> -----Original Message-----
> From: Roper, Matthew D <matthew.d.roper@xxxxxxxxx>
> Sent: Tuesday, November 2, 2021 3:25 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx; Roper, Matthew D
> <matthew.d.roper@xxxxxxxxx>; Srivatsa, Anusha
> <anusha.srivatsa@xxxxxxxxx>
> Subject: [PATCH 2/3] drm/i915/dg2: Add initial gt/ctx/engine workarounds
>
> Bspec: 54077,68173,54833
> Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
> Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gt/intel_workarounds.c | 278 +++++++++++++++++++-
> drivers/gpu/drm/i915/i915_reg.h | 94 +++++--
> drivers/gpu/drm/i915/intel_pm.c | 21 +-
> 3 files changed, 372 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 4aaa210fc003..37fd541a9719 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -644,6 +644,42 @@ static void dg1_ctx_workarounds_init(struct
> intel_engine_cs *engine,
> DG1_HZ_READ_SUPPRESSION_OPTIMIZATION_DISABLE);
> }
>
> +static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine,
> + struct i915_wa_list *wal)
> +{
> + gen12_ctx_gt_tuning_init(engine, wal);
> +
> + /* Wa_16011186671:dg2_g11 */
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) {
> + wa_masked_dis(wal, VFLSKPD,
> DIS_MULT_MISS_RD_SQUASH);
> + wa_masked_en(wal, VFLSKPD, DIS_OVER_FETCH_CACHE);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0)) {
> + /* Wa_14010469329:dg2_g10 */
> + wa_masked_en(wal, GEN11_COMMON_SLICE_CHICKEN3,
> + XEHP_DUAL_SIMD8_SEQ_MERGE_DISABLE);
> +
> + /*
> + * Wa_22010465075:dg2_g10
> + * Wa_22010613112:dg2_g10
> + * Wa_14010698770:dg2_g10
> + */
> + wa_masked_en(wal, GEN11_COMMON_SLICE_CHICKEN3,
> + GEN12_DISABLE_CPS_AWARE_COLOR_PIPE);
> + }
> +
> + /* Wa_16013271637:dg2 */
> + wa_masked_en(wal, SLICE_COMMON_ECO_CHICKEN1,
> + MSC_MSAA_REODER_BUF_BYPASS_DISABLE);
> +
> + /* Wa_22012532006:dg2 */
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_C0) ||
> + IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0))
> + wa_masked_en(wal, GEN9_HALF_SLICE_CHICKEN7,
> +
> DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA);
> +}
> +
> static void fakewa_disable_nestedbb_mode(struct intel_engine_cs *engine,
> struct i915_wa_list *wal)
> {
> @@ -730,7 +766,9 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs
> *engine,
> if (engine->class != RENDER_CLASS)
> goto done;
>
> - if (IS_XEHPSDV(i915))
> + if (IS_DG2(i915))
> + dg2_ctx_workarounds_init(engine, wal);
> + else if (IS_XEHPSDV(i915))
> ; /* noop; none at this time */
> else if (IS_DG1(i915))
> dg1_ctx_workarounds_init(engine, wal); @@ -1343,12
> +1381,117 @@ xehpsdv_gt_workarounds_init(struct intel_gt *gt, struct
> i915_wa_list *wal)
> GLOBAL_INVALIDATION_MODE);
> }
>
> +static void
> +dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
> +{
> + struct intel_engine_cs *engine;
> + int id;
> +
> + xehp_init_mcr(gt, wal);
> +
> + /* Wa_14011060649:dg2 */
> + wa_14011060649(gt, wal);
> +
> + /*
> + * Although there are per-engine instances of these registers,
> + * they technically exist outside the engine itself and are not
> + * impacted by engine resets. Furthermore, they're part of the
> + * GuC blacklist so trying to treat them as engine workarounds
> + * will result in GuC initialization failure and a wedged GPU.
