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linux_dsm_epyc7002/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
Xiaojie Yuan 437298b833 drm/amdgpu/discovery: refactor ip list traversal 
for each ip, check whether it is needed by amdgpu driver,
if yes, record its base addresses

v2: change some DRM_INFO to DRM_DEBUG
v3: remove unused variable (Alex)

Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-21 18:58:21 -05:00

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12 KiB
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/*
* Copyright 2018 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "amdgpu.h"
#include "amdgpu_discovery.h"
#include "soc15_common.h"
#include "soc15_hw_ip.h"
#include "nbio/nbio_2_3_offset.h"
#include "discovery.h"
#define mmRCC_CONFIG_MEMSIZE 0xde3
#define mmMM_INDEX 0x0
#define mmMM_INDEX_HI 0x6
#define mmMM_DATA 0x1
#define HW_ID_MAX 300
const char *hw_id_names[HW_ID_MAX] = {
[MP1_HWID] = "MP1",
[MP2_HWID] = "MP2",
[THM_HWID] = "THM",
[SMUIO_HWID] = "SMUIO",
[FUSE_HWID] = "FUSE",
[CLKA_HWID] = "CLKA",
[PWR_HWID] = "PWR",
[GC_HWID] = "GC",
[UVD_HWID] = "UVD",
[AUDIO_AZ_HWID] = "AUDIO_AZ",
[ACP_HWID] = "ACP",
[DCI_HWID] = "DCI",
[DMU_HWID] = "DMU",
[DCO_HWID] = "DCO",
[DIO_HWID] = "DIO",
[XDMA_HWID] = "XDMA",
[DCEAZ_HWID] = "DCEAZ",
[DAZ_HWID] = "DAZ",
[SDPMUX_HWID] = "SDPMUX",
[NTB_HWID] = "NTB",
[IOHC_HWID] = "IOHC",
[L2IMU_HWID] = "L2IMU",
[VCE_HWID] = "VCE",
[MMHUB_HWID] = "MMHUB",
[ATHUB_HWID] = "ATHUB",
[DBGU_NBIO_HWID] = "DBGU_NBIO",
[DFX_HWID] = "DFX",
[DBGU0_HWID] = "DBGU0",
[DBGU1_HWID] = "DBGU1",
[OSSSYS_HWID] = "OSSSYS",
[HDP_HWID] = "HDP",
[SDMA0_HWID] = "SDMA0",
[SDMA1_HWID] = "SDMA1",
[ISP_HWID] = "ISP",
[DBGU_IO_HWID] = "DBGU_IO",
[DF_HWID] = "DF",
[CLKB_HWID] = "CLKB",
[FCH_HWID] = "FCH",
[DFX_DAP_HWID] = "DFX_DAP",
[L1IMU_PCIE_HWID] = "L1IMU_PCIE",
[L1IMU_NBIF_HWID] = "L1IMU_NBIF",
[L1IMU_IOAGR_HWID] = "L1IMU_IOAGR",
[L1IMU3_HWID] = "L1IMU3",
[L1IMU4_HWID] = "L1IMU4",
[L1IMU5_HWID] = "L1IMU5",
[L1IMU6_HWID] = "L1IMU6",
[L1IMU7_HWID] = "L1IMU7",
[L1IMU8_HWID] = "L1IMU8",
[L1IMU9_HWID] = "L1IMU9",
[L1IMU10_HWID] = "L1IMU10",
[L1IMU11_HWID] = "L1IMU11",
[L1IMU12_HWID] = "L1IMU12",
[L1IMU13_HWID] = "L1IMU13",
[L1IMU14_HWID] = "L1IMU14",
[L1IMU15_HWID] = "L1IMU15",
[WAFLC_HWID] = "WAFLC",
[FCH_USB_PD_HWID] = "FCH_USB_PD",
[PCIE_HWID] = "PCIE",
[PCS_HWID] = "PCS",
[DDCL_HWID] = "DDCL",
[SST_HWID] = "SST",
[IOAGR_HWID] = "IOAGR",
[NBIF_HWID] = "NBIF",
[IOAPIC_HWID] = "IOAPIC",
[SYSTEMHUB_HWID] = "SYSTEMHUB",
[NTBCCP_HWID] = "NTBCCP",
[UMC_HWID] = "UMC",
[SATA_HWID] = "SATA",
[USB_HWID] = "USB",
[CCXSEC_HWID] = "CCXSEC",
[XGMI_HWID] = "XGMI",
[XGBE_HWID] = "XGBE",
[MP0_HWID] = "MP0",
};
static int hw_id_map[MAX_HWIP] = {
[GC_HWIP] = GC_HWID,
[HDP_HWIP] = HDP_HWID,
[SDMA0_HWIP] = SDMA0_HWID,
[SDMA1_HWIP] = SDMA1_HWID,
[MMHUB_HWIP] = MMHUB_HWID,
[ATHUB_HWIP] = ATHUB_HWID,
[NBIO_HWIP] = NBIF_HWID,
[MP0_HWIP] = MP0_HWID,
[MP1_HWIP] = MP1_HWID,
[UVD_HWIP] = UVD_HWID,
[VCE_HWIP] = VCE_HWID,
[DF_HWIP] = DF_HWID,
[DCE_HWIP] = DCEAZ_HWID,
[OSSSYS_HWIP] = OSSSYS_HWID,
[SMUIO_HWIP] = SMUIO_HWID,
[PWR_HWIP] = PWR_HWID,
[NBIF_HWIP] = NBIF_HWID,
[THM_HWIP] = THM_HWID,
[CLK_HWIP] = CLKA_HWID,
};
static int amdgpu_discovery_read_binary(struct amdgpu_device *adev, uint8_t *binary)
{
uint32_t *p = (uint32_t *)binary;
uint64_t vram_size = (uint64_t)RREG32(mmRCC_CONFIG_MEMSIZE) << 20;
uint64_t pos = vram_size - BINARY_MAX_SIZE;
unsigned long flags;
while (pos < vram_size) {
spin_lock_irqsave(&adev->mmio_idx_lock, flags);
WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t)pos) | 0x80000000);
WREG32_NO_KIQ(mmMM_INDEX_HI, pos >> 31);
*p++ = RREG32_NO_KIQ(mmMM_DATA);
spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
pos += 4;
}
return 0;
}
static uint16_t amdgpu_discovery_calculate_checksum(uint8_t *data, uint32_t size)
