gpu: nvgpu: allocate from coherent pool

Maps memory coherently on devices that are connected to a coherent bus.

(1) Add code to be able to get the platform device node.
(2) Create a new flag to mark if the device is connected to a coherent bus
(3) Map memory coherently on coherent devices.

bug 2040331

Change-Id: Ide83a9261acdbbc6e9fef4fc5f38d6f9d0e5ab5b
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1633985
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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/gv100/hal_gv100.c b/drivers/gpu/nvgpu/gv100/hal_gv100.c
index a03ae03e..9c847a55 100644
--- a/drivers/gpu/nvgpu/gv100/hal_gv100.c
+++ b/drivers/gpu/nvgpu/gv100/hal_gv100.c
@@ -540,7 +540,7 @@ static const struct gpu_ops gv100_ops = {
                 .vm_bind_channel = gk20a_vm_bind_channel,
                 .fb_flush = gk20a_mm_fb_flush,
                 .l2_invalidate = gk20a_mm_l2_invalidate,
-                .l2_flush = gk20a_mm_l2_flush,
+                .l2_flush = gv11b_mm_l2_flush,
                 .cbc_clean = gk20a_mm_cbc_clean,
                 .set_big_page_size = gm20b_mm_set_big_page_size,
                 .get_big_page_sizes = gm20b_mm_get_big_page_sizes,