> + */
> + for_each_engine(engine, gt, id) {
> + if (engine->class != VIDEO_DECODE_CLASS)
> + continue;
> +
> + /* Wa_16010515920:dg2_g10 */
> + if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0,
> STEP_B0))
> + wa_write_or(wal, VDBOX_CGCTL3F18(engine-
> >mmio_base),
> + ALNUNIT_CLKGATE_DIS);
> + }
> +
> + if (IS_DG2_G10(gt->i915)) {
> + /* Wa_22010523718:dg2 */
> + wa_write_or(wal, UNSLICE_UNIT_LEVEL_CLKGATE,
> + CG3DDISCFEG_CLKGATE_DIS);
> +
> + /* Wa_14011006942:dg2 */
> + wa_write_or(wal, SUBSLICE_UNIT_LEVEL_CLKGATE,
> + DSS_ROUTER_CLKGATE_DIS);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0)) {
> + /* Wa_14010680813:dg2_g10 */
> + wa_write_or(wal, GEN12_GAMSTLB_CTRL,
> CONTROL_BLOCK_CLKGATE_DIS |
> + EGRESS_BLOCK_CLKGATE_DIS |
> TAG_BLOCK_CLKGATE_DIS);
> +
> + /* Wa_14010948348:dg2_g10 */
> + wa_write_or(wal, UNSLCGCTL9430,
> MSQDUNIT_CLKGATE_DIS);
> +
> + /* Wa_14011037102:dg2_g10 */
> + wa_write_or(wal, UNSLCGCTL9444, LTCDD_CLKGATE_DIS);
> +
> + /* Wa_14011371254:dg2_g10 */
> + wa_write_or(wal, SLICE_UNIT_LEVEL_CLKGATE,
> NODEDSS_CLKGATE_DIS);
> +
> + /* Wa_14011431319:dg2_g10 */
> + wa_write_or(wal, UNSLCGCTL9440,
> GAMTLBOACS_CLKGATE_DIS |
> + GAMTLBVDBOX7_CLKGATE_DIS |
> + GAMTLBVDBOX6_CLKGATE_DIS |
> + GAMTLBVDBOX5_CLKGATE_DIS |
> + GAMTLBVDBOX4_CLKGATE_DIS |
> + GAMTLBVDBOX3_CLKGATE_DIS |
> + GAMTLBVDBOX2_CLKGATE_DIS |
> + GAMTLBVDBOX1_CLKGATE_DIS |
> + GAMTLBVDBOX0_CLKGATE_DIS |
> + GAMTLBKCR_CLKGATE_DIS |
> + GAMTLBGUC_CLKGATE_DIS |
> + GAMTLBBLT_CLKGATE_DIS);
> + wa_write_or(wal, UNSLCGCTL9444,
> GAMTLBGFXA0_CLKGATE_DIS |
> + GAMTLBGFXA1_CLKGATE_DIS |
> + GAMTLBCOMPA0_CLKGATE_DIS |
> + GAMTLBCOMPA1_CLKGATE_DIS |
> + GAMTLBCOMPB0_CLKGATE_DIS |
> + GAMTLBCOMPB1_CLKGATE_DIS |
> + GAMTLBCOMPC0_CLKGATE_DIS |
> + GAMTLBCOMPC1_CLKGATE_DIS |
> + GAMTLBCOMPD0_CLKGATE_DIS |
> + GAMTLBCOMPD1_CLKGATE_DIS |
> + GAMTLBMERT_CLKGATE_DIS |
> + GAMTLBVEBOX3_CLKGATE_DIS |
> + GAMTLBVEBOX2_CLKGATE_DIS |
> + GAMTLBVEBOX1_CLKGATE_DIS |
> + GAMTLBVEBOX0_CLKGATE_DIS);
> +
> + /* Wa_14010569222:dg2_g10 */
> + wa_write_or(wal, UNSLICE_UNIT_LEVEL_CLKGATE,
> + GAMEDIA_CLKGATE_DIS);
> +
> + /* Wa_14011028019:dg2_g10 */
> + wa_write_or(wal, SSMCGCTL9530, RTFUNIT_CLKGATE_DIS);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0) ||
> + IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0)) {
> + /* Wa_14012362059:dg2 */
> + wa_write_or(wal, GEN12_MERT_MOD_CTRL,
> FORCE_MISS_FTLB);
> + }
> +
> + /* Wa_1509235366:dg2 */
> + wa_write_or(wal, GEN12_GAMCNTRL_CTRL,