{
uint16_t checksum = 0;
int i;
for (i = 0; i < size; i++)
checksum += data[i];
return checksum;
}
static inline bool amdgpu_discovery_verify_checksum(uint8_t *data, uint32_t size,
uint16_t expected)
{
return !!(amdgpu_discovery_calculate_checksum(data, size) == expected);
}
int amdgpu_discovery_init(struct amdgpu_device *adev)
{
struct table_info *info;
struct binary_header *bhdr;
struct ip_discovery_header *ihdr;
struct gpu_info_header *ghdr;
uint16_t offset;
uint16_t size;
uint16_t checksum;
int r;
adev->discovery = kzalloc(BINARY_MAX_SIZE, GFP_KERNEL);
if (!adev->discovery)
return -ENOMEM;
r = amdgpu_discovery_read_binary(adev, adev->discovery);
if (r) {
DRM_ERROR("failed to read ip discovery binary\n");
goto out;
}
bhdr = (struct binary_header *)adev->discovery;
if (le32_to_cpu(bhdr->binary_signature) != BINARY_SIGNATURE) {
DRM_ERROR("invalid ip discovery binary signature\n");
r = -EINVAL;
goto out;
}
offset = offsetof(struct binary_header, binary_checksum) +
sizeof(bhdr->binary_checksum);
size = bhdr->binary_size - offset;
checksum = bhdr->binary_checksum;
if (!amdgpu_discovery_verify_checksum(adev->discovery + offset,
size, checksum)) {
DRM_ERROR("invalid ip discovery binary checksum\n");
r = -EINVAL;
goto out;
}
info = &bhdr->table_list[IP_DISCOVERY];
offset = le16_to_cpu(info->offset);
checksum = le16_to_cpu(info->checksum);
ihdr = (struct ip_discovery_header *)(adev->discovery + offset);
if (le32_to_cpu(ihdr->signature) != DISCOVERY_TABLE_SIGNATURE) {
DRM_ERROR("invalid ip discovery data table signature\n");
r = -EINVAL;
goto out;
}
if (!amdgpu_discovery_verify_checksum(adev->discovery + offset,
ihdr->size, checksum)) {
DRM_ERROR("invalid ip discovery data table checksum\n");
r = -EINVAL;
goto out;
}
info = &bhdr->table_list[GC];
offset = le16_to_cpu(info->offset);
checksum = le16_to_cpu(info->checksum);
ghdr = (struct gpu_info_header *)(adev->discovery + offset);
if (!amdgpu_discovery_verify_checksum(adev->discovery + offset,
ghdr->size, checksum)) {
DRM_ERROR("invalid gc data table checksum\n");
r = -EINVAL;
goto out;
}
return 0;
out:
kfree(adev->discovery);
adev->discovery = NULL;
return r;
}
void amdgpu_discovery_fini(struct amdgpu_device *adev)
{
kfree(adev->discovery);
adev->discovery = NULL;
}
int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev)
{
struct binary_header *bhdr;
struct ip_discovery_header *ihdr;
struct die_header *dhdr;
struct ip *ip;
uint16_t die_offset;
uint16_t ip_offset;
uint16_t num_dies;
uint16_t num_ips;
uint8_t num_base_address;
int hw_ip;
int i, j, k;
if (!adev->discovery) {
DRM_ERROR("ip discovery uninitialized\n");
return -EINVAL;
}
bhdr = (struct binary_header *)adev->discovery;
ihdr = (struct ip_discovery_header *)(adev->discovery +
le16_to_cpu(bhdr->table_list[IP_DISCOVERY].offset));
num_dies = le16_to_cpu(ihdr->num_dies);
DRM_DEBUG("number of dies: %d\n", num_dies);
for (i = 0; i < num_dies; i++) {
die_offset = le16_to_cpu(ihdr->die_info[i].die_offset);
dhdr = (struct die_header *)(adev->discovery + die_offset);
num_ips = le16_to_cpu(dhdr->num_ips);
ip_offset = die_offset + sizeof(*dhdr);
if (le16_to_cpu(dhdr->die_id) != i) {
DRM_ERROR("invalid die id %d, expected %d\n",
le16_to_cpu(dhdr->die_id), i);
return -EINVAL;
}
DRM_DEBUG("number of hardware IPs on die%d: %d\n",
le16_to_cpu(dhdr->die_id), num_ips);
for (j = 0; j < num_ips; j++) {
ip = (struct ip *)(adev->discovery + ip_offset);
num_base_address = ip->num_base_address;
DRM_DEBUG("%s(%d) #%d v%d.%d.%d:\n",
hw_id_names[le16_to_cpu(ip->hw_id)],
le16_to_cpu(ip->hw_id),
ip->number_instance,
ip->major, ip->minor,
ip->revision);
for (k = 0; k < num_base_address; k++) {
/*
* convert the endianness of base addresses in place,
* so that we don't need to convert them when accessing adev->reg_offset.
