpd_eop_obj, NULL, NULL);
@ -2415,6 +2382,7 @@ static void gfx_v9_0_enable_gui_idle_interrupt(struct amdgpu_device *adev,
static void gfx_v9_0_init_csb(struct amdgpu_device *adev)
{
adev->gfx.rlc.funcs->get_csb_buffer(adev, adev->gfx.rlc.cs_ptr);
/* csib */
WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmRLC_CSIB_ADDR_HI),
adev->gfx.rlc.clear_state_gpu_addr >> 32);
@ -3706,10 +3674,6 @@ static int gfx_v9_0_hw_init(void *handle)
gfx_v9_0_constants_init(adev);
r = gfx_v9_0_csb_vram_pin(adev);
if (r)
return r;
r = adev->gfx.rlc.funcs->resume(adev);
if (r)
return r;
@ -3791,8 +3755,6 @@ static int gfx_v9_0_hw_fini(void *handle)
gfx_v9_0_cp_enable(adev, false);
adev->gfx.rlc.funcs->stop(adev);
gfx_v9_0_csb_vram_unpin(adev);
return 0;
}

19
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
View File

@ -33,16 +33,31 @@ int gfxhub_v1_1_get_xgmi_info(struct amdgpu_device *adev)
u32 xgmi_lfb_cntl = RREG32_SOC15(GC, 0, mmMC_VM_XGMI_LFB_CNTL);
u32 max_region =
REG_GET_FIELD(xgmi_lfb_cntl, MC_VM_XGMI_LFB_CNTL, PF_MAX_REGION);
u32 max_num_physical_nodes = 0;
u32 max_physical_node_id = 0;
switch (adev->asic_type) {
case CHIP_VEGA20:
max_num_physical_nodes = 4;
max_physical_node_id = 3;
break;
case CHIP_ARCTURUS:
max_num_physical_nodes = 8;
max_physical_node_id = 7;
break;
default:
return -EINVAL;
}
/* PF_MAX_REGION=0 means xgmi is disabled */
if (max_region) {
adev->gmc.xgmi.num_physical_nodes = max_region + 1;
if (adev->gmc.xgmi.num_physical_nodes > 4)
if (adev->gmc.xgmi.num_physical_nodes > max_num_physical_nodes)
return -EINVAL;
adev->gmc.xgmi.physical_node_id =
REG_GET_FIELD(xgmi_lfb_cntl, MC_VM_XGMI_LFB_CNTL, PF_LFB_REGION);
if (adev->gmc.xgmi.physical_node_id > 3)
if (adev->gmc.xgmi.physical_node_id > max_physical_node_id)
return -EINVAL;
adev->gmc.xgmi.node_segment_size = REG_GET_FIELD(
RREG32_SOC15(GC, 0, mmMC_VM_XGMI_LFB_SIZE),

3
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
View File

@ -326,7 +326,8 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
if (!adev->mman.buffer_funcs_enabled ||
!adev->ib_pool_ready ||
adev->in_gpu_reset) {
adev->in_gpu_reset ||
ring->sched.ready == false) {
gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;

7
drivers/gpu/drm/amd/amdgpu/vi.c
View File

@ -783,10 +783,13 @@ static int vi_asic_reset(struct amdgpu_device *adev)
{
int r;
if (vi_asic_reset_method(adev) == AMD_RESET_METHOD_BACO)
if (vi_asic_reset_method(adev) == AMD_RESET_METHOD_BACO) {
if (!adev->in_suspend)
amdgpu_inc_vram_lost(adev);
r = smu7_asic_baco_reset(adev);
else
} else {
r = vi_asic_pci_config_reset(adev);
}
return r;
}

2
drivers/gpu/drm/amd/amdkfd/Kconfig
View File

@ -5,7 +5,7 @@
config HSA_AMD
bool "HSA kernel driver for AMD GPU devices"
depends on DRM_AMDGPU && (X86_64 || ARM64)
depends on DRM_AMDGPU && (X86_64 || ARM64 || PPC64)
imply AMD_IOMMU_V2 if X86_64
select MMU_NOTIFIER
help

3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
View File

@ -342,7 +342,8 @@ bool dm_pp_get_clock_levels_by_type(
if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_clock_by_type) {
if (adev->powerplay.pp_funcs->get_clock_by_type(pp_handle,
dc_to_pp_clock_type(clk_type), &pp_clks)) {
/* Error in pplib. Provide default values. */
/* Error in pplib. Provide default values. */
get_default_clock_levels(clk_type, dc_clks);
return true;
}
} else if (adev->smu.ppt_funcs && adev->smu.ppt_funcs->get_clock_by_type) {

19
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
View File

@ -1037,6 +1037,25 @@ void dcn20_pipe_control_lock(
if (pipe->plane_state != NULL)
flip_immediate = pipe->plane_state->flip_immediate;
if (flip_immediate && lock) {
const int TIMEOUT_FOR_FLIP_PENDING = 100000;
int i;
for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) {
if (!pipe->plane_res.hubp->funcs->hubp_is_flip_pending(pipe->plane_res.hubp))
break;
udelay(1);
}
if (pipe->bottom_pipe != NULL) {
for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) {
if (!pipe->bottom_pipe->plane_res.hubp->funcs->hubp_is_flip_pending(pipe->bottom_pipe->plane_res.hubp))
break;
udelay(1);
}
}
}
/* In flip immediate and pipe splitting case, we need to use GSL
* for synchronization. Only do setup on locking and on flip type change.
*/

74
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
View File

@ -157,6 +157,74 @@ struct _vcs_dpi_ip_params_st dcn2_0_ip = {
.xfc_fill_constant_bytes = 0,
};
struct _vcs_dpi_ip_params_st dcn2_0_nv14_ip = {
.odm_capable = 1,
.gpuvm_enable = 0,
.hostvm_enable = 0,
.gpuvm_max_page_table_levels = 4,
.hostvm_max_page_table_levels = 4,
.hostvm_cached_page_table_levels = 0,
.num_dsc = 5,
.rob_buffer_size_kbytes = 168,
.det_buffer_size_kbytes = 164,
.dpte_buffer_size_in_pte_reqs_luma = 84,
.dpte_buffer_size_in_pte_reqs_chroma = 42,//todo
.dpp_output_buffer_pixels = 2560,
.opp_output_buffer_lines = 1,
.pixel_chunk_size_kbytes = 8,
.pte_enable = 1,
.max_page_table_levels = 4,
.pte_chunk_size_kbytes = 2,
.meta_chunk_size_kbytes = 2,
.writeback_chunk_size_kbytes = 2,
.line_buffer_size_bits = 789504,
.is_line_buffer_bpp_fixed = 0,
.line_buffer_fixed_bpp = 0,
.dcc_supported = true,
.max_line_buffer_lines = 12,
.writeback_luma_buffer_size_kbytes = 12,
.writeback_chroma_buffer_size_kbytes = 8,
.writeback_chroma_line_buffer_width_pixels = 4,
.writeback_max_hscl_ratio = 1,
.writeback_max_vscl_ratio = 1,
.writeback_min_hscl_ratio = 1,
.writeback_min_vscl_ratio = 1,
.writeback_max_hscl_taps = 12,
.writeback_max_vscl_taps = 12,
.writeback_line_buffer_luma_buffer_size = 0,
.writeback_line_buffer_chroma_buffer_size = 14643,
.cursor_buffer_size = 8,
.cursor_chunk_size = 2,
.max_num_otg = 5,
.max_num_dpp = 5,
.max_num_wb = 1,
.max_dchub_pscl_bw_pix_per_clk = 4,
.max_pscl_lb_bw_pix_per_clk = 2,
.max_lb_vscl_bw_pix_per_clk = 4,
.max_vscl_hscl_bw_pix_per_clk = 4,
.max_hscl_ratio = 8,
.max_vscl_ratio = 8,
.hscl_mults = 4,
.vscl_mults = 4,
.max_hscl_taps = 8,
.max_vscl_taps = 8,
.dispclk_ramp_margin_percent = 1,
.underscan_factor = 1.10,
.min_vblank_lines = 32, //
.dppclk_delay_subtotal = 77, //
.dppclk_delay_scl_lb_only = 16,
.dppclk_delay_scl = 50,
.dppclk_delay_cnvc_formatter = 8,
.dppclk_delay_cnvc_cursor = 6,
.dispclk_delay_subtotal = 87, //
.dcfclk_cstate_latency = 10, // SRExitTime
.max_inter_dcn_tile_repeaters = 8,
.xfc_supported = true,
.xfc_fill_bw_overhead_percent = 10.0,
.xfc_fill_constant_bytes = 0,
.ptoi_supported = 0
};
struct _vcs_dpi_soc_bounding_box_st dcn2_0_soc = {
/* Defaults that get patched on driver load from firmware. */
.clock_limits = {
@ -854,6 +922,8 @@ static const struct resource_caps res_cap_nv14 = {
.num_pll = 5,
.num_dwb = 1,
.num_ddc = 5,
.num_vmid = 16,
.num_dsc = 5,
};
static const struct dc_debug_options debug_defaults_drv = {
@ -3212,6 +3282,10 @@ static struct _vcs_dpi_soc_bounding_box_st *get_asic_rev_soc_bb(
static struct _vcs_dpi_ip_params_st *get_asic_rev_ip_params(
uint32_t hw_internal_rev)
{
/* NV14 */
if (ASICREV_IS_NAVI14_M(hw_internal_rev))
return &dcn2_0_nv14_ip;
/* NV12 and NV10 */
return &dcn2_0_ip;
}

9
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
View File

@ -2548,3 +2548,12 @@ uint32_t smu_get_pptable_power_limit(struct smu_context *smu)
return ret;
}
int smu_send_smc_msg(struct smu_context *smu,
enum smu_message_type msg)
{
int ret;
ret = smu_send_smc_msg_with_param(smu, msg, 0);
return ret;
}

1
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
View File

@ -2130,7 +2130,6 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
.set_tool_table_location = smu_v11_0_set_tool_table_location,
.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
.system_features_control = smu_v11_0_system_features_control,
.send_smc_msg = smu_v11_0_send_msg,
.send_smc_msg_with_param = smu_v11_0_send_msg_with_param,
.read_smc_arg = smu_v11_0_read_arg,
.init_display_count = smu_v11_0_init_display_count,

4
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
View File

@ -497,8 +497,8 @@ struct pptable_funcs {
int (*notify_memory_pool_location)(struct smu_context *smu);
int (*set_last_dcef_min_deep_sleep_clk)(struct smu_context *smu);
int (*system_features_control)(struct smu_context *smu, bool en);
int (*send_smc_msg)(struct smu_context *smu, uint16_t msg);
int (*send_smc_msg_with_param)(struct smu_context *smu, uint16_t msg, uint32_t param);
int (*send_smc_msg_with_param)(struct smu_context *smu,
enum smu_message_type msg, uint32_t param);
int (*read_smc_arg)(struct smu_context *smu, uint32_t *arg);
int (*init_display_count)(struct smu_context *smu, uint32_t count);
int (*set_allowed_mask)(struct smu_context *smu);

5
drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
View File

@ -177,10 +177,9 @@ int smu_v11_0_notify_memory_pool_location(struct smu_context *smu);
int smu_v11_0_system_features_control(struct smu_context *smu,
bool en);
int smu_v11_0_send_msg(struct smu_context *smu, uint16_t msg);
int
smu_v11_0_send_msg_with_param(struct smu_context *smu, uint16_t msg,
smu_v11_0_send_msg_with_param(struct smu_context *smu,
enum smu_message_type msg,
uint32_t param);
int smu_v11_0_read_arg(struct smu_context *smu, uint32_t *arg);

5
drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h
View File

@ -44,10 +44,9 @@ int smu_v12_0_read_arg(struct smu_context *smu, uint32_t *arg);
int smu_v12_0_wait_for_response(struct smu_context *smu);
int smu_v12_0_send_msg(struct smu_context *smu, uint16_t msg);
int
smu_v12_0_send_msg_with_param(struct smu_context *smu, uint16_t msg,
smu_v12_0_send_msg_with_param(struct smu_context *smu,
enum smu_message_type msg,
uint32_t param);
int smu_v12_0_check_fw_status(struct smu_context *smu);

1
drivers/gpu/drm/amd/powerplay/navi10_ppt.c
View File

@ -2055,7 +2055,6 @@ static const struct pptable_funcs navi10_ppt_funcs = {
.set_tool_table_location = smu_v11_0_set_tool_table_location,
.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
.system_features_control = smu_v11_0_system_features_control,
.send_smc_msg = smu_v11_0_send_msg,
.send_smc_msg_with_param = smu_v11_0_send_msg_with_param,
.read_smc_arg = smu_v11_0_read_arg,
.init_display_count = smu_v11_0_init_display_count,

1
drivers/gpu/drm/amd/powerplay/renoir_ppt.c
View File

@ -697,7 +697,6 @@ static const struct pptable_funcs renoir_ppt_funcs = {
.check_fw_version = smu_v12_0_check_fw_version,
.powergate_sdma = smu_v12_0_powergate_sdma,
.powergate_vcn = smu_v12_0_powergate_vcn,
.send_smc_msg = smu_v12_0_send_msg,
.send_smc_msg_with_param = smu_v12_0_send_msg_with_param,
.read_smc_arg = smu_v12_0_read_arg,
.set_gfx_cgpg = smu_v12_0_set_gfx_cgpg,

4
drivers/gpu/drm/amd/powerplay/smu_internal.h
View File

@ -75,8 +75,8 @@
#define smu_set_default_od_settings(smu, initialize) \
((smu)->ppt_funcs->set_default_od_settings ? (smu)->ppt_funcs->set_default_od_settings((smu), (initialize)) : 0)
#define smu_send_smc_msg(smu, msg) \
((smu)->ppt_funcs->send_smc_msg? (smu)->ppt_funcs->send_smc_msg((smu), (msg)) : 0)
int smu_send_smc_msg(struct smu_context *smu, enum smu_message_type msg);
#define smu_send_smc_msg_with_param(smu, msg, param) \
((smu)->ppt_funcs->send_smc_msg_with_param? (smu)->ppt_funcs->send_smc_msg_with_param((smu), (msg), (param)) : 0)
#define smu_read_smc_arg(smu, arg) \

