xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915: Report an error when i915.reset prevents a reset

Browse Source 
If the user disables the GPU reset using the i915.reset parameter and
one occurs, report that we failed to reset the GPU. If we return early,
as we currently do, then we leave all state intact (with a hung GPU)
and clients block forever waiting for their requests to complete.

Testcase: igt/gem_eio
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Mark i915.reset as an unsafe modoption, as discussed with
Chris.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson
2015-06-18 11:42:08 +01:00
committed by Daniel Vetter
parent bf13af5625
commit b1330fbb87
4 changed files with 4 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/i915_params.c
View File

@@ -104,7 +104,7 @@ MODULE_PARM_DESC(vbt_sdvo_panel_type,
"Override/Ignore selection of SDVO panel mode in the VBT "
"(-2=ignore, -1=auto [default], index in VBT BIOS table)");
module_param_named(reset, i915.reset, bool, 0600);
module_param_named_unsafe(reset, i915.reset, bool, 0600);
MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
module_param_named(enable_hangcheck, i915.enable_hangcheck, bool, 0644);