From 9253c2e56b83dcc194f1e47bfd7b2bc1cc09a53f Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Mon, 9 Feb 2015 19:33:10 +0000 Subject: [PATCH] drm/i915/skl: Implement WaSetGAPSunitClckGateDisable Let's also take the opportunity the remove the comment telling it's a pre-prod W/A, it should be obvious from the stepping test. Signed-off-by: Damien Lespiau Reviewed-by: Nick Hoath Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_pm.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5de6cf450e1a..b00d323095af 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -6018,6 +6018,7 @@ enum skl_disp_power_wells { #define GEN6_RSTCTL 0x9420 #define GEN8_UCGCTL6 0x9430 +#define GEN8_GAPSUNIT_CLOCK_GATE_DISABLE (1<<24) #define GEN8_SDEUNIT_CLOCK_GATE_DISABLE (1<<14) #define GEN6_GFXPAUSE 0xA000 diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index b162c5c288bb..af8dca28c505 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -59,9 +59,10 @@ static void skl_init_clock_gating(struct drm_device *dev) if (INTEL_REVID(dev) == SKL_REVID_A0) { /* * WaDisableSDEUnitClockGating:skl - * This seems to be a pre-production w/a. + * WaSetGAPSunitClckGateDisable:skl */ I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) | + GEN8_GAPSUNIT_CLOCK_GATE_DISABLE | GEN8_SDEUNIT_CLOCK_GATE_DISABLE); } } -- 2.20.1