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radeonsi: disable Smart Access Memory because CPU access has large overhead

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It will be remove completely in the next commit.

Related: https://gitlab.freedesktop.org/mesa/mesa/-/issues/8176

Cc: mesa-stable

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21525>
This commit is contained in:
Marek Olšák
2023-02-18 04:51:28 -05:00
committed by Marge Bot
parent d61cd39026
commit d8b17b1752
1 changed files with 2 additions and 0 deletions
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src/gallium/drivers/radeonsi/si_pipe.c
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@@ -1140,6 +1140,8 @@ static struct pipe_screen *radeonsi_screen_create_impl(struct radeon_winsys *ws,
sscreen->options.enable_sam,
sscreen->options.disable_sam);
sscreen->info.smart_access_memory = false; /* VRAM has slower CPU access */
if (sscreen->info.gfx_level >= GFX9) {
sscreen->se_tile_repeat = 32 * sscreen->info.max_se;
} else {