diff --git a/drivers/gpu/drm/xe/regs/xe_engine_regs.h b/drivers/gpu/drm/xe/regs/xe_engine_regs.h index 717d560626ce..79873bf64e8d 100644 --- a/drivers/gpu/drm/xe/regs/xe_engine_regs.h +++ b/drivers/gpu/drm/xe/regs/xe_engine_regs.h @@ -58,6 +58,12 @@ #define RING_BBADDR(base) XE_REG((base) + 0x140) #define RING_BBADDR_UDW(base) XE_REG((base) + 0x168) + +/* Handling MOCS value in BLIT_CCTL like it was done CMD_CCTL */ +#define BLIT_CCTL(base) XE_REG((base) + 0x204) +#define BLIT_CCTL_DST_MOCS_MASK REG_GENMASK(14, 9) +#define BLIT_CCTL_SRC_MOCS_MASK REG_GENMASK(6, 1) + #define RING_EXECLIST_STATUS_LO(base) XE_REG((base) + 0x234) #define RING_EXECLIST_STATUS_HI(base) XE_REG((base) + 0x234 + 4) diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c index 603bb3ae3e37..3afca3dd9657 100644 --- a/drivers/gpu/drm/xe/xe_gt.c +++ b/drivers/gpu/drm/xe/xe_gt.c @@ -225,6 +225,7 @@ int xe_gt_record_default_lrcs(struct xe_gt *gt) xe_reg_sr_init(&hwe->reg_lrc, hwe->name, xe); xe_wa_process_lrc(hwe); + xe_hw_engine_setup_default_lrc_state(hwe); xe_tuning_process_lrc(hwe); default_lrc = drmm_kzalloc(&xe->drm, diff --git a/drivers/gpu/drm/xe/xe_hw_engine.c b/drivers/gpu/drm/xe/xe_hw_engine.c index 04ec276cfcf5..a9adac0624f6 100644 --- a/drivers/gpu/drm/xe/xe_hw_engine.c +++ b/drivers/gpu/drm/xe/xe_hw_engine.c @@ -268,6 +268,35 @@ void xe_hw_engine_enable_ring(struct xe_hw_engine *hwe) hw_engine_mmio_read32(hwe, RING_MI_MODE(0).reg); } +void +xe_hw_engine_setup_default_lrc_state(struct xe_hw_engine *hwe) +{ + struct xe_gt *gt = hwe->gt; + const u8 mocs_write_idx = gt->mocs.uc_index; + const u8 mocs_read_idx = gt->mocs.uc_index; + u32 blit_cctl_val = REG_FIELD_PREP(BLIT_CCTL_DST_MOCS_MASK, mocs_write_idx) | + REG_FIELD_PREP(BLIT_CCTL_SRC_MOCS_MASK, mocs_read_idx); + const struct xe_rtp_entry lrc_was[] = { + /* + * Some blitter commands do not have a field for MOCS, those + * commands will use MOCS index pointed by BLIT_CCTL. + * BLIT_CCTL registers are needed to be programmed to un-cached. + */ + { XE_RTP_NAME("BLIT_CCTL_default_MOCS"), + XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, XE_RTP_END_VERSION_UNDEFINED), + ENGINE_CLASS(COPY)), + XE_RTP_ACTIONS(FIELD_SET(BLIT_CCTL(0), + BLIT_CCTL_DST_MOCS_MASK | + BLIT_CCTL_SRC_MOCS_MASK, + blit_cctl_val, + XE_RTP_ACTION_FLAG(ENGINE_BASE))) + }, + {} + }; + + xe_rtp_process(lrc_was, &hwe->reg_lrc, gt, hwe); +} + static void hw_engine_setup_default_state(struct xe_hw_engine *hwe) { diff --git a/drivers/gpu/drm/xe/xe_hw_engine.h b/drivers/gpu/drm/xe/xe_hw_engine.h index ceab65397256..013efcd6d8c5 100644 --- a/drivers/gpu/drm/xe/xe_hw_engine.h +++ b/drivers/gpu/drm/xe/xe_hw_engine.h @@ -17,6 +17,7 @@ void xe_hw_engine_enable_ring(struct xe_hw_engine *hwe); void xe_hw_engine_print_state(struct xe_hw_engine *hwe, struct drm_printer *p); u32 xe_hw_engine_mask_per_class(struct xe_gt *gt, enum xe_engine_class engine_class); +void xe_hw_engine_setup_default_lrc_state(struct xe_hw_engine *hwe); bool xe_hw_engine_is_reserved(struct xe_hw_engine *hwe); static inline bool xe_hw_engine_is_valid(struct xe_hw_engine *hwe)