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drm/amdgpu: Use vm status_lock to protect vm idle list

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Use vm_status_lock to protect all vm_status state transitions to allow
them to happen without a reservation lock in unlocked page table
updates.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Philip Yang 2022-09-15 22:54:01 -04:00 committed by Alex Deucher
parent b38e77cb7b
commit c1806d78ec
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -211,7 +211,9 @@ static void amdgpu_vm_bo_moved(struct amdgpu_vm_bo_base *vm_bo)
*/
static void amdgpu_vm_bo_idle(struct amdgpu_vm_bo_base *vm_bo)
{
spin_lock(&vm_bo->vm->status_lock);
list_move(&vm_bo->vm_status, &vm_bo->vm->idle);
spin_unlock(&vm_bo->vm->status_lock);
vm_bo->moved = false;
}
@ -2554,6 +2556,7 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
unsigned int total_done_objs = 0;
unsigned int id = 0;
spin_lock(&vm->status_lock);
seq_puts(m, "\tIdle BOs:\n");
list_for_each_entry_safe(bo_va, tmp, &vm->idle, base.vm_status) {
if (!bo_va->base.bo)
@ -2591,7 +2594,6 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
id = 0;
seq_puts(m, "\tInvalidated BOs:\n");
spin_lock(&vm->status_lock);
list_for_each_entry_safe(bo_va, tmp, &vm->invalidated, base.vm_status) {
if (!bo_va->base.bo)
continue;