29
drivers/gpu/drm/amd/powerplay/smu_v11_0.c
View File

@ -90,36 +90,11 @@ static int smu_v11_0_wait_for_response(struct smu_context *smu)
return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90) == 0x1 ? 0 : -EIO;
}
int smu_v11_0_send_msg(struct smu_context *smu, uint16_t msg)
{
struct amdgpu_device *adev = smu->adev;
int ret = 0, index = 0;
index = smu_msg_get_index(smu, msg);
if (index < 0)
return index;
smu_v11_0_wait_for_response(smu);
WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
smu_v11_0_send_msg_without_waiting(smu, (uint16_t)index);
ret = smu_v11_0_wait_for_response(smu);
if (ret)
pr_err("failed send message: %10s (%d) response %#x\n",
smu_get_message_name(smu, msg), index, ret);
return ret;
}
int
smu_v11_0_send_msg_with_param(struct smu_context *smu, uint16_t msg,
smu_v11_0_send_msg_with_param(struct smu_context *smu,
enum smu_message_type msg,
uint32_t param)
{
struct amdgpu_device *adev = smu->adev;
int ret = 0, index = 0;

28
drivers/gpu/drm/amd/powerplay/smu_v12_0.c
View File

@ -77,33 +77,9 @@ int smu_v12_0_wait_for_response(struct smu_context *smu)
return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90) == 0x1 ? 0 : -EIO;
}
int smu_v12_0_send_msg(struct smu_context *smu, uint16_t msg)
{
struct amdgpu_device *adev = smu->adev;
int ret = 0, index = 0;
index = smu_msg_get_index(smu, msg);
if (index < 0)
return index;
smu_v12_0_wait_for_response(smu);
WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
smu_v12_0_send_msg_without_waiting(smu, (uint16_t)index);
ret = smu_v12_0_wait_for_response(smu);
if (ret)
pr_err("Failed to send message 0x%x, response 0x%x\n", index,
ret);
return ret;
}
int
smu_v12_0_send_msg_with_param(struct smu_context *smu, uint16_t msg,
smu_v12_0_send_msg_with_param(struct smu_context *smu,
enum smu_message_type msg,
uint32_t param)
{
struct amdgpu_device *adev = smu->adev;

1
drivers/gpu/drm/amd/powerplay/vega20_ppt.c
View File

@ -3231,7 +3231,6 @@ static const struct pptable_funcs vega20_ppt_funcs = {
.set_tool_table_location = smu_v11_0_set_tool_table_location,
.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
.system_features_control = smu_v11_0_system_features_control,
.send_smc_msg = smu_v11_0_send_msg,
.send_smc_msg_with_param = smu_v11_0_send_msg_with_param,
.read_smc_arg = smu_v11_0_read_arg,
.init_display_count = smu_v11_0_init_display_count,

6
drivers/gpu/drm/drm_dp_mst_topology.c
View File

@ -3176,9 +3176,11 @@ int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr)
drm_dp_mst_topology_put_port(port);
}
for (i = 0; i < mgr->max_payloads; i++) {
if (mgr->payloads[i].payload_state != DP_PAYLOAD_DELETE_LOCAL)
for (i = 0; i < mgr->max_payloads; /* do nothing */) {
if (mgr->payloads[i].payload_state != DP_PAYLOAD_DELETE_LOCAL) {
i++;
continue;
}
DRM_DEBUG_KMS("removing payload %d\n", i);
for (j = i; j < mgr->max_payloads - 1; j++) {

2
drivers/gpu/drm/i915/Kconfig.profile
View File

@ -25,7 +25,7 @@ config DRM_I915_HEARTBEAT_INTERVAL
config DRM_I915_PREEMPT_TIMEOUT
int "Preempt timeout (ms, jiffy granularity)"
default 100 # milliseconds
default 640 # milliseconds
help
How long to wait (in milliseconds) for a preemption event to occur
when submitting a new context via execlists. If the current context

4
drivers/gpu/drm/i915/display/intel_cdclk.c
View File

@ -1273,7 +1273,9 @@ static u8 icl_calc_voltage_level(int cdclk)
static u8 ehl_calc_voltage_level(int cdclk)
{
if (cdclk > 312000)
if (cdclk > 326400)
return 3;
else if (cdclk > 312000)
return 2;
else if (cdclk > 180000)
return 1;

29
drivers/gpu/drm/i915/display/intel_ddi.c
View File

@ -593,7 +593,7 @@ struct tgl_dkl_phy_ddi_buf_trans {
u32 dkl_de_emphasis_control;
};
static const struct tgl_dkl_phy_ddi_buf_trans tgl_dkl_phy_ddi_translations[] = {
static const struct tgl_dkl_phy_ddi_buf_trans tgl_dkl_phy_dp_ddi_trans[] = {
/* VS pre-emp Non-trans mV Pre-emph dB */
{ 0x7, 0x0, 0x00 }, /* 0 0 400mV 0 dB */
{ 0x5, 0x0, 0x03 }, /* 0 1 400mV 3.5 dB */
@ -607,6 +607,20 @@ static const struct tgl_dkl_phy_ddi_buf_trans tgl_dkl_phy_ddi_translations[] = {
{ 0x0, 0x0, 0x00 }, /* 3 0 1200mV 0 dB HDMI default */
};
static const struct tgl_dkl_phy_ddi_buf_trans tgl_dkl_phy_hdmi_ddi_trans[] = {
/* HDMI Preset VS Pre-emph */
{ 0x7, 0x0, 0x0 }, /* 1 400mV 0dB */
{ 0x6, 0x0, 0x0 }, /* 2 500mV 0dB */
{ 0x4, 0x0, 0x0 }, /* 3 650mV 0dB */
{ 0x2, 0x0, 0x0 }, /* 4 800mV 0dB */
{ 0x0, 0x0, 0x0 }, /* 5 1000mV 0dB */
{ 0x0, 0x0, 0x5 }, /* 6 Full -1.5 dB */
{ 0x0, 0x0, 0x6 }, /* 7 Full -1.8 dB */
{ 0x0, 0x0, 0x7 }, /* 8 Full -2 dB */
{ 0x0, 0x0, 0x8 }, /* 9 Full -2.5 dB */
{ 0x0, 0x0, 0xA }, /* 10 Full -3 dB */
};
static const struct ddi_buf_trans *
bdw_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
{
@ -898,7 +912,7 @@ static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port por
icl_get_combo_buf_trans(dev_priv, INTEL_OUTPUT_HDMI,
0, &n_entries);
else
n_entries = ARRAY_SIZE(tgl_dkl_phy_ddi_translations);
n_entries = ARRAY_SIZE(tgl_dkl_phy_hdmi_ddi_trans);
default_entry = n_entries - 1;
} else if (INTEL_GEN(dev_priv) == 11) {
if (intel_phy_is_combo(dev_priv, phy))
@ -2371,7 +2385,7 @@ u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder)
icl_get_combo_buf_trans(dev_priv, encoder->type,
intel_dp->link_rate, &n_entries);
else
n_entries = ARRAY_SIZE(tgl_dkl_phy_ddi_translations);
n_entries = ARRAY_SIZE(tgl_dkl_phy_dp_ddi_trans);
} else if (INTEL_GEN(dev_priv) == 11) {
if (intel_phy_is_combo(dev_priv, phy))
icl_get_combo_buf_trans(dev_priv, encoder->type,
@ -2823,8 +2837,13 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder, int link_clock,
const struct tgl_dkl_phy_ddi_buf_trans *ddi_translations;
u32 n_entries, val, ln, dpcnt_mask, dpcnt_val;
n_entries = ARRAY_SIZE(tgl_dkl_phy_ddi_translations);
ddi_translations = tgl_dkl_phy_ddi_translations;
if (encoder->type == INTEL_OUTPUT_HDMI) {
n_entries = ARRAY_SIZE(tgl_dkl_phy_hdmi_ddi_trans);
ddi_translations = tgl_dkl_phy_hdmi_ddi_trans;
} else {
n_entries = ARRAY_SIZE(tgl_dkl_phy_dp_ddi_trans);
ddi_translations = tgl_dkl_phy_dp_ddi_trans;
}
if (level >= n_entries)
level = n_entries - 1;

12
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -5476,15 +5476,13 @@ static bool bxt_digital_port_connected(struct intel_encoder *encoder)
return I915_READ(GEN8_DE_PORT_ISR) & bit;
}
static bool icl_combo_port_connected(struct drm_i915_private *dev_priv,
struct intel_digital_port *intel_dig_port)
static bool intel_combo_phy_connected(struct drm_i915_private *dev_priv,
enum phy phy)
{
enum port port = intel_dig_port->base.port;
if (HAS_PCH_MCC(dev_priv) && port == PORT_C)
if (HAS_PCH_MCC(dev_priv) && phy == PHY_C)
return I915_READ(SDEISR) & SDE_TC_HOTPLUG_ICP(PORT_TC1);
return I915_READ(SDEISR) & SDE_DDI_HOTPLUG_ICP(port);
return I915_READ(SDEISR) & SDE_DDI_HOTPLUG_ICP(phy);
}
static bool icl_digital_port_connected(struct intel_encoder *encoder)
@ -5494,7 +5492,7 @@ static bool icl_digital_port_connected(struct intel_encoder *encoder)
enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
if (intel_phy_is_combo(dev_priv, phy))
return icl_combo_port_connected(dev_priv, dig_port);
return intel_combo_phy_connected(dev_priv, phy);
else if (intel_phy_is_tc(dev_priv, phy))
return intel_tc_port_connected(dig_port);
else

4
drivers/gpu/drm/i915/gem/i915_gem_context.c
View File

@ -368,7 +368,7 @@ static struct intel_engine_cs *active_engine(struct intel_context *ce)
if (!ce->timeline)
return NULL;
rcu_read_lock();
mutex_lock(&ce->timeline->mutex);
list_for_each_entry_reverse(rq, &ce->timeline->requests, link) {
if (i915_request_completed(rq))
break;
@ -378,7 +378,7 @@ static struct intel_engine_cs *active_engine(struct intel_context *ce)
if (engine)
break;
}
rcu_read_unlock();
mutex_unlock(&ce->timeline->mutex);
return engine;
}

21
drivers/gpu/drm/i915/gt/intel_context.c
View File

@ -310,10 +310,23 @@ int intel_context_prepare_remote_request(struct intel_context *ce,
GEM_BUG_ON(rq->hw_context == ce);
if (rcu_access_pointer(rq->timeline) != tl) { /* timeline sharing! */
err = mutex_lock_interruptible_nested(&tl->mutex,
SINGLE_DEPTH_NESTING);
if (err)
return err;
/*
* Ideally, we just want to insert our foreign fence as
* a barrier into the remove context, such that this operation
* occurs after all current operations in that context, and
* all future operations must occur after this.
*
* Currently, the timeline->last_request tracking is guarded
* by its mutex and so we must obtain that to atomically
* insert our barrier. However, since we already hold our
* timeline->mutex, we must be careful against potential
* inversion if we are the kernel_context as the remote context
* will itself poke at the kernel_context when it needs to
* unpin. Ergo, if already locked, we drop both locks and
* try again (through the magic of userspace repeating EAGAIN).
*/
if (!mutex_trylock(&tl->mutex))
return -EAGAIN;
/* Queue this switch after current activity by this context. */
err = i915_active_fence_set(&tl->last_request, rq);

4
drivers/gpu/drm/i915/gt/intel_engine.h
View File

@ -100,9 +100,7 @@ execlists_num_ports(const struct intel_engine_execlists * const execlists)
static inline struct i915_request *
execlists_active(const struct intel_engine_execlists *execlists)
{
GEM_BUG_ON(execlists->active - execlists->inflight >
execlists_num_ports(execlists));
return READ_ONCE(*execlists->active);
return *READ_ONCE(execlists->active);
}
static inline void

8
drivers/gpu/drm/i915/gt/intel_engine_cs.c
View File

@ -28,13 +28,13 @@
#include "i915_drv.h"
#include "gt/intel_gt.h"
#include "intel_context.h"
#include "intel_engine.h"
#include "intel_engine_pm.h"
#include "intel_engine_pool.h"
#include "intel_engine_user.h"
#include "intel_context.h"
#include "intel_gt.h"
#include "intel_gt_requests.h"
#include "intel_lrc.h"
#include "intel_reset.h"
#include "intel_ring.h"
@ -616,6 +616,7 @@ static int intel_engine_setup_common(struct intel_engine_cs *engine)
intel_engine_init_execlists(engine);
intel_engine_init_cmd_parser(engine);
intel_engine_init__pm(engine);
intel_engine_init_retire(engine);
intel_engine_pool_init(&engine->pool);
@ -838,6 +839,7 @@ void intel_engine_cleanup_common(struct intel_engine_cs *engine)
cleanup_status_page(engine);
intel_engine_fini_retire(engine);
intel_engine_pool_fini(&engine->pool);
intel_engine_fini_breadcrumbs(engine);
intel_engine_cleanup_cmd_parser(engine);

67
drivers/gpu/drm/i915/gt/intel_engine_pm.c
View File

@ -73,8 +73,42 @@ static inline void __timeline_mark_unlock(struct intel_context *ce,
#endif /* !IS_ENABLED(CONFIG_LOCKDEP) */
static void
__queue_and_release_pm(struct i915_request *rq,
struct intel_timeline *tl,
struct intel_engine_cs *engine)
{
struct intel_gt_timelines *timelines = &engine->gt->timelines;
GEM_TRACE("%s\n", engine->name);
/*
* We have to serialise all potential retirement paths with our
* submission, as we don't want to underflow either the
* engine->wakeref.counter or our timeline->active_count.
*
* Equally, we cannot allow a new submission to start until
* after we finish queueing, nor could we allow that submitter
* to retire us before we are ready!
*/
spin_lock(&timelines->lock);
/* Let intel_gt_retire_requests() retire us (acquired under lock) */
if (!atomic_fetch_inc(&tl->active_count))
list_add_tail(&tl->link, &timelines->active_list);
/* Hand the request over to HW and so engine_retire() */
__i915_request_queue(rq, NULL);
/* Let new submissions commence (and maybe retire this timeline) */
__intel_wakeref_defer_park(&engine->wakeref);
spin_unlock(&timelines->lock);
}
static bool switch_to_kernel_context(struct intel_engine_cs *engine)
{
struct intel_context *ce = engine->kernel_context;
struct i915_request *rq;
unsigned long flags;
bool result = true;
@ -98,16 +132,31 @@ static bool switch_to_kernel_context(struct intel_engine_cs *engine)
* This should hold true as we can only park the engine after
* retiring the last request, thus all rings should be empty and
* all timelines idle.
*
* For unlocking, there are 2 other parties and the GPU who have a
* stake here.
*
* A new gpu user will be waiting on the engine-pm to start their
* engine_unpark. New waiters are predicated on engine->wakeref.count
* and so intel_wakeref_defer_park() acts like a mutex_unlock of the
* engine->wakeref.
*
* The other party is intel_gt_retire_requests(), which is walking the
* list of active timelines looking for completions. Meanwhile as soon
* as we call __i915_request_queue(), the GPU may complete our request.
* Ergo, if we put ourselves on the timelines.active_list
* (se intel_timeline_enter()) before we increment the
* engine->wakeref.count, we may see the request completion and retire
* it causing an undeflow of the engine->wakeref.
*/
flags = __timeline_mark_lock(engine->kernel_context);
flags = __timeline_mark_lock(ce);
GEM_BUG_ON(atomic_read(&ce->timeline->active_count) < 0);
rq = __i915_request_create(engine->kernel_context, GFP_NOWAIT);
rq = __i915_request_create(ce, GFP_NOWAIT);
if (IS_ERR(rq))
/* Context switch failed, hope for the best! Maybe reset? */
goto out_unlock;
intel_timeline_enter(i915_request_timeline(rq));
/* Check again on the next retirement. */
engine->wakeref_serial = engine->serial + 1;
i915_request_add_active_barriers(rq);
@ -116,13 +165,12 @@ static bool switch_to_kernel_context(struct intel_engine_cs *engine)
rq->sched.attr.priority = I915_PRIORITY_BARRIER;
__i915_request_commit(rq);
/* Release our exclusive hold on the engine */
__intel_wakeref_defer_park(&engine->wakeref);
__i915_request_queue(rq, NULL);
/* Expose ourselves to the world */
__queue_and_release_pm(rq, ce->timeline, engine);
result = false;
out_unlock:
__timeline_mark_unlock(engine->kernel_context, flags);
__timeline_mark_unlock(ce, flags);
return result;
}
@ -177,7 +225,8 @@ static int __engine_park(struct intel_wakeref *wf)
engine->execlists.no_priolist = false;
intel_gt_pm_put(engine->gt);
/* While gt calls i915_vma_parked(), we have to break the lock cycle */
intel_gt_pm_put_async(engine->gt);
return 0;
}

