diff options
| author | Jordan Crouse <jcrouse@codeaurora.org> | 2020-12-31 13:55:39 +0530 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2021-01-07 02:28:10 -0800 |
| commit | 727c4c8471c6aee218bbdd62aa07d743112b487e (patch) | |
| tree | 07acb8f782a1238b31de7d4a04b817f8ee5d1193 /drivers/gpu/msm/kgsl_sharedmem.c | |
| parent | 9e5dc94f80da0643d5c44327e0473d5c10aecc92 (diff) | |
msm: kgsl: Protect the memdesc->gpuaddr in SVM use cases
When SVM is being used there can only be one GPU address assigned
to the memory descriptor. Don't allow the GPU address to be changed
after it has been negotiated the first time by a process.
Change-Id: Ic0dedbad2a1b3ccdc2c1598a6c501b2be288d64e
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Harshitha Sai Neelati <hsaine@codeaurora.org>
Signed-off-by: Kamal Agrawal <kamaagra@codeaurora.org>
Diffstat (limited to 'drivers/gpu/msm/kgsl_sharedmem.c')
| -rw-r--r-- | drivers/gpu/msm/kgsl_sharedmem.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/msm/kgsl_sharedmem.c b/drivers/gpu/msm/kgsl_sharedmem.c index 0f5e7a0ebc29..dfbea53c306b 100644 --- a/drivers/gpu/msm/kgsl_sharedmem.c +++ b/drivers/gpu/msm/kgsl_sharedmem.c @@ -342,6 +342,7 @@ int kgsl_allocate_user(struct kgsl_device *device, int ret; memdesc->flags = flags; + spin_lock_init(&memdesc->lock); if (kgsl_mmu_get_mmutype(device) == KGSL_MMU_TYPE_NONE) ret = kgsl_sharedmem_alloc_contig(device, memdesc, size); |