linux_dsm_epyc7002/drivers/gpu/drm/i915/intel_guc_fw.c

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/*
* Copyright © 2014 Intel Corporation
*
* 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 (including the next
* paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Vinit Azad <vinit.azad@intel.com>
* Ben Widawsky <ben@bwidawsk.net>
* Dave Gordon <david.s.gordon@intel.com>
* Alex Dai <yu.dai@intel.com>
*/
#include "intel_guc_fw.h"
#include "i915_drv.h"
drm/i915/guc: Change default GuC FW for SKL to v9.33 This patch makes v9.33 firmware as default firmware for SKL. Note: GuC logging control is changed with this firmware. GuC is expecting i915 to set control bit to enable "default logging" while using GuC action UK_LOG_ENABLE_LOGGING. However i915 is currently not doing this because it is version specific change and can be handled entirely in GuC. It will need to be fixed in future firmwares. This update includes (since v6.1): - HuC RSA Keys updated. - Adding per engine preemption support in GuC scheduler - Minor bug fixes. - Added support to log media reset count for host to read it - Sub-feature level control for power management features. - Minor clean-up for power management interface. - Unified power management interface and scheduler interface into 1 file using same version. - Bug Fix for multi context scheduler flag. - DCC spec changes for BXT + DCT enabling - SB based Pre-ETM/ETM flow enabling for debug signed GuC/HuC - Moving GuC non_critical r/w data to lower SRAM 64KB - Media engine Reset fix. Correctly marking context for resubmission in Media Reset case. - ABT Disable bug fix. Disabled Evaluation mode on context change. - Async FW in Engine Schedule feature (not enabled from KMD) - GuC clean up to align developer build in line to production build. - DCC consistency fix for SKL - Disable ARAT interrupt before programming ARAT delta. - Memory range check in Parse to avoid failure due to overflow. - Enabled WA for MSGCH hang issue - Clear forcewake in CSB when SQ is empty. - Move UkGuckmdInterface.h file from 2016 folders to common 2016 folder. - This is file location change.No functional change done as part of this check in. - Enable decoupled freq for SKL GT4 - 3 tries of wake request needed from GuC2CSME for ME to wake up. Request has come from ME spec - During reset one parameter was not getting accounted - Enabling Guc Log changes for ultra low logging for OCA - Enabling build failure check to catch critical section overflow. - Disable build.bat redundant prints. - Move few least used functions to non-critical section. - Rearrange GuC documentation folder structure. - Synchronize SLPC internal debug interface with other branches. - Fixing Issue with Default Guc Log changes for OCA using special Control Bit v2: Rebase. Updated commit message. Signed-off-by: Jeff McGee <jeff.mcgee@intel.com> Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Spotswood John A <john.a.spotswood@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1511972351-574-2-git-send-email-sagar.a.kamble@intel.com
2017-11-29 23:19:09 +07:00
#define SKL_FW_MAJOR 9
#define SKL_FW_MINOR 33
drm/i915/guc: Change default GuC FW for BXT to v9.29 This patch makes v9.29 firmware as default firmware for BXT. Note: GuC logging control is changed with this firmware. GuC is expecting i915 to set control bit to enable "default logging" while using GuC action UK_LOG_ENABLE_LOGGING. However i915 is currently not doing this because it is version specific change and can be handled entirely in GuC. It will need to be fixed in future firmwares. This update includes (since v8.7): - Added support to log media reset count for host to read it - BXT WA for fixing MTP hangs. WaDisableDOPRenderClkGatingAtSubmit - Sub-feature level control for power management features. - Minor clean-up for power management interface. - Unified power management interface and scheduler interface into 1 file using same version. - Bug Fix for multi context scheduler flag. - DCC spec changes for BXT + DCT enabling - Springboard based Pre-ETM/ETM flow enabling for debug signed GuC/HuC - Moving GuC non_critical r/w data to lower SRAM 64KB - Enabled IBC for BXT - Media engine Reset fix. Correctly marking context for resubmission in Media Reset case. - SLPC Dynamic RPe fix to resolve issues where incorrect frequency was set. - ABT Disable bug fix. Disabled Evaluation mode on context