10
drivers/gpu/drm/i915/gt/intel_engine_pm.h
View File

@ -31,6 +31,16 @@ static inline void intel_engine_pm_put(struct intel_engine_cs *engine)
intel_wakeref_put(&engine->wakeref);
}
static inline void intel_engine_pm_put_async(struct intel_engine_cs *engine)
{
intel_wakeref_put_async(&engine->wakeref);
}
static inline void intel_engine_pm_flush(struct intel_engine_cs *engine)
{
intel_wakeref_unlock_wait(&engine->wakeref);
}
void intel_engine_init__pm(struct intel_engine_cs *engine);
#endif /* INTEL_ENGINE_PM_H */

8
drivers/gpu/drm/i915/gt/intel_engine_types.h
View File

@ -451,6 +451,14 @@ struct intel_engine_cs {
struct intel_engine_execlists execlists;
/*
* Keep track of completed timelines on this engine for early
* retirement with the goal of quickly enabling powersaving as
* soon as the engine is idle.
*/
struct intel_timeline *retire;
struct work_struct retire_work;
/* status_notifier: list of callbacks for context-switch changes */
struct atomic_notifier_head context_status_notifier;

3
drivers/gpu/drm/i915/gt/intel_gt_pm.c
View File

@ -105,7 +105,6 @@ static int __gt_park(struct intel_wakeref *wf)
static const struct intel_wakeref_ops wf_ops = {
.get = __gt_unpark,
.put = __gt_park,
.flags = INTEL_WAKEREF_PUT_ASYNC,
};
void intel_gt_pm_init_early(struct intel_gt *gt)
@ -272,7 +271,7 @@ void intel_gt_suspend_prepare(struct intel_gt *gt)
static suspend_state_t pm_suspend_target(void)
{
#if IS_ENABLED(CONFIG_PM_SLEEP)
#if IS_ENABLED(CONFIG_SUSPEND) && IS_ENABLED(CONFIG_PM_SLEEP)
return pm_suspend_target_state;
#else
return PM_SUSPEND_TO_IDLE;

5
drivers/gpu/drm/i915/gt/intel_gt_pm.h
View File

@ -32,6 +32,11 @@ static inline void intel_gt_pm_put(struct intel_gt *gt)
intel_wakeref_put(&gt->wakeref);
}
static inline void intel_gt_pm_put_async(struct intel_gt *gt)
{
intel_wakeref_put_async(&gt->wakeref);
}
static inline int intel_gt_pm_wait_for_idle(struct intel_gt *gt)
{
return intel_wakeref_wait_for_idle(&gt->wakeref);

83
drivers/gpu/drm/i915/gt/intel_gt_requests.c
View File

@ -4,6 +4,8 @@
* Copyright © 2019 Intel Corporation
*/
#include <linux/workqueue.h>
#include "i915_drv.h" /* for_each_engine() */
#include "i915_request.h"
#include "intel_gt.h"
@ -29,6 +31,79 @@ static void flush_submission(struct intel_gt *gt)
intel_engine_flush_submission(engine);
}
static void engine_retire(struct work_struct *work)
{
struct intel_engine_cs *engine =
container_of(work, typeof(*engine), retire_work);
struct intel_timeline *tl = xchg(&engine->retire, NULL);
do {
struct intel_timeline *next = xchg(&tl->retire, NULL);
/*
* Our goal here is to retire _idle_ timelines as soon as
* possible (as they are idle, we do not expect userspace
* to be cleaning up anytime soon).
*
* If the timeline is currently locked, either it is being
* retired elsewhere or about to be!
*/
if (mutex_trylock(&tl->mutex)) {
retire_requests(tl);
mutex_unlock(&tl->mutex);
}
intel_timeline_put(tl);
GEM_BUG_ON(!next);
tl = ptr_mask_bits(next, 1);
} while (tl);
}
static bool add_retire(struct intel_engine_cs *engine,
struct intel_timeline *tl)
{
struct intel_timeline *first;
/*
* We open-code a llist here to include the additional tag [BIT(0)]
* so that we know when the timeline is already on a
* retirement queue: either this engine or another.
*
* However, we rely on that a timeline can only be active on a single
* engine at any one time and that add_retire() is called before the
* engine releases the timeline and transferred to another to retire.
*/
if (READ_ONCE(tl->retire)) /* already queued */
return false;
intel_timeline_get(tl);
first = READ_ONCE(engine->retire);
do
tl->retire = ptr_pack_bits(first, 1, 1);
while (!try_cmpxchg(&engine->retire, &first, tl));
return !first;
}
void intel_engine_add_retire(struct intel_engine_cs *engine,
struct intel_timeline *tl)
{
if (add_retire(engine, tl))
schedule_work(&engine->retire_work);
}
void intel_engine_init_retire(struct intel_engine_cs *engine)
{
INIT_WORK(&engine->retire_work, engine_retire);
}
void intel_engine_fini_retire(struct intel_engine_cs *engine)
{
flush_work(&engine->retire_work);
GEM_BUG_ON(engine->retire);
}
long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout)
{
struct intel_gt_timelines *timelines = &gt->timelines;
@ -52,8 +127,8 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout)
}
intel_timeline_get(tl);
GEM_BUG_ON(!tl->active_count);
tl->active_count++; /* pin the list element */
GEM_BUG_ON(!atomic_read(&tl->active_count));
atomic_inc(&tl->active_count); /* pin the list element */
spin_unlock_irqrestore(&timelines->lock, flags);
if (timeout > 0) {
@ -74,7 +149,7 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout)
/* Resume iteration after dropping lock */
list_safe_reset_next(tl, tn, link);
if (!--tl->active_count)
if (atomic_dec_and_test(&tl->active_count))
list_del(&tl->link);
else
active_count += !!rcu_access_pointer(tl->last_request.fence);
@ -83,7 +158,7 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout)
/* Defer the final release to after the spinlock */
if (refcount_dec_and_test(&tl->kref.refcount)) {
GEM_BUG_ON(tl->active_count);
GEM_BUG_ON(atomic_read(&tl->active_count));
list_add(&tl->link, &free);
}
}

7
drivers/gpu/drm/i915/gt/intel_gt_requests.h
View File

@ -7,7 +7,9 @@
#ifndef INTEL_GT_REQUESTS_H
#define INTEL_GT_REQUESTS_H
struct intel_engine_cs;
struct intel_gt;
struct intel_timeline;
long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout);
static inline void intel_gt_retire_requests(struct intel_gt *gt)
@ -15,6 +17,11 @@ static inline void intel_gt_retire_requests(struct intel_gt *gt)
intel_gt_retire_requests_timeout(gt, 0);
}
void intel_engine_init_retire(struct intel_engine_cs *engine);
void intel_engine_add_retire(struct intel_engine_cs *engine,
struct intel_timeline *tl);
void intel_engine_fini_retire(struct intel_engine_cs *engine);
int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout);
void intel_gt_init_requests(struct intel_gt *gt);

50
drivers/gpu/drm/i915/gt/intel_lrc.c
View File

@ -142,6 +142,7 @@
#include "intel_engine_pm.h"
#include "intel_gt.h"
#include "intel_gt_pm.h"
#include "intel_gt_requests.h"
#include "intel_lrc_reg.h"
#include "intel_mocs.h"
#include "intel_reset.h"
@ -1115,9 +1116,17 @@ __execlists_schedule_out(struct i915_request *rq,
* refrain from doing non-trivial work here.
*/
/*
* If we have just completed this context, the engine may now be
* idle and we want to re-enter powersaving.
*/
if (list_is_last(&rq->link, &ce->timeline->requests) &&
i915_request_completed(rq))
intel_engine_add_retire(engine, ce->timeline);
intel_engine_context_out(engine);
execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_OUT);
intel_gt_pm_put(engine->gt);
intel_gt_pm_put_async(engine->gt);
/*
* If this is part of a virtual engine, its next request may
@ -1937,16 +1946,17 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
static void
cancel_port_requests(struct intel_engine_execlists * const execlists)
{
struct i915_request * const *port, *rq;
struct i915_request * const *port;
for (port = execlists->pending; (rq = *port); port++)
execlists_schedule_out(rq);
for (port = execlists->pending; *port; port++)
execlists_schedule_out(*port);
memset(execlists->pending, 0, sizeof(execlists->pending));
for (port = execlists->active; (rq = *port); port++)
execlists_schedule_out(rq);
execlists->active =
memset(execlists->inflight, 0, sizeof(execlists->inflight));
/* Mark the end of active before we overwrite *active */
for (port = xchg(&execlists->active, execlists->pending); *port; port++)
execlists_schedule_out(*port);
WRITE_ONCE(execlists->active,
memset(execlists->inflight, 0, sizeof(execlists->inflight)));
}
static inline void
@ -2099,23 +2109,27 @@ static void process_csb(struct intel_engine_cs *engine)
else
promote = gen8_csb_parse(execlists, buf + 2 * head);
if (promote) {
struct i915_request * const *old = execlists->active;
/* Point active to the new ELSP; prevent overwriting */
WRITE_ONCE(execlists->active, execlists->pending);
set_timeslice(engine);
if (!inject_preempt_hang(execlists))
ring_set_paused(engine, 0);
/* cancel old inflight, prepare for switch */
trace_ports(execlists, "preempted", execlists->active);
while (*execlists->active)
execlists_schedule_out(*execlists->active++);
trace_ports(execlists, "preempted", old);
while (*old)
execlists_schedule_out(*old++);
/* switch pending to inflight */
GEM_BUG_ON(!assert_pending_valid(execlists, "promote"));
execlists->active =
memcpy(execlists->inflight,
execlists->pending,
execlists_num_ports(execlists) *
sizeof(*execlists->pending));
set_timeslice(engine);
WRITE_ONCE(execlists->active,
memcpy(execlists->inflight,
execlists->pending,
execlists_num_ports(execlists) *
sizeof(*execlists->pending)));
WRITE_ONCE(execlists->pending[0], NULL);
} else {

2
drivers/gpu/drm/i915/gt/intel_reset.c
View File

@ -1114,7 +1114,7 @@ int intel_engine_reset(struct intel_engine_cs *engine, const char *msg)
out:
intel_engine_cancel_stop_cs(engine);
reset_finish_engine(engine);
intel_engine_pm_put(engine);
intel_engine_pm_put_async(engine);
return ret;
}

13
drivers/gpu/drm/i915/gt/intel_ring.c
View File

@ -57,9 +57,10 @@ int intel_ring_pin(struct intel_ring *ring)
i915_vma_make_unshrinkable(vma);
GEM_BUG_ON(ring->vaddr);
ring->vaddr = addr;
/* Discard any unused bytes beyond that submitted to hw. */
intel_ring_reset(ring, ring->emit);
ring->vaddr = addr;
return 0;
err_ring:
@ -85,20 +86,14 @@ void intel_ring_unpin(struct intel_ring *ring)
if (!atomic_dec_and_test(&ring->pin_count))
return;
/* Discard any unused bytes beyond that submitted to hw. */
intel_ring_reset(ring, ring->emit);
i915_vma_unset_ggtt_write(vma);
if (i915_vma_is_map_and_fenceable(vma))
i915_vma_unpin_iomap(vma);
else
i915_gem_object_unpin_map(vma->obj);
GEM_BUG_ON(!ring->vaddr);
ring->vaddr = NULL;
i915_vma_unpin(vma);
i915_vma_make_purgeable(vma);
i915_vma_unpin(vma);
}
static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size)

35
drivers/gpu/drm/i915/gt/intel_timeline.c
View File

@ -282,6 +282,7 @@ void intel_timeline_fini(struct intel_timeline *timeline)
{
GEM_BUG_ON(atomic_read(&timeline->pin_count));
GEM_BUG_ON(!list_empty(&timeline->requests));
GEM_BUG_ON(timeline->retire);
if (timeline->hwsp_cacheline)
cacheline_free(timeline->hwsp_cacheline);
@ -339,15 +340,33 @@ void intel_timeline_enter(struct intel_timeline *tl)
struct intel_gt_timelines *timelines = &tl->gt->timelines;
unsigned long flags;
/*
* Pretend we are serialised by the timeline->mutex.
*
* While generally true, there are a few exceptions to the rule
* for the engine->kernel_context being used to manage power
* transitions. As the engine_park may be called from under any
* timeline, it uses the power mutex as a global serialisation
* lock to prevent any other request entering its timeline.
*
* The rule is generally tl->mutex, otherwise engine->wakeref.mutex.
*
* However, intel_gt_retire_request() does not know which engine
* it is retiring along and so cannot partake in the engine-pm
* barrier, and there we use the tl->active_count as a means to
* pin the timeline in the active_list while the locks are dropped.
* Ergo, as that is outside of the engine-pm barrier, we need to
* use atomic to manipulate tl->active_count.
*/
lockdep_assert_held(&tl->mutex);
GEM_BUG_ON(!atomic_read(&tl->pin_count));
if (tl->active_count++)
if (atomic_add_unless(&tl->active_count, 1, 0))
return;
GEM_BUG_ON(!tl->active_count); /* overflow? */
spin_lock_irqsave(&timelines->lock, flags);
list_add(&tl->link, &timelines->active_list);
if (!atomic_fetch_inc(&tl->active_count))
list_add_tail(&tl->link, &timelines->active_list);
spin_unlock_irqrestore(&timelines->lock, flags);
}
@ -356,14 +375,16 @@ void intel_timeline_exit(struct intel_timeline *tl)
struct intel_gt_timelines *timelines = &tl->gt->timelines;
unsigned long flags;
/* See intel_timeline_enter() */
lockdep_assert_held(&tl->mutex);
GEM_BUG_ON(!tl->active_count);
if (--tl->active_count)
GEM_BUG_ON(!atomic_read(&tl->active_count));
if (atomic_add_unless(&tl->active_count, -1, 1))
return;
spin_lock_irqsave(&timelines->lock, flags);
list_del(&tl->link);
if (atomic_dec_and_test(&tl->active_count))
list_del(&tl->link);
spin_unlock_irqrestore(&timelines->lock, flags);
/*

