radeonsi: improve viewperf snx performance by forcing staging for VRAM buffers
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com> Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12257>
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@ -162,7 +162,8 @@ void si_init_resource_fields(struct si_screen *sscreen, struct si_resource *res,
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* This tweak improves performance for viewperf.
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*/
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const unsigned min_size = 8196; /* tuned to minimize mapped VRAM */
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const unsigned max_staging_uploads = 1; /* number of uploads before mapping directly */
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/* Number of uploads before mapping directly. A very high number helps display lists (snx). */
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const unsigned max_staging_uploads = 1000000;
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res->max_forced_staging_uploads = res->b.max_forced_staging_uploads =
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sscreen->info.has_dedicated_vram && size >= min_size ? max_staging_uploads : 0;
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