From: Sagar Arun Kamble Date: Thu, 1 Mar 2018 16:45:45 +0000 (+0530) Subject: drm/i915/uc: Make GuC/HuC fw fetch and loading functions/file structure symmetric X-Git-Tag: v4.19~298^2~46^2~530 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=57312eaacd9b6c560032b9c9a755e0165f48ce52;p=platform%2Fkernel%2Flinux-rpi3.git drm/i915/uc: Make GuC/HuC fw fetch and loading functions/file structure symmetric GuC load function is named intel_guc_fw_upload() and HuC load function is named intel_huc_init_hw(). Make them consistent intel_*_fw_upload. Also move HuC fw loading functions and declarations to separate files intel_huc_fw.c|h like GuC. While at this, do below changes 1. Update kernel-doc comment for intel_*_fw_upload() functions 2. s/huc_ucode_xfer/huc_fw_xfer 3. Introduce intel_huc_fw_init_early() v2: Changed patch to update HuC functions instead of changing guc_fw_upload and update file structure. (Michal Wajdeczko) v3: Added SPDX License identifier to huc_fw.c|h. (Michal Wajdeczko) Signed-off-by: Sagar Arun Kamble Cc: Michal Winiarski Cc: Michal Wajdeczko Cc: Chris Wilson Cc: Anusha Srivatsa Reviewed-by: Michal Wajdeczko Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/1519922745-25441-1-git-send-email-sagar.a.kamble@intel.com --- diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 881d712..1bd9bc5 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -89,7 +89,8 @@ i915-y += intel_uc.o \ intel_guc_fw.o \ intel_guc_log.o \ intel_guc_submission.o \ - intel_huc.o + intel_huc.o \ + intel_huc_fw.o # autogenerated null render state i915-y += intel_renderstate_gen6.o \ diff --git a/drivers/gpu/drm/i915/intel_guc_fw.c b/drivers/gpu/drm/i915/intel_guc_fw.c index 3b09329..d07f2b9 100644 --- a/drivers/gpu/drm/i915/intel_guc_fw.c +++ b/drivers/gpu/drm/i915/intel_guc_fw.c @@ -269,15 +269,15 @@ static int guc_fw_xfer(struct intel_uc_fw *guc_fw, struct i915_vma *vma) } /** - * intel_guc_fw_upload() - finish preparing the GuC for activity + * intel_guc_fw_upload() - load GuC uCode to device * @guc: intel_guc structure * - * Called during driver loading and also after a GPU reset. + * Called from intel_uc_init_hw() during driver load, resume from sleep and + * 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. + * earlier call to intel_uc_init_fw(), so here we need to only check that + * fetch succeeded, and then transfer the image to the h/w. * * Return: non-zero code on error */ diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c index ef9a05d..e37f58e 100644 --- a/drivers/gpu/drm/i915/intel_huc.c +++ b/drivers/gpu/drm/i915/intel_huc.c @@ -27,161 +27,9 @@ #include "intel_huc.h" #include "i915_drv.h" -/** - * DOC: HuC Firmware - * - * Motivation: - * GEN9 introduces a new dedicated firmware for usage in media HEVC (High - * Efficiency Video Coding) operations. Userspace can use the firmware - * capabilities by adding HuC specific commands to batch buffers. - * - * Implementation: - * The same firmware loader is used as the GuC. However, the actual - * loading to HW is deferred until GEM initialization is done. - * - * Note that HuC firmware loading must be done before GuC loading. - */ - -#define BXT_HUC_FW_MAJOR 01 -#define BXT_HUC_FW_MINOR 07 -#define BXT_BLD_NUM 1398 - -#define SKL_HUC_FW_MAJOR 01 -#define SKL_HUC_FW_MINOR 07 -#define SKL_BLD_NUM 1398 - -#define KBL_HUC_FW_MAJOR 02 -#define KBL_HUC_FW_MINOR 00 -#define KBL_BLD_NUM 1810 - -#define HUC_FW_PATH(platform, major, minor, bld_num) \ - "i915/" __stringify(platform) "_huc_ver" __stringify(major) "_" \ - __stringify(minor) "_" __stringify(bld_num) ".bin" - -#define