diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h index 8b441650e64b1e4ce82f96b45ce7fd575569ae83..9ad59645b7fef029b817eba382188ea9a0ffe0a4 100644 --- a/drivers/gpu/drm/i915/intel_guc.h +++ b/drivers/gpu/drm/i915/intel_guc.h @@ -33,6 +33,11 @@ #include "i915_guc_reg.h" #include "i915_vma.h" +/* + * Top level structure of GuC. It handles firmware loading and manages client + * pool and doorbells. intel_guc owns a i915_guc_client to replace the legacy + * ExecList submission. + */ struct intel_guc { struct intel_uc_fw fw; struct intel_guc_log log; @@ -83,6 +88,12 @@ static inline void intel_guc_notify(struct intel_guc *guc) guc->notify(guc); } +/* + * GuC does not allow any gfx GGTT address that falls into range [0, WOPCM_TOP), + * which is reserved for Boot ROM, SRAM and WOPCM. Currently this top address is + * 512K. In order to exclude 0-512K address space from GGTT, all gfx objects + * used by GuC is pinned with PIN_OFFSET_BIAS along with size of WOPCM. + */ static inline u32 guc_ggtt_offset(struct i915_vma *vma) { u32 offset = i915_ggtt_offset(vma); diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c index d9089bccab86a77f495ece71d19416d791d04013..8508b946c8e9b45ccc11eb4ae9be1942aea0836f 100644 --- a/drivers/gpu/drm/i915/intel_guc_loader.c +++ b/drivers/gpu/drm/i915/intel_guc_loader.c @@ -29,29 +29,6 @@ #include "i915_drv.h" #include "intel_uc.h" -/** - * DOC: GuC-specific firmware loader - * - * intel_guc: - * Top level structure of guc. It handles firmware loading and manages client - * pool and doorbells. intel_guc owns a i915_guc_client to replace the legacy - * ExecList submission. - * - * Firmware versioning: - * The firmware build process will generate a version header file with major and - * minor version defined. The versions are built into CSS header of firmware. - * i915 kernel driver set the minimal firmware version required per platform. - * The firmware installation package will install (symbolic link) proper version - * of firmware. - * - * GuC address space: - * GuC does not allow any gfx GGTT address that falls into range [0, WOPCM_TOP), - * which is reserved for Boot ROM, SRAM and WOPCM. Currently this top address is - * 512K. In order to exclude 0-512K address space from GGTT, all gfx objects - * used by GuC is pinned with PIN_OFFSET_BIAS along with size of WOPCM. - * - */ - #define SKL_FW_MAJOR 6 #define SKL_FW_MINOR 1 diff --git a/drivers/gpu/drm/i915/intel_uc_fw.h b/drivers/gpu/drm/i915/intel_uc_fw.h index c3e9af4b9bf0eed2ff7b77d92f538f27f6cfef13..5c018492ccdc2e9e793af552e35e5687d43fc466 100644 --- a/drivers/gpu/drm/i915/intel_uc_fw.h +++ b/drivers/gpu/drm/i915/intel_uc_fw.h @@ -50,6 +50,11 @@ struct intel_uc_fw { enum intel_uc_fw_status fetch_status; enum intel_uc_fw_status load_status; + /* + * The firmware build process will generate a version header file with major and + * minor version defined. The versions are built into CSS header of firmware. + * i915 kernel driver set the minimal firmware version required per platform. + */ u16 major_ver_wanted; u16 minor_ver_wanted; u16 major_ver_found;