On Fri, Jan 08, 2016 at 03:03:53PM +0000, Peter Antoine wrote: > This patch resizes the GuC WOPCM to so that the GuC and the RC6 memory > spaces do not overlap. > > Issue: https://jira01.devtools.intel.com/browse/VIZ-6638 > Signed-off-by: Peter Antoine <peter.antoine@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_guc_reg.h | 3 ++- > drivers/gpu/drm/i915/intel_guc_loader.c | 5 +++++ > 2 files changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/i915_guc_reg.h b/drivers/gpu/drm/i915/i915_guc_reg.h > index 685c799..cb938b0 100644 > --- a/drivers/gpu/drm/i915/i915_guc_reg.h > +++ b/drivers/gpu/drm/i915/i915_guc_reg.h > @@ -58,7 +58,8 @@ > #define GUC_MAX_IDLE_COUNT _MMIO(0xC3E4) > > #define GUC_WOPCM_SIZE _MMIO(0xc050) > -#define GUC_WOPCM_SIZE_VALUE (0x80 << 12) /* 512KB */ > +#define GUC_WOPCM_SIZE_VALUE (0x80 << 12) /* 512KB */ > +#define BXT_GUC_WOPCM_SIZE_VALUE (0x70 << 12) /* 448KB */ > > /* GuC addresses below GUC_WOPCM_TOP don't map through the GTT */ > #define GUC_WOPCM_TOP (GUC_WOPCM_SIZE_VALUE) There seems to be other references to GUC_WOPCM_SIZE_VALUE including this one that need to be updated for BXT. -Jeff > diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c > index 8182d11..6b17d44 100644 > --- a/drivers/gpu/drm/i915/intel_guc_loader.c > +++ b/drivers/gpu/drm/i915/intel_guc_loader.c > @@ -305,6 +305,11 @@ static int guc_ucode_xfer(struct drm_i915_private *dev_priv) > > /* init WOPCM */ > I915_WRITE(GUC_WOPCM_SIZE, GUC_WOPCM_SIZE_VALUE); > + if (IS_BROXTON(dev)) > + I915_WRITE(GUC_WOPCM_SIZE, BXT_GUC_WOPCM_SIZE_VALUE); > + else > + I915_WRITE(GUC_WOPCM_SIZE, GUC_WOPCM_SIZE_VALUE); > + > I915_WRITE(DMA_GUC_WOPCM_OFFSET, GUC_WOPCM_OFFSET_VALUE); > > /* Enable MIA caching. GuC clock gating is disabled. */ > -- > 1.9.1 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
