nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-24 10:34:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: cde: Map backing store as read-only

Browse Source 
The cde shader will only read data from the global compbit backing
store. Map it as read-only to enforce this.

Change-Id: If5be44b8daedd5e7fdee650a6e76befa7bdecfd6
Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com>
Reviewed-on: http://git-master/r/486679
This commit is contained in:
Lauri Peltonen
2014-08-21 17:54:56 -07:00
committed by Dan Willemsen
parent a52a50d407
commit f05c269c23
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/nvgpu/gk20a/cde_gk20a.c
View File

@@ -795,7 +795,7 @@ int gk20a_cde_load(struct gk20a_cde_ctx *cde_ctx)
/* map backing store to gpu virtual space */
vaddr = gk20a_gmmu_map(ch->vm, &gr->compbit_store.sgt,
g->gr.compbit_store.size, 0,
gk20a_mem_flag_none);
gk20a_mem_flag_read_only);
if (!vaddr) {
gk20a_warn(&cde_ctx->pdev->dev, "cde: cannot map compression bit backing store");