lisa/android_kernel_xiaomi_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

msm: kgsl: Make sure that IB addresses are dword aligned

Browse Source 
All IB GPU addresses should be dword aligned. Enforce that in software
to keep invalid addresses from bothering the CP.

Change-Id: Ic0dedbad2298ebbd20ca1b575b8e36dcbf5a1fbe
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
This commit is contained in:
Jordan Crouse 2020-06-23 17:42:19 -06:00
parent 7b96268e45
commit 2460bec971
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/msm/adreno_dispatch.c
View File

@ -1134,8 +1134,9 @@ static inline bool _verify_ib(struct kgsl_device_private *dev_priv,
return false;
}
/* Make sure that the address is mapped */
if (!kgsl_mmu_gpuaddr_in_range(private->pagetable, ib->gpuaddr)) {
/* Make sure that the address is in range and dword aligned */
if (!kgsl_mmu_gpuaddr_in_range(private->pagetable, ib->gpuaddr) ||
!IS_ALIGNED(ib->gpuaddr, 4)) {
pr_context(device, context, "ctxt %d invalid ib gpuaddr %llX\n",
context->id, ib->gpuaddr);
return false;