4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Michel Thierry <michel.thie...@intel.com> commit b579f924a90f42fa561afd8201514fc216b71949 upstream. Factor in clear values wherever required while updating destination min/max. References: HSDES#1604444184 Signed-off-by: Michel Thierry <michel.thie...@intel.com> Cc: mesa-...@lists.freedesktop.org Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com> Cc: Oscar Mateo <oscar.ma...@intel.com> Reviewed-by: Mika Kuoppala <mika.kuopp...@linux.intel.com> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180510200708.18097-1-michel.thie...@intel.com Cc: sta...@vger.kernel.org Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180514165445.9198-1-michel.thie...@intel.com (backported from commit 0c79f9cb77eae28d48a4f9fc1b3341aacbbd260c) Signed-off-by: Joonas Lahtinen <joonas.lahti...@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/gpu/drm/i915/i915_reg.h | 3 +++ drivers/gpu/drm/i915/intel_engine_cs.c | 4 ++++ 2 files changed, 7 insertions(+) --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7044,6 +7044,9 @@ enum { #define SLICE_ECO_CHICKEN0 _MMIO(0x7308) #define PIXEL_MASK_CAMMING_DISABLE (1 << 14) +#define GEN9_WM_CHICKEN3 _MMIO(0x5588) +#define GEN9_FACTOR_IN_CLR_VAL_HIZ (1 << 9) + /* WaCatErrorRejectionIssue */ #define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG _MMIO(0x9030) #define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -900,6 +900,10 @@ static int gen9_init_workarounds(struct I915_WRITE(GEN8_L3SQCREG4, (I915_READ(GEN8_L3SQCREG4) | GEN8_LQSC_FLUSH_COHERENT_LINES)); + /* WaClearHIZ_WM_CHICKEN3:bxt,glk */ + if (IS_GEN9_LP(dev_priv)) + WA_SET_BIT_MASKED(GEN9_WM_CHICKEN3, GEN9_FACTOR_IN_CLR_VAL_HIZ); + /* WaVFEStateAfterPipeControlwithMediaStateClear:skl,bxt,glk,cfl */ ret = wa_ring_whitelist_reg(engine, GEN9_CTX_PREEMPT_REG); if (ret)
