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drm/i915/cfl: Introduce Display workarounds for Coffee Lake. 

The whole Display engine for Coffee Lake is pretty much
identical to the Kabylake. For this reason let's reuse
all display related production workardounds here even though
CFL is not explicit listed at Display workarounds page at Spec.

v2: moved intel_pm.c chunck to this patch in order to address
    all display related w/a in a single place.

Cc: Arthur Runyan <arthur.j.runyan@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1496937000-8450-3-git-send-email-rodrigo.vivi@intel.com
This commit is contained in:
Rodrigo Vivi 2017-06-08 08:50:00 -07:00
parent 809378196b
commit 82525c17de
1 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/gpu/drm/i915/intel_pm.c
View File

@ -58,24 +58,24 @@
static void gen9_init_clock_gating(struct drm_i915_private *dev_priv)
{
/* See Bspec note for PSR2_CTL bit 31, Wa#828:skl,bxt,kbl */
/* 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);
I915_WRITE(GEN8_CONFIG0,
I915_READ(GEN8_CONFIG0) | GEN9_DEFAULT_FIXES);
/* WaEnableChickenDCPR:skl,bxt,kbl,glk */
/* WaEnableChickenDCPR:skl,bxt,kbl,glk,cfl */
I915_WRITE(GEN8_CHICKEN_DCPR_1,
I915_READ(GEN8_CHICKEN_DCPR_1) | MASK_WAKEMEM);
/* WaFbcTurnOffFbcWatermark:skl,bxt,kbl */
/* WaFbcWakeMemOn:skl,bxt,kbl,glk */
/* 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);
/* WaFbcHighMemBwCorruptionAvoidance:skl,bxt,kbl */
/* WaFbcHighMemBwCorruptionAvoidance:skl,bxt,kbl,cfl */
I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
ILK_DPFC_DISABLE_DUMMY0);
}
@ -3549,7 +3549,7 @@ static bool skl_needs_memory_bw_wa(struct intel_atomic_state *state)
static bool
intel_has_sagv(struct drm_i915_private *dev_priv)
{
if (IS_KABYLAKE(dev_priv))
if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv))
return true;
if (IS_SKYLAKE(dev_priv) &&
@ -4459,8 +4459,9 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
fb->modifier == I915_FORMAT_MOD_Yf_TILED;
x_tiled = fb->modifier == I915_FORMAT_MOD_X_TILED;
/* Display WA #1141: kbl. */
if (IS_KABYLAKE(dev_priv) && dev_priv->ipc_enabled)
/* Display WA #1141: kbl,cfl */
if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) &&
dev_priv->ipc_enabled)
latency += 4;
if (apply_memory_bw_wa && x_tiled)
@ -8312,7 +8313,7 @@ static void kabylake_init_clock_gating(struct drm_i915_private *dev_priv)
I915_WRITE(GEN6_UCGCTL1, I915_READ(GEN6_UCGCTL1) |
GEN6_GAMUNIT_CLOCK_GATE_DISABLE);
/* WaFbcNukeOnHostModify:kbl */
/* WaFbcNukeOnHostModify:kbl,cfl */
I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
ILK_DPFC_NUKE_ON_ANY_MODIFICATION);
}
@ -8780,7 +8781,7 @@ void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
{
if (IS_SKYLAKE(dev_priv))
dev_priv->display.init_clock_gating = skylake_init_clock_gating;
else if (IS_KABYLAKE(dev_priv))
else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv))
dev_priv->display.init_clock_gating = kabylake_init_clock_gating;
else if (IS_BROXTON(dev_priv))
dev_priv->display.init_clock_gating = bxt_init_clock_gating;