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drm/ttm: Remove the CAP_SYS_ADMIN requirement for bo pinning 

This breaks vmwgfx non-root EGL clients and is a remnant from the
TTM user-space interface. This test should be done in the driver.
Replace the remaining placement test with a BUG_ON, since triggering
it is a driver bug.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2010-11-02 13:21:48 +00:00 committed by Dave Airlie
parent aa123268c2
commit 29e190e049
1 changed files with 2 additions and 28 deletions
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30
drivers/gpu/drm/ttm/ttm_bo.c
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@ -1119,35 +1119,9 @@ EXPORT_SYMBOL(ttm_bo_validate);
int ttm_bo_check_placement(struct ttm_buffer_object *bo,
struct ttm_placement *placement)
{
int i;
BUG_ON((placement->fpfn || placement->lpfn) &&
(bo->mem.num_pages > (placement->lpfn - placement->fpfn)));
if (placement->fpfn || placement->lpfn) {
if (bo->mem.num_pages > (placement->lpfn - placement->fpfn)) {
printk(KERN_ERR TTM_PFX "Page number range to small "
"Need %lu pages, range is [%u, %u]\n",
bo->mem.num_pages, placement->fpfn,
placement->lpfn);
return -EINVAL;
}
}
for (i = 0; i < placement->num_placement; i++) {
if (!capable(CAP_SYS_ADMIN)) {
if (placement->placement[i] & TTM_PL_FLAG_NO_EVICT) {
printk(KERN_ERR TTM_PFX "Need to be root to "
"modify NO_EVICT status.\n");
return -EINVAL;
}
}
}
for (i = 0; i < placement->num_busy_placement; i++) {
if (!capable(CAP_SYS_ADMIN)) {
if (placement->busy_placement[i] & TTM_PL_FLAG_NO_EVICT) {
printk(KERN_ERR TTM_PFX "Need to be root to "
"modify NO_EVICT status.\n");
return -EINVAL;
}
}
}
return 0;
}