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| author | Chuanxiao Dong <chuanxiao.dong@intel.com> | 2017-07-07 17:50:59 +0800 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-07-07 11:05:53 +0100 |
| commit | 17369ba08c065967b7b8c48253f20b73acc0b9f5 (patch) | |
| tree | 5e173a23ab9bd5770b740208d17f6e2f978b5ce9 | |
| parent | 6602be0e2c6163bd747d490d8875ef0812c11560 (diff) | |
| download | lwn-17369ba08c065967b7b8c48253f20b73acc0b9f5.tar.gz lwn-17369ba08c065967b7b8c48253f20b73acc0b9f5.zip | |
drm/i915: Fix the kernel panic when using aliasing ppgtt
The ppgtt should be get directly from i915_address_space *vm instead of
vma->vm.
v2:
- add one more fix for bxt. (Chris)
Fixes: 4a234c5fae16 ("drm/i915: pass the vma to insert_entries")
Bugzilla:https://bugs.freedesktop.org/show_bug.cgi?id=101713
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com> v1
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1499421059-18262-1-git-send-email-chuanxiao.dong@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index de67084d5fcf..10aa7762d9a6 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -910,7 +910,7 @@ static void gen8_ppgtt_insert_3lvl(struct i915_address_space *vm, enum i915_cache_level cache_level, u32 unused) { - struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vma->vm); + struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vm); struct sgt_dma iter = { .sg = vma->pages->sgl, .dma = sg_dma_address(iter.sg), @@ -2242,7 +2242,7 @@ static void bxt_vtd_ggtt_insert_entries__BKL(struct i915_address_space *vm, enum i915_cache_level level, u32 unused) { - struct insert_entries arg = { vma->vm, vma, level }; + struct insert_entries arg = { vm, vma, level }; stop_machine(bxt_vtd_ggtt_insert_entries__cb, &arg, NULL); } |