By doing this, we can dump these workarounds in debugfs for validation (which,
at the moment, we are only able to do for the contexts WAs).
Signed-off-by: Oscar Mateo <oscar.mateo@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.c | 5 +
drivers/gpu/drm/i915/i915_drv.h | 8 +-
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/i915_workarounds.c | 335 ++++++++++++++++++--------------
drivers/gpu/drm/i915/i915_workarounds.h | 1 +
5 files changed, 202 insertions(+), 148 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 66fc156..7830073 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -49,6 +49,7 @@
#include "i915_drv.h"
#include "i915_trace.h"
#include "i915_vgpu.h"
+#include "i915_workarounds.h"
#include "intel_drv.h"
#include "intel_uc.h"
@@ -886,6 +887,10 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv,
BUG_ON(device_info->gen > sizeof(device_info->gen_mask) * BITS_PER_BYTE);
device_info->gen_mask = BIT(device_info->gen - 1);
+ ret = i915_mmio_workarounds_init(dev_priv);
+ if (ret < 0)
+ return ret;
+
spin_lock_init(&dev_priv->irq_lock);
spin_lock_init(&dev_priv->gpu_error.lock);
mutex_init(&dev_priv->backlight_lock);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0bbe128..b042078 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1954,12 +1954,16 @@ struct i915_wa_reg {
u32 mask;
};
-#define I915_MAX_WA_REGS 16
+#define I915_MAX_CTX_WA_REGS 16
+#define I915_MAX_MMIO_WA_REGS 32
struct i915_workarounds {
- struct i915_wa_reg ctx_wa_reg[I915_MAX_WA_REGS];
+ struct i915_wa_reg ctx_wa_reg[I915_MAX_CTX_WA_REGS];
u32 ctx_wa_count;
+ struct i915_wa_reg mmio_wa_reg[I915_MAX_MMIO_WA_REGS];
+ u32 mmio_wa_count;
+
u32 hw_whitelist_count[I915_NUM_ENGINES];
};
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 50e65c9..6b46393 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7042,6 +7042,7 @@ enum {
*/
#define L3_GENERAL_PRIO_CREDITS(x) (((x) >> 1) << 19)
#define L3_HIGH_PRIO_CREDITS(x) (((x) >> 1) << 14)
+#define L3_PRIO_CREDITS_MASK (0x1f << 19) | (0x1f << 14)
#define GEN7_L3CNTLREG1 _MMIO(0xB01C)
#define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C47FF8C
diff --git a/drivers/gpu/drm/i915/i915_workarounds.c b/drivers/gpu/drm/i915/i915_workarounds.c
index 21996e1..7f9e66a 100644
--- a/drivers/gpu/drm/i915/i915_workarounds.c
+++ b/drivers/gpu/drm/i915/i915_workarounds.c
@@ -31,7 +31,7 @@ static int ctx_wa_add(struct drm_i915_private *dev_priv,
{
const u32 idx = dev_priv->workarounds.ctx_wa_count;
- if (WARN_ON(idx >= I915_MAX_WA_REGS))
+ if (WARN_ON(idx >= I915_MAX_CTX_WA_REGS))
return -ENOSPC;
dev_priv->workarounds.ctx_wa_reg[idx].addr = addr;
@@ -509,15 +509,53 @@ int i915_ctx_workarounds_emit(struct drm_i915_gem_request *req)
return 0;
}
-static void bdw_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int mmio_wa_add(struct drm_i915_private *dev_priv,
+ i915_reg_t addr,
+ const u32 mask, const u32 val)
{
+ const u32 idx = dev_priv->workarounds.mmio_wa_count;
+
+ if (WARN_ON(idx >= I915_MAX_MMIO_WA_REGS))
+ return -ENOSPC;
+
+ dev_priv->workarounds.mmio_wa_reg[idx].addr = addr;
+ dev_priv->workarounds.mmio_wa_reg[idx].value = val;
+ dev_priv->workarounds.mmio_wa_reg[idx].mask = mask;
+
+ dev_priv->workarounds.mmio_wa_count++;
+
+ return 0;
+}
+
+#define MMIOWA_REG(addr, mask, val) do { \
+ const int r = mmio_wa_add(dev_priv, (addr), (mask), (val)); \
+ if (r) \
+ return r; \
+ } while (0)
+
+#define MMIOWA_SET_BIT(addr, mask) \
+ MMIOWA_REG(addr, (mask), (mask))
+
+#define MMIOWA_SET_BIT_MSK(addr, mask) \
+ CTXWA_REG(addr, (mask), _MASKED_BIT_ENABLE(mask))
+
+#define MMIOWA_CLR_BIT(addr, mask) \
+ MMIOWA_REG(addr, (mask), 0)
+
+#define MMIOWA_SET_FIELD(addr, mask, value) \
+ MMIOWA_REG(addr, (mask), (value))
+
+static int bdw_mmio_workarounds_init(struct drm_i915_private *dev_priv)
+{
+ return 0;
}
-static void chv_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int chv_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
+ return 0;
}
-static void gen9_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int gen9_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
if (HAS_LLC(dev_priv)) {
/* WaCompressedResourceSamplerPbeMediaNewHashMode:skl,kbl
@@ -525,10 +563,7 @@ static void gen9_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
* Must match Display Engine. See
* WaCompressedResourceDisplayNewHashMode.
