gpu: nvgpu: gv11b: set 4byte payload size for sema

Default semaphore payload size is 16byte. Set it to 4 byte
to avoid double increment of associated sync point with
semaphore release.

Also removed extra 0 op function from syncpoint increment
command.

Bug 2066025

Change-Id: Ia282cc5625827d356b5ba963adb7b1b3c703a931
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1669714
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
index 9e60d9f7..ef76e76b 100644
--- a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
@@ -1803,16 +1803,14 @@ void gv11b_fifo_add_syncpt_incr_cmd(struct gk20a *g,
         /* semaphore_d */
         nvgpu_mem_wr32(g, cmd->mem, off++, 0x20010007);
 
-        /* operation: release, wfi */
+        /* operation: 4 byte payload, release, wfi */
         nvgpu_mem_wr32(g, cmd->mem, off++,
-                0x2 | ((wfi_cmd ? 0x0 : 0x1) << 20));
-        /* ignored */
-        nvgpu_mem_wr32(g, cmd->mem, off++, 0);
+                (0x1 << 24) | 0x2 | ((wfi_cmd ? 0x0 : 0x1) << 20));
 }
 
 u32 gv11b_fifo_get_syncpt_incr_cmd_size(bool wfi_cmd)
 {
-        return 9;
+        return 8;
 }
 #endif /* CONFIG_TEGRA_GK20