gpu: nvgpu: enable HWPM Mode-E context switch

- This patch enables HWPM Mode-E context switch for gv11b.
- Write new pm mode to context buffer header. Ucode use
this mode to enable mode-e context switch. This is Mode-B
context switch of PMs with Mode-E streamout on one context.
If this mode is set, Ucode makes sure that Mode-E pipe
(perfmons, routers, pma) is idle before it context switches PMs.
- This allows us to collect counters in a secure way
(i.e. on context basis) with stream out.
- For Mode-E ctxsw it is required that engine_sel
is set to 0xFFFFFFFF.
- Default 0 is a valid signal and causes problems.

Bug 2106999

Change-Id: Idc6380116a71ffd7ae348ceec68cb395b2eca5f6
Signed-off-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1818070
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_hal_gv11b.c b/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_hal_gv11b.c
index eac57433..1fc1b0f2 100644
--- a/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_hal_gv11b.c
+++ b/drivers/gpu/nvgpu/vgpu/gv11b/vgpu_hal_gv11b.c
@@ -81,6 +81,8 @@
 #include <gv11b/gr_ctx_gv11b.h>
 #include <gv11b/gr_gv11b.h>
 
+#include <gv100/gr_gv100.h>
+
 #include <nvgpu/enabled.h>
 #include <nvgpu/channel.h>
 
@@ -183,6 +185,8 @@ static const struct gpu_ops vgpu_gv11b_ops = {
                 .enable_exceptions = NULL,
                 .get_lrf_tex_ltc_dram_override = NULL,
                 .update_smpc_ctxsw_mode = vgpu_gr_update_smpc_ctxsw_mode,
+                .get_hw_accessor_stream_out_mode =
+                        gr_gv100_get_hw_accessor_stream_out_mode,
                 .update_hwpm_ctxsw_mode = vgpu_gr_update_hwpm_ctxsw_mode,
                 .record_sm_error_state = gv11b_gr_record_sm_error_state,
                 .clear_sm_error_state = vgpu_gr_clear_sm_error_state,