*/
- I915_WRITE(MMCD_MISC_CTRL,
- I915_READ(MMCD_MISC_CTRL) |
- MMCD_PCLA |
- MMCD_HOTSPOT_EN);
+ MMIOWA_SET_BIT(MMCD_MISC_CTRL, MMCD_PCLA | MMCD_HOTSPOT_EN);
/*
* WaCompressedResourceDisplayNewHashMode:skl,kbl
@@ -537,293 +572,301 @@ static void gen9_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
* Must match Sampler, Pixel Back End, and Media. See
* WaCompressedResourceSamplerPbeMediaNewHashMode.
*/
- I915_WRITE(CHICKEN_PAR1_1,
- I915_READ(CHICKEN_PAR1_1) |
- SKL_DE_COMPRESSED_HASH_MODE);
+ MMIOWA_SET_BIT(CHICKEN_PAR1_1, SKL_DE_COMPRESSED_HASH_MODE);
}
/* See Bspec note for PSR2_CTL bit 31, Wa#828:skl,bxt,kbl,cfl */
- I915_WRITE(CHICKEN_PAR1_1,
- I915_READ(CHICKEN_PAR1_1) | SKL_EDP_PSR_FIX_RDWRAP);
+ MMIOWA_SET_BIT(CHICKEN_PAR1_1, SKL_EDP_PSR_FIX_RDWRAP);
- I915_WRITE(GEN8_CONFIG0,
- I915_READ(GEN8_CONFIG0) | GEN9_DEFAULT_FIXES);
+ MMIOWA_SET_BIT(GEN8_CONFIG0, GEN9_DEFAULT_FIXES);
/* WaEnableChickenDCPR:skl,bxt,kbl,glk,cfl */
- I915_WRITE(GEN8_CHICKEN_DCPR_1,
- I915_READ(GEN8_CHICKEN_DCPR_1) | MASK_WAKEMEM);
+ MMIOWA_SET_BIT(GEN8_CHICKEN_DCPR_1, MASK_WAKEMEM);
/* WaFbcTurnOffFbcWatermark:skl,bxt,kbl,cfl */
/* WaFbcWakeMemOn:skl,bxt,kbl,glk,cfl */
- I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) |
- DISP_FBC_WM_DIS |
- DISP_FBC_MEMORY_WAKE);
+ MMIOWA_SET_BIT(DISP_ARB_CTL, DISP_FBC_WM_DIS | DISP_FBC_MEMORY_WAKE);
/* WaFbcHighMemBwCorruptionAvoidance:skl,bxt,kbl,cfl */
- I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
- ILK_DPFC_DISABLE_DUMMY0);
+ MMIOWA_SET_BIT(ILK_DPFC_CHICKEN, ILK_DPFC_DISABLE_DUMMY0);
/* WaContextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl,glk,cfl */
- I915_WRITE(GEN9_CSFE_CHICKEN1_RCS,
- _MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE));
+ MMIOWA_SET_BIT_MSK(GEN9_CSFE_CHICKEN1_RCS,
+ GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE);
/* WaEnableLbsSlaRetryTimerDecrement:skl,bxt,kbl,glk,cfl */
- I915_WRITE(BDW_SCRATCH1, I915_READ(BDW_SCRATCH1) |
- GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE);
+ MMIOWA_SET_BIT(BDW_SCRATCH1, GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE);
/* WaDisableKillLogic:bxt,skl,kbl */
if (!IS_COFFEELAKE(dev_priv))
- I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
- ECOCHK_DIS_TLB);
+ MMIOWA_SET_BIT(GAM_ECOCHK, ECOCHK_DIS_TLB);
/* WaDisableHDCInvalidation:skl,bxt,kbl,cfl */
- I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
- BDW_DISABLE_HDC_INVALIDATION);
+ MMIOWA_SET_BIT(GAM_ECOCHK, BDW_DISABLE_HDC_INVALIDATION);
/* WaOCLCoherentLineFlush:skl,bxt,kbl,cfl */
- I915_WRITE(GEN8_L3SQCREG4, (I915_READ(GEN8_L3SQCREG4) |
- GEN8_LQSC_FLUSH_COHERENT_LINES));
+ MMIOWA_SET_BIT(GEN8_L3SQCREG4, GEN8_LQSC_FLUSH_COHERENT_LINES);
