gpu: nvgpu: use 4K hole for pmu VM

bug N/A

with 128MB hole we are running into PDE
errors when 64K big page is used instead
of 128k

Signed-off-by: Vijayakumar <vsubbu@nvidia.com>

Change-Id: Id887b32484e2114a8707e7d534e6ebf5e108b83f
Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/733497
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/737532
Reviewed-by: Alexander Van Brunt <avanbrunt@nvidia.com>
Tested-by: Alexander Van Brunt <avanbrunt@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
index 4c0a773c..452e064e 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
@@ -2784,7 +2784,7 @@ static int gk20a_init_system_vm(struct mm_gk20a *mm)
         gk20a_dbg_info("pmu vm size = 0x%x", mm->pmu.aperture_size);
 
         gk20a_init_vm(mm, vm, big_page_size,
-                      SZ_128K << 10, GK20A_PMU_VA_SIZE, false, "system");
+                      SZ_4K, GK20A_PMU_VA_SIZE, false, "system");
 
         err = gk20a_alloc_inst_block(g, inst_block);
         if (err)