I915_SKL_HUC_UCODE HUC_FW_PATH(skl, SKL_HUC_FW_MAJOR, \ - SKL_HUC_FW_MINOR, SKL_BLD_NUM) -MODULE_FIRMWARE(I915_SKL_HUC_UCODE); - -#define I915_BXT_HUC_UCODE HUC_FW_PATH(bxt, BXT_HUC_FW_MAJOR, \ - BXT_HUC_FW_MINOR, BXT_BLD_NUM) -MODULE_FIRMWARE(I915_BXT_HUC_UCODE); - -#define I915_KBL_HUC_UCODE HUC_FW_PATH(kbl, KBL_HUC_FW_MAJOR, \ - KBL_HUC_FW_MINOR, KBL_BLD_NUM) -MODULE_FIRMWARE(I915_KBL_HUC_UCODE); - -static void huc_fw_select(struct intel_uc_fw *huc_fw) -{ - struct intel_huc *huc = container_of(huc_fw, struct intel_huc, fw); - struct drm_i915_private *dev_priv = huc_to_i915(huc); - - GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC); - - if (!HAS_HUC(dev_priv)) - return; - - if (i915_modparams.huc_firmware_path) { - huc_fw->path = i915_modparams.huc_firmware_path; - huc_fw->major_ver_wanted = 0; - huc_fw->minor_ver_wanted = 0; - } else if (IS_SKYLAKE(dev_priv)) { - huc_fw->path = I915_SKL_HUC_UCODE; - huc_fw->major_ver_wanted = SKL_HUC_FW_MAJOR; - huc_fw->minor_ver_wanted = SKL_HUC_FW_MINOR; - } else if (IS_BROXTON(dev_priv)) { - huc_fw->path = I915_BXT_HUC_UCODE; - huc_fw->major_ver_wanted = BXT_HUC_FW_MAJOR; - huc_fw->minor_ver_wanted = BXT_HUC_FW_MINOR; - } else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) { - huc_fw->path = I915_KBL_HUC_UCODE; - huc_fw->major_ver_wanted = KBL_HUC_FW_MAJOR; - huc_fw->minor_ver_wanted = KBL_HUC_FW_MINOR; - } else { - DRM_WARN("%s: No firmware known for this platform!\n", - intel_uc_fw_type_repr(huc_fw->type)); - } -} - -/** - * intel_huc_init_early() - initializes HuC struct - * @huc: intel_huc struct - * - * On platforms with HuC selects firmware for uploading - */ void intel_huc_init_early(struct intel_huc *huc) { - struct intel_uc_fw *huc_fw = &huc->fw; - - intel_uc_fw_init(huc_fw, INTEL_UC_FW_TYPE_HUC); - huc_fw_select(huc_fw); -} - -/** - * huc_ucode_xfer() - DMA's the firmware - * @huc_fw: the firmware descriptor - * @vma: the firmware image (bound into the GGTT) - * - * Transfer the firmware image to RAM for execution by the microcontroller. - * - * Return: 0 on success, non-zero on failure - */ -static int huc_ucode_xfer(struct intel_uc_fw *huc_fw, struct i915_vma *vma) -{ - struct intel_huc *huc = container_of(huc_fw, struct intel_huc, fw); - struct drm_i915_private *dev_priv = huc_to_i915(huc); - unsigned long offset = 0; - u32 size; - int ret; - - GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC); - - intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); - - /* Set the source address for the uCode */ - offset = guc_ggtt_offset(vma) + huc_fw->header_offset; - I915_WRITE(DMA_ADDR_0_LOW, lower_32_bits(offset)); - I915_WRITE(DMA_ADDR_0_HIGH, upper_32_bits(offset) & 0xFFFF); - - /* Hardware doesn't look at destination address for HuC. Set it to 0, - * but still program the correct address space. - */ - I915_WRITE(DMA_ADDR_1_LOW, 0); - I915_WRITE(DMA_ADDR_1_HIGH, DMA_ADDRESS_SPACE_WOPCM); - - size = huc_fw->header_size + huc_fw->ucode_size; - I915_WRITE(DMA_COPY_SIZE, size); - - /* Start the DMA */ - I915_WRITE(DMA_CTRL, _MASKED_BIT_ENABLE(HUC_UKERNEL | START_DMA)); - - /* Wait for DMA to finish */ - ret = intel_wait_for_register_fw(dev_priv, DMA_CTRL, START_DMA, 0, 100); - - DRM_DEBUG_DRIVER("HuC DMA transfer wait over with ret %d\n", ret); - - /* Disable the bits once DMA is over */ - I915_WRITE(DMA_CTRL, _MASKED_BIT_DISABLE(HUC_UKERNEL)); - - intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); - - return ret; -} - -/** - * intel_huc_init_hw() - load HuC uCode to device - * @huc: intel_huc structure - * - * Called from