> INVALIDATION_BROADCAST_MODE_DIS |
> + GLOBAL_INVALIDATION_MODE);
> +
> + /* Wa_14014830051:dg2 */
> + wa_write_clr(wal, SARB_CHICKEN1, COMP_CKN_IN); }
> +
> static void
> gt_init_workarounds(struct intel_gt *gt, struct i915_wa_list *wal) {
> struct drm_i915_private *i915 = gt->i915;
>
> - if (IS_XEHPSDV(i915))
> + if (IS_DG2(i915))
> + dg2_gt_workarounds_init(gt, wal);
> + else if (IS_XEHPSDV(i915))
> xehpsdv_gt_workarounds_init(gt, wal);
> else if (IS_DG1(i915))
> dg1_gt_workarounds_init(gt, wal);
> @@ -1739,6 +1882,34 @@ static void xehpsdv_whitelist_build(struct
> intel_engine_cs *engine)
> allow_read_ctx_timestamp(engine);
> }
>
> +static void dg2_whitelist_build(struct intel_engine_cs *engine) {
> + struct i915_wa_list *w = &engine->whitelist;
> +
> + allow_read_ctx_timestamp(engine);
> +
> + switch (engine->class) {
> + case RENDER_CLASS:
> + /*
> + * Wa_1507100340:dg2_g10
> + *
> + * This covers 4 registers which are next to one another :
> + * - PS_INVOCATION_COUNT
> + * - PS_INVOCATION_COUNT_UDW
> + * - PS_DEPTH_COUNT
> + * - PS_DEPTH_COUNT_UDW
> + */
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0,
> STEP_B0))
> + whitelist_reg_ext(w, PS_INVOCATION_COUNT,
> +
> RING_FORCE_TO_NONPRIV_ACCESS_RD |
> +
> RING_FORCE_TO_NONPRIV_RANGE_4);
> +
> + break;
> + default:
> + break;
> + }
> +}
> +
> void intel_engine_init_whitelist(struct intel_engine_cs *engine) {
> struct drm_i915_private *i915 = engine->i915; @@ -1746,7 +1917,9
> @@ void intel_engine_init_whitelist(struct intel_engine_cs *engine)
>
> wa_init_start(w, "whitelist", engine->name);
>
> - if (IS_XEHPSDV(i915))
> + if (IS_DG2(i915))
> + dg2_whitelist_build(engine);
> + else if (IS_XEHPSDV(i915))
> xehpsdv_whitelist_build(engine);
> else if (IS_DG1(i915))
> dg1_whitelist_build(engine);
> @@ -1826,6 +1999,105 @@ static void
> rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
> {
> struct drm_i915_private *i915 = engine->i915;
> + u64 dss_mask = intel_sseu_get_subslices(&engine->gt->info.sseu, 0);
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) {
> + /* Wa_14013392000:dg2_g11 */
> + wa_masked_en(wal, GEN7_ROW_CHICKEN2,
> GEN12_ENABLE_LARGE_GRF_MODE);
> +
> + /* Wa_16011620976:dg2_g11 */
> + wa_write_or(wal, LSC_CHICKEN_BIT_0_UDW,
> DIS_CHAIN_2XSIMD8);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0) ||
> + IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) {
> + /* Wa_14012419201:dg2 */
> + wa_masked_en(wal, GEN9_ROW_CHICKEN4,
> +
