[Intel-xe] [PATCH] drm/xe/: add gt tuning for indirect state

[Souza, Jose]

On Fri, 2023-04-14 at 12:33 -0700, Matt Atwood wrote:
> Force indirect state sampler data to only be in the dynamic state pool,
> which is more convienent for UMD. Behavior change mirrors windows
> behavior.
> 
> Signed-off-by: Matt Atwood <matthew.s.atwood at intel.com>
> ---
>  drivers/gpu/drm/xe/regs/xe_gt_regs.h | 1 +
>  drivers/gpu/drm/xe/xe_tuning.c       | 5 +++++
>  2 files changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> index f174758d8307..b7324aede6b6 100644
> --- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> +++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
> @@ -286,6 +286,7 @@
>  #define   ENABLE_SMALLPL			REG_BIT(15)
>  #define   SC_DISABLE_POWER_OPTIMIZATION_EBB	REG_BIT(9)
>  #define   GEN11_SAMPLER_ENABLE_HEADLESS_MSG	REG_BIT(5)
> +#define   INDIRECT_STATE_BASE_ADDR_OVERRIDE	REG_BIT(0)
>  
>  #define GEN9_HALF_SLICE_CHICKEN7		MCR_REG(0xe194)
>  #define   DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA	REG_BIT(15)
> diff --git a/drivers/gpu/drm/xe/xe_tuning.c b/drivers/gpu/drm/xe/xe_tuning.c
> index 27cf1330facd..5abef45a10fc 100644
> --- a/drivers/gpu/drm/xe/xe_tuning.c
> +++ b/drivers/gpu/drm/xe/xe_tuning.c
> @@ -26,6 +26,11 @@ static const struct xe_rtp_entry gt_tunings[] = {
>  	  XE_RTP_RULES(PLATFORM(DG2)),
>  	  XE_RTP_ACTIONS(SET(XEHP_SQCM, EN_32B_ACCESS))
>  	},
> +	{ XE_RTP_NAME("Tuning: Set Indirect State Override"),
> +	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, -1)),

end version should be XE_RTP_END_VERSION_UNDEFINED

> +	  XE_RTP_ACTIONS(SET(GEN10_SAMPLER_MODE, INDIRECT_STATE_BASE_ADDR_OVERRIDE,
> +			     XE_RTP_ACTION_FLAG(MASKED_REG)))
> +	},
>  	{}
>  };
>