linux-next: manual merge of the drm tree with Linus' tree

Stephen Rothwell
2012-07-19T01:38:34Z

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Hi Dave,

Today's linux-next merge of the drm tree got a conflict in
drivers/gpu/drm/radeon/radeon_gart.c between commit c21b328ea8c7
("drm/radeon: fix VM page table setup on SI") from Linus' tree and commit
c6105f249a63 ("drm/radeon: remove vm_manager start/suspend") from the drm
tree.

I fixed it up (I think - see below) and can carry the fix as necessary.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au

diff --cc drivers/gpu/drm/radeon/radeon_gart.c
index 84b648a,56752da..0000000
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@@ -282,31 -282,61 +282,62 @@@ void radeon_gart_fini(struct radeon_dev
*
* TODO bind a default page at vm initialization for default address
*/
+
int radeon_vm_manager_init(struct radeon_device *rdev)
{
+ struct radeon_vm *vm;
+ struct radeon_bo_va *bo_va;
int r;

- rdev->vm_manager.enabled = false;
+ if (!rdev->vm_manager.enabled) {
+ /* mark first vm as always in use, it's the system one */
++ /* allocate enough for 2 full VM pts */
+ r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager,
- rdev->vm_manager.max_pfn * 8,
++ rdev->vm_manager.max_pfn * 8 * 2,
+ RADEON_GEM_DOMAIN_VRAM);
+ if (r) {
+ dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n",
+ (rdev->vm_manager.max_pfn * 8) >> 10);
+ return r;
+ }

- /* mark first vm as always in use, it's the system one */
- /* allocate enough for 2 full VM pts */
- r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager,
- rdev->vm_manager.max_pfn * 8 * 2,
- RADEON_GEM_DOMAIN_VRAM);
- if (r) {
- dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n",
- (rdev->vm_manager.max_pfn * 8) >> 10);
- return r;
+ r = rdev->vm_manager.funcs->init(rdev);
+ if (r)
+ return r;
+
+ rdev->vm_manager.enabled = true;
+
+ r = radeon_sa_bo_manager_start(rdev, &rdev->vm_manager.sa_manager);
+ if (r)
+ return r;
}

- r = rdev->vm_manager.funcs->init(rdev);
- if (r == 0)
- rdev->vm_manager.enabled = true;
+ /* restore page table */
+ list_for_each_entry(vm, &rdev->vm_manager.lru_vm, list) {
+ if (vm->id == -1)
+ continue;

- return r;
+ list_for_each_entry(bo_va, &vm->va, vm_list) {
+ struct ttm_mem_reg *mem = NULL;
+ if (bo_va->valid)
+ mem = &bo_va->bo->tbo.mem;
+
+ bo_va->valid = false;
+ r = radeon_vm_bo_update_pte(rdev, vm, bo_va->bo, mem);
+ if (r) {
+ DRM_ERROR("Failed to update pte for vm %d!\n", vm->id);
+ }
+ }
+
+ r = rdev->vm_manager.funcs->bind(rdev, vm, vm->id);
+ if (r) {
+ DRM_ERROR("Failed to bind vm %d!\n", vm->id);
+ }
+ }
+ return 0;
}

- /* cs mutex must be lock */
+ /* global mutex must be lock */
static void radeon_vm_unbind_locked(struct radeon_device *rdev,
struct radeon_vm *vm)
{

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