> GEN12_DISABLE_HDR_PAST_PAYLOAD_HOLD_FIX);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_B0, STEP_C0) ||
> + IS_DG2_G11(engine->i915)) {
> + /*
> + * Wa_22012826095:dg2
> + * Wa_22013059131:dg2
> + */
> + wa_write_clr_set(wal, LSC_CHICKEN_BIT_0_UDW,
> + MAXREQS_PER_BANK,
> + REG_FIELD_PREP(MAXREQS_PER_BANK, 2));
> +
> + /* Wa_22013059131:dg2 */
> + wa_write_or(wal, LSC_CHICKEN_BIT_0,
> + FORCE_1_SUB_MESSAGE_PER_FRAGMENT);
> + }
> +
> + /* Wa_1308578152:dg2_g10 when first gslice is fused off */
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_B0, STEP_C0)
> &&
> + (dss_mask & GENMASK(GEN_DSS_PER_GSLICE - 1, 0)) == 0) {
> + wa_masked_dis(wal,
> GEN12_CS_DEBUG_MODE1_CCCSUNIT_BE_COMMON,
> + GEN12_REPLAY_MODE_GRANULARITY);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_B0,
> STEP_FOREVER) ||
> + IS_DG2_G11(engine->i915)) {
> + /* Wa_22013037850:dg2 */
> + wa_write_or(wal, LSC_CHICKEN_BIT_0_UDW,
> + DISABLE_128B_EVICTION_COMMAND_UDW);
> +
> + /* Wa_22012856258:dg2 */
> + wa_masked_en(wal, GEN7_ROW_CHICKEN2,
> + GEN12_DISABLE_READ_SUPPRESSION);
> +
> + /*
> + * Wa_22010960976:dg2
> + * Wa_14013347512:dg2
> + */
> + wa_masked_dis(wal, GEN12_HDC_CHICKEN0,
> +
> LSC_L1_FLUSH_CTL_3D_DATAPORT_FLUSH_EVENTS_MASK);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0)) {
> + /*
> + * Wa_1608949956:dg2_g10
> + * Wa_14010198302:dg2_g10
> + */
> + wa_masked_en(wal, GEN8_ROW_CHICKEN,
> + MDQ_ARBITRATION_MODE |
> UGM_BACKUP_MODE);
> +
> + /*
> + * Wa_14010918519:dg2_g10
> + *
> + * LSC_CHICKEN_BIT_0 always reads back as 0 is this
> stepping,
> + * so ignoring verification.
> + */
> + wa_add(wal, LSC_CHICKEN_BIT_0_UDW, 0,
> + FORCE_SLM_FENCE_SCOPE_TO_TILE |
> FORCE_UGM_FENCE_SCOPE_TO_TILE,
> + 0, false);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0)) {
> + /* Wa_22010430635:dg2 */
> + wa_masked_en(wal,
> + GEN9_ROW_CHICKEN4,
> + GEN12_DISABLE_GRF_CLEAR);
> +
> + /* Wa_14010648519:dg2 */
> + wa_write_or(wal, XEHP_L3NODEARBCFG, XEHP_LNESPARE);
> + }
> +
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_C0) ||
> + IS_DG2_G11(engine->i915)) {
> + /* Wa_22012654132:dg2 */
> + wa_add(wal, GEN10_CACHE_MODE_SS, 0,
> + _MASKED_BIT_ENABLE(ENABLE_PREFETCH_INTO_IC),
> + 0 /* write-only, so skip validation */,
> + true);
> + }
> +
> + /* Wa_14013202645:dg2 */
> + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_B0, STEP_C0) ||
> + IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0))
> + wa_write_or(wal, RT_CTRL, DIS_NULL_QUERY);
>
> if (IS_DG1_GRAPHICS_STEP(i915, STEP_A0, STEP_B0) ||
> IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0)) { diff --git
> a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index b806ad4bdeca..ee39d6bd0f3c 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -502,6 +502,11 @@ static inline bool i915_mmio_reg_valid(i915_reg_t
> reg)
> #define INVALIDATION_BROADCAST_MODE_DIS REG_BIT(12)
> #define GLOBAL_INVALIDATION_MODE REG_BIT(2)
>
> +#define GEN12_GAMSTLB_CTRL _MMIO(0xcf4c)
> +#define CONTROL_BLOCK_CLKGATE_DIS REG_BIT(12)
> +#define EGRESS_BLOCK_CLKGATE_DIS REG_BIT(11)
> +#define TAG_BLOCK_CLKGATE_DIS REG_BIT(7)
> +
> #define GEN12_MERT_MOD_CTRL _MMIO(0xcf28)
> #define FORCE_MISS_FTLB REG_BIT(3)
>
> @@ -777,6 +782,9 @@ static inline bool i915_mmio_reg_valid(i915_reg_t
> reg)
> #define EU_PERF_CNTL5 _MMIO(0xe55c)
> #define EU_PERF_CNTL6 _MMIO(0xe65c)
>
> +#define RT_CTRL _MMIO(0xe530)
> +#define DIS_NULL_QUERY REG_BIT(10)
> +
> /*
> * OA Boolean state
> */
> @@ -2781,6 +2789,9 @@ static inline bool i915_mmio_reg_valid(i915_reg_t
> reg)
> #define VDBOX_CGCTL3F10(base) _MMIO((base) + 0x3f10)
> #define IECPUNIT_CLKGATE_DIS REG_BIT(22)
>
> +#define VDBOX_CGCTL3F18(base) _MMIO((base) + 0x3f18)
> +#define ALNUNIT_CLKGATE_DIS REG_BIT(13)
> +
> #define ERROR_GEN6 _MMIO(0x40a0)
> #define GEN7_ERR_INT _MMIO(0x44040)
> #define ERR_INT_POISON (1 << 31)
> @@ -3124,7 +3135,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t
> reg) #define GEN9_RCS_FE_FSM2 _MMIO(0x22a4)
>
> #define GEN10_CACHE_MODE_SS _MMIO(0xe420)
> -#define FLOAT_BLEND_OPTIMIZATION_ENABLE (1 << 4)
> +#define ENABLE_PREFETCH_INTO_IC REG_BIT(3)
> +#define FLOAT_BLEND_OPTIMIZATION_ENABLE REG_BIT(4)
>
> /* Fuse readout registers for GT */
> #define HSW_PAVP_FUSE1 _MMIO(0x911C)
> @@ -4333,18 +4345,25 @@ enum {
> #define SARBUNIT_CLKGATE_DIS (1 << 5)
> #define RCCUNIT_CLKGATE_DIS (1 << 7)
> #define MSCUNIT_CLKGATE_DIS (1 << 10)
> +#define NODEDSS_CLKGATE_DIS REG_BIT(12)
> #define L3_CLKGATE_DIS REG_BIT(16)
> #define L3_CR2X_CLKGATE_DIS REG_BIT(17)
>
> #define SUBSLICE_UNIT_LEVEL_CLKGATE _MMIO(0x9524)
> -#define GWUNIT_CLKGATE_DIS (1 << 16)
> +#define DSS_ROUTER_CLKGATE_DIS REG_BIT(28)
> +#define GWUNIT_CLKGATE_DIS REG_BIT(16)
>
> #define SUBSLICE_UNIT_LEVEL_CLKGATE2 _MMIO(0x9528)
> #define CPSSUNIT_CLKGATE_DIS REG_BIT(9)
>
> +#define SSMCGCTL9530 _MMIO(0x9530)
> +#define RTFUNIT_CLKGATE_DIS REG_BIT(18)
> +
> #define UNSLICE_UNIT_LEVEL_CLKGATE _MMIO(0x9434)
> #define VFUNIT_CLKGATE_DIS REG_BIT(20)
> -#define TSGUNIT_CLKGATE_DIS REG_BIT(17)
> +#define TSGUNIT_CLKGATE_DIS REG_BIT(17) /* XEHPSDV */