5
drivers/gpu/drm/i915/gt/intel_timeline_types.h
View File

@ -42,7 +42,7 @@ struct intel_timeline {
* from the intel_context caller plus internal atomicity.
*/
atomic_t pin_count;
unsigned int active_count;
atomic_t active_count;
const u32 *hwsp_seqno;
struct i915_vma *hwsp_ggtt;
@ -66,6 +66,9 @@ struct intel_timeline {
*/
struct i915_active_fence last_request;
/** A chain of completed timelines ready for early retirement. */
struct intel_timeline *retire;
/**
* We track the most recent seqno that we wait on in every context so
* that we only have to emit a new await and dependency on a more

7
drivers/gpu/drm/i915/gt/selftest_engine_pm.c
View File

@ -51,11 +51,12 @@ static int live_engine_pm(void *arg)
pr_err("intel_engine_pm_get_if_awake(%s) failed under %s\n",
engine->name, p->name);
else
intel_engine_pm_put(engine);
intel_engine_pm_put(engine);
intel_engine_pm_put_async(engine);
intel_engine_pm_put_async(engine);
p->critical_section_end();
/* engine wakeref is sync (instant) */
intel_engine_pm_flush(engine);
if (intel_engine_pm_is_awake(engine)) {
pr_err("%s is still awake after flushing pm\n",
engine->name);

6
drivers/gpu/drm/i915/gvt/cmd_parser.c
View File

@ -1599,9 +1599,9 @@ static int cmd_handler_mi_op_2f(struct parser_exec_state *s)
if (!(cmd_val(s, 0) & (1 << 22)))
return ret;
/* check if QWORD */
if (DWORD_FIELD(0, 20, 19) == 1)
valid_len += 8;
/* check inline data */
if (cmd_val(s, 0) & BIT(18))
valid_len = CMD_LEN(9);
ret = gvt_check_valid_cmd_length(cmd_length(s),
valid_len);
if (ret)

5
drivers/gpu/drm/i915/gvt/handlers.c
View File

@ -460,6 +460,7 @@ static int pipeconf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
static i915_reg_t force_nonpriv_white_list[] = {
GEN9_CS_DEBUG_MODE1, //_MMIO(0x20ec)
GEN9_CTX_PREEMPT_REG,//_MMIO(0x2248)
PS_INVOCATION_COUNT,//_MMIO(0x2348)
GEN8_CS_CHICKEN1,//_MMIO(0x2580)
_MMIO(0x2690),
_MMIO(0x2694),
@ -508,7 +509,7 @@ static inline bool in_whitelist(unsigned int reg)
static int force_nonpriv_write(struct intel_vgpu *vgpu,
unsigned int offset, void *p_data, unsigned int bytes)
{
u32 reg_nonpriv = *(u32 *)p_data;
u32 reg_nonpriv = (*(u32 *)p_data) & REG_GENMASK(25, 2);
int ring_id = intel_gvt_render_mmio_to_ring_id(vgpu->gvt, offset);
u32 ring_base;
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
@ -528,7 +529,7 @@ static int force_nonpriv_write(struct intel_vgpu *vgpu,
bytes);
} else
gvt_err("vgpu(%d) Invalid FORCE_NONPRIV write %x at offset %x\n",
vgpu->id, reg_nonpriv, offset);
vgpu->id, *(u32 *)p_data, offset);
return 0;
}

5
drivers/gpu/drm/i915/i915_active.c
View File

@ -672,12 +672,13 @@ void i915_active_acquire_barrier(struct i915_active *ref)
* populated by i915_request_add_active_barriers() to point to the
* request that will eventually release them.
*/
spin_lock_irqsave_nested(&ref->tree_lock, flags, SINGLE_DEPTH_NESTING);
llist_for_each_safe(pos, next, take_preallocated_barriers(ref)) {
struct active_node *node = barrier_from_ll(pos);
struct intel_engine_cs *engine = barrier_to_engine(node);
struct rb_node **p, *parent;
spin_lock_irqsave_nested(&ref->tree_lock, flags,
SINGLE_DEPTH_NESTING);
parent = NULL;
p = &ref->tree.rb_node;
while (*p) {
@ -693,12 +694,12 @@ void i915_active_acquire_barrier(struct i915_active *ref)
}
rb_link_node(&node->node, parent, p);
rb_insert_color(&node->node, &ref->tree);
spin_unlock_irqrestore(&ref->tree_lock, flags);
GEM_BUG_ON(!intel_engine_pm_is_awake(engine));
llist_add(barrier_to_ll(node), &engine->barrier_tasks);
intel_engine_pm_put(engine);
}
spin_unlock_irqrestore(&ref->tree_lock, flags);
}
void i915_request_add_active_barriers(struct i915_request *rq)

6
drivers/gpu/drm/i915/i915_pmu.c
View File

@ -190,7 +190,7 @@ static u64 get_rc6(struct intel_gt *gt)
val = 0;
if (intel_gt_pm_get_if_awake(gt)) {
val = __get_rc6(gt);
intel_gt_pm_put(gt);
intel_gt_pm_put_async(gt);
}
spin_lock_irqsave(&pmu->lock, flags);
@ -343,7 +343,7 @@ engines_sample(struct intel_gt *gt, unsigned int period_ns)
skip:
spin_unlock_irqrestore(&engine->uncore->lock, flags);
intel_engine_pm_put(engine);
intel_engine_pm_put_async(engine);
}
}
@ -368,7 +368,7 @@ frequency_sample(struct intel_gt *gt, unsigned int period_ns)
if (intel_gt_pm_get_if_awake(gt)) {
val = intel_uncore_read_notrace(uncore, GEN6_RPSTAT1);
val = intel_get_cagf(rps, val);
intel_gt_pm_put(gt);
intel_gt_pm_put_async(gt);
}
add_sample_mult(&pmu->sample[__I915_SAMPLE_FREQ_ACT],

7
drivers/gpu/drm/i915/i915_query.c
View File

@ -103,15 +103,18 @@ query_engine_info(struct drm_i915_private *i915,
struct drm_i915_engine_info __user *info_ptr;
struct drm_i915_query_engine_info query;
struct drm_i915_engine_info info = { };
unsigned int num_uabi_engines = 0;
struct intel_engine_cs *engine;
int len, ret;
if (query_item->flags)
return -EINVAL;
for_each_uabi_engine(engine, i915)
num_uabi_engines++;
len = sizeof(struct drm_i915_query_engine_info) +
RUNTIME_INFO(i915)->num_engines *
sizeof(struct drm_i915_engine_info);
num_uabi_engines * sizeof(struct drm_i915_engine_info);
ret = copy_query_item(&query, sizeof(query), len, query_item);
if (ret != 0)

21
drivers/gpu/drm/i915/intel_wakeref.c
View File

@ -54,7 +54,8 @@ int __intel_wakeref_get_first(struct intel_wakeref *wf)
static void ____intel_wakeref_put_last(struct intel_wakeref *wf)
{
if (!atomic_dec_and_test(&wf->count))
INTEL_WAKEREF_BUG_ON(atomic_read(&wf->count) <= 0);
if (unlikely(!atomic_dec_and_test(&wf->count)))
goto unlock;
/* ops->put() must reschedule its own release on error/deferral */
@ -67,13 +68,12 @@ static void ____intel_wakeref_put_last(struct intel_wakeref *wf)
mutex_unlock(&wf->mutex);
}
void __intel_wakeref_put_last(struct intel_wakeref *wf)
void __intel_wakeref_put_last(struct intel_wakeref *wf, unsigned long flags)
{
INTEL_WAKEREF_BUG_ON(work_pending(&wf->work));
/* Assume we are not in process context and so cannot sleep. */
if (wf->ops->flags & INTEL_WAKEREF_PUT_ASYNC ||
!mutex_trylock(&wf->mutex)) {
if (flags & INTEL_WAKEREF_PUT_ASYNC || !mutex_trylock(&wf->mutex)) {
schedule_work(&wf->work);
return;
}
@ -109,8 +109,17 @@ void __intel_wakeref_init(struct intel_wakeref *wf,
int intel_wakeref_wait_for_idle(struct intel_wakeref *wf)
{
return wait_var_event_killable(&wf->wakeref,
!intel_wakeref_is_active(wf));
int err;
might_sleep();
err = wait_var_event_killable(&wf->wakeref,
!intel_wakeref_is_active(wf));
if (err)
return err;
intel_wakeref_unlock_wait(wf);
return 0;
}
static void wakeref_auto_timeout(struct timer_list *t)

45
drivers/gpu/drm/i915/intel_wakeref.h
View File

@ -9,6 +9,7 @@
#include <linux/atomic.h>
#include <linux/bits.h>
#include <linux/lockdep.h>
#include <linux/mutex.h>
#include <linux/refcount.h>
#include <linux/stackdepot.h>
@ -29,9 +30,6 @@ typedef depot_stack_handle_t intel_wakeref_t;
struct intel_wakeref_ops {
int (*get)(struct intel_wakeref *wf);
int (*put)(struct intel_wakeref *wf);
unsigned long flags;
#define INTEL_WAKEREF_PUT_ASYNC BIT(0)
};
struct intel_wakeref {
@ -57,7 +55,7 @@ void __intel_wakeref_init(struct intel_wakeref *wf,
} while (0)
int __intel_wakeref_get_first(struct intel_wakeref *wf);
void __intel_wakeref_put_last(struct intel_wakeref *wf);
void __intel_wakeref_put_last(struct intel_wakeref *wf, unsigned long flags);
/**
* intel_wakeref_get: Acquire the wakeref
@ -100,10 +98,9 @@ intel_wakeref_get_if_active(struct intel_wakeref *wf)
}
/**
* intel_wakeref_put: Release the wakeref
* @i915: the drm_i915_private device
* intel_wakeref_put_flags: Release the wakeref
* @wf: the wakeref
* @fn: callback for releasing the wakeref, called only on final release.
* @flags: control flags
*
* Release our hold on the wakeref. When there are no more users,
* the runtime pm wakeref will be released after the @fn callback is called
@ -116,11 +113,25 @@ intel_wakeref_get_if_active(struct intel_wakeref *wf)
* code otherwise.
*/
static inline void
intel_wakeref_put(struct intel_wakeref *wf)
__intel_wakeref_put(struct intel_wakeref *wf, unsigned long flags)
#define INTEL_WAKEREF_PUT_ASYNC BIT(0)
{
INTEL_WAKEREF_BUG_ON(atomic_read(&wf->count) <= 0);
if (unlikely(!atomic_add_unless(&wf->count, -1, 1)))
__intel_wakeref_put_last(wf);
__intel_wakeref_put_last(wf, flags);
}
static inline void
intel_wakeref_put(struct intel_wakeref *wf)
{
might_sleep();
__intel_wakeref_put(wf, 0);
}
static inline void
intel_wakeref_put_async(struct intel_wakeref *wf)
{
__intel_wakeref_put(wf, INTEL_WAKEREF_PUT_ASYNC);
}
/**
@ -151,6 +162,21 @@ intel_wakeref_unlock(struct intel_wakeref *wf)
mutex_unlock(&wf->mutex);
}
/**
* intel_wakeref_unlock_wait: Wait until the active callback is complete
* @wf: the wakeref
*
* Waits for the active callback (under the @wf->mutex or another CPU) is
* complete.
*/
static inline void
intel_wakeref_unlock_wait(struct intel_wakeref *wf)
{
mutex_lock(&wf->mutex);
mutex_unlock(&wf->mutex);
flush_work(&wf->work);
}
/**
* intel_wakeref_is_active: Query whether the wakeref is currently held
* @wf: the wakeref
@ -170,6 +196,7 @@ intel_wakeref_is_active(const struct intel_wakeref *wf)
static inline void
__intel_wakeref_defer_park(struct intel_wakeref *wf)
{
lockdep_assert_held(&wf->mutex);
INTEL_WAKEREF_BUG_ON(atomic_read(&wf->count));
atomic_set_release(&wf->count, 1);
}

36
drivers/gpu/drm/mgag200/mgag200_drv.c
View File

@ -30,6 +30,8 @@ module_param_named(modeset, mgag200_modeset, int, 0400);
static struct drm_driver driver;
static const struct pci_device_id pciidlist[] = {
{ PCI_VENDOR_ID_MATROX, 0x522, PCI_VENDOR_ID_SUN, 0x4852, 0, 0,
G200_SE_A | MGAG200_FLAG_HW_BUG_NO_STARTADD},
{ PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A },
{ PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
{ PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
@ -60,6 +62,35 @@ static void mga_pci_remove(struct pci_dev *pdev)
DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
static bool mgag200_pin_bo_at_0(const struct mga_device *mdev)
{
return mdev->flags & MGAG200_FLAG_HW_BUG_NO_STARTADD;
}
int mgag200_driver_dumb_create(struct drm_file *file,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
struct mga_device *mdev = dev->dev_private;
unsigned long pg_align;
if (WARN_ONCE(!dev->vram_mm, "VRAM MM not initialized"))
return -EINVAL;
pg_align = 0ul;
/*
* Aligning scanout buffers to the size of the video ram forces
* placement at offset 0. Works around a bug where HW does not
* respect 'startadd' field.
*/
if (mgag200_pin_bo_at_0(mdev))
pg_align = PFN_UP(mdev->mc.vram_size);
return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev,
pg_align, false, args);
}
static struct drm_driver driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET,
.load = mgag200_driver_load,
@ -71,7 +102,10 @@ static struct drm_driver driver = {
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
DRM_GEM_VRAM_DRIVER
.debugfs_init = drm_vram_mm_debugfs_init,
.dumb_create = mgag200_driver_dumb_create,
.dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset,
.gem_prime_mmap = drm_gem_prime_mmap,
};
static struct pci_driver mgag200_pci_driver = {