/* WaEnablePreemptionGranularityControlByUMD:skl,bxt,kbl,cfl,[cnl] */
- I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1,
- _MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL));
+ MMIOWA_SET_BIT_MSK(GEN7_FF_SLICE_CS_CHICKEN1,
+ GEN9_FFSC_PERCTX_PREEMPT_CTRL);
+
+ return 0;
}
-static void skl_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int skl_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
- gen9_mmio_workarounds_apply(dev_priv);
+ int ret;
+
+ ret = gen9_mmio_workarounds_init(dev_priv);
+ if (ret)
+ return ret;
/* WaDisableDopClockGating */
- I915_WRITE(GEN7_MISCCPCTL, I915_READ(GEN7_MISCCPCTL)
- & ~GEN7_DOP_CLOCK_GATE_ENABLE);
+ MMIOWA_CLR_BIT(GEN7_MISCCPCTL, GEN7_DOP_CLOCK_GATE_ENABLE);
/* WAC6entrylatency:skl */
- I915_WRITE(FBC_LLC_READ_CTRL, I915_READ(FBC_LLC_READ_CTRL) |
- FBC_LLC_FULLY_OPEN);
+ MMIOWA_SET_BIT(FBC_LLC_READ_CTRL, FBC_LLC_FULLY_OPEN);
/* WaFbcNukeOnHostModify:skl */
- I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
- ILK_DPFC_NUKE_ON_ANY_MODIFICATION);
+ MMIOWA_SET_BIT(ILK_DPFC_CHICKEN, ILK_DPFC_NUKE_ON_ANY_MODIFICATION);
/* WaEnableGapsTsvCreditFix:skl */
- I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) |
- GEN9_GAPS_TSV_CREDIT_DISABLE));
+ MMIOWA_SET_BIT(GEN8_GARBCNTL, GEN9_GAPS_TSV_CREDIT_DISABLE);
/* WaDisableGafsUnitClkGating:skl */
- I915_WRITE(GEN7_UCGCTL4, (I915_READ(GEN7_UCGCTL4) |
- GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE));
+ MMIOWA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
/* WaInPlaceDecompressionHang:skl */
if (IS_SKL_REVID(dev_priv, SKL_REVID_H0, REVID_FOREVER))
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- (I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS));
+ MMIOWA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+
+ return 0;
}
-static void bxt_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int bxt_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
- gen9_mmio_workarounds_apply(dev_priv);
+ int ret;
+
+ ret = gen9_mmio_workarounds_init(dev_priv);
+ if (ret)
+ return ret;
/* WaDisableSDEUnitClockGating:bxt */
- I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
- GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
+ MMIOWA_SET_BIT(GEN8_UCGCTL6, GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
/*
* FIXME:
* GEN8_HDCUNIT_CLOCK_GATE_DISABLE_HDCREQ applies on 3x6 GT SKUs only.
*/
- I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
- GEN8_HDCUNIT_CLOCK_GATE_DISABLE_HDCREQ);
+ MMIOWA_SET_BIT(GEN8_UCGCTL6, GEN8_HDCUNIT_CLOCK_GATE_DISABLE_HDCREQ);
/*
* Wa: Backlight PWM may stop in the asserted state, causing backlight
* to stay fully on.