> +#define CG3DDISCFEG_CLKGATE_DIS REG_BIT(17) /* DG2 */
> +#define GAMEDIA_CLKGATE_DIS REG_BIT(11)
> #define HSUNIT_CLKGATE_DIS REG_BIT(8)
> #define VSUNIT_CLKGATE_DIS REG_BIT(3)
>
> @@ -8404,6 +8423,9 @@ enum {
> #define GEN9_CTX_PREEMPT_REG _MMIO(0x2248)
> #define GEN12_DISABLE_POSH_BUSY_FF_DOP_CG REG_BIT(11)
>
> +#define GEN12_CS_DEBUG_MODE1_CCCSUNIT_BE_COMMON
> _MMIO(0x20EC)
> +#define GEN12_REPLAY_MODE_GRANULARITY
> REG_BIT(0)
> +
> #define GEN8_CS_CHICKEN1 _MMIO(0x2580)
> #define GEN9_PREEMPT_3D_OBJECT_LEVEL (1 << 0)
> #define GEN9_PREEMPT_GPGPU_LEVEL(hi, lo) (((hi) << 2) | ((lo) << 1))
> @@ -8427,9 +8449,10 @@ enum {
> #define GEN8_ERRDETBCTRL (1 << 9)
>
> #define GEN11_COMMON_SLICE_CHICKEN3
> _MMIO(0x7304)
> - #define DG1_FLOAT_POINT_BLEND_OPT_STRICT_MODE_EN REG_BIT(12)
> - #define GEN11_BLEND_EMB_FIX_DISABLE_IN_RCC REG_BIT(11)
> - #define GEN12_DISABLE_CPS_AWARE_COLOR_PIPE REG_BIT(9)
> +#define DG1_FLOAT_POINT_BLEND_OPT_STRICT_MODE_EN REG_BIT(12)
> +#define XEHP_DUAL_SIMD8_SEQ_MERGE_DISABLE REG_BIT(12)
> +#define GEN11_BLEND_EMB_FIX_DISABLE_IN_RCC REG_BIT(11)
> +#define GEN12_DISABLE_CPS_AWARE_COLOR_PIPE REG_BIT(9)
>
> #define HIZ_CHICKEN _MMIO(0x7018)
> # define CHV_HZ_8X8_MODE_IN_1X REG_BIT(15)
> @@ -8493,6 +8516,12 @@ enum {
> #define HDC_FORCE_NON_COHERENT (1 << 4)
> #define HDC_BARRIER_PERFORMANCE_DISABLE (1 << 10)
>
> +#define GEN12_HDC_CHICKEN0
> _MMIO(0xE5F0)
> +#define LSC_L1_FLUSH_CTL_3D_DATAPORT_FLUSH_EVENTS_MASK
> REG_GENMASK(13, 11)
> +
> +#define SARB_CHICKEN1 _MMIO(0xe90c)
> +#define COMP_CKN_IN REG_GENMASK(30,
> 29)
> +
> #define GEN8_HDC_CHICKEN1 _MMIO(0x7304)
>
> /* GEN9 chicken */
> @@ -8523,6 +8552,10 @@ enum {
> #define PIXEL_ROUNDING_TRUNC_FB_PASSTHRU (1 << 15)
> #define PER_PIXEL_ALPHA_BYPASS_EN (1 << 7)
>
> +#define VFLSKPD _MMIO(0x62a8)
> +#define DIS_OVER_FETCH_CACHE REG_BIT(1)
> +#define DIS_MULT_MISS_RD_SQUASH REG_BIT(0)
> +
> #define FF_MODE2 _MMIO(0x6604)
> #define FF_MODE2_GS_TIMER_MASK REG_GENMASK(31, 24)
> #define FF_MODE2_GS_TIMER_224
> REG_FIELD_PREP(FF_MODE2_GS_TIMER_MASK, 224)
> @@ -9346,6 +9379,9 @@ enum {
> #define GEN8_SDEUNIT_CLOCK_GATE_DISABLE (1 << 14)
> #define GEN8_HDCUNIT_CLOCK_GATE_DISABLE_HDCREQ (1 << 28)
>
> +#define UNSLCGCTL9430 _MMIO(0x9430)
> +#define MSQDUNIT_CLKGATE_DIS REG_BIT(3)
> +
> #define GEN6_GFXPAUSE _MMIO(0xA000)
> #define GEN6_RPNSWREQ _MMIO(0xA008)
> #define GEN6_TURBO_DISABLE (1 << 31)
> @@ -9661,24 +9697,39 @@ enum {
> #define GEN9_CCS_TLB_PREFETCH_ENABLE (1 << 3)
>