18
drivers/gpu/drm/mgag200/mgag200_drv.h
View File

@ -150,6 +150,12 @@ enum mga_type {
G200_EW3,
};
/* HW does not handle 'startadd' field correct. */
#define MGAG200_FLAG_HW_BUG_NO_STARTADD (1ul << 8)
#define MGAG200_TYPE_MASK (0x000000ff)
#define MGAG200_FLAG_MASK (0x00ffff00)
#define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)
struct mga_device {
@ -181,6 +187,18 @@ struct mga_device {
u32 unique_rev_id;
};
static inline enum mga_type
mgag200_type_from_driver_data(kernel_ulong_t driver_data)
{
return (enum mga_type)(driver_data & MGAG200_TYPE_MASK);
}
static inline unsigned long
mgag200_flags_from_driver_data(kernel_ulong_t driver_data)
{
return driver_data & MGAG200_FLAG_MASK;
}
/* mgag200_mode.c */
int mgag200_modeset_init(struct mga_device *mdev);
void mgag200_modeset_fini(struct mga_device *mdev);

3
drivers/gpu/drm/mgag200/mgag200_main.c
View File

@ -94,7 +94,8 @@ static int mgag200_device_init(struct drm_device *dev,
struct mga_device *mdev = dev->dev_private;
int ret, option;
mdev->type = flags;
mdev->flags = mgag200_flags_from_driver_data(flags);
mdev->type = mgag200_type_from_driver_data(flags);
/* Hardcode the number of CRTCs to 1 */
mdev->num_crtc = 1;

1
drivers/gpu/drm/msm/Kconfig
View File

@ -7,6 +7,7 @@ config DRM_MSM
depends on OF && COMMON_CLK
depends on MMU
depends on INTERCONNECT || !INTERCONNECT
depends on QCOM_OCMEM || QCOM_OCMEM=n
select QCOM_MDT_LOADER if ARCH_QCOM
select REGULATOR
select DRM_KMS_HELPER

28
drivers/gpu/drm/msm/adreno/a3xx_gpu.c
View File

@ -6,10 +6,6 @@
* Copyright (c) 2014 The Linux Foundation. All rights reserved.
*/
#ifdef CONFIG_MSM_OCMEM
# include <mach/ocmem.h>
#endif
#include "a3xx_gpu.h"
#define A3XX_INT0_MASK \
@ -195,9 +191,9 @@ static int a3xx_hw_init(struct msm_gpu *gpu)
gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x00000000);
/* Set the OCMEM base address for A330, etc */
if (a3xx_gpu->ocmem_hdl) {
if (a3xx_gpu->ocmem.hdl) {
gpu_write(gpu, REG_A3XX_RB_GMEM_BASE_ADDR,
(unsigned int)(a3xx_gpu->ocmem_base >> 14));
(unsigned int)(a3xx_gpu->ocmem.base >> 14));
}
/* Turn on performance counters: */
@ -318,10 +314,7 @@ static void a3xx_destroy(struct msm_gpu *gpu)
adreno_gpu_cleanup(adreno_gpu);
#ifdef CONFIG_MSM_OCMEM
if (a3xx_gpu->ocmem_base)
ocmem_free(OCMEM_GRAPHICS, a3xx_gpu->ocmem_hdl);
#endif
adreno_gpu_ocmem_cleanup(&a3xx_gpu->ocmem);
kfree(a3xx_gpu);
}
@ -494,17 +487,10 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
/* if needed, allocate gmem: */
if (adreno_is_a330(adreno_gpu)) {
#ifdef CONFIG_MSM_OCMEM
/* TODO this is different/missing upstream: */
struct ocmem_buf *ocmem_hdl =
ocmem_allocate(OCMEM_GRAPHICS, adreno_gpu->gmem);
a3xx_gpu->ocmem_hdl = ocmem_hdl;
a3xx_gpu->ocmem_base = ocmem_hdl->addr;
adreno_gpu->gmem = ocmem_hdl->len;
DBG("using %dK of OCMEM at 0x%08x", adreno_gpu->gmem / 1024,
a3xx_gpu->ocmem_base);
#endif
ret = adreno_gpu_ocmem_init(&adreno_gpu->base.pdev->dev,
adreno_gpu, &a3xx_gpu->ocmem);
if (ret)
goto fail;
}
if (!gpu->aspace) {

3
drivers/gpu/drm/msm/adreno/a3xx_gpu.h
View File

@ -19,8 +19,7 @@ struct a3xx_gpu {
struct adreno_gpu base;
/* if OCMEM is used for GMEM: */
uint32_t ocmem_base;
void *ocmem_hdl;
struct adreno_ocmem ocmem;
};
#define to_a3xx_gpu(x) container_of(x, struct a3xx_gpu, base)

25
drivers/gpu/drm/msm/adreno/a4xx_gpu.c
View File

@ -2,9 +2,6 @@
/* Copyright (c) 2014 The Linux Foundation. All rights reserved.
*/
#include "a4xx_gpu.h"
#ifdef CONFIG_MSM_OCMEM
# include <soc/qcom/ocmem.h>
#endif
#define A4XX_INT0_MASK \
(A4XX_INT0_RBBM_AHB_ERROR | \
@ -188,7 +185,7 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
(1 << 30) | 0xFFFF);
gpu_write(gpu, REG_A4XX_RB_GMEM_BASE_ADDR,
(unsigned int)(a4xx_gpu->ocmem_base >> 14));
(unsigned int)(a4xx_gpu->ocmem.base >> 14));
/* Turn on performance counters: */
gpu_write(gpu, REG_A4XX_RBBM_PERFCTR_CTL, 0x01);
@ -318,10 +315,7 @@ static void a4xx_destroy(struct msm_gpu *gpu)
adreno_gpu_cleanup(adreno_gpu);
#ifdef CONFIG_MSM_OCMEM
if (a4xx_gpu->ocmem_base)
ocmem_free(OCMEM_GRAPHICS, a4xx_gpu->ocmem_hdl);
#endif
adreno_gpu_ocmem_cleanup(&a4xx_gpu->ocmem);
kfree(a4xx_gpu);
}
@ -578,17 +572,10 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
/* if needed, allocate gmem: */
if (adreno_is_a4xx(adreno_gpu)) {
#ifdef CONFIG_MSM_OCMEM
/* TODO this is different/missing upstream: */
struct ocmem_buf *ocmem_hdl =
ocmem_allocate(OCMEM_GRAPHICS, adreno_gpu->gmem);
a4xx_gpu->ocmem_hdl = ocmem_hdl;
a4xx_gpu->ocmem_base = ocmem_hdl->addr;
adreno_gpu->gmem = ocmem_hdl->len;
DBG("using %dK of OCMEM at 0x%08x", adreno_gpu->gmem / 1024,
a4xx_gpu->ocmem_base);
#endif
ret = adreno_gpu_ocmem_init(dev->dev, adreno_gpu,
&a4xx_gpu->ocmem);
if (ret)
goto fail;
}
if (!gpu->aspace) {

3
drivers/gpu/drm/msm/adreno/a4xx_gpu.h
View File

@ -16,8 +16,7 @@ struct a4xx_gpu {
struct adreno_gpu base;
/* if OCMEM is used for GMEM: */
uint32_t ocmem_base;
void *ocmem_hdl;
struct adreno_ocmem ocmem;
};
#define to_a4xx_gpu(x) container_of(x, struct a4xx_gpu, base)

79
drivers/gpu/drm/msm/adreno/a5xx_gpu.c
View File

@ -353,6 +353,9 @@ static int a5xx_me_init(struct msm_gpu *gpu)
* 2D mode 3 draw
*/
OUT_RING(ring, 0x0000000B);
} else if (adreno_is_a510(adreno_gpu)) {
/* Workaround for token and syncs */
OUT_RING(ring, 0x00000001);
} else {
/* No workarounds enabled */
OUT_RING(ring, 0x00000000);
@ -568,15 +571,24 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
0x00100000 + adreno_gpu->gmem - 1);
gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MAX_HI, 0x00000000);
gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x40);
if (adreno_is_a530(adreno_gpu))
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x40);
if (adreno_is_a540(adreno_gpu))
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x400);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x80000060);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x40201B16);
gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL, (0x400 << 11 | 0x300 << 22));
if (adreno_is_a510(adreno_gpu)) {
gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x20);
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x20);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x40000030);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x20100D0A);
gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL,
(0x200 << 11 | 0x200 << 22));
} else {
gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x40);
if (adreno_is_a530(adreno_gpu))
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x40);
if (adreno_is_a540(adreno_gpu))
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x400);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x80000060);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x40201B16);
gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL,
(0x400 << 11 | 0x300 << 22));
}
if (adreno_gpu->info->quirks & ADRENO_QUIRK_TWO_PASS_USE_WFI)
gpu_rmw(gpu, REG_A5XX_PC_DBG_ECO_CNTL, 0, (1 << 8));
@ -589,6 +601,19 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
/* Enable ME/PFP split notification */
gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL1, 0xA6FFFFFF);
/*
* In A5x, CCU can send context_done event of a particular context to
* UCHE which ultimately reaches CP even when there is valid
* transaction of that context inside CCU. This can let CP to program
* config registers, which will make the "valid transaction" inside
* CCU to be interpreted differently. This can cause gpu fault. This
* bug is fixed in latest A510 revision. To enable this bug fix -
* bit[11] of RB_DBG_ECO_CNTL need to be set to 0, default is 1
* (disable). For older A510 version this bit is unused.
*/
if (adreno_is_a510(adreno_gpu))
gpu_rmw(gpu, REG_A5XX_RB_DBG_ECO_CNTL, (1 << 11), 0);
/* Enable HWCG */
a5xx_set_hwcg(gpu, true);
@ -635,7 +660,7 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
/* UCHE */
gpu_write(gpu, REG_A5XX_CP_PROTECT(16), ADRENO_PROTECT_RW(0xE80, 16));
if (adreno_is_a530(adreno_gpu))
if (adreno_is_a530(adreno_gpu) || adreno_is_a510(adreno_gpu))
gpu_write(gpu, REG_A5XX_CP_PROTECT(17),
ADRENO_PROTECT_RW(0x10000, 0x8000));
@ -679,7 +704,8 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
a5xx_preempt_hw_init(gpu);
a5xx_gpmu_ucode_init(gpu);
if (!adreno_is_a510(adreno_gpu))
a5xx_gpmu_ucode_init(gpu);
ret = a5xx_ucode_init(gpu);
if (ret)
@ -712,7 +738,8 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
}
/*
* Try to load a zap shader into the secure world. If successful
* If the chip that we are using does support loading one, then
* try to load a zap shader into the secure world. If successful
* we can use the CP to switch out of secure mode. If not then we
* have no resource but to try to switch ourselves out manually. If we
* guessed wrong then access to the RBBM_SECVID_TRUST_CNTL register will
@ -1066,6 +1093,7 @@ static void a5xx_dump(struct msm_gpu *gpu)
static int a5xx_pm_resume(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
int ret;
/* Turn on the core power */
@ -1073,6 +1101,15 @@ static int a5xx_pm_resume(struct msm_gpu *gpu)
if (ret)
return ret;
if (adreno_is_a510(adreno_gpu)) {
/* Halt the sp_input_clk at HM level */
gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0x00000055);
a5xx_set_hwcg(gpu, true);
/* Turn on sp_input_clk at HM level */
gpu_rmw(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0xff, 0);
return 0;
}
/* Turn the RBCCU domain first to limit the chances of voltage droop */
gpu_write(gpu, REG_A5XX_GPMU_RBCCU_POWER_CNTL, 0x778000);
@ -1101,9 +1138,17 @@ static int a5xx_pm_resume(struct msm_gpu *gpu)
static int a5xx_pm_suspend(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
u32 mask = 0xf;
/* A510 has 3 XIN ports in VBIF */
if (adreno_is_a510(adreno_gpu))
mask = 0x7;
/* Clear the VBIF pipe before shutting down */
gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, 0xF);
spin_until((gpu_read(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL1) & 0xF) == 0xF);
gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, mask);
spin_until((gpu_read(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL1) &
mask) == mask);
gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, 0);
@ -1289,7 +1334,7 @@ static void a5xx_gpu_state_destroy(struct kref *kref)
kfree(a5xx_state);
}
int a5xx_gpu_state_put(struct msm_gpu_state *state)
static int a5xx_gpu_state_put(struct msm_gpu_state *state)
{
if (IS_ERR_OR_NULL(state))
return 1;
@ -1299,8 +1344,8 @@ int a5xx_gpu_state_put(struct msm_gpu_state *state)
#if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP)
void a5xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
struct drm_printer *p)
static void a5xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
struct drm_printer *p)
{
int i, j;
u32 pos = 0;

7
drivers/gpu/drm/msm/adreno/a5xx_power.c
View File

@ -297,6 +297,10 @@ int a5xx_power_init(struct msm_gpu *gpu)
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
int ret;
/* Not all A5xx chips have a GPMU */
if (adreno_is_a510(adreno_gpu))
return 0;
/* Set up the limits management */
if (adreno_is_a530(adreno_gpu))
a530_lm_setup(gpu);
@ -326,6 +330,9 @@ void a5xx_gpmu_ucode_init(struct msm_gpu *gpu)
unsigned int *data, *ptr, *cmds;
unsigned int cmds_size;
if (adreno_is_a510(adreno_gpu))
return;
if (a5xx_gpu->gpmu_bo)
return;

15
drivers/gpu/drm/msm/adreno/adreno_device.c
View File

@ -114,6 +114,21 @@ static const struct adreno_info gpulist[] = {
.gmem = (SZ_1M + SZ_512K),
.inactive_period = DRM_MSM_INACTIVE_PERIOD,
.init = a4xx_gpu_init,
}, {
.rev = ADRENO_REV(5, 1, 0, ANY_ID),
.revn = 510,
.name = "A510",
.fw = {
[ADRENO_FW_PM4] = "a530_pm4.fw",
[ADRENO_FW_PFP] = "a530_pfp.fw",
},
.gmem = SZ_256K,
/*
* Increase inactive period to 250 to avoid bouncing
* the GDSC which appears to make it grumpy
*/
.inactive_period = 250,
.init = a5xx_gpu_init,
}, {
.rev = ADRENO_REV(5, 3, 0, 2),
.revn = 530,