*/
- I915_WRITE(GEN9_CLKGATE_DIS_0, I915_READ(GEN9_CLKGATE_DIS_0) |
- PWM1_GATING_DIS | PWM2_GATING_DIS);
+ MMIOWA_SET_BIT(GEN9_CLKGATE_DIS_0, PWM1_GATING_DIS | PWM2_GATING_DIS);
/* WaStoreMultiplePTEenable:bxt */
/* This is a requirement according to Hardware specification */
if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1))
- I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_TLBPF);
+ MMIOWA_SET_BIT(TILECTL, TILECTL_TLBPF);
/* WaSetClckGatingDisableMedia:bxt */
if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) {
- I915_WRITE(GEN7_MISCCPCTL, (I915_READ(GEN7_MISCCPCTL) &
- ~GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE));
+ MMIOWA_CLR_BIT(GEN7_MISCCPCTL, GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE);
}
/* WaDisablePooledEuLoadBalancingFix:bxt */
if (IS_BXT_REVID(dev_priv, BXT_REVID_B0, REVID_FOREVER)) {
- I915_WRITE(FF_SLICE_CS_CHICKEN2,
- _MASKED_BIT_ENABLE(GEN9_POOLED_EU_LOAD_BALANCING_FIX_DISABLE));
+ MMIOWA_SET_BIT_MSK(FF_SLICE_CS_CHICKEN2,
+ GEN9_POOLED_EU_LOAD_BALANCING_FIX_DISABLE);
}
/* WaProgramL3SqcReg1DefaultForPerf:bxt */
if (IS_BXT_REVID(dev_priv, BXT_REVID_B0, REVID_FOREVER))
- I915_WRITE(GEN8_L3SQCREG1, L3_GENERAL_PRIO_CREDITS(62) |
- L3_HIGH_PRIO_CREDITS(2));
+ MMIOWA_SET_FIELD(GEN8_L3SQCREG1, L3_PRIO_CREDITS_MASK,
+ L3_GENERAL_PRIO_CREDITS(62) |
+ L3_HIGH_PRIO_CREDITS(2));
/* WaInPlaceDecompressionHang:bxt */
if (IS_BXT_REVID(dev_priv, BXT_REVID_C0, REVID_FOREVER))
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- (I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS));
+ MMIOWA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+
+ return 0;
}
-static void kbl_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int kbl_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
- gen9_mmio_workarounds_apply(dev_priv);
+ int ret;
+
+ ret = gen9_mmio_workarounds_init(dev_priv);
+ if (ret)
+ return ret;
/* WaDisableSDEUnitClockGating:kbl */
if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_B0))
- I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
- GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
+ MMIOWA_SET_BIT(GEN8_UCGCTL6, GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
/* WaDisableGamClockGating:kbl */
if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_B0))
- I915_WRITE(GEN6_UCGCTL1, I915_READ(GEN6_UCGCTL1) |
- GEN6_GAMUNIT_CLOCK_GATE_DISABLE);
+ MMIOWA_SET_BIT(GEN6_UCGCTL1, GEN6_GAMUNIT_CLOCK_GATE_DISABLE);
/* WaFbcNukeOnHostModify:kbl */
- I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
- ILK_DPFC_NUKE_ON_ANY_MODIFICATION);
+ MMIOWA_SET_BIT(ILK_DPFC_CHICKEN, ILK_DPFC_NUKE_ON_ANY_MODIFICATION);
/* WaEnableGapsTsvCreditFix:kbl */
- I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) |
- GEN9_GAPS_TSV_CREDIT_DISABLE));
+ MMIOWA_SET_BIT(GEN8_GARBCNTL, GEN9_GAPS_TSV_CREDIT_DISABLE);
/* WaDisableDynamicCreditSharing:kbl */
if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_B0))
- I915_WRITE(GAMT_CHKN_BIT_REG,
- (I915_READ(GAMT_CHKN_BIT_REG) |
- GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING));
+ MMIOWA_SET_BIT(GAMT_CHKN_BIT_REG,
+ GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING);
/* WaDisableGafsUnitClkGating:kbl */
- I915_WRITE(GEN7_UCGCTL4, (I915_READ(GEN7_UCGCTL4) |
- GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE));
+ MMIOWA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
/* WaInPlaceDecompressionHang:kbl */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- (I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS));
+ MMIOWA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+
+ return 0;
}
-static void glk_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int glk_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
- u32 val;
+ int ret;
- gen9_mmio_workarounds_apply(dev_priv);
+ ret = gen9_mmio_workarounds_init(dev_priv);
+ if (ret)
+ return ret;
/*
* WaDisablePWMClockGating:glk
* Backlight PWM may stop in the asserted state, causing backlight
* to stay fully on.