change. - GuC clean up to align developer build in line to production build. - Disable ARAT interrupt before programming ARAT delta. - Memory range check in Parse to avoid failure due to overflow. - Clear forcewake in CSB when SQ is empty. - SLPC IBC 1.6 for APL to ensure multiplier does not cap IA below Pe. - Move UkGuckmdInterface.h file from 2016 folders to common 2016 folder. - This is file location change. No functional change done as part of this check in. - 3 tries of wake request needed from GuC2CSME for ME to wake up. Request has come from ME spec - During reset one parameter was not getting accounted - Enabling Guc Log changes for ultra low logging for OCA - Disable build.bat redundant prints. - Move few least used functions to non-critical section. - Rearrange GuC documentation folder structure. - Fixing Issue with Default Guc Log changes for OCA using special Control Bit v2: Rebase. Updated commit message. Signed-off-by: Jeff McGee <jeff.mcgee@intel.com> Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Spotswood John A <john.a.spotswood@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1511972351-574-3-git-send-email-sagar.a.kamble@intel.com
2017-11-29 23:19:10 +07:00
#define BXT_FW_MAJOR 9
#define BXT_FW_MINOR 29
#define KBL_FW_MAJOR 9
#define KBL_FW_MINOR 14
#define GLK_FW_MAJOR 10
#define GLK_FW_MINOR 56
#define GUC_FW_PATH(platform, major, minor) \
"i915/" __stringify(platform) "_guc_ver" __stringify(major) "_" __stringify(minor) ".bin"
#define I915_SKL_GUC_UCODE GUC_FW_PATH(skl, SKL_FW_MAJOR, SKL_FW_MINOR)
MODULE_FIRMWARE(I915_SKL_GUC_UCODE);
#define I915_BXT_GUC_UCODE GUC_FW_PATH(bxt, BXT_FW_MAJOR, BXT_FW_MINOR)
MODULE_FIRMWARE(I915_BXT_GUC_UCODE);
#define I915_KBL_GUC_UCODE GUC_FW_PATH(kbl, KBL_FW_MAJOR, KBL_FW_MINOR)
MODULE_FIRMWARE(I915_KBL_GUC_UCODE);
#define I915_GLK_GUC_UCODE GUC_FW_PATH(glk, GLK_FW_MAJOR, GLK_FW_MINOR)
/**
* intel_guc_fw_select() - selects GuC firmware for uploading
*
* @guc: intel_guc struct
*
* Return: zero when we know firmware, non-zero in other case
*/
int intel_guc_fw_select(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
intel_uc_fw_init(&guc->fw, INTEL_UC_FW_TYPE_GUC);
if (i915_modparams.guc_firmware_path) {
guc->fw.path = i915_modparams.guc_firmware_path;
guc->fw.major_ver_wanted = 0;
guc->fw.minor_ver_wanted = 0;
} else if (IS_SKYLAKE(dev_priv)) {
guc->fw.path = I915_SKL_GUC_UCODE;
guc->fw.major_ver_wanted = SKL_FW_MAJOR;
guc->fw.minor_ver_wanted = SKL_FW_MINOR;
} else if (IS_BROXTON(dev_priv)) {
guc->fw.path = I915_BXT_GUC_UCODE;
guc->fw.major_ver_wanted = BXT_FW_MAJOR;
guc->fw.minor_ver_wanted = BXT_FW_MINOR;
} else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) {
guc->fw.path = I915_KBL_GUC_UCODE;
guc->fw.major_ver_wanted = KBL_FW_MAJOR;
guc->fw.minor_ver_wanted = KBL_FW_MINOR;
} else if (IS_GEMINILAKE(dev_priv)) {
guc->fw.path = I915_GLK_GUC_UCODE;
guc->fw.major_ver_wanted = GLK_FW_MAJOR;
guc->fw.minor_ver_wanted = GLK_FW_MINOR;
} else {
DRM_ERROR("No GuC firmware known for platform with GuC!\n");
return -ENOENT;
}
return 0;
}
static void guc_prepare_xfer(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
/* Must program this register before loading the ucode with DMA */
I915_WRITE(GUC_SHIM_CONTROL, GUC_DISABLE_SRAM_INIT_TO_ZEROES |
GUC_ENABLE_READ_CACHE_LOGIC |
GUC_ENABLE_MIA_CACHING |
GUC_ENABLE_READ_CACHE_FOR_SRAM_DATA |
GUC_ENABLE_READ_CACHE_FOR_WOPCM_DATA |
GUC_ENABLE_MIA_CLOCK_GATING);
if (IS_GEN9_LP(dev_priv))
I915_WRITE(GEN9LP_GT_PM_CONFIG, GT_DOORBELL_ENABLE);
else
I915_WRITE(GEN9_GT_PM_CONFIG, GT_DOORBELL_ENABLE);
if (IS_GEN9(dev_priv)) {
/* DOP Clock Gating Enable for GuC clocks */
I915_WRITE(GEN7_MISCCPCTL, (GEN8_DOP_CLOCK_GATE_GUC_ENABLE |
I915_READ(GEN7_MISCCPCTL)));
/* allows for 5us (in 10ns units) before GT can go to RC6 */
I915_WRITE(GUC_ARAT_C6DIS, 0x1FF);
}
}
/* Copy RSA signature from the fw image to HW for verification */
static int guc_xfer_rsa(struct intel_guc *guc, struct i915_vma *vma)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct intel_uc_fw *guc_fw = &guc->fw;
struct sg_table *sg = vma->pages;
u32 rsa[UOS_RSA_SCRATCH_COUNT];
int i;
if (sg_pcopy_to_buffer(sg->sgl, sg->nents, rsa, sizeof(rsa),
guc_fw->rsa_offset) != sizeof(rsa))
return -EINVAL;
for (i = 0; i < UOS_RSA_SCRATCH_COUNT; i++)
I915_WRITE(UOS_RSA_SCRATCH(i), rsa[i]);
return 0;
}
/*
* Transfer the firmware image to RAM for execution by the microcontroller.
