From 801a0caa627b3b2aa5933b66f0e4a83c4f85143e Mon Sep 17 00:00:00 2001 From: Daniele Ceraolo Spurio Date: Thu, 26 Mar 2020 11:11:18 -0700 Subject: [PATCH] drm/i915/huc: make "support huc" reflect HW capabilities We currently initialize HuC support based on GuC being enabled in modparam; this means that huc_is_supported() can return false on HW that does have a HuC when enable_guc=0. The rationale for this behavior is that HuC requires GuC for authentication and therefore is not supported by itself. However, we do not allow defining HuC fw wthout GuC fw and selecting HuC in modparam implicitly selects GuC as well, so we can't actually hit a scenario where HuC is selected alone. Therefore, we can flip the support check to reflect the HW capabilities and fw availability, which is more intuitive and will make it cleaner to log HuC the difference between not supported in HW and not selected. Removing the difference between GuC and HuC also allows us to simplify the init_early, since we don't need to differentiate the support based on the type of uC. Signed-off-by: Daniele Ceraolo Spurio Cc: Michal Wajdeczko Cc: John Harrison Cc: Matthew Brost Reviewed-by: Andi Shyti Reviewed-by: John Harrison Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20200326181121.16869-4-daniele.ceraolospurio@intel.com --- drivers/gpu/drm/i915/gt/uc/intel_guc.c | 2 +- drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c | 14 ------------ drivers/gpu/drm/i915/gt/uc/intel_guc_fw.h | 1 - drivers/gpu/drm/i915/gt/uc/intel_huc.c | 2 +- drivers/gpu/drm/i915/gt/uc/intel_huc_fw.c | 17 -------------- drivers/gpu/drm/i915/gt/uc/intel_huc_fw.h | 1 - drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 27 +++++++++++++++-------- drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h | 3 +-- 8 files changed, 21 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index 819f09ef51fc..827d75073879 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -169,7 +169,7 @@ void intel_guc_init_early(struct intel_guc *guc) { struct drm_i915_private *i915 = guc_to_gt(guc)->i915; - intel_guc_fw_init_early(guc); + intel_uc_fw_init_early(&guc->fw, INTEL_UC_FW_TYPE_GUC); intel_guc_ct_init_early(&guc->ct); intel_guc_log_init_early(&guc->log); intel_guc_submission_init_early(guc); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c index 3a1c47d600ea..d4a87f4c9421 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c @@ -13,20 +13,6 @@ #include "intel_guc_fw.h" #include "i915_drv.h" -/** - * intel_guc_fw_init_early() - initializes GuC firmware struct - * @guc: intel_guc struct - * - * On platforms with GuC selects firmware for uploading - */ -void intel_guc_fw_init_early(struct intel_guc *guc) -{ - struct drm_i915_private *i915 = guc_to_gt(guc)->i915; - - intel_uc_fw_init_early(&guc->fw, INTEL_UC_FW_TYPE_GUC, HAS_GT_UC(i915), - INTEL_INFO(i915)->platform, INTEL_REVID(i915)); -} - static void guc_prepare_xfer(struct intel_uncore *uncore) { u32 shim_flags = GUC_DISABLE_SRAM_INIT_TO_ZEROES | diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.h index b5ab639d7259..0b4d2a9c9435 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.h @@ -8,7 +8,6 @@ struct intel_guc; -void intel_guc_fw_init_early(struct intel_guc *guc); int intel_guc_fw_upload(struct intel_guc *guc); #endif diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c b/drivers/gpu/drm/i915/gt/uc/intel_huc.c index a74b65694512..d73dc21686e7 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c @@ -41,7 +41,7 @@ void intel_huc_init_early(struct intel_huc *huc) { struct drm_i915_private *i915 = huc_to_gt(huc)->i915; - intel_huc_fw_init_early(huc); + intel_uc_fw_init_early(&huc->fw, INTEL_UC_FW_TYPE_HUC); if (INTEL_GEN(i915) >= 11) { huc->status.reg = GEN11_HUC_KERNEL_LOAD_INFO; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.c index 9cdf4cbe691c..e5ef509c70e8 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.c @@ -7,23 +7,6 @@ #include "intel_huc_fw.h" #include "i915_drv.h" -/** - * 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_gt *gt = huc_to_gt(huc); - struct intel_uc *uc = >->uc; - struct drm_i915_private *i915 = gt->i915; - - intel_uc_fw_init_early(&huc->fw, INTEL_UC_FW_TYPE_HUC, - intel_uc_wants_guc(uc), - INTEL_INFO(i915)->platform, INTEL_REVID(i915)); -} - /** * intel_huc_fw_upload() - load HuC uCode to device * @huc: intel_huc structure diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.h index b791269ce923..12f264ee3e0b 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc_fw.h @@ -8,7 +8,6 @@ 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/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c index 18c755203688..fa893dd1823c 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c @@ -11,14 +11,20 @@ #include "intel_uc_fw_abi.h" #include "i915_drv.h" +static inline struct intel_gt * +____uc_fw_to_gt(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type) +{ + if (type == INTEL_UC_FW_TYPE_GUC) + return container_of(uc_fw, struct intel_gt, uc.guc.fw); + + GEM_BUG_ON(type != INTEL_UC_FW_TYPE_HUC); + return container_of(uc_fw, struct intel_gt, uc.huc.fw); +} + static inline struct intel_gt *__uc_fw_to_gt(struct intel_uc_fw *uc_fw) { GEM_BUG_ON(uc_fw->status == INTEL_UC_FIRMWARE_UNINITIALIZED); - if (uc_fw->type == INTEL_UC_FW_TYPE_GUC) - return container_of(uc_fw, struct intel_gt, uc.guc.fw); - - GEM_BUG_ON(uc_fw->type != INTEL_UC_FW_TYPE_HUC); - return container_of(uc_fw, struct intel_gt, uc.huc.fw); + return ____uc_fw_to_gt(uc_fw, uc_fw->type); } #ifdef CONFIG_DRM_I915_DEBUG_GUC @@ -195,9 +201,10 @@ static void __uc_fw_user_override(struct intel_uc_fw *uc_fw) * firmware to fetch and load. */ void intel_uc_fw_init_early(struct intel_uc_fw *uc_fw, - enum intel_uc_fw_type type, bool supported, - enum intel_platform platform, u8 rev) + enum intel_uc_fw_type type) { + struct drm_i915_private *i915 = ____uc_fw_to_gt(uc_fw, type)->i915; + /* * we use FIRMWARE_UNINITIALIZED to detect checks against uc_fw->status * before we're looked at the HW caps to see if we have uc support @@ -208,8 +215,10 @@ void intel_uc_fw_init_early(struct intel_uc_fw *uc_fw, uc_fw->type = type; - if (supported) { - __uc_fw_auto_select(uc_fw, platform, rev); + if (HAS_GT_UC(i915)) { + __uc_fw_auto_select(uc_fw, + INTEL_INFO(i915)->platform, + INTEL_REVID(i915)); __uc_fw_user_override(uc_fw); } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h index 888ff0de0244..23d3a423ac0f 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h @@ -239,8 +239,7 @@ static inline u32 intel_uc_fw_get_upload_size(struct intel_uc_fw *uc_fw) } void intel_uc_fw_init_early(struct intel_uc_fw *uc_fw, - enum intel_uc_fw_type type, bool supported, - enum intel_platform platform, u8 rev); + enum intel_uc_fw_type type); int intel_uc_fw_fetch(struct intel_uc_fw *uc_fw); void intel_uc_fw_cleanup_fetch(struct intel_uc_fw *uc_fw); int intel_uc_fw_upload(struct intel_uc_fw *uc_fw, u32 offset, u32 dma_flags);