*/
ip->base_address[k] = le32_to_cpu(ip->base_address[k]);
DRM_DEBUG("\t0x%08x\n", ip->base_address[k]);
}
for (hw_ip = 0; hw_ip < MAX_HWIP; hw_ip++) {
if (hw_id_map[hw_ip] == le16_to_cpu(ip->hw_id)) {
DRM_INFO("set register base offset for %s\n",
hw_id_names[le16_to_cpu(ip->hw_id)]);
adev->reg_offset[hw_ip][ip->number_instance] =
ip->base_address;
}
}
ip_offset += sizeof(*ip) + 4 * (ip->num_base_address - 1);
}
}
return 0;
}
int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id,
int *major, int *minor)
{
struct binary_header *bhdr;
struct ip_discovery_header *ihdr;
struct die_header *dhdr;
struct ip *ip;
uint16_t die_offset;
uint16_t ip_offset;
uint16_t num_dies;
uint16_t num_ips;
int i, j;
if (!adev->discovery) {
DRM_ERROR("ip discovery uninitialized\n");
return -EINVAL;
}
bhdr = (struct binary_header *)adev->discovery;
ihdr = (struct ip_discovery_header *)(adev->discovery +
le16_to_cpu(bhdr->table_list[IP_DISCOVERY].offset));
num_dies = le16_to_cpu(ihdr->num_dies);
for (i = 0; i < num_dies; i++) {
die_offset = le16_to_cpu(ihdr->die_info[i].die_offset);
dhdr = (struct die_header *)(adev->discovery + die_offset);
num_ips = le16_to_cpu(dhdr->num_ips);
ip_offset = die_offset + sizeof(*dhdr);
for (j = 0; j < num_ips; j++) {
ip = (struct ip *)(adev->discovery + ip_offset);
if (le16_to_cpu(ip->hw_id) == hw_id) {
if (major)
*major = ip->major;
if (minor)
*minor = ip->minor;
return 0;
}
ip_offset += sizeof(*ip) + 4 * (ip->num_base_address - 1);
}
}
return -EINVAL;
}
int amdgpu_discovery_get_gfx_info(struct amdgpu_device *adev)
{
struct binary_header *bhdr;
struct gc_info_v1_0 *gc_info;
if (!adev->discovery) {
DRM_ERROR("ip discovery uninitialized\n");
return -EINVAL;
}
bhdr = (struct binary_header *)adev->discovery;
gc_info = (struct gc_info_v1_0 *)(adev->discovery +
le16_to_cpu(bhdr->table_list[GC].offset));
adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->gc_num_se);
adev->gfx.config.max_cu_per_sh = 2 * (le32_to_cpu(gc_info->gc_num_wgp0_per_sa) +
le32_to_cpu(gc_info->gc_num_wgp1_per_sa));
adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->gc_num_sa_per_se);
adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->gc_num_rb_per_se);
adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->gc_num_gl2c);
adev->gfx.config.max_gprs = le32_to_cpu(gc_info->gc_num_gprs);
adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->gc_num_max_gs_thds);
adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->gc_gs_table_depth);
adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->gc_gsprim_buff_depth);
adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->gc_double_offchip_lds_buffer);
adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->gc_wave_size);
adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->gc_max_waves_per_simd);
adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->gc_max_scratch_slots_per_cu);
adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->gc_lds_size);
adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->gc_num_sc_per_se) /
le32_to_cpu(gc_info->gc_num_sa_per_se);
adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->gc_num_packer_per_sc);
return 0;
}
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