*
* Architecturally, the DMA engine is bidirectional, and can potentially even
* transfer between GTT locations. This functionality is left out of the API
* for now as there is no need for it.
*/
static int guc_xfer_ucode(struct intel_guc *guc, struct i915_vma *vma)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct intel_uc_fw *guc_fw = &guc->fw;
unsigned long offset;
u32 status;
int ret;
/*
* The header plus uCode will be copied to WOPCM via DMA, excluding any
* other components
*/
I915_WRITE(DMA_COPY_SIZE, guc_fw->header_size + guc_fw->ucode_size);
/* Set the source address for the new blob */
offset = guc_ggtt_offset(vma) + guc_fw->header_offset;
I915_WRITE(DMA_ADDR_0_LOW, lower_32_bits(offset));
I915_WRITE(DMA_ADDR_0_HIGH, upper_32_bits(offset) & 0xFFFF);
/*
* Set the DMA destination. Current uCode expects the code to be
* loaded at 8k; locations below this are used for the stack.
*/
I915_WRITE(DMA_ADDR_1_LOW, 0x2000);
I915_WRITE(DMA_ADDR_1_HIGH, DMA_ADDRESS_SPACE_WOPCM);
/* Finally start the DMA */
I915_WRITE(DMA_CTRL, _MASKED_BIT_ENABLE(UOS_MOVE | START_DMA));
/* Wait for DMA to finish */
ret = __intel_wait_for_register_fw(dev_priv, DMA_CTRL, START_DMA, 0,
2, 100, &status);
DRM_DEBUG_DRIVER("GuC DMA status %#x\n", status);
return ret;
}
/*
* Read the GuC status register (GUC_STATUS) and store it in the
* specified location; then return a boolean indicating whether
* the value matches either of two values representing completion
* of the GuC boot process.
*
* This is used for polling the GuC status in a wait_for()
* loop below.
*/
static inline bool guc_ready(struct intel_guc *guc, u32 *status)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
u32 val = I915_READ(GUC_STATUS);
u32 uk_val = val & GS_UKERNEL_MASK;
*status = val;
return (uk_val == GS_UKERNEL_READY) ||
((val & GS_MIA_CORE_STATE) && (uk_val == GS_UKERNEL_LAPIC_DONE));
}
static int guc_wait_ucode(struct intel_guc *guc)
{
u32 status;
int ret;
/*
* Wait for the GuC to start up.
* NB: Docs recommend not using the interrupt for completion.
* Measurements indicate this should take no more than 20ms, so a
* timeout here indicates that the GuC has failed and is unusable.
* (Higher levels of the driver will attempt to fall back to
* execlist mode if this happens.)
*/
ret = wait_for(guc_ready(guc, &status), 100);
DRM_DEBUG_DRIVER("GuC status %#x\n", status);
if ((status & GS_BOOTROM_MASK) == GS_BOOTROM_RSA_FAILED) {
DRM_ERROR("GuC firmware signature verification failed\n");
ret = -ENOEXEC;
}
return ret;
}
/*
* Load the GuC firmware blob into the MinuteIA.
*/
static int guc_fw_xfer(struct intel_uc_fw *guc_fw, struct i915_vma *vma)
{
struct intel_guc *guc = container_of(guc_fw, struct intel_guc, fw);
struct drm_i915_private *dev_priv = guc_to_i915(guc);
int ret;
GEM_BUG_ON(guc_fw->type != INTEL_UC_FW_TYPE_GUC);
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
guc_prepare_xfer(guc);
/*
* Note that GuC needs the CSS header plus uKernel code to be copied
* by the DMA engine in one operation, whereas the RSA signature is
* loaded via MMIO.
*/
ret = guc_xfer_rsa(guc, vma);
if (ret)
DRM_WARN("GuC firmware signature xfer error %d\n", ret);
ret = guc_xfer_ucode(guc, vma);
if (ret)
DRM_WARN("GuC firmware code xfer error %d\n", ret);
ret = guc_wait_ucode(guc);
if (ret)
DRM_ERROR("GuC firmware xfer error %d\n", ret);
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
return ret;
}
/**
* intel_guc_fw_upload() - finish preparing the GuC for activity
* @guc: intel_guc structure
*
* Called during driver loading and also after a GPU reset.
*
* The main action required here it to load the GuC uCode into the device.
* The firmware image should have already been fetched into memory by the
* earlier call to intel_guc_init(), so here we need only check that
* worked, and then transfer the image to the h/w.
*
* Return: non-zero code on error
*/
int intel_guc_fw_upload(struct intel_guc *guc)
{
return intel_uc_fw_upload(&guc->fw, guc_fw_xfer);
}