[Mesa-dev] [PATCH] gallium/radeon: add an env variable to force a level of aniso filtering

Nicolai Hähnle nhaehnle at gmail.com
Tue Apr 12 23:20:34 UTC 2016


While the whole driconf thing is certainly worth addressing, in the 
meantime, this patch is

Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

On 11.04.2016 13:48, Marek Olšák wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> ---
>   src/gallium/drivers/r600/evergreen_state.c    | 10 +++++++---
>   src/gallium/drivers/r600/r600_state.c         | 10 +++++++---
>   src/gallium/drivers/radeon/r600_pipe_common.c |  7 +++++++
>   src/gallium/drivers/radeon/r600_pipe_common.h |  3 +++
>   src/gallium/drivers/radeonsi/si_state.c       | 10 +++++++---
>   5 files changed, 31 insertions(+), 9 deletions(-)
>
> diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
> index 6b6e816..2ad9e3e 100644
> --- a/src/gallium/drivers/r600/evergreen_state.c
> +++ b/src/gallium/drivers/r600/evergreen_state.c
> @@ -561,7 +561,11 @@ static void *evergreen_create_rs_state(struct pipe_context *ctx,
>   static void *evergreen_create_sampler_state(struct pipe_context *ctx,
>   					const struct pipe_sampler_state *state)
>   {
> +	struct r600_common_screen *rscreen = (struct r600_common_screen*)ctx->screen;
>   	struct r600_pipe_sampler_state *ss = CALLOC_STRUCT(r600_pipe_sampler_state);
> +	unsigned max_aniso = rscreen->force_aniso >= 0 ? rscreen->force_aniso
> +						       : state->max_anisotropy;
> +	unsigned max_aniso_ratio = r600_tex_aniso_filter(max_aniso);
>
>   	if (!ss) {
>   		return NULL;
> @@ -574,10 +578,10 @@ static void *evergreen_create_sampler_state(struct pipe_context *ctx,
>   		S_03C000_CLAMP_X(r600_tex_wrap(state->wrap_s)) |
>   		S_03C000_CLAMP_Y(r600_tex_wrap(state->wrap_t)) |
>   		S_03C000_CLAMP_Z(r600_tex_wrap(state->wrap_r)) |
> -		S_03C000_XY_MAG_FILTER(eg_tex_filter(state->mag_img_filter, state->max_anisotropy)) |
> -		S_03C000_XY_MIN_FILTER(eg_tex_filter(state->min_img_filter, state->max_anisotropy)) |
> +		S_03C000_XY_MAG_FILTER(eg_tex_filter(state->mag_img_filter, max_aniso)) |
> +		S_03C000_XY_MIN_FILTER(eg_tex_filter(state->min_img_filter, max_aniso)) |
>   		S_03C000_MIP_FILTER(r600_tex_mipfilter(state->min_mip_filter)) |
> -		S_03C000_MAX_ANISO_RATIO(r600_tex_aniso_filter(state->max_anisotropy)) |
> +		S_03C000_MAX_ANISO_RATIO(max_aniso_ratio) |
>   		S_03C000_DEPTH_COMPARE_FUNCTION(r600_tex_compare(state->compare_func)) |
>   		S_03C000_BORDER_COLOR_TYPE(ss->border_color_use ? V_03C000_SQ_TEX_BORDER_COLOR_REGISTER : 0);
>   	/* R_03C004_SQ_TEX_SAMPLER_WORD1_0 */
> diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
> index 59fe2f4..91e747f 100644
> --- a/src/gallium/drivers/r600/r600_state.c
> +++ b/src/gallium/drivers/r600/r600_state.c
> @@ -571,7 +571,11 @@ static unsigned r600_tex_filter(unsigned filter, unsigned max_aniso)
>   static void *r600_create_sampler_state(struct pipe_context *ctx,
>   					const struct pipe_sampler_state *state)
>   {
> +	struct r600_common_screen *rscreen = (struct r600_common_screen*)ctx->screen;
>   	struct r600_pipe_sampler_state *ss = CALLOC_STRUCT(r600_pipe_sampler_state);
> +	unsigned max_aniso = rscreen->force_aniso >= 0 ? rscreen->force_aniso
> +						       : state->max_anisotropy;
> +	unsigned max_aniso_ratio = r600_tex_aniso_filter(max_aniso);
>
>   	if (!ss) {
>   		return NULL;
> @@ -585,10 +589,10 @@ static void *r600_create_sampler_state(struct pipe_context *ctx,
>   		S_03C000_CLAMP_X(r600_tex_wrap(state->wrap_s)) |
>   		S_03C000_CLAMP_Y(r600_tex_wrap(state->wrap_t)) |
>   		S_03C000_CLAMP_Z(r600_tex_wrap(state->wrap_r)) |
> -		S_03C000_XY_MAG_FILTER(r600_tex_filter(state->mag_img_filter, state->max_anisotropy)) |
> -		S_03C000_XY_MIN_FILTER(r600_tex_filter(state->min_img_filter, state->max_anisotropy)) |
> +		S_03C000_XY_MAG_FILTER(r600_tex_filter(state->mag_img_filter, max_aniso)) |
> +		S_03C000_XY_MIN_FILTER(r600_tex_filter(state->min_img_filter, max_aniso)) |
>   		S_03C000_MIP_FILTER(r600_tex_mipfilter(state->min_mip_filter)) |
> -		S_03C000_MAX_ANISO_RATIO(r600_tex_aniso_filter(state->max_anisotropy)) |
