mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-27 08:08:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915/gt: Restore both GGTT bindings on resume

Browse Source 
We should be able to skip restoring LOCAL (user) binds within the GGTT on
resume and let them be restored upon demand. However, our consistency
checks demand that the bind flags match the node state, and we cannot
simply clear the flags, we need to evict as well. For now, make sure we
restore the bind flags exactly upon resume.

Fixes: 0109a16ef3 ("drm/i915/gt: Clear LOCAL_BIND from shared GGTT on resume")
Fixes: bf0840cdb3 ("drm/i915/gt: Stop cross-polluting PIN_GLOBAL with PIN_USER with no-ppgtt")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200528150452.7880-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2020-05-28 16:04:52 +01:00
parent b72f02d78e
commit dc6cd912c7
1 changed files with 2 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/gt/intel_ggtt.c
View File

@@ -1183,13 +1183,11 @@ void i915_ggtt_resume(struct i915_ggtt *ggtt)
/* clflush objects bound into the GGTT and rebind them. */
list_for_each_entry(vma, &ggtt->vm.bound_list, vm_link) {
struct drm_i915_gem_object *obj = vma->obj;
if (!(clear_bind(vma) & I915_VMA_GLOBAL_BIND))
continue;
unsigned int was_bound = clear_bind(vma);
WARN_ON(i915_vma_bind(vma,
obj ? obj->cache_level : 0,
PIN_GLOBAL, NULL));
was_bound, NULL));
if (obj) { /* only used during resume => exclusive access */
flush |= fetch_and_zero(&obj->write_domain);
obj->read_domains |= I915_GEM_DOMAIN_GTT;