[Intel-gfx] [PATCH 1/3] drm/i915/xehpsdv: Add initial workarounds
Matt Roper
matthew.d.roper at intel.com
Tue Nov 2 22:25:09 UTC 2021
From: Stuart Summers <stuart.summers at intel.com>
Add the initial set of workarounds for Xe_HP SDV.
There are some additional workarounds specific to the compute engines
that we're holding back for now. Those will be added later, after
general compute engine support lands.
Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: Stuart Summers <stuart.summers at intel.com>
Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 94 ++++++++++++++++++---
drivers/gpu/drm/i915/i915_reg.h | 53 ++++++++++++
drivers/gpu/drm/i915/intel_pm.c | 12 ++-
3 files changed, 146 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 45936f624a1e..4aaa210fc003 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -730,7 +730,9 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs *engine,
if (engine->class != RENDER_CLASS)
goto done;
- if (IS_DG1(i915))
+ if (IS_XEHPSDV(i915))
+ ; /* noop; none at this time */
+ else if (IS_DG1(i915))
dg1_ctx_workarounds_init(engine, wal);
else if (GRAPHICS_VER(i915) == 12)
gen12_ctx_workarounds_init(engine, wal);
@@ -1277,7 +1279,68 @@ dg1_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
static void
xehpsdv_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
{
+ struct drm_i915_private *i915 = gt->i915;
+
xehp_init_mcr(gt, wal);
+
+ /* Wa_1409757795:xehpsdv */
+ wa_write_or(wal, SCCGCTL94DC, CG3DDISURB);
+
+ /* Wa_18011725039:xehpsdv */
+ if (IS_XEHPSDV_GRAPHICS_STEP(i915, STEP_A1, STEP_B0)) {
+ wa_masked_dis(wal, MLTICTXCTL, TDONRENDER);
+ wa_write_or(wal, L3SQCREG1_CCS0, FLUSHALLNONCOH);
+ }
+
+ /* Wa_16011155590:xehpsdv */
+ if (IS_XEHPSDV_GRAPHICS_STEP(i915, STEP_A0, STEP_B0))
+ wa_write_or(wal, UNSLICE_UNIT_LEVEL_CLKGATE,
+ TSGUNIT_CLKGATE_DIS);
+
+ /* Wa_14011780169:xehpsdv */
+ if (IS_XEHPSDV_GRAPHICS_STEP(i915, STEP_B0, STEP_FOREVER)) {
+ 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_14012362059:xehpsdv */
+ wa_write_or(wal, GEN12_MERT_MOD_CTRL, FORCE_MISS_FTLB);
+
+ /* Wa_16012725990:xehpsdv */
+ if (IS_XEHPSDV_GRAPHICS_STEP(i915, STEP_A1, STEP_FOREVER))
+ wa_write_or(wal, UNSLICE_UNIT_LEVEL_CLKGATE, VFUNIT_CLKGATE_DIS);
+
+ /* Wa_14011060649:xehpsdv */
+ wa_14011060649(gt, wal);
+
+ /* Wa_14014368820:xehpsdv */
+ wa_write_or(wal, GEN12_GAMCNTRL_CTRL, INVALIDATION_BROADCAST_MODE_DIS |
+ GLOBAL_INVALIDATION_MODE);
}
static void
@@ -1559,7 +1622,7 @@ static void cfl_whitelist_build(struct intel_engine_cs *engine)
RING_FORCE_TO_NONPRIV_RANGE_4);
}
-static void cml_whitelist_build(struct intel_engine_cs *engine)
+static void allow_read_ctx_timestamp(struct intel_engine_cs *engine)
{
struct i915_wa_list *w = &engine->whitelist;
@@ -1567,6 +1630,11 @@ static void cml_whitelist_build(struct intel_engine_cs *engine)
whitelist_reg_ext(w,
RING_CTX_TIMESTAMP(engine->mmio_base),
RING_FORCE_TO_NONPRIV_ACCESS_RD);
+}
+
+static void cml_whitelist_build(struct intel_engine_cs *engine)
