nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-24 02:22:34 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: add null check for perfbuffer enable and disable dbg ops

Browse Source 
This is needed to disable/enable features on new chips

Bug 200352825

Change-Id: I02eb58e6fdd554ed20866fe8a8553a667541f512
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1574481
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Seema Khowala
2017-10-06 10:49:21 -07:00
committed by mobile promotions
parent 7bbbacee21
commit bf8dca77ae
1 changed files with 9 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
View File

@@ -1911,10 +1911,15 @@ static int gk20a_perfbuf_map(struct dbg_session_gk20a *dbg_s,
struct mm_gk20a *mm = &g->mm; struct mm_gk20a *mm = &g->mm;
int err; int err;
u32 virt_size; u32 virt_size;
u32 big_page_size = g->ops.mm.get_default_big_page_size(); u32 big_page_size;
if (!g->ops.dbg_session_ops.perfbuffer_enable)
return -ENOSYS;
nvgpu_mutex_acquire(&g->dbg_sessions_lock); nvgpu_mutex_acquire(&g->dbg_sessions_lock);
big_page_size = g->ops.mm.get_default_big_page_size();
if (g->perfbuf.owner) { if (g->perfbuf.owner) {
nvgpu_mutex_release(&g->dbg_sessions_lock); nvgpu_mutex_release(&g->dbg_sessions_lock);
return -EBUSY; return -EBUSY;
@@ -2015,6 +2020,9 @@ static int gk20a_perfbuf_unmap(struct dbg_session_gk20a *dbg_s,
struct gk20a *g = dbg_s->g; struct gk20a *g = dbg_s->g;
int err; int err;
if (!g->ops.dbg_session_ops.perfbuffer_disable)
return -ENOSYS;
nvgpu_mutex_acquire(&g->dbg_sessions_lock); nvgpu_mutex_acquire(&g->dbg_sessions_lock);
if ((g->perfbuf.owner != dbg_s) || if ((g->perfbuf.owner != dbg_s) ||
(g->perfbuf.offset != args->offset)) { (g->perfbuf.offset != args->offset)) {