gpu: nvgpu: add support for FECS VA

- On t186, ucode expects physical address to be
programmed for FECS trace buffer.
- On t194, ucode expects GPU VA to be programmed
for FECS trace buffer. This patch adds extra
support to handle this change for linux native.
- Increase the size of FECS trace buffer (as few
entries were getting dropped due to overflow of
FECS trace buffer.)
- This moves FECS trace buffer handling in global
context buffer.
- This adds extra check for updation of mailbox1
register. (Bug 200417403)

EVLR-2077

Change-Id: I7c3324ce9341976a1375e0afe6c53c424a053723
Signed-off-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1536028
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Nirav Patel <nipatel@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp106/hal_gp106.c b/drivers/gpu/nvgpu/gp106/hal_gp106.c
index 61c6cb0f..632f1063 100644
--- a/drivers/gpu/nvgpu/gp106/hal_gp106.c
+++ b/drivers/gpu/nvgpu/gp106/hal_gp106.c
@@ -834,6 +834,7 @@ int gp106_init_hal(struct gk20a *g)
         __nvgpu_set_enabled(g, NVGPU_PMU_PSTATE, true);
         __nvgpu_set_enabled(g, NVGPU_PMU_FECS_BOOTSTRAP_DONE, false);
         __nvgpu_set_enabled(g, NVGPU_SUPPORT_MULTIPLE_WPR, false);
+        __nvgpu_set_enabled(g, NVGPU_FECS_TRACE_VA, false);
 
         /* Read fuses to check if gpu needs to boot in secure/non-secure mode */
         if (gops->fuse.check_priv_security(g))