I have been seeing this for a long time, but ignored it because it's
typically not terribly important. Recently, I really needed this info,
and it was garbage. Proof that I should have fixed it sooner. Originally
wrong from:
commit 6c7a01ec3743a5a6ce9e53a69d7a6c2d8c715eb1
Author: Ben Widawsky <benjamin.widawsky@xxxxxxxxx>
Date: Thu Jan 30 00:19:40 2014 -0800
drm/i915: Capture PPGTT info on error capture
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gpu_error.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 7a9bba1..d7ac688 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -899,10 +899,12 @@ static void i915_record_ring_state(struct drm_device *dev,
}
break;
case 7:
- ering->vm_info.pp_dir_base = RING_PP_DIR_BASE(ring);
+ ering->vm_info.pp_dir_base =
+ I915_READ(RING_PP_DIR_BASE(ring));
break;
case 6:
- ering->vm_info.pp_dir_base = RING_PP_DIR_BASE_READ(ring);
+ ering->vm_info.pp_dir_base =
+ I915_READ(RING_PP_DIR_BASE_READ(ring));
break;
}
}
--
1.9.0
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