*/
- I915_WRITE(GEN9_CLKGATE_DIS_0, I915_READ(GEN9_CLKGATE_DIS_0) |
- PWM1_GATING_DIS | PWM2_GATING_DIS);
+ MMIOWA_SET_BIT(GEN9_CLKGATE_DIS_0, PWM1_GATING_DIS | PWM2_GATING_DIS);
/* WaDDIIOTimeout:glk */
- if (IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1)) {
- u32 val = I915_READ(CHICKEN_MISC_2);
- val &= ~(GLK_CL0_PWR_DOWN |
- GLK_CL1_PWR_DOWN |
- GLK_CL2_PWR_DOWN);
- I915_WRITE(CHICKEN_MISC_2, val);
- }
+ if (IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1))
+ MMIOWA_CLR_BIT(CHICKEN_MISC_2,
+ GLK_CL0_PWR_DOWN |
+ GLK_CL1_PWR_DOWN |
+ GLK_CL2_PWR_DOWN);
/* Display WA #1133: WaFbcSkipSegments:glk */
- val = I915_READ(ILK_DPFC_CHICKEN);
- val &= ~GLK_SKIP_SEG_COUNT_MASK;
- val |= GLK_SKIP_SEG_EN | GLK_SKIP_SEG_COUNT(1);
- I915_WRITE(ILK_DPFC_CHICKEN, val);
+ MMIOWA_SET_FIELD(ILK_DPFC_CHICKEN, GLK_SKIP_SEG_COUNT_MASK,
+ GLK_SKIP_SEG_EN | GLK_SKIP_SEG_COUNT(1));
+
+ return 0;
}
-static void cfl_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int cfl_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
- gen9_mmio_workarounds_apply(dev_priv);
+ int ret;
+
+ ret = gen9_mmio_workarounds_init(dev_priv);
+ if (ret)
+ return ret;
/* WaFbcNukeOnHostModify:cfl */
- I915_WRITE(ILK_DPFC_CHICKEN,
- I915_READ(ILK_DPFC_CHICKEN) |
- ILK_DPFC_NUKE_ON_ANY_MODIFICATION);
+ MMIOWA_SET_BIT(ILK_DPFC_CHICKEN, ILK_DPFC_NUKE_ON_ANY_MODIFICATION);
/* WaEnableGapsTsvCreditFix:cfl */
- I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) |
- GEN9_GAPS_TSV_CREDIT_DISABLE));
+ MMIOWA_SET_BIT(GEN8_GARBCNTL, GEN9_GAPS_TSV_CREDIT_DISABLE);
/* WaDisableGafsUnitClkGating:cfl */
- I915_WRITE(GEN7_UCGCTL4, (I915_READ(GEN7_UCGCTL4) |
- GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE));
+ MMIOWA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
/* WaInPlaceDecompressionHang:cfl */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- (I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS));
+ MMIOWA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+
+ return 0;
}
-static void cnl_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+static int cnl_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
- u32 val;
-
/* This is not an Wa. Enable for better image quality */
- I915_WRITE(_3D_CHICKEN3,
- _MASKED_BIT_ENABLE(_3D_CHICKEN3_AA_LINE_QUALITY_FIX_ENABLE));
+ MMIOWA_SET_BIT_MSK(_3D_CHICKEN3, _3D_CHICKEN3_AA_LINE_QUALITY_FIX_ENABLE);
/* WaEnableChickenDCPR:cnl */
- I915_WRITE(GEN8_CHICKEN_DCPR_1,
- I915_READ(GEN8_CHICKEN_DCPR_1) | MASK_WAKEMEM);
+ MMIOWA_SET_BIT(GEN8_CHICKEN_DCPR_1, MASK_WAKEMEM);
/* WaFbcWakeMemOn:cnl */
- I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) |
- DISP_FBC_MEMORY_WAKE);
+ MMIOWA_SET_BIT(DISP_ARB_CTL, DISP_FBC_MEMORY_WAKE);
/* WaSarbUnitClockGatingDisable:cnl (pre-prod) */
if (IS_CNL_REVID(dev_priv, CNL_REVID_A0, CNL_REVID_B0))
- I915_WRITE(SLICE_UNIT_LEVEL_CLKGATE,
- I915_READ(SLICE_UNIT_LEVEL_CLKGATE) |
- SARBUNIT_CLKGATE_DIS);
+ MMIOWA_SET_BIT(SLICE_UNIT_LEVEL_CLKGATE, SARBUNIT_CLKGATE_DIS);
/* Display WA #1133: WaFbcSkipSegments:cnl */
- val = I915_READ(ILK_DPFC_CHICKEN);
- val &= ~GLK_SKIP_SEG_COUNT_MASK;
- val |= GLK_SKIP_SEG_EN | GLK_SKIP_SEG_COUNT(1);
- I915_WRITE(ILK_DPFC_CHICKEN, val);
+ MMIOWA_SET_FIELD(ILK_DPFC_CHICKEN, GLK_SKIP_SEG_COUNT_MASK,
