From: Daniele Ceraolo Spurio Date: Sat, 13 Jul 2019 10:00:08 +0000 (+0100) Subject: drm/i915/uc: introduce intel_uc_fw_supported X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=bb2881f8bdde127188bb5c3e6382a6157668d579;p=openwrt%2Fstaging%2Fblogic.git drm/i915/uc: introduce intel_uc_fw_supported Instead of always checking in the device config is GuC and HuC are supported or not, we can save the state in the uc_fw structure and avoid going through i915 every time from the low-level uc management code. while at it FIRMWARE_NONE has been renamed to better indicate that we haven't started the fetch/load yet, but we might have already selected a blob. Signed-off-by: Daniele Ceraolo Spurio Cc: Michal Wajdeczko Reviewed-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20190713100016.8026-3-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/intel_guc_fw.c b/drivers/gpu/drm/i915/intel_guc_fw.c index db1e0daca7db..ee95d4960c5c 100644 --- a/drivers/gpu/drm/i915/intel_guc_fw.c +++ b/drivers/gpu/drm/i915/intel_guc_fw.c @@ -79,8 +79,12 @@ static void guc_fw_select(struct intel_uc_fw *guc_fw) GEM_BUG_ON(guc_fw->type != INTEL_UC_FW_TYPE_GUC); - if (!HAS_GUC(i915)) + if (!HAS_GUC(i915)) { + guc_fw->fetch_status = INTEL_UC_FIRMWARE_NOT_SUPPORTED; return; + } + + guc_fw->fetch_status = INTEL_UC_FIRMWARE_NOT_STARTED; if (i915_modparams.guc_firmware_path) { guc_fw->path = i915_modparams.guc_firmware_path; diff --git a/drivers/gpu/drm/i915/intel_huc_fw.c b/drivers/gpu/drm/i915/intel_huc_fw.c index 05cbf8338f53..06e726ba9863 100644 --- a/drivers/gpu/drm/i915/intel_huc_fw.c +++ b/drivers/gpu/drm/i915/intel_huc_fw.c @@ -73,8 +73,12 @@ static void huc_fw_select(struct intel_uc_fw *huc_fw) GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC); - if (!HAS_HUC(dev_priv)) + if (!HAS_HUC(dev_priv)) { + huc_fw->fetch_status = INTEL_UC_FIRMWARE_NOT_SUPPORTED; return; + } + + huc_fw->fetch_status = INTEL_UC_FIRMWARE_NOT_STARTED; if (i915_modparams.huc_firmware_path) { huc_fw->path = i915_modparams.huc_firmware_path; diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index 00baaccc2f1c..e2b20f8e88cf 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -75,7 +75,8 @@ static int __get_default_guc_log_level(struct drm_i915_private *i915) { int guc_log_level; - if (!HAS_GUC(i915) || !intel_uc_is_using_guc(i915)) + if (!intel_uc_fw_supported(&i915->guc.fw) || + !intel_uc_is_using_guc(i915)) guc_log_level = GUC_LOG_LEVEL_DISABLED; else if (IS_ENABLED(CONFIG_DRM_I915_DEBUG) || IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) @@ -123,16 +124,16 @@ static void sanitize_options_early(struct drm_i915_private *i915) if (intel_uc_is_using_guc(i915) && !intel_uc_fw_is_selected(guc_fw)) { DRM_WARN("Incompatible option detected: %s=%d, %s!\n", "enable_guc", i915_modparams.enable_guc, - !HAS_GUC(i915) ? "no GuC hardware" : - "no GuC firmware"); + !intel_uc_fw_supported(guc_fw) ? + "no GuC hardware" : "no GuC firmware"); } /* Verify HuC firmware availability */ if (intel_uc_is_using_huc(i915) && !intel_uc_fw_is_selected(huc_fw)) { DRM_WARN("Incompatible option detected: %s=%d, %s!\n", "enable_guc", i915_modparams.enable_guc, - !HAS_HUC(i915) ? "no HuC hardware" : - "no HuC firmware"); + !intel_uc_fw_supported(huc_fw) ? + "no HuC hardware" : "no HuC firmware"); } /* XXX: GuC submission is unavailable for now */ @@ -152,8 +153,8 @@ static void sanitize_options_early(struct drm_i915_private *i915) if (i915_modparams.guc_log_level > 0 && !intel_uc_is_using_guc(i915)) { DRM_WARN("Incompatible option detected: %s=%d, %s!