nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-22 17:36:20 +03:00
Code Issues Packages Projects Releases Wiki Activity

Revert "gpu: nvgpu: Fix the race between runtime PM and L2 flush"

Browse Source 
This patch results in a flaw that doesn't clear the GPU cache. This reverts commit 47f6bc0c2e.

Bug 2687410

Change-Id: If78bd7ca29eb5621d4369cbddf21320e2a77a41a
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2186886
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Debarshi Dutta
2019-08-29 23:02:25 -07:00
committed by mobile promotions
parent 0663838308
commit f57cf74d57
3 changed files with 2 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
View File

@@ -593,28 +593,19 @@ static int gk20a_ctrl_get_fbp_l2_masks(
static int nvgpu_gpu_ioctl_l2_fb_ops(struct gk20a *g,
struct nvgpu_gpu_l2_fb_args *args)
{
int ret = 0;
int err = 0;
if ((!args->l2_flush && !args->fb_flush) ||
(!args->l2_flush && args->l2_invalidate))
return -EINVAL;
ret = gk20a_busy_try_noresume(g);
/* return if device is already powered off */
if (ret == 0)
return 0;
if (args->l2_flush)
g->ops.mm.l2_flush(g, args->l2_invalidate ? true : false);
if (args->fb_flush)
g->ops.mm.fb_flush(g);
if (ret > 0)
gk20a_idle_nosuspend(g);
return 0;
return err;
}
static int nvgpu_gpu_ioctl_set_mmu_debug_mode(