intel_uc_init_hw() during driver loading and also after a GPU - * reset. Be note that HuC loading must be done before GuC loading. - * - * The firmware image should have already been fetched into memory by the - * earlier call to intel_uc_init_fw(), so here we need only check that - * is succeeded, and then transfer the image to the h/w. - * - */ -int intel_huc_init_hw(struct intel_huc *huc) -{ - return intel_uc_fw_upload(&huc->fw, huc_ucode_xfer); + intel_huc_fw_init_early(huc); } /** diff --git a/drivers/gpu/drm/i915/intel_huc.h b/drivers/gpu/drm/i915/intel_huc.h index 40039db..5d6e804 100644 --- a/drivers/gpu/drm/i915/intel_huc.h +++ b/drivers/gpu/drm/i915/intel_huc.h @@ -26,6 +26,7 @@ #define _INTEL_HUC_H_ #include "intel_uc_fw.h" +#include "intel_huc_fw.h" struct intel_huc { /* Generic uC firmware management */ @@ -35,7 +36,6 @@ struct intel_huc { }; void intel_huc_init_early(struct intel_huc *huc); -int intel_huc_init_hw(struct intel_huc *huc); int intel_huc_auth(struct intel_huc *huc); #endif diff --git a/drivers/gpu/drm/i915/intel_huc_fw.c b/drivers/gpu/drm/i915/intel_huc_fw.c new file mode 100644 index 0000000..c66afa9 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_huc_fw.c @@ -0,0 +1,166 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2014-2018 Intel Corporation + */ + +#include "intel_huc_fw.h" +#include "i915_drv.h" + +/** + * DOC: HuC Firmware + * + * Motivation: + * GEN9 introduces a new dedicated firmware for usage in media HEVC (High + * Efficiency Video Coding) operations. Userspace can use the firmware + * capabilities by adding HuC specific commands to batch buffers. + * + * Implementation: + * The same firmware loader is used as the GuC. However, the actual + * loading to HW is deferred until GEM initialization is done. + * + * Note that HuC firmware loading must be done before GuC loading. + */ + +#define BXT_HUC_FW_MAJOR 01 +#define BXT_HUC_FW_MINOR 07 +#define BXT_BLD_NUM 1398 + +#define SKL_HUC_FW_MAJOR 01 +#define SKL_HUC_FW_MINOR 07 +#define SKL_BLD_NUM 1398 + +#define KBL_HUC_FW_MAJOR 02 +#define KBL_HUC_FW_MINOR 00 +#define KBL_BLD_NUM 1810 + +#define HUC_FW_PATH(platform, major, minor, bld_num) \ + "i915/" __stringify(platform) "_huc_ver" __stringify(major) "_" \ + __stringify(minor) "_" __stringify(bld_num) ".bin" + +#define I915_SKL_HUC_UCODE HUC_FW_PATH(skl, SKL_HUC_FW_MAJOR, \ + SKL_HUC_FW_MINOR, SKL_BLD_NUM) +MODULE_FIRMWARE(I915_SKL_HUC_UCODE); + +#define I915_BXT_HUC_UCODE HUC_FW_PATH(bxt, BXT_HUC_FW_MAJOR, \ + BXT_HUC_FW_MINOR, BXT_BLD_NUM) +MODULE_FIRMWARE(I915_BXT_HUC_UCODE); + +#define I915_KBL_HUC_UCODE HUC_FW_PATH(kbl, KBL_HUC_FW_MAJOR, \ + KBL_HUC_FW_MINOR, KBL_BLD_NUM) +MODULE_FIRMWARE(I915_KBL_HUC_UCODE); + +static void huc_fw_select(struct intel_uc_fw *huc_fw) +{ + struct intel_huc *huc = container_of(huc_fw, struct intel_huc, fw); + struct drm_i915_private *dev_priv = huc_to_i915(huc); + + GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC); + + if (!HAS_HUC(dev_priv)) + return; + + if (i915_modparams.huc_firmware_path) { + huc_fw->path = i915_modparams.huc_firmware_path; + huc_fw->major_ver_wanted = 0; + huc_fw->minor_ver_wanted = 0; + } else if (IS_SKYLAKE(dev_priv)) { + huc_fw->path = I915_SKL_HUC_UCODE; + huc_fw->major_ver_wanted = SKL_HUC_FW_MAJOR; + huc_fw->minor_ver_wanted = SKL_HUC_FW_MINOR; + } else if (IS_BROXTON(dev_priv)) { + huc_fw->path = I915_BXT_HUC_UCODE; + huc_fw->major_ver_wanted = BXT_HUC_FW_MAJOR; + huc_fw->minor_ver_wanted = BXT_HUC_FW_MINOR; + } else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) { + huc_fw->path = I915_KBL_HUC_UCODE; + huc_fw->major_ver_wanted = KBL_HUC_FW_MAJOR; + huc_fw->minor_ver_wanted = KBL_HUC_FW_MINOR; + } else { + DRM_WARN("%s: No firmware known for this platform!