+ GLK_SKIP_SEG_EN | GLK_SKIP_SEG_COUNT(1));
/* WaDisableI2mCycleOnWRPort:cnl (pre-prod) */
if (IS_CNL_REVID(dev_priv, CNL_REVID_B0, CNL_REVID_B0))
- I915_WRITE(GAMT_CHKN_BIT_REG,
- (I915_READ(GAMT_CHKN_BIT_REG) |
- GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT));
+ MMIOWA_SET_BIT(GAMT_CHKN_BIT_REG,
+ GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT);
/* WaInPlaceDecompressionHang:cnl */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- (I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS));
+ MMIOWA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
/* WaEnablePreemptionGranularityControlByUMD:cnl */
- I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1,
- _MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL));
+ MMIOWA_SET_BIT_MSK(GEN7_FF_SLICE_CS_CHICKEN1,
+ GEN9_FFSC_PERCTX_PREEMPT_CTRL);
+
+ return 0;
}
-void i915_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+int i915_mmio_workarounds_init(struct drm_i915_private *dev_priv)
{
+ int err;
+
+ dev_priv->workarounds.mmio_wa_count = 0;
+
if (IS_BROADWELL(dev_priv))
- bdw_mmio_workarounds_apply(dev_priv);
+ err = bdw_mmio_workarounds_init(dev_priv);
else if (IS_CHERRYVIEW(dev_priv))
- chv_mmio_workarounds_apply(dev_priv);
+ err = chv_mmio_workarounds_init(dev_priv);
else if (IS_SKYLAKE(dev_priv))
- skl_mmio_workarounds_apply(dev_priv);
+ err = skl_mmio_workarounds_init(dev_priv);
else if (IS_BROXTON(dev_priv))
- bxt_mmio_workarounds_apply(dev_priv);
+ err = bxt_mmio_workarounds_init(dev_priv);
else if (IS_KABYLAKE(dev_priv))
- kbl_mmio_workarounds_apply(dev_priv);
+ err = kbl_mmio_workarounds_init(dev_priv);
else if (IS_GEMINILAKE(dev_priv))
- glk_mmio_workarounds_apply(dev_priv);
+ err = glk_mmio_workarounds_init(dev_priv);
else if (IS_COFFEELAKE(dev_priv))
- cfl_mmio_workarounds_apply(dev_priv);
+ err = cfl_mmio_workarounds_init(dev_priv);
else if (IS_CANNONLAKE(dev_priv))
- cnl_mmio_workarounds_apply(dev_priv);
+ err = cnl_mmio_workarounds_init(dev_priv);
+ else
+ err = 0;
+ if (err)
+ return err;
+
+ DRM_DEBUG_DRIVER("Number of MMIO w/a: %d\n",
+ dev_priv->workarounds.mmio_wa_count);
+ return 0;
+}
+
+void i915_mmio_workarounds_apply(struct drm_i915_private *dev_priv)
+{
+ struct i915_workarounds *w = &dev_priv->workarounds;
+ int i;
+
+ for (i = 0; i < w->mmio_wa_count; i++) {
+ i915_reg_t addr = w->mmio_wa_reg[i].addr;
+ u32 value = w->mmio_wa_reg[i].value;
+ u32 mask = w->mmio_wa_reg[i].mask;
+
+ I915_WRITE(addr, (I915_READ(addr) & ~mask) | value);
+ }
}
static int wa_ring_whitelist_reg(struct intel_engine_cs *engine,
diff --git a/drivers/gpu/drm/i915/i915_workarounds.h b/drivers/gpu/drm/i915/i915_workarounds.h
index 3944432..1ffe13a 100644
--- a/drivers/gpu/drm/i915/i915_workarounds.h
+++ b/drivers/gpu/drm/i915/i915_workarounds.h
@@ -28,6 +28,7 @@
int i915_ctx_workarounds_init(struct drm_i915_private *dev_priv);
int i915_ctx_workarounds_emit(struct drm_i915_gem_request *req);
+int i915_mmio_workarounds_init(struct drm_i915_private *dev_priv);
void i915_mmio_workarounds_apply(struct drm_i915_private *dev_priv);
int i915_whitelist_workarounds_apply(struct intel_engine_cs *engine);
--
1.9.1
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