40
drivers/gpu/drm/msm/adreno/adreno_gpu.c
View File

@ -14,6 +14,7 @@
#include <linux/pm_opp.h>
#include <linux/slab.h>
#include <linux/soc/qcom/mdt_loader.h>
#include <soc/qcom/ocmem.h>
#include "adreno_gpu.h"
#include "msm_gem.h"
#include "msm_mmu.h"
@ -893,6 +894,45 @@ static int adreno_get_pwrlevels(struct device *dev,
return 0;
}
int adreno_gpu_ocmem_init(struct device *dev, struct adreno_gpu *adreno_gpu,
struct adreno_ocmem *adreno_ocmem)
{
struct ocmem_buf *ocmem_hdl;
struct ocmem *ocmem;
ocmem = of_get_ocmem(dev);
if (IS_ERR(ocmem)) {
if (PTR_ERR(ocmem) == -ENODEV) {
/*
* Return success since either the ocmem property was
* not specified in device tree, or ocmem support is
* not compiled into the kernel.
*/
return 0;
}
return PTR_ERR(ocmem);
}
ocmem_hdl = ocmem_allocate(ocmem, OCMEM_GRAPHICS, adreno_gpu->gmem);
if (IS_ERR(ocmem_hdl))
return PTR_ERR(ocmem_hdl);
adreno_ocmem->ocmem = ocmem;
adreno_ocmem->base = ocmem_hdl->addr;
adreno_ocmem->hdl = ocmem_hdl;
adreno_gpu->gmem = ocmem_hdl->len;
return 0;
}
void adreno_gpu_ocmem_cleanup(struct adreno_ocmem *adreno_ocmem)
{
if (adreno_ocmem && adreno_ocmem->base)
ocmem_free(adreno_ocmem->ocmem, OCMEM_GRAPHICS,
adreno_ocmem->hdl);
}
int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
struct adreno_gpu *adreno_gpu,
const struct adreno_gpu_funcs *funcs, int nr_rings)

15
drivers/gpu/drm/msm/adreno/adreno_gpu.h
View File

@ -126,6 +126,12 @@ struct adreno_gpu {
};
#define to_adreno_gpu(x) container_of(x, struct adreno_gpu, base)
struct adreno_ocmem {
struct ocmem *ocmem;
unsigned long base;
void *hdl;
};
/* platform config data (ie. from DT, or pdata) */
struct adreno_platform_config {
struct adreno_rev rev;
@ -206,6 +212,11 @@ static inline int adreno_is_a430(struct adreno_gpu *gpu)
return gpu->revn == 430;
}
static inline int adreno_is_a510(struct adreno_gpu *gpu)
{
return gpu->revn == 510;
}
static inline int adreno_is_a530(struct adreno_gpu *gpu)
{
return gpu->revn == 530;
@ -236,6 +247,10 @@ void adreno_dump(struct msm_gpu *gpu);
void adreno_wait_ring(struct msm_ringbuffer *ring, uint32_t ndwords);
struct msm_ringbuffer *adreno_active_ring(struct msm_gpu *gpu);
int adreno_gpu_ocmem_init(struct device *dev, struct adreno_gpu *adreno_gpu,
struct adreno_ocmem *ocmem);
void adreno_gpu_ocmem_cleanup(struct adreno_ocmem *ocmem);
int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
struct adreno_gpu *gpu, const struct adreno_gpu_funcs *funcs,
int nr_rings);

43
drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c
View File

@ -55,8 +55,7 @@ static void dpu_core_irq_callback_handler(void *arg, int irq_idx)
int dpu_core_irq_idx_lookup(struct dpu_kms *dpu_kms,
enum dpu_intr_type intr_type, u32 instance_idx)
{
if (!dpu_kms || !dpu_kms->hw_intr ||
!dpu_kms->hw_intr->ops.irq_idx_lookup)
if (!dpu_kms->hw_intr || !dpu_kms->hw_intr->ops.irq_idx_lookup)
return -EINVAL;
return dpu_kms->hw_intr->ops.irq_idx_lookup(intr_type,
@ -73,7 +72,7 @@ static int _dpu_core_irq_enable(struct dpu_kms *dpu_kms, int irq_idx)
unsigned long irq_flags;
int ret = 0, enable_count;
if (!dpu_kms || !dpu_kms->hw_intr ||
if (!dpu_kms->hw_intr ||
!dpu_kms->irq_obj.enable_counts ||
!dpu_kms->irq_obj.irq_counts) {
DPU_ERROR("invalid params\n");
@ -114,7 +113,7 @@ int dpu_core_irq_enable(struct dpu_kms *dpu_kms, int *irq_idxs, u32 irq_count)
{
int i, ret = 0, counts;
if (!dpu_kms || !irq_idxs || !irq_count) {
if (!irq_idxs || !irq_count) {
DPU_ERROR("invalid params\n");
return -EINVAL;
}
@ -138,7 +137,7 @@ static int _dpu_core_irq_disable(struct dpu_kms *dpu_kms, int irq_idx)
{
int ret = 0, enable_count;
if (!dpu_kms || !dpu_kms->hw_intr || !dpu_kms->irq_obj.enable_counts) {
if (!dpu_kms->hw_intr || !dpu_kms->irq_obj.enable_counts) {
DPU_ERROR("invalid params\n");
return -EINVAL;
}
@ -169,7 +168,7 @@ int dpu_core_irq_disable(struct dpu_kms *dpu_kms, int *irq_idxs, u32 irq_count)
{
int i, ret = 0, counts;
if (!dpu_kms || !irq_idxs || !irq_count) {
if (!irq_idxs || !irq_count) {
DPU_ERROR("invalid params\n");
return -EINVAL;
}
@ -186,7 +185,7 @@ int dpu_core_irq_disable(struct dpu_kms *dpu_kms, int *irq_idxs, u32 irq_count)
u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx, bool clear)
{
if (!dpu_kms || !dpu_kms->hw_intr ||
if (!dpu_kms->hw_intr ||
!dpu_kms->hw_intr->ops.get_interrupt_status)
return 0;
@ -205,7 +204,7 @@ int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx,
{
unsigned long irq_flags;
if (!dpu_kms || !dpu_kms->irq_obj.irq_cb_tbl) {
if (!dpu_kms->irq_obj.irq_cb_tbl) {
DPU_ERROR("invalid params\n");
return -EINVAL;
}
@ -240,7 +239,7 @@ int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx,
{
unsigned long irq_flags;
if (!dpu_kms || !dpu_kms->irq_obj.irq_cb_tbl) {
if (!dpu_kms->irq_obj.irq_cb_tbl) {
DPU_ERROR("invalid params\n");
return -EINVAL;
}
@ -274,8 +273,7 @@ int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx,
static void dpu_clear_all_irqs(struct dpu_kms *dpu_kms)
{
if (!dpu_kms || !dpu_kms->hw_intr ||
!dpu_kms->hw_intr->ops.clear_all_irqs)
if (!dpu_kms->hw_intr || !dpu_kms->hw_intr->ops.clear_all_irqs)
return;
dpu_kms->hw_intr->ops.clear_all_irqs(dpu_kms->hw_intr);
@ -283,8 +281,7 @@ static void dpu_clear_all_irqs(struct dpu_kms *dpu_kms)
static void dpu_disable_all_irqs(struct dpu_kms *dpu_kms)
{
if (!dpu_kms || !dpu_kms->hw_intr ||
!dpu_kms->hw_intr->ops.disable_all_irqs)
if (!dpu_kms->hw_intr || !dpu_kms->hw_intr->ops.disable_all_irqs)
return;
dpu_kms->hw_intr->ops.disable_all_irqs(dpu_kms->hw_intr);
@ -343,18 +340,8 @@ void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
void dpu_core_irq_preinstall(struct dpu_kms *dpu_kms)
{
struct msm_drm_private *priv;
int i;
if (!dpu_kms->dev) {
DPU_ERROR("invalid drm device\n");
return;
} else if (!dpu_kms->dev->dev_private) {
DPU_ERROR("invalid device private\n");
return;
}
priv = dpu_kms->dev->dev_private;
pm_runtime_get_sync(&dpu_kms->pdev->dev);
dpu_clear_all_irqs(dpu_kms);
dpu_disable_all_irqs(dpu_kms);
@ -379,18 +366,8 @@ void dpu_core_irq_preinstall(struct dpu_kms *dpu_kms)
void dpu_core_irq_uninstall(struct dpu_kms *dpu_kms)
{
struct msm_drm_private *priv;
int i;
if (!dpu_kms->dev) {
DPU_ERROR("invalid drm device\n");
return;
} else if (!dpu_kms->dev->dev_private) {
DPU_ERROR("invalid device private\n");
return;
}
priv = dpu_kms->dev->dev_private;
pm_runtime_get_sync(&dpu_kms->pdev->dev);
for (i = 0; i < dpu_kms->irq_obj.total_irqs; i++)
if (atomic_read(&dpu_kms->irq_obj.enable_counts[i]) ||

21
drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
View File

@ -32,18 +32,7 @@ enum dpu_perf_mode {
static struct dpu_kms *_dpu_crtc_get_kms(struct drm_crtc *crtc)
{
struct msm_drm_private *priv;
if (!crtc->dev || !crtc->dev->dev_private) {
DPU_ERROR("invalid device\n");
return NULL;
}
priv = crtc->dev->dev_private;
if (!priv || !priv->kms) {
DPU_ERROR("invalid kms\n");
return NULL;
}
return to_dpu_kms(priv->kms);
}
@ -116,7 +105,7 @@ int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
}
kms = _dpu_crtc_get_kms(crtc);
if (!kms || !kms->catalog) {
if (!kms->catalog) {
DPU_ERROR("invalid parameters\n");
return 0;
}
@ -215,7 +204,6 @@ static int _dpu_core_perf_crtc_update_bus(struct dpu_kms *kms,
void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
{
struct dpu_crtc *dpu_crtc;
struct dpu_crtc_state *dpu_cstate;
struct dpu_kms *kms;
if (!crtc) {
@ -224,13 +212,12 @@ void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
}
kms = _dpu_crtc_get_kms(crtc);
if (!kms || !kms->catalog) {
if (!kms->catalog) {
DPU_ERROR("invalid kms\n");
return;
}
dpu_crtc = to_dpu_crtc(crtc);
dpu_cstate = to_dpu_crtc_state(crtc->state);
if (atomic_dec_return(&kms->bandwidth_ref) > 0)
return;
@ -287,7 +274,6 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
u64 clk_rate = 0;
struct dpu_crtc *dpu_crtc;
struct dpu_crtc_state *dpu_cstate;
struct msm_drm_private *priv;
struct dpu_kms *kms;
int ret;
@ -297,11 +283,10 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
}
kms = _dpu_crtc_get_kms(crtc);
if (!kms || !kms->catalog) {
if (!kms->catalog) {
DPU_ERROR("invalid kms\n");
return -EINVAL;
}
priv = kms->dev->dev_private;
dpu_crtc = to_dpu_crtc(crtc);
dpu_cstate = to_dpu_crtc_state(crtc->state);

20
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
View File

@ -266,11 +266,20 @@ enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc)
{
struct drm_encoder *encoder;
if (!crtc || !crtc->dev) {
if (!crtc) {
DPU_ERROR("invalid crtc\n");
return INTF_MODE_NONE;
}
/*
* TODO: This function is called from dpu debugfs and as part of atomic
* check. When called from debugfs, the crtc->mutex must be held to
* read crtc->state. However reading crtc->state from atomic check isn't
* allowed (unless you have a good reason, a big comment, and a deep
* understanding of how the atomic/modeset locks work (<- and this is
* probably not possible)). So we'll keep the WARN_ON here for now, but
* really we need to figure out a better way to track our operating mode
*/
WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
/* TODO: Returns the first INTF_MODE, could there be multiple values? */
@ -694,7 +703,7 @@ static void dpu_crtc_disable(struct drm_crtc *crtc,
unsigned long flags;
bool release_bandwidth = false;
if (!crtc || !crtc->dev || !crtc->dev->dev_private || !crtc->state) {
if (!crtc || !crtc->state) {
DPU_ERROR("invalid crtc\n");
return;
}
@ -766,7 +775,7 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,
struct msm_drm_private *priv;
bool request_bandwidth;
if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
if (!crtc) {
DPU_ERROR("invalid crtc\n");
return;
}
@ -1288,13 +1297,8 @@ struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
{
struct drm_crtc *crtc = NULL;
struct dpu_crtc *dpu_crtc = NULL;
struct msm_drm_private *priv = NULL;
struct dpu_kms *kms = NULL;
int i;
priv = dev->dev_private;
kms = to_dpu_kms(priv->kms);
dpu_crtc = kzalloc(sizeof(*dpu_crtc), GFP_KERNEL);
if (!dpu_crtc)
return ERR_PTR(-ENOMEM);