\n", + intel_uc_fw_type_repr(huc_fw->type)); + } +} + +/** + * intel_huc_fw_init_early() - initializes HuC firmware struct + * @huc: intel_huc struct + * + * On platforms with HuC selects firmware for uploading + */ +void intel_huc_fw_init_early(struct intel_huc *huc) +{ + struct intel_uc_fw *huc_fw = &huc->fw; + + intel_uc_fw_init(huc_fw, INTEL_UC_FW_TYPE_HUC); + huc_fw_select(huc_fw); +} + +/** + * huc_fw_xfer() - DMA's the firmware + * @huc_fw: the firmware descriptor + * @vma: the firmware image (bound into the GGTT) + * + * Transfer the firmware image to RAM for execution by the microcontroller. + * + * Return: 0 on success, non-zero on failure + */ +static int huc_fw_xfer(struct intel_uc_fw *huc_fw, struct i915_vma *vma) +{ + struct intel_huc *huc = container_of(huc_fw, struct intel_huc, fw); + struct drm_i915_private *dev_priv = huc_to_i915(huc); + unsigned long offset = 0; + u32 size; + int ret; + + GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC); + + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + + /* Set the source address for the uCode */ + offset = guc_ggtt_offset(vma) + huc_fw->header_offset; + I915_WRITE(DMA_ADDR_0_LOW, lower_32_bits(offset)); + I915_WRITE(DMA_ADDR_0_HIGH, upper_32_bits(offset) & 0xFFFF); + + /* Hardware doesn't look at destination address for HuC. Set it to 0, + * but still program the correct address space. + */ + I915_WRITE(DMA_ADDR_1_LOW, 0); + I915_WRITE(DMA_ADDR_1_HIGH, DMA_ADDRESS_SPACE_WOPCM); + + size = huc_fw->header_size + huc_fw->ucode_size; + I915_WRITE(DMA_COPY_SIZE, size); + + /* Start the DMA */ + I915_WRITE(DMA_CTRL, _MASKED_BIT_ENABLE(HUC_UKERNEL | START_DMA)); + + /* Wait for DMA to finish */ + ret = intel_wait_for_register_fw(dev_priv, DMA_CTRL, START_DMA, 0, 100); + + DRM_DEBUG_DRIVER("HuC DMA transfer wait over with ret %d\n", ret); + + /* Disable the bits once DMA is over */ + I915_WRITE(DMA_CTRL, _MASKED_BIT_DISABLE(HUC_UKERNEL)); + + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); + + return ret; +} + +/** + * intel_huc_fw_upload() - load HuC uCode to device + * @huc: intel_huc structure + * + * Called from intel_uc_init_hw() during driver load, resume from sleep and + * after a GPU reset. Note that HuC must be loaded before GuC. + * + * The firmware image should have already been fetched into memory by the + * earlier call to intel_uc_init_fw(), so here we need to only check that + * fetch succeeded, and then transfer the image to the h/w. + * + * Return: non-zero code on error + */ +int intel_huc_fw_upload(struct intel_huc *huc) +{ + return intel_uc_fw_upload(&huc->fw, huc_fw_xfer); +} diff --git a/drivers/gpu/drm/i915/intel_huc_fw.h b/drivers/gpu/drm/i915/intel_huc_fw.h new file mode 100644 index 0000000..8a00a0e --- /dev/null +++ b/drivers/gpu/drm/i915/intel_huc_fw.h @@ -0,0 +1,15 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2014-2018 Intel Corporation + */ + +#ifndef _INTEL_HUC_FW_H_ +#define _INTEL_HUC_FW_H_ + +struct intel_huc; + +void intel_huc_fw_init_early(struct intel_huc *huc); +int intel_huc_fw_upload(struct intel_huc *huc); + +#endif diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index 9f1bac6..8e25474 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -361,7 +361,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv) goto err_out; if (USES_HUC(dev_priv)) { - ret = intel_huc_init_hw(huc); + ret = intel_huc_fw_upload(huc); if (ret) goto err_out; }