> #define GEN8_ROW_CHICKEN _MMIO(0xe4f0)
> -#define FLOW_CONTROL_ENABLE (1 << 15)
> -#define PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE (1 << 8)
> -#define STALL_DOP_GATING_DISABLE (1 << 5)
> -#define THROTTLE_12_5 (7 << 2)
> -#define DISABLE_EARLY_EOT (1 << 1)
> +#define FLOW_CONTROL_ENABLE REG_BIT(15)
> +#define UGM_BACKUP_MODE REG_BIT(13)
> +#define MDQ_ARBITRATION_MODE REG_BIT(12)
> +#define PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE REG_BIT(8)
> +#define STALL_DOP_GATING_DISABLE REG_BIT(5)
> +#define THROTTLE_12_5 REG_GENMASK(4, 2)
> +#define DISABLE_EARLY_EOT REG_BIT(1)
>
> #define GEN7_ROW_CHICKEN2 _MMIO(0xe4f4)
> +#define GEN12_DISABLE_READ_SUPPRESSION REG_BIT(15)
> #define GEN12_DISABLE_EARLY_READ REG_BIT(14)
> +#define GEN12_ENABLE_LARGE_GRF_MODE REG_BIT(12)
> #define GEN12_PUSH_CONST_DEREF_HOLD_DIS REG_BIT(8)
>
> +#define LSC_CHICKEN_BIT_0 _MMIO(0xe7c8)
> +#define FORCE_1_SUB_MESSAGE_PER_FRAGMENT REG_BIT(15)
> +#define LSC_CHICKEN_BIT_0_UDW _MMIO(0xe7c8 + 4)
> +#define DIS_CHAIN_2XSIMD8 REG_BIT(55 - 32)
> +#define FORCE_SLM_FENCE_SCOPE_TO_TILE REG_BIT(42 - 32)
> +#define FORCE_UGM_FENCE_SCOPE_TO_TILE REG_BIT(41 -
> 32)
> +#define MAXREQS_PER_BANK REG_GENMASK(39 -
> 32, 37 - 32)
> +#define DISABLE_128B_EVICTION_COMMAND_UDW REG_BIT(36 - 32)
> +
> #define GEN7_ROW_CHICKEN2_GT2 _MMIO(0xf4f4)
> #define DOP_CLOCK_GATING_DISABLE (1 << 0)
> #define PUSH_CONSTANT_DEREF_DISABLE (1 << 8)
> #define GEN11_TDL_CLOCK_GATING_FIX_DISABLE (1 << 1)
>
> -#define GEN9_ROW_CHICKEN4 _MMIO(0xe48c)
> -#define GEN12_DISABLE_TDL_PUSH REG_BIT(9)
> -#define GEN11_DIS_PICK_2ND_EU REG_BIT(7)
> +#define GEN9_ROW_CHICKEN4
> _MMIO(0xe48c)
> +#define GEN12_DISABLE_GRF_CLEAR REG_BIT(13)
> +#define GEN12_DISABLE_TDL_PUSH REG_BIT(9)
> +#define GEN11_DIS_PICK_2ND_EU REG_BIT(7)
> +#define GEN12_DISABLE_HDR_PAST_PAYLOAD_HOLD_FIX REG_BIT(4)
>
> #define HSW_ROW_CHICKEN3 _MMIO(0xe49c)
> #define HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE (1 << 6)
> @@ -9693,9 +9744,10 @@ enum {
> #define GEN8_SAMPLER_POWER_BYPASS_DIS (1 << 1)
>
> #define GEN9_HALF_SLICE_CHICKEN7 _MMIO(0xe194)
> -#define GEN9_SAMPLER_HASH_COMPRESSED_READ_ADDR (1 << 8)
> -#define GEN9_ENABLE_YV12_BUGFIX (1 << 4)
> -#define GEN9_ENABLE_GPGPU_PREEMPTION (1 << 2)
> +#define DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA REG_BIT(15)
> +#define GEN9_SAMPLER_HASH_COMPRESSED_READ_ADDR REG_BIT(8)
> +#define GEN9_ENABLE_YV12_BUGFIX REG_BIT(4)
> +#define GEN9_ENABLE_GPGPU_PREEMPTION
> REG_BIT(2)
>
