gpu: nvgpu: gv11b: implement gfxp wfi controls

/sys/devices/gpu.0/gfxp_wfi_timeout_unit
usec - microseconds
sysclk - gpu clock count

Treat gr_fe_gfxp_wfi_timeout_r as context-switched
register on gv11b.

Set default gfxp_wfi_timeout to 100 usec to match
gp10b at 1GHz.

bug 1888344

Signed-off-by: Kirill Artamonov <kartamonov@nvidia.com>
Change-Id: I7fa64ce6912ae861244856807543b17bd7a26bed
Reviewed-on: https://git-master.nvidia.com/r/1651517
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/gk20a/gr_gk20a.h b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
index 5c638a8d..3fcba678 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
@@ -377,6 +377,7 @@ struct gr_gk20a {
         u32 czf_bypass;
         u32 pd_max_batches;
         u32 gfxp_wfi_timeout_count;
+        u32 gfxp_wfi_timeout_unit;
 
         struct gr_ctx_buffer_desc global_ctx_buffer[NR_GLOBAL_CTX_BUF];