\n", "guc_log_level", i915_modparams.guc_log_level, - !HAS_GUC(i915) ? "no GuC hardware" : - "GuC not enabled"); + !intel_uc_fw_supported(guc_fw) ? + "no GuC hardware" : "GuC not enabled"); i915_modparams.guc_log_level = 0; } @@ -380,7 +381,7 @@ int intel_uc_init(struct drm_i915_private *i915) if (!USES_GUC(i915)) return 0; - if (!HAS_GUC(i915)) + if (!intel_uc_fw_supported(&guc->fw)) return -ENODEV; /* XXX: GuC submission is unavailable for now */ @@ -423,7 +424,7 @@ void intel_uc_fini(struct drm_i915_private *i915) if (!USES_GUC(i915)) return; - GEM_BUG_ON(!HAS_GUC(i915)); + GEM_BUG_ON(!intel_uc_fw_supported(&guc->fw)); if (USES_GUC_SUBMISSION(i915)) intel_guc_submission_fini(guc); @@ -439,7 +440,7 @@ static void __uc_sanitize(struct drm_i915_private *i915) struct intel_guc *guc = &i915->guc; struct intel_huc *huc = &i915->huc; - GEM_BUG_ON(!HAS_GUC(i915)); + GEM_BUG_ON(!intel_uc_fw_supported(&guc->fw)); intel_huc_sanitize(huc); intel_guc_sanitize(guc); @@ -464,7 +465,7 @@ int intel_uc_init_hw(struct drm_i915_private *i915) if (!USES_GUC(i915)) return 0; - GEM_BUG_ON(!HAS_GUC(i915)); + GEM_BUG_ON(!intel_uc_fw_supported(&guc->fw)); guc_reset_interrupts(guc); @@ -561,7 +562,7 @@ void intel_uc_fini_hw(struct drm_i915_private *i915) if (!intel_guc_is_loaded(guc)) return; - GEM_BUG_ON(!HAS_GUC(i915)); + GEM_BUG_ON(!intel_uc_fw_supported(&guc->fw)); if (USES_GUC_SUBMISSION(i915)) intel_guc_submission_disable(guc); diff --git a/drivers/gpu/drm/i915/intel_uc_fw.c b/drivers/gpu/drm/i915/intel_uc_fw.c index f342ddd47df8..8ce7210907c0 100644 --- a/drivers/gpu/drm/i915/intel_uc_fw.c +++ b/drivers/gpu/drm/i915/intel_uc_fw.c @@ -47,6 +47,8 @@ void intel_uc_fw_fetch(struct drm_i915_private *dev_priv, size_t size; int err; + GEM_BUG_ON(!intel_uc_fw_supported(uc_fw)); + if (!uc_fw->path) { dev_info(dev_priv->drm.dev, "%s: No firmware was defined for %s!\n", @@ -328,7 +330,7 @@ void intel_uc_fw_cleanup_fetch(struct intel_uc_fw *uc_fw) if (obj) i915_gem_object_put(obj); - uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE; + uc_fw->fetch_status = INTEL_UC_FIRMWARE_NOT_STARTED; } /** diff --git a/drivers/gpu/drm/i915/intel_uc_fw.h b/drivers/gpu/drm/i915/intel_uc_fw.h index 24e66469153c..833d04d06576 100644 --- a/drivers/gpu/drm/i915/intel_uc_fw.h +++ b/drivers/gpu/drm/i915/intel_uc_fw.h @@ -26,6 +26,7 @@ #define _INTEL_UC_FW_H_ #include +#include "i915_gem.h" struct drm_printer; struct drm_i915_private; @@ -34,8 +35,10 @@ struct drm_i915_private; #define INTEL_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915" enum intel_uc_fw_status { + INTEL_UC_FIRMWARE_NOT_SUPPORTED = -2, /* no uc HW */ INTEL_UC_FIRMWARE_FAIL = -1, - INTEL_UC_FIRMWARE_NONE = 0, + INTEL_UC_FIRMWARE_UNINITIALIZED = 0, /* used to catch checks done too early */ + INTEL_UC_FIRMWARE_NOT_STARTED = 1, INTEL_UC_FIRMWARE_PENDING, INTEL_UC_FIRMWARE_SUCCESS }; @@ -79,10 +82,14 @@ static inline const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status) { switch (status) { + case INTEL_UC_FIRMWARE_NOT_SUPPORTED: + return "N/A - uc HW not available"; case INTEL_UC_FIRMWARE_FAIL: return "FAIL"; - case INTEL_UC_FIRMWARE_NONE: - return "NONE"; + case INTEL_UC_FIRMWARE_UNINITIALIZED: + return "UNINITIALIZED"; + case INTEL_UC_FIRMWARE_NOT_STARTED: + return "NOT_STARTED"; case INTEL_UC_FIRMWARE_PENDING: return "PENDING"; case INTEL_UC_FIRMWARE_SUCCESS: @@ -106,9 +113,15 @@ static inline void intel_uc_fw_init_early(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type) { + /* + * we use FIRMWARE_UNINITIALIZED to detect checks against fetch_status + * before we're looked at the HW caps to see if we have uc support + */ + BUILD_BUG_ON(INTEL_UC_FIRMWARE_UNINITIALIZED); + uc_fw->path = NULL; - uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE; - uc_fw->load_status = INTEL_UC_FIRMWARE_NONE; + uc_fw->fetch_status = INTEL_UC_FIRMWARE_UNINITIALIZED; + uc_fw->load_status = INTEL_UC_FIRMWARE_NOT_STARTED; uc_fw->type = type; } @@ -122,6 +135,13 @@ static inline bool intel_uc_fw_is_loaded(struct intel_uc_fw *uc_fw) return uc_fw->load_status == INTEL_UC_FIRMWARE_SUCCESS; } +static inline bool intel_uc_fw_supported(struct intel_uc_fw *uc_fw) +{ + /* shouldn't call this before checking hw/blob availability */ + GEM_BUG_ON(uc_fw->fetch_status == INTEL_UC_FIRMWARE_UNINITIALIZED); + return uc_fw->fetch_status != INTEL_UC_FIRMWARE_NOT_SUPPORTED; +} + static inline void intel_uc_fw_sanitize(struct intel_uc_fw *uc_fw) { if (intel_uc_fw_is_loaded(uc_fw))