On 09.07.2012 17:06, Michel Dänzer wrote:
On Mon, 2012-07-09 at 12:42 +0200, Christian König wrote:
Try to save whatever is on the rings when
we encounter an lockup.
Signed-off-by: Christian König <deathsimple@xxxxxxxxxxx>
[...]
@@ -1005,20 +1010,43 @@ int radeon_gpu_reset(struct radeon_device *rdev)
resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
radeon_suspend(rdev);
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ ring_sizes[i] = radeon_ring_backup(rdev, &rdev->ring[i],
+ &ring_data[i]);
+ if (ring_sizes[i]) {
+ saved = true;
+ dev_info(rdev->dev, "Saved %d dwords of commands "
+ "on ring %d.\n", ring_sizes[i], i);
+ }
+ }
+
+retry:
r = radeon_asic_reset(rdev);
if (!r) {
- dev_info(rdev->dev, "GPU reset succeed\n");
+ dev_info(rdev->dev, "GPU reset succeed trying to resume\n");
Could fix the spelling of 'succeeded' while you're at it. :)
Akk, fixed it.
radeon_resume(rdev);
+ }
- r = radeon_ib_ring_tests(rdev);
- if (r)
- DRM_ERROR("ib ring test failed (%d).\n", r);
+ radeon_restore_bios_scratch_regs(rdev);
+ drm_helper_resume_force_mode(rdev->ddev);
+
+ if (!r) {
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ radeon_ring_restore(rdev, &rdev->ring[i],
+ ring_sizes[i], ring_data[i]);
+ }
If radeon_asic_reset fails, this leaks the memory referenced by
ring_data, doesn't it?
Oh yes indeed, going to fix that.
Also, the added functions aren't documented as mandated by the rules
Alex proposed.
True, also going to fix that.
Christian.
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