39
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
View File

@ -645,11 +645,6 @@ static void _dpu_encoder_update_vsync_source(struct dpu_encoder_virt *dpu_enc,
priv = drm_enc->dev->dev_private;
dpu_kms = to_dpu_kms(priv->kms);
if (!dpu_kms) {
DPU_ERROR("invalid dpu_kms\n");
return;
}
hw_mdptop = dpu_kms->hw_mdp;
if (!hw_mdptop) {
DPU_ERROR("invalid mdptop\n");
@ -735,8 +730,7 @@ static int dpu_encoder_resource_control(struct drm_encoder *drm_enc,
struct msm_drm_private *priv;
bool is_vid_mode = false;
if (!drm_enc || !drm_enc->dev || !drm_enc->dev->dev_private ||
!drm_enc->crtc) {
if (!drm_enc || !drm_enc->dev || !drm_enc->crtc) {
DPU_ERROR("invalid parameters\n");
return -EINVAL;
}
@ -1092,17 +1086,13 @@ static void _dpu_encoder_virt_enable_helper(struct drm_encoder *drm_enc)
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
if (!drm_enc || !drm_enc->dev || !drm_enc->dev->dev_private) {
if (!drm_enc || !drm_enc->dev) {
DPU_ERROR("invalid parameters\n");
return;
}
priv = drm_enc->dev->dev_private;
dpu_kms = to_dpu_kms(priv->kms);
if (!dpu_kms) {
DPU_ERROR("invalid dpu_kms\n");
return;
}
dpu_enc = to_dpu_encoder_virt(drm_enc);
if (!dpu_enc || !dpu_enc->cur_master) {
@ -1184,7 +1174,6 @@ static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc)
struct dpu_encoder_virt *dpu_enc = NULL;
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
struct drm_display_mode *mode;
int i = 0;
if (!drm_enc) {
@ -1193,9 +1182,6 @@ static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc)
} else if (!drm_enc->dev) {
DPU_ERROR("invalid dev\n");
return;
} else if (!drm_enc->dev->dev_private) {
DPU_ERROR("invalid dev_private\n");
return;
}
dpu_enc = to_dpu_encoder_virt(drm_enc);
@ -1204,8 +1190,6 @@ static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc)
mutex_lock(&dpu_enc->enc_lock);
dpu_enc->enabled = false;
mode = &drm_enc->crtc->state->adjusted_mode;
priv = drm_enc->dev->dev_private;
dpu_kms = to_dpu_kms(priv->kms);
@ -1734,8 +1718,7 @@ static void dpu_encoder_vsync_event_handler(struct timer_list *t)
struct msm_drm_private *priv;
struct msm_drm_thread *event_thread;
if (!drm_enc->dev || !drm_enc->dev->dev_private ||
!drm_enc->crtc) {
if (!drm_enc->dev || !drm_enc->crtc) {
DPU_ERROR("invalid parameters\n");
return;
}
@ -1914,8 +1897,6 @@ static int _dpu_encoder_debugfs_status_open(struct inode *inode,
static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
{
struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc);
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
int i;
static const struct file_operations debugfs_status_fops = {
@ -1927,14 +1908,11 @@ static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
char name[DPU_NAME_SIZE];
if (!drm_enc->dev || !drm_enc->dev->dev_private) {
if (!drm_enc->dev) {
DPU_ERROR("invalid encoder or kms\n");
return -EINVAL;
}
priv = drm_enc->dev->dev_private;
dpu_kms = to_dpu_kms(priv->kms);
snprintf(name, DPU_NAME_SIZE, "encoder%u", drm_enc->base.id);
/* create overall sub-directory for the encoder */
@ -2042,9 +2020,8 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc,
enum dpu_intf_type intf_type;
struct dpu_enc_phys_init_params phys_params;
if (!dpu_enc || !dpu_kms) {
DPU_ERROR("invalid arg(s), enc %d kms %d\n",
dpu_enc != 0, dpu_kms != 0);
if (!dpu_enc) {
DPU_ERROR("invalid arg(s), enc %d\n", dpu_enc != 0);
return -EINVAL;
}
@ -2133,14 +2110,12 @@ static void dpu_encoder_frame_done_timeout(struct timer_list *t)
struct dpu_encoder_virt *dpu_enc = from_timer(dpu_enc, t,
frame_done_timer);
struct drm_encoder *drm_enc = &dpu_enc->base;
struct msm_drm_private *priv;
u32 event;
if (!drm_enc->dev || !drm_enc->dev->dev_private) {
if (!drm_enc->dev) {
DPU_ERROR("invalid parameters\n");
return;
}
priv = drm_enc->dev->dev_private;
if (!dpu_enc->frame_busy_mask[0] || !dpu_enc->crtc_frame_event_cb) {
DRM_DEBUG_KMS("id:%u invalid timeout frame_busy_mask=%lu\n",

15
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
View File

@ -124,13 +124,11 @@ static void dpu_encoder_phys_cmd_pp_rd_ptr_irq(void *arg, int irq_idx)
static void dpu_encoder_phys_cmd_ctl_start_irq(void *arg, int irq_idx)
{
struct dpu_encoder_phys *phys_enc = arg;
struct dpu_encoder_phys_cmd *cmd_enc;
if (!phys_enc || !phys_enc->hw_ctl)
return;
DPU_ATRACE_BEGIN("ctl_start_irq");
cmd_enc = to_dpu_encoder_phys_cmd(phys_enc);
atomic_add_unless(&phys_enc->pending_ctlstart_cnt, -1, 0);
@ -316,13 +314,9 @@ static int dpu_encoder_phys_cmd_control_vblank_irq(
static void dpu_encoder_phys_cmd_irq_control(struct dpu_encoder_phys *phys_enc,
bool enable)
{
struct dpu_encoder_phys_cmd *cmd_enc;
if (!phys_enc)
return;
cmd_enc = to_dpu_encoder_phys_cmd(phys_enc);
trace_dpu_enc_phys_cmd_irq_ctrl(DRMID(phys_enc->parent),
phys_enc->hw_pp->idx - PINGPONG_0,
enable, atomic_read(&phys_enc->vblank_refcount));
@ -355,7 +349,6 @@ static void dpu_encoder_phys_cmd_tearcheck_config(
struct drm_display_mode *mode;
bool tc_enable = true;
u32 vsync_hz;
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
if (!phys_enc || !phys_enc->hw_pp) {
@ -373,11 +366,6 @@ static void dpu_encoder_phys_cmd_tearcheck_config(
}
dpu_kms = phys_enc->dpu_kms;
if (!dpu_kms || !dpu_kms->dev || !dpu_kms->dev->dev_private) {
DPU_ERROR("invalid device\n");
return;
}
priv = dpu_kms->dev->dev_private;
/*
* TE default: dsi byte clock calculated base on 70 fps;
@ -650,13 +638,10 @@ static int dpu_encoder_phys_cmd_wait_for_tx_complete(
struct dpu_encoder_phys *phys_enc)
{
int rc;
struct dpu_encoder_phys_cmd *cmd_enc;
if (!phys_enc)
return -EINVAL;
cmd_enc = to_dpu_encoder_phys_cmd(phys_enc);
rc = _dpu_encoder_phys_cmd_wait_for_idle(phys_enc);
if (rc) {
DRM_ERROR("failed wait_for_idle: id:%u ret:%d intf:%d\n",

7
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
View File

@ -374,7 +374,7 @@ static void dpu_encoder_phys_vid_mode_set(
struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
if (!phys_enc || !phys_enc->dpu_kms) {
if (!phys_enc) {
DPU_ERROR("invalid encoder/kms\n");
return;
}
@ -566,16 +566,13 @@ static void dpu_encoder_phys_vid_prepare_for_kickoff(
static void dpu_encoder_phys_vid_disable(struct dpu_encoder_phys *phys_enc)
{
struct msm_drm_private *priv;
unsigned long lock_flags;
int ret;
if (!phys_enc || !phys_enc->parent || !phys_enc->parent->dev ||
!phys_enc->parent->dev->dev_private) {
if (!phys_enc || !phys_enc->parent || !phys_enc->parent->dev) {
DPU_ERROR("invalid encoder/device\n");
return;
}
priv = phys_enc->parent->dev->dev_private;
if (!phys_enc->hw_intf || !phys_enc->hw_ctl) {
DPU_ERROR("invalid hw_intf %d hw_ctl %d\n",

60
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
View File

@ -30,10 +30,6 @@
#define CREATE_TRACE_POINTS
#include "dpu_trace.h"
static const char * const iommu_ports[] = {
"mdp_0",
};
/*
* To enable overall DRM driver logging
* # echo 0x2 > /sys/module/drm/parameters/debug
@ -68,16 +64,14 @@ static int _dpu_danger_signal_status(struct seq_file *s,
bool danger_status)
{
struct dpu_kms *kms = (struct dpu_kms *)s->private;
struct msm_drm_private *priv;
struct dpu_danger_safe_status status;
int i;
if (!kms->dev || !kms->dev->dev_private || !kms->hw_mdp) {
if (!kms->hw_mdp) {
DPU_ERROR("invalid arg(s)\n");
return 0;
}
priv = kms->dev->dev_private;
memset(&status, 0, sizeof(struct dpu_danger_safe_status));
pm_runtime_get_sync(&kms->pdev->dev);
@ -153,13 +147,7 @@ static int _dpu_debugfs_show_regset32(struct seq_file *s, void *data)
return 0;
dev = dpu_kms->dev;
if (!dev)
return 0;
priv = dev->dev_private;
if (!priv)
return 0;
base = dpu_kms->mmio + regset->offset;
/* insert padding spaces, if needed */
@ -280,7 +268,6 @@ static void dpu_kms_prepare_commit(struct msm_kms *kms,
struct drm_atomic_state *state)
{
struct dpu_kms *dpu_kms;
struct msm_drm_private *priv;
struct drm_device *dev;
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
@ -292,10 +279,6 @@ static void dpu_kms_prepare_commit(struct msm_kms *kms,
dpu_kms = to_dpu_kms(kms);
dev = dpu_kms->dev;
if (!dev || !dev->dev_private)
return;
priv = dev->dev_private;
/* Call prepare_commit for all affected encoders */
for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
drm_for_each_encoder_mask(encoder, crtc->dev,
@ -333,7 +316,6 @@ void dpu_kms_encoder_enable(struct drm_encoder *encoder)
if (funcs && funcs->commit)
funcs->commit(encoder);
WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
drm_for_each_crtc(crtc, dev) {
if (!(crtc->state->encoder_mask & drm_encoder_mask(encoder)))
continue;
@ -464,16 +446,6 @@ static void _dpu_kms_drm_obj_destroy(struct dpu_kms *dpu_kms)
struct msm_drm_private *priv;
int i;
if (!dpu_kms) {
DPU_ERROR("invalid dpu_kms\n");
return;
} else if (!dpu_kms->dev) {
DPU_ERROR("invalid dev\n");
return;
} else if (!dpu_kms->dev->dev_private) {
DPU_ERROR("invalid dev_private\n");
return;
}
priv = dpu_kms->dev->dev_private;
for (i = 0; i < priv->num_crtcs; i++)
@ -505,7 +477,6 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret;
int max_crtc_count;
dev = dpu_kms->dev;
priv = dev->dev_private;
catalog = dpu_kms->catalog;
@ -585,8 +556,6 @@ static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms)
int i;
dev = dpu_kms->dev;
if (!dev)
return;
if (dpu_kms->hw_intr)
dpu_hw_intr_destroy(dpu_kms->hw_intr);
@ -725,8 +694,7 @@ static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms)
mmu = dpu_kms->base.aspace->mmu;
mmu->funcs->detach(mmu, (const char **)iommu_ports,
ARRAY_SIZE(iommu_ports));
mmu->funcs->detach(mmu);
msm_gem_address_space_put(dpu_kms->base.aspace);
dpu_kms->base.aspace = NULL;
@ -752,8 +720,7 @@ static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms)
return PTR_ERR(aspace);
}
ret = aspace->mmu->funcs->attach(aspace->mmu, iommu_ports,
ARRAY_SIZE(iommu_ports));
ret = aspace->mmu->funcs->attach(aspace->mmu);
if (ret) {
DPU_ERROR("failed to attach iommu %d\n", ret);
msm_gem_address_space_put(aspace);
@ -803,16 +770,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
dpu_kms = to_dpu_kms(kms);
dev = dpu_kms->dev;
if (!dev) {
DPU_ERROR("invalid device\n");
return rc;
}
priv = dev->dev_private;
if (!priv) {
DPU_ERROR("invalid private data\n");
return rc;
}
atomic_set(&dpu_kms->bandwidth_ref, 0);
@ -974,7 +932,7 @@ struct msm_kms *dpu_kms_init(struct drm_device *dev)
struct dpu_kms *dpu_kms;
int irq;
if (!dev || !dev->dev_private) {
if (!dev) {
DPU_ERROR("drm device node invalid\n");
return ERR_PTR(-EINVAL);
}
@ -1064,11 +1022,6 @@ static int __maybe_unused dpu_runtime_suspend(struct device *dev)
struct dss_module_power *mp = &dpu_kms->mp;
ddev = dpu_kms->dev;
if (!ddev) {
DPU_ERROR("invalid drm_device\n");
return rc;
}
rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
if (rc)
DPU_ERROR("clock disable failed rc:%d\n", rc);
@ -1086,11 +1039,6 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev)
struct dss_module_power *mp = &dpu_kms->mp;
ddev = dpu_kms->dev;
if (!ddev) {
DPU_ERROR("invalid drm_device\n");
return rc;
}
rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true);
if (rc) {
DPU_ERROR("clock enable failed rc:%d\n", rc);

4
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
View File

@ -139,10 +139,6 @@ struct vsync_info {
#define to_dpu_kms(x) container_of(x, struct dpu_kms, base)
/* get struct msm_kms * from drm_device * */
#define ddev_to_msm_kms(D) ((D) && (D)->dev_private ? \
((struct msm_drm_private *)((D)->dev_private))->kms : NULL)
/**
* Debugfs functions - extra helper functions for debugfs support
*

6
drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c
View File

@ -154,10 +154,6 @@ void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms,
u32 ot_lim;
int ret, i;
if (!dpu_kms) {
DPU_ERROR("invalid arguments\n");
return;
}
mdp = dpu_kms->hw_mdp;
for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
@ -214,7 +210,7 @@ void dpu_vbif_set_qos_remap(struct dpu_kms *dpu_kms,
const struct dpu_vbif_qos_tbl *qos_tbl;
int i;
if (!dpu_kms || !params || !dpu_kms->hw_mdp) {
if (!params || !dpu_kms->hw_mdp) {
DPU_ERROR("invalid arguments\n");
return;
}

10
drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
View File

@ -157,10 +157,6 @@ static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate,
}
}
static const char * const iommu_ports[] = {
"mdp_port0_cb0", "mdp_port1_cb0",
};
static void mdp4_destroy(struct msm_kms *kms)
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
@ -172,8 +168,7 @@ static void mdp4_destroy(struct msm_kms *kms)
drm_gem_object_put_unlocked(mdp4_kms->blank_cursor_bo);
if (aspace) {
aspace->mmu->funcs->detach(aspace->mmu,
iommu_ports, ARRAY_SIZE(iommu_ports));
aspace->mmu->funcs->detach(aspace->mmu);
msm_gem_address_space_put(aspace);
}
@ -524,8 +519,7 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
kms->aspace = aspace;
ret = aspace->mmu->funcs->attach(aspace->mmu, iommu_ports,
ARRAY_SIZE(iommu_ports));
ret = aspace->mmu->funcs->attach(aspace->mmu);
if (ret)
goto fail;
} else {

