Quoting Radhakrishna Sripada (2018-10-30 08:45:04)
> From: Oscar Mateo <oscar.mateo@xxxxxxxxx>
>
> Required for Bindless samplers.
> Userspace consumer: mesa
>
> V2: Rebase
> V3: Update commit message
>
> Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> Signed-off-by: Oscar Mateo <oscar.mateo@xxxxxxxxx>
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 2 ++
> drivers/gpu/drm/i915/intel_workarounds.c | 3 +++
> 2 files changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index f76fa13a12a2..050fedb4fc81 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -8648,6 +8648,8 @@ enum {
> #define GAMW_ECO_DEV_RW_IA_REG _MMIO(0x4080)
> #define GAMW_ECO_DEV_CTX_RELOAD_DISABLE (1 << 7)
>
> +#define GEN10_SAMPLER_MODE _MMIO(0xE18C)
> +
> /* 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 896874278852..d7176213e3ce 100644
> --- a/drivers/gpu/drm/i915/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/intel_workarounds.c
> @@ -1018,6 +1018,9 @@ static void icl_whitelist_build(struct whitelist *w)
> {
> /* WaAllowUMDToModifyHalfSliceChicken7:icl */
> whitelist_reg(w, GEN9_HALF_SLICE_CHICKEN7);
> +
> + /* WaAllowUMDToModifySamplerMode:icl */
> + whitelist_reg(w, GEN10_SAMPLER_MODE);
Hmm, we need the basic subtests of gem_workarounds in BAT to have any
coverage of this code.
-Chris
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