drm/radeon: drop ttm two ended allocation
radeon_bo_create() calls radeon_ttm_placement_from_domain() before ttm_bo_init() is called. radeon_ttm_placement_from_domain() uses the ttm bo size to determine when to select top down allocation but since the ttm bo is not initialized yet the check is always false. It only took effect when buffers were validated later. It also seemed to regress suspend and resume on some systems possibly due to it not taking effect in radeon_bo_create(). radeon_bo_create() and radeon_ttm_placement_from_domain() need to be reworked substantially for this to be optimally effective. Re-enable it at that point. Noticed-by: Oded Gabbay <oded.gabbay@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
This commit is contained in:
parent
046d669c62
commit
a239118a24
|
@ -173,17 +173,6 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
|
|||
else
|
||||
rbo->placements[i].lpfn = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Use two-ended allocation depending on the buffer size to
|
||||
* improve fragmentation quality.
|
||||
* 512kb was measured as the most optimal number.
|
||||
*/
|
||||
if (rbo->tbo.mem.size > 512 * 1024) {
|
||||
for (i = 0; i < c; i++) {
|
||||
rbo->placements[i].flags |= TTM_PL_FLAG_TOPDOWN;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int radeon_bo_create(struct radeon_device *rdev,
|
||||
|
|
Loading…
Reference in a new issue