114
drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c
View File

@ -14,7 +14,7 @@ struct mdp5_cfg_handler {
/* mdp5_cfg must be exposed (used in mdp5.xml.h) */
const struct mdp5_cfg_hw *mdp5_cfg = NULL;
const struct mdp5_cfg_hw msm8x74v1_config = {
static const struct mdp5_cfg_hw msm8x74v1_config = {
.name = "msm8x74v1",
.mdp = {
.count = 1,
@ -98,7 +98,7 @@ const struct mdp5_cfg_hw msm8x74v1_config = {
.max_clk = 200000000,
};
const struct mdp5_cfg_hw msm8x74v2_config = {
static const struct mdp5_cfg_hw msm8x74v2_config = {
.name = "msm8x74",
.mdp = {
.count = 1,
@ -180,7 +180,7 @@ const struct mdp5_cfg_hw msm8x74v2_config = {
.max_clk = 200000000,
};
const struct mdp5_cfg_hw apq8084_config = {
static const struct mdp5_cfg_hw apq8084_config = {
.name = "apq8084",
.mdp = {
.count = 1,
@ -275,7 +275,7 @@ const struct mdp5_cfg_hw apq8084_config = {
.max_clk = 320000000,
};
const struct mdp5_cfg_hw msm8x16_config = {
static const struct mdp5_cfg_hw msm8x16_config = {
.name = "msm8x16",
.mdp = {
.count = 1,
@ -342,7 +342,7 @@ const struct mdp5_cfg_hw msm8x16_config = {
.max_clk = 320000000,
};
const struct mdp5_cfg_hw msm8x94_config = {
static const struct mdp5_cfg_hw msm8x94_config = {
.name = "msm8x94",
.mdp = {
.count = 1,
@ -437,7 +437,7 @@ const struct mdp5_cfg_hw msm8x94_config = {
.max_clk = 400000000,
};
const struct mdp5_cfg_hw msm8x96_config = {
static const struct mdp5_cfg_hw msm8x96_config = {
.name = "msm8x96",
.mdp = {
.count = 1,
@ -545,7 +545,104 @@ const struct mdp5_cfg_hw msm8x96_config = {
.max_clk = 412500000,
};
const struct mdp5_cfg_hw msm8917_config = {
const struct mdp5_cfg_hw msm8x76_config = {
.name = "msm8x76",
.mdp = {
.count = 1,
.caps = MDP_CAP_SMP |
MDP_CAP_DSC |
MDP_CAP_SRC_SPLIT |
0,
},
.ctl = {
.count = 3,
.base = { 0x01000, 0x01200, 0x01400 },
.flush_hw_mask = 0xffffffff,
},
.smp = {
.mmb_count = 10,
.mmb_size = 10240,
.clients = {
[SSPP_VIG0] = 1, [SSPP_VIG1] = 9,
[SSPP_DMA0] = 4,
[SSPP_RGB0] = 7, [SSPP_RGB1] = 8,
},
},
.pipe_vig = {
.count = 2,
.base = { 0x04000, 0x06000 },
.caps = MDP_PIPE_CAP_HFLIP |
MDP_PIPE_CAP_VFLIP |
MDP_PIPE_CAP_SCALE |
MDP_PIPE_CAP_CSC |
MDP_PIPE_CAP_DECIMATION |
MDP_PIPE_CAP_SW_PIX_EXT |
0,
},
.pipe_rgb = {
.count = 2,
.base = { 0x14000, 0x16000 },
.caps = MDP_PIPE_CAP_HFLIP |
MDP_PIPE_CAP_VFLIP |
MDP_PIPE_CAP_DECIMATION |
MDP_PIPE_CAP_SW_PIX_EXT |
0,
},
.pipe_dma = {
.count = 1,
.base = { 0x24000 },
.caps = MDP_PIPE_CAP_HFLIP |
MDP_PIPE_CAP_VFLIP |
MDP_PIPE_CAP_SW_PIX_EXT |
0,
},
.pipe_cursor = {
.count = 1,
.base = { 0x440DC },
.caps = MDP_PIPE_CAP_HFLIP |
MDP_PIPE_CAP_VFLIP |
MDP_PIPE_CAP_SW_PIX_EXT |
MDP_PIPE_CAP_CURSOR |
0,
},
.lm = {
.count = 2,
.base = { 0x44000, 0x45000 },
.instances = {
{ .id = 0, .pp = 0, .dspp = 0,
.caps = MDP_LM_CAP_DISPLAY, },
{ .id = 1, .pp = -1, .dspp = -1,
.caps = MDP_LM_CAP_WB },
},
.nb_stages = 8,
.max_width = 2560,
.max_height = 0xFFFF,
},
.dspp = {
.count = 1,
.base = { 0x54000 },
},
.pp = {
.count = 3,
.base = { 0x70000, 0x70800, 0x72000 },
},
.dsc = {
.count = 2,
.base = { 0x80000, 0x80400 },
},
.intf = {
.base = { 0x6a000, 0x6a800, 0x6b000 },
.connect = {
[0] = INTF_DISABLED,
[1] = INTF_DSI,
[2] = INTF_DSI,
},
},
.max_clk = 360000000,
};
static const struct mdp5_cfg_hw msm8917_config = {
.name = "msm8917",
.mdp = {
.count = 1,
@ -630,7 +727,7 @@ const struct mdp5_cfg_hw msm8917_config = {
.max_clk = 320000000,
};
const struct mdp5_cfg_hw msm8998_config = {
static const struct mdp5_cfg_hw msm8998_config = {
.name = "msm8998",
.mdp = {
.count = 1,
@ -745,6 +842,7 @@ static const struct mdp5_cfg_handler cfg_handlers_v1[] = {
{ .revision = 6, .config = { .hw = &msm8x16_config } },
{ .revision = 9, .config = { .hw = &msm8x94_config } },
{ .revision = 7, .config = { .hw = &msm8x96_config } },
{ .revision = 11, .config = { .hw = &msm8x76_config } },
{ .revision = 15, .config = { .hw = &msm8917_config } },
};

3
drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
View File

@ -214,7 +214,6 @@ static void blend_setup(struct drm_crtc *crtc)
struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct drm_plane *plane;
const struct mdp5_cfg_hw *hw_cfg;
struct mdp5_plane_state *pstate, *pstates[STAGE_MAX + 1] = {NULL};
const struct mdp_format *format;
struct mdp5_hw_mixer *mixer = pipeline->mixer;
@ -232,8 +231,6 @@ static void blend_setup(struct drm_crtc *crtc)
u32 val;
#define blender(stage) ((stage) - STAGE0)
hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
/* ctl could be released already when we are shutting down: */

23
drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
View File

@ -19,10 +19,6 @@
#include "msm_mmu.h"
#include "mdp5_kms.h"
static const char *iommu_ports[] = {
"mdp_0",
};
static int mdp5_hw_init(struct msm_kms *kms)
{
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
@ -233,8 +229,7 @@ static void mdp5_kms_destroy(struct msm_kms *kms)
mdp5_pipe_destroy(mdp5_kms->hwpipes[i]);
if (aspace) {
aspace->mmu->funcs->detach(aspace->mmu,
iommu_ports, ARRAY_SIZE(iommu_ports));
aspace->mmu->funcs->detach(aspace->mmu);
msm_gem_address_space_put(aspace);
}
}
@ -314,6 +309,10 @@ int mdp5_disable(struct mdp5_kms *mdp5_kms)
mdp5_kms->enable_count--;
WARN_ON(mdp5_kms->enable_count < 0);
if (mdp5_kms->tbu_rt_clk)
clk_disable_unprepare(mdp5_kms->tbu_rt_clk);
if (mdp5_kms->tbu_clk)
clk_disable_unprepare(mdp5_kms->tbu_clk);
clk_disable_unprepare(mdp5_kms->ahb_clk);
clk_disable_unprepare(mdp5_kms->axi_clk);
clk_disable_unprepare(mdp5_kms->core_clk);
@ -334,6 +333,10 @@ int mdp5_enable(struct mdp5_kms *mdp5_kms)
clk_prepare_enable(mdp5_kms->core_clk);
if (mdp5_kms->lut_clk)
clk_prepare_enable(mdp5_kms->lut_clk);
if (mdp5_kms->tbu_clk)
clk_prepare_enable(mdp5_kms->tbu_clk);
if (mdp5_kms->tbu_rt_clk)
clk_prepare_enable(mdp5_kms->tbu_rt_clk);
return 0;
}
@ -466,14 +469,11 @@ static int modeset_init(struct mdp5_kms *mdp5_kms)
{
struct drm_device *dev = mdp5_kms->dev;
struct msm_drm_private *priv = dev->dev_private;
const struct mdp5_cfg_hw *hw_cfg;
unsigned int num_crtcs;
int i, ret, pi = 0, ci = 0;
struct drm_plane *primary[MAX_BASES] = { NULL };
struct drm_plane *cursor[MAX_BASES] = { NULL };
hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
/*
* Construct encoders and modeset initialize connector devices
* for each external display interface.
@ -737,8 +737,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
kms->aspace = aspace;
ret = aspace->mmu->funcs->attach(aspace->mmu, iommu_ports,
ARRAY_SIZE(iommu_ports));
ret = aspace->mmu->funcs->attach(aspace->mmu);
if (ret) {
DRM_DEV_ERROR(&pdev->dev, "failed to attach iommu: %d\n",
ret);
@ -974,6 +973,8 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev)
/* optional clocks: */
get_clk(pdev, &mdp5_kms->lut_clk, "lut", false);
get_clk(pdev, &mdp5_kms->tbu_clk, "tbu", false);
get_clk(pdev, &mdp5_kms->tbu_rt_clk, "tbu_rt", false);
/* we need to set a default rate before enabling. Set a safe
* rate first, then figure out hw revision, and then set a

2
drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h
View File

@ -53,6 +53,8 @@ struct mdp5_kms {
struct clk *ahb_clk;
struct clk *core_clk;
struct clk *lut_clk;
struct clk *tbu_clk;
struct clk *tbu_rt_clk;
struct clk *vsync_clk;
/*

2
drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c
View File

@ -121,7 +121,6 @@ uint32_t mdp5_smp_calculate(struct mdp5_smp *smp,
struct mdp5_kms *mdp5_kms = get_kms(smp);
int rev = mdp5_cfg_get_hw_rev(mdp5_kms->cfg);
int i, hsub, nplanes, nlines;
u32 fmt = format->base.pixel_format;
uint32_t blkcfg = 0;
nplanes = info->num_planes;
@ -135,7 +134,6 @@ uint32_t mdp5_smp_calculate(struct mdp5_smp *smp,
* them together, writes to SMP using a single client.
*/
if ((rev > 0) && (format->chroma_sample > CHROMA_FULL)) {
fmt = DRM_FORMAT_NV24;
nplanes = 2;
/* if decimation is enabled, HW decimates less on the

28
drivers/gpu/drm/msm/dsi/dsi_cfg.c
View File

@ -66,6 +66,26 @@ static const struct msm_dsi_config msm8916_dsi_cfg = {
.num_dsi = 1,
};
static const char * const dsi_8976_bus_clk_names[] = {
"mdp_core", "iface", "bus",
};
static const struct msm_dsi_config msm8976_dsi_cfg = {
.io_offset = DSI_6G_REG_SHIFT,
.reg_cfg = {
.num = 3,
.regs = {
{"gdsc", -1, -1},
{"vdda", 100000, 100}, /* 1.2 V */
{"vddio", 100000, 100}, /* 1.8 V */
},
},
.bus_clk_names = dsi_8976_bus_clk_names,
.num_bus_clks = ARRAY_SIZE(dsi_8976_bus_clk_names),
.io_start = { 0x1a94000, 0x1a96000 },
.num_dsi = 2,
};
static const struct msm_dsi_config msm8994_dsi_cfg = {
.io_offset = DSI_6G_REG_SHIFT,
.reg_cfg = {
@ -147,7 +167,7 @@ static const struct msm_dsi_config sdm845_dsi_cfg = {
.num_dsi = 2,
};
const static struct msm_dsi_host_cfg_ops msm_dsi_v2_host_ops = {
static const struct msm_dsi_host_cfg_ops msm_dsi_v2_host_ops = {
.link_clk_enable = dsi_link_clk_enable_v2,
.link_clk_disable = dsi_link_clk_disable_v2,
.clk_init_ver = dsi_clk_init_v2,
@ -158,7 +178,7 @@ const static struct msm_dsi_host_cfg_ops msm_dsi_v2_host_ops = {
.calc_clk_rate = dsi_calc_clk_rate_v2,
};
const static struct msm_dsi_host_cfg_ops msm_dsi_6g_host_ops = {
static const struct msm_dsi_host_cfg_ops msm_dsi_6g_host_ops = {
.link_clk_enable = dsi_link_clk_enable_6g,
.link_clk_disable = dsi_link_clk_disable_6g,
.clk_init_ver = NULL,
@ -169,7 +189,7 @@ const static struct msm_dsi_host_cfg_ops msm_dsi_6g_host_ops = {
.calc_clk_rate = dsi_calc_clk_rate_6g,
};
const static struct msm_dsi_host_cfg_ops msm_dsi_6g_v2_host_ops = {
static const struct msm_dsi_host_cfg_ops msm_dsi_6g_v2_host_ops = {
.link_clk_enable = dsi_link_clk_enable_6g,
.link_clk_disable = dsi_link_clk_disable_6g,
.clk_init_ver = dsi_clk_init_6g_v2,
@ -197,6 +217,8 @@ static const struct msm_dsi_cfg_handler dsi_cfg_handlers[] = {
&msm8916_dsi_cfg, &msm_dsi_6g_host_ops},
{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_4_1,
&msm8996_dsi_cfg, &msm_dsi_6g_host_ops},
{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_4_2,
&msm8976_dsi_cfg, &msm_dsi_6g_host_ops},
{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_2_0,
&msm8998_dsi_cfg, &msm_dsi_6g_v2_host_ops},
{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_2_1,

1
drivers/gpu/drm/msm/dsi/dsi_cfg.h
View File

@ -17,6 +17,7 @@
#define MSM_DSI_6G_VER_MINOR_V1_3 0x10030000
#define MSM_DSI_6G_VER_MINOR_V1_3_1 0x10030001
#define MSM_DSI_6G_VER_MINOR_V1_4_1 0x10040001
#define MSM_DSI_6G_VER_MINOR_V1_4_2 0x10040002
#define MSM_DSI_6G_VER_MINOR_V2_2_0 0x20000000
#define MSM_DSI_6G_VER_MINOR_V2_2_1 0x20020001

3
drivers/gpu/drm/msm/dsi/dsi_host.c
View File

@ -1293,14 +1293,13 @@ static int dsi_cmd_dma_tx(struct msm_dsi_host *msm_host, int len)
static int dsi_cmd_dma_rx(struct msm_dsi_host *msm_host,
u8 *buf, int rx_byte, int pkt_size)
{
u32 *lp, *temp, data;
u32 *temp, data;
int i, j = 0, cnt;
u32 read_cnt;
u8 reg[16];
int repeated_bytes = 0;
int buf_offset = buf - msm_host->rx_buf;
lp = (u32 *)buf;
temp = (u32 *)reg;
cnt = (rx_byte + 3) >> 2;
if (cnt > 4)

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