+{
+ allow_read_ctx_timestamp(engine);
cfl_whitelist_build(engine);
}
@@ -1575,6 +1643,8 @@ static void icl_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:
/* WaAllowUMDToModifyHalfSliceChicken7:icl */
@@ -1610,15 +1680,9 @@ static void icl_whitelist_build(struct intel_engine_cs *engine)
/* hucStatus2RegOffset */
whitelist_reg_ext(w, _MMIO(0x23B0 + engine->mmio_base),
RING_FORCE_TO_NONPRIV_ACCESS_RD);
- whitelist_reg_ext(w,
- RING_CTX_TIMESTAMP(engine->mmio_base),
- RING_FORCE_TO_NONPRIV_ACCESS_RD);
break;
default:
- whitelist_reg_ext(w,
- RING_CTX_TIMESTAMP(engine->mmio_base),
- RING_FORCE_TO_NONPRIV_ACCESS_RD);
break;
}
}
@@ -1627,6 +1691,8 @@ static void tgl_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:
/*
@@ -1650,9 +1716,6 @@ static void tgl_whitelist_build(struct intel_engine_cs *engine)
whitelist_reg(w, HIZ_CHICKEN);
break;
default:
- whitelist_reg_ext(w,
- RING_CTX_TIMESTAMP(engine->mmio_base),
- RING_FORCE_TO_NONPRIV_ACCESS_RD);
break;
}
}
@@ -1671,6 +1734,11 @@ static void dg1_whitelist_build(struct intel_engine_cs *engine)
RING_FORCE_TO_NONPRIV_ACCESS_RD);
}
+static void xehpsdv_whitelist_build(struct intel_engine_cs *engine)
+{
+ allow_read_ctx_timestamp(engine);
+}
+
void intel_engine_init_whitelist(struct intel_engine_cs *engine)
{
struct drm_i915_private *i915 = engine->i915;
@@ -1678,7 +1746,9 @@ void intel_engine_init_whitelist(struct intel_engine_cs *engine)
wa_init_start(w, "whitelist", engine->name);
- if (IS_DG1(i915))
+ if (IS_XEHPSDV(i915))
+ xehpsdv_whitelist_build(engine);
+ else if (IS_DG1(i915))
dg1_whitelist_build(engine);
else if (GRAPHICS_VER(i915) == 12)
tgl_whitelist_build(engine);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b456920555b7..b806ad4bdeca 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -498,6 +498,13 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define ECOBITS_PPGTT_CACHE64B (3 << 8)
#define ECOBITS_PPGTT_CACHE4B (0 << 8)
+#define GEN12_GAMCNTRL_CTRL _MMIO(0xcf54)
+#define INVALIDATION_BROADCAST_MODE_DIS REG_BIT(12)
+#define GLOBAL_INVALIDATION_MODE REG_BIT(2)
+
+#define GEN12_MERT_MOD_CTRL _MMIO(0xcf28)
+#define FORCE_MISS_FTLB REG_BIT(3)
+
#define GAB_CTL _MMIO(0x24000)
#define GAB_CTL_CONT_AFTER_PAGEFAULT (1 << 8)
@@ -2872,6 +2879,15 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE (1 << 2)
#define GEN11_ENABLE_32_PLANE_MODE (1 << 7)
+#define SCCGCTL94DC _MMIO(0x94dc)
+#define CG3DDISURB REG_BIT(14)
+
+#define MLTICTXCTL _MMIO(0xb170)
+#define TDONRENDER REG_BIT(2)
+
+#define L3SQCREG1_CCS0 _MMIO(0xb200)
+#define FLUSHALLNONCOH REG_BIT(5)
+
/* WaClearTdlStateAckDirtyBits */
#define GEN8_STATE_ACK _MMIO(0x20F0)
#define GEN9_STATE_ACK_SLICE1 _MMIO(0x20F8)
@@ -4280,6 +4296,39 @@ enum {
/*
* GEN10 clock gating regs
*/
+
+#define UNSLCGCTL9440 _MMIO(0x9440)
+#define GAMTLBOACS_CLKGATE_DIS REG_BIT(28)
+#define GAMTLBVDBOX5_CLKGATE_DIS REG_BIT(27)
+#define GAMTLBVDBOX6_CLKGATE_DIS REG_BIT(26)
+#define GAMTLBVDBOX3_CLKGATE_DIS REG_BIT(24)