> +		S_03C000_MAX_ANISO_RATIO(max_aniso_ratio) |
>   		S_03C000_DEPTH_COMPARE_FUNCTION(r600_tex_compare(state->compare_func)) |
>   		S_03C000_BORDER_COLOR_TYPE(ss->border_color_use ? V_03C000_SQ_TEX_BORDER_COLOR_REGISTER : 0);
>   	/* R_03C004_SQ_TEX_SAMPLER_WORD1_0 */
> diff --git a/src/gallium/drivers/radeon/r600_pipe_common.c b/src/gallium/drivers/radeon/r600_pipe_common.c
> index 490cf8b..a7477ab 100644
> --- a/src/gallium/drivers/radeon/r600_pipe_common.c
> +++ b/src/gallium/drivers/radeon/r600_pipe_common.c
> @@ -889,6 +889,13 @@ bool r600_common_screen_init(struct r600_common_screen *rscreen,
>   	rscreen->chip_class = rscreen->info.chip_class;
>   	rscreen->debug_flags = debug_get_flags_option("R600_DEBUG", common_debug_options, 0);
>
> +	rscreen->force_aniso = MIN2(16, debug_get_num_option("R600_TEX_ANISO", -1));
> +	if (rscreen->force_aniso >= 0) {
> +		printf("radeon: Forcing anisotropy filter to %ix\n",
> +		       /* round down to a power of two */
> +		       1 << util_logbase2(rscreen->force_aniso));
> +	}
> +
>   	util_format_s3tc_init();
>   	pipe_mutex_init(rscreen->aux_context_lock);
>   	pipe_mutex_init(rscreen->gpu_load_mutex);
> diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h b/src/gallium/drivers/radeon/r600_pipe_common.h
> index 88879b7..a6abe09 100644
> --- a/src/gallium/drivers/radeon/r600_pipe_common.h
> +++ b/src/gallium/drivers/radeon/r600_pipe_common.h
> @@ -306,6 +306,9 @@ struct r600_common_screen {
>   	bool				has_cp_dma;
>   	bool				has_streamout;
>
> +	/* Texture filter settings. */
> +	int				force_aniso; /* -1 = disabled */
> +
>   	/* Auxiliary context. Mainly used to initialize resources.
>   	 * It must be locked prior to using and flushed before unlocking. */
>   	struct pipe_context		*aux_context;
> diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
> index 84c8bc8..48d8897 100644
> --- a/src/gallium/drivers/radeonsi/si_state.c
> +++ b/src/gallium/drivers/radeonsi/si_state.c
> @@ -3163,8 +3163,12 @@ static void *si_create_sampler_state(struct pipe_context *ctx,
>   				     const struct pipe_sampler_state *state)
>   {
>   	struct si_context *sctx = (struct si_context *)ctx;
> +	struct r600_common_screen *rscreen = sctx->b.screen;
>   	struct si_sampler_state *rstate = CALLOC_STRUCT(si_sampler_state);
>   	unsigned border_color_type, border_color_index = 0;
> +	unsigned max_aniso = rscreen->force_aniso >= 0 ? rscreen->force_aniso
> +						       : state->max_anisotropy;
> +	unsigned max_aniso_ratio = r600_tex_aniso_filter(max_aniso);
>
>   	if (!rstate) {
>   		return NULL;
> @@ -3222,7 +3226,7 @@ static void *si_create_sampler_state(struct pipe_context *ctx,
>   	rstate->val[0] = (S_008F30_CLAMP_X(si_tex_wrap(state->wrap_s)) |
>   			  S_008F30_CLAMP_Y(si_tex_wrap(state->wrap_t)) |
>   			  S_008F30_CLAMP_Z(si_tex_wrap(state->wrap_r)) |
> -			  S_008F30_MAX_ANISO_RATIO(r600_tex_aniso_filter(state->max_anisotropy)) |
> +			  S_008F30_MAX_ANISO_RATIO(max_aniso_ratio) |
>   			  S_008F30_DEPTH_COMPARE_FUNC(si_tex_compare(state->compare_func)) |
>   			  S_008F30_FORCE_UNNORMALIZED(!state->normalized_coords) |
>   			  S_008F30_DISABLE_CUBE_WRAP(!state->seamless_cube_map) |
> @@ -3230,8 +3234,8 @@ static void *si_create_sampler_state(struct pipe_context *ctx,
>   	rstate->val[1] = (S_008F34_MIN_LOD(S_FIXED(CLAMP(state->min_lod, 0, 15), 8)) |
>   			  S_008F34_MAX_LOD(S_FIXED(CLAMP(state->max_lod, 0, 15), 8)));
>   	rstate->val[2] = (S_008F38_LOD_BIAS(S_FIXED(CLAMP(state->lod_bias, -16, 16), 8)) |
> -			  S_008F38_XY_MAG_FILTER(eg_tex_filter(state->mag_img_filter, state->max_anisotropy)) |
> -			  S_008F38_XY_MIN_FILTER(eg_tex_filter(state->min_img_filter, state->max_anisotropy)) |
> +			  S_008F38_XY_MAG_FILTER(eg_tex_filter(state->mag_img_filter, max_aniso)) |
> +			  S_008F38_XY_MIN_FILTER(eg_tex_filter(state->min_img_filter, max_aniso)) |
>   			  S_008F38_MIP_FILTER(si_tex_mipfilter(state->min_mip_filter)) |
>   			  S_008F38_MIP_POINT_PRECLAMP(1) |
>   			  S_008F38_DISABLE_LSB_CEIL(1) |
>


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