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| author | Oscar Mateo <oscar.mateo@intel.com> | 2018-05-08 14:29:27 -0700 |
|---|---|---|
| committer | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2018-05-11 15:55:35 +0300 |
| commit | f4a357140a5693bfb0ab4e6608b7118a288a9ba9 (patch) | |
| tree | 1e20407b4359a031306d85dbf2daba489bad346e /drivers/gpu | |
| parent | d41bab687999793d7331b7b8906dca7e1aeb64c7 (diff) | |
| download | op-kernel-dev-f4a357140a5693bfb0ab4e6608b7118a288a9ba9.zip op-kernel-dev-f4a357140a5693bfb0ab4e6608b7118a288a9ba9.tar.gz | |
drm/i915/icl: WaModifyGamTlbPartitioning
Adjust default GAM TLB partitioning for performance reasons.
v2: Only touch the bits that we really need
v3: Rebased on top of the WA refactoring
v4:
- Added References (Mika)
- Rebased
v5:
- Rebased
- C, not lisp (Chris)
- Correct reference number (Mika)
References: HSDES#220160670
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1525814984-20039-6-git-send-email-oscar.mateo@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_workarounds.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 81f1a8c..7fe505c 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -8263,6 +8263,11 @@ enum { #define GEN10_DFR_RATIO_EN_AND_CHICKEN _MMIO(0x9550) #define DFR_DISABLE (1 << 9) +#define GEN11_GACB_PERF_CTRL _MMIO(0x4B80) +#define GEN11_HASH_CTRL_MASK (0x3 << 12 | 0xf << 0) +#define GEN11_HASH_CTRL_BIT0 (1 << 0) +#define GEN11_HASH_CTRL_BIT4 (1 << 12) + /* IVYBRIDGE DPF */ #define GEN7_L3CDERRST1(slice) _MMIO(0xB008 + (slice) * 0x200) /* L3CD Error Status 1 */ #define GEN7_L3CDERRST1_ROW_MASK (0x7ff<<14) diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c index 3b03729..2561c55 100644 --- a/drivers/gpu/drm/i915/intel_workarounds.c +++ b/drivers/gpu/drm/i915/intel_workarounds.c @@ -715,6 +715,11 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv) I915_WRITE(GEN11_GLBLINVL, (I915_READ(GEN11_GLBLINVL) & ~GEN11_BANK_HASH_ADDR_EXCL_MASK) | GEN11_BANK_HASH_ADDR_EXCL_BIT0); + + /* WaModifyGamTlbPartitioning:icl */ + I915_WRITE(GEN11_GACB_PERF_CTRL, + (I915_READ(GEN11_GACB_PERF_CTRL) & ~GEN11_HASH_CTRL_MASK) | + GEN11_HASH_CTRL_BIT0 | GEN11_HASH_CTRL_BIT4); } void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv) |