+#define GAMTLBVDBOX4_CLKGATE_DIS REG_BIT(23)
+#define GAMTLBVDBOX7_CLKGATE_DIS REG_BIT(22)
+#define GAMTLBVDBOX2_CLKGATE_DIS REG_BIT(21)
+#define GAMTLBVDBOX0_CLKGATE_DIS REG_BIT(17)
+#define GAMTLBKCR_CLKGATE_DIS REG_BIT(16)
+#define GAMTLBGUC_CLKGATE_DIS REG_BIT(15)
+#define GAMTLBBLT_CLKGATE_DIS REG_BIT(14)
+#define GAMTLBVDBOX1_CLKGATE_DIS REG_BIT(6)
+
+#define UNSLCGCTL9444 _MMIO(0x9444)
+#define GAMTLBGFXA0_CLKGATE_DIS REG_BIT(30)
+#define GAMTLBGFXA1_CLKGATE_DIS REG_BIT(29)
+#define GAMTLBCOMPA0_CLKGATE_DIS REG_BIT(28)
+#define GAMTLBCOMPA1_CLKGATE_DIS REG_BIT(27)
+#define GAMTLBCOMPB0_CLKGATE_DIS REG_BIT(26)
+#define GAMTLBCOMPB1_CLKGATE_DIS REG_BIT(25)
+#define GAMTLBCOMPC0_CLKGATE_DIS REG_BIT(24)
+#define GAMTLBCOMPC1_CLKGATE_DIS REG_BIT(23)
+#define GAMTLBCOMPD0_CLKGATE_DIS REG_BIT(22)
+#define GAMTLBCOMPD1_CLKGATE_DIS REG_BIT(21)
+#define GAMTLBMERT_CLKGATE_DIS REG_BIT(20)
+#define GAMTLBVEBOX3_CLKGATE_DIS REG_BIT(19)
+#define GAMTLBVEBOX2_CLKGATE_DIS REG_BIT(18)
+#define GAMTLBVEBOX1_CLKGATE_DIS REG_BIT(17)
+#define GAMTLBVEBOX0_CLKGATE_DIS REG_BIT(16)
+#define LTCDD_CLKGATE_DIS REG_BIT(10)
+
#define SLICE_UNIT_LEVEL_CLKGATE _MMIO(0x94d4)
#define SARBUNIT_CLKGATE_DIS (1 << 5)
#define RCCUNIT_CLKGATE_DIS (1 << 7)
@@ -4295,6 +4344,7 @@ enum {
#define UNSLICE_UNIT_LEVEL_CLKGATE _MMIO(0x9434)
#define VFUNIT_CLKGATE_DIS REG_BIT(20)
+#define TSGUNIT_CLKGATE_DIS REG_BIT(17)
#define HSUNIT_CLKGATE_DIS REG_BIT(8)
#define VSUNIT_CLKGATE_DIS REG_BIT(3)
@@ -12474,6 +12524,9 @@ enum skl_power_gate {
#define GEN12_GSMBASE _MMIO(0x108100)
#define GEN12_DSMBASE _MMIO(0x1080C0)
+#define XEHP_CLOCK_GATE_DIS _MMIO(0x101014)
+#define SGR_DIS REG_BIT(13)
+
/* gamt regs */
#define GEN8_L3_LRA_1_GPGPU _MMIO(0x4dd4)
#define GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_BDW 0x67F1427F /* max/min for LRA1/2 */
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 59adf0ce6719..16fa3306d83d 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7479,6 +7479,13 @@ static void dg1_init_clock_gating(struct drm_i915_private *dev_priv)
DPT_GATING_DIS);
}
+static void xehpsdv_init_clock_gating(struct drm_i915_private *dev_priv)
+{
+ /* Wa_22010146351:xehpsdv */
+ if (IS_XEHPSDV_GRAPHICS_STEP(dev_priv, STEP_A0, STEP_B0))
+ intel_uncore_rmw(&dev_priv->uncore, XEHP_CLOCK_GATE_DIS, 0, SGR_DIS);
+}
+
static void cnp_init_clock_gating(struct drm_i915_private *dev_priv)
{
if (!HAS_PCH_CNP(dev_priv))
@@ -7889,6 +7896,7 @@ static const struct drm_i915_clock_gating_funcs platform##_clock_gating_funcs =
.init_clock_gating = platform##_init_clock_gating, \
}
+CG_FUNCS(xehpsdv);
CG_FUNCS(adlp);
CG_FUNCS(dg1);
CG_FUNCS(gen12lp);
@@ -7925,7 +7933,9 @@ CG_FUNCS(nop);
*/
void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
{
- if (IS_ALDERLAKE_P(dev_priv))
+ 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;
else if (IS_DG1(dev_priv))
dev_priv->clock_gating_funcs = &dg1_clock_gating_funcs;
--
2.33.0
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