> /* Audio */
> #define G4X_AUD_VID_DID
> _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x62020)
> @@ -12519,12 +12571,17 @@ enum skl_power_gate {
> #define PMFLUSH_GAPL3UNBLOCK (1 << 21)
> #define PMFLUSHDONE_LNEBLK (1 << 22)
>
> +#define XEHP_L3NODEARBCFG _MMIO(0xb0b4)
> +#define XEHP_LNESPARE REG_BIT(19)
> +
> #define GEN12_GLOBAL_MOCS(i) _MMIO(0x4000 + (i) * 4) /* Global
> MOCS regs */
>
> #define GEN12_GSMBASE _MMIO(0x108100)
> #define GEN12_DSMBASE _MMIO(0x1080C0)
>
> #define XEHP_CLOCK_GATE_DIS _MMIO(0x101014)
> +#define SGSI_SIDECLK_DIS REG_BIT(17)
> +#define SGGI_DIS REG_BIT(15)
> #define SGR_DIS REG_BIT(13)
>
> /* gamt regs */
> @@ -12903,4 +12960,7 @@ enum skl_power_gate {
> #define CLKGATE_DIS_MISC _MMIO(0x46534)
> #define CLKGATE_DIS_MISC_DMASC_GATING_DIS REG_BIT(21)
>
> +#define SLICE_COMMON_ECO_CHICKEN1 _MMIO(0x731C)
> +#define MSC_MSAA_REODER_BUF_BYPASS_DISABLE REG_BIT(14)
> +
> #endif /* _I915_REG_H_ */
> diff --git a/drivers/gpu/drm/i915/intel_pm.c
> b/drivers/gpu/drm/i915/intel_pm.c index 16fa3306d83d..a1d9a6ac3e49
> 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -7486,6 +7486,22 @@ static void xehpsdv_init_clock_gating(struct
> drm_i915_private *dev_priv)
> intel_uncore_rmw(&dev_priv->uncore,
> XEHP_CLOCK_GATE_DIS, 0, SGR_DIS); }
>
> +static void dg2_init_clock_gating(struct drm_i915_private *i915) {
> + /* Wa_22010954014:dg2_g10 */
> + if (IS_DG2_G10(i915))
> + intel_uncore_rmw(&i915->uncore, XEHP_CLOCK_GATE_DIS,
> 0,
> + SGSI_SIDECLK_DIS);
> +
> + /*
> + * Wa_14010733611:dg2_g10
> + * Wa_22010146351:dg2_g10
> + */
> + if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0))
> + intel_uncore_rmw(&i915->uncore, XEHP_CLOCK_GATE_DIS,
> 0,
> + SGR_DIS | SGGI_DIS);
> +}
> +
> static void cnp_init_clock_gating(struct drm_i915_private *dev_priv) {
> if (!HAS_PCH_CNP(dev_priv))
> @@ -7896,6 +7912,7 @@ static const struct drm_i915_clock_gating_funcs
> platform##_clock_gating_funcs =
> .init_clock_gating = platform##_init_clock_gating, \
> }
>
> +CG_FUNCS(dg2);
> CG_FUNCS(xehpsdv);
> CG_FUNCS(adlp);
> CG_FUNCS(dg1);
> @@ -7933,7 +7950,9 @@ CG_FUNCS(nop);
> */
> void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv) {
> - if (IS_XEHPSDV(dev_priv))
> + if (IS_DG2(dev_priv))
> + dev_priv->clock_gating_funcs = &dg2_clock_gating_funcs;
> + else if (IS_XEHPSDV(dev_priv))
> dev_priv->clock_gating_funcs =
> &xehpsdv_clock_gating_funcs;
> else if (IS_ALDERLAKE_P(dev_priv))
> dev_priv->clock_gating_funcs = &adlp_clock_gating_funcs;
> --
> 2.33.0
