gpu: nvgpu: Move GPFIFO to sysmem

Kickoff latencies when GPFIFO is in vidmem grow significantly as
function of number of GPFIFO entries. Move GPFIFO to sysmem to
improve kickoff latency.

Bug 1848369

Change-Id: Ie95d10df26b4f1370f7250a8fbf0f7ef0211df32
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
(cherry-picked from commit 897cb579a759bbe8455ce368413979e91eb0d475)
Reviewed-on: http://git-master/r/1281564
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index be01e0e9..5e6ddb2e 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -1769,7 +1769,7 @@ int gk20a_alloc_channel_gpfifo(struct channel_gk20a *c,
                 return -EEXIST;
         }
 
-        err = gk20a_gmmu_alloc_map(ch_vm,
+        err = gk20a_gmmu_alloc_map_sys(ch_vm,
                         gpfifo_size * sizeof(struct nvgpu_gpfifo),
                         &c->gpfifo.mem);
         if (err) {