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winsys/radeon: fix a wrong NUM_TILE_PIPES value from the kernel

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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94019

Tested-by: Nick Sarnie <commendsarnex@gmail.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák 2016-02-07 20:25:01 +01:00
parent 1aae5e8ced
commit 83b4d701c0
1 changed files with 6 additions and 0 deletions
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6
src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
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@ -405,6 +405,12 @@ static boolean do_winsys_init(struct radeon_drm_winsys *ws)
radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_TILE_PIPES, NULL,
&ws->info.num_tile_pipes);
/* The kernel returns 12 for some cards for an unknown reason.
* I thought this was supposed to be a power of two.
*/
if (ws->gen == DRV_SI && ws->info.num_tile_pipes == 12)
ws->info.num_tile_pipes = 8;
if (radeon_get_drm_value(ws->fd, RADEON_INFO_BACKEND_MAP, NULL,
&ws->info.r600_gb_backend_map))
ws->info.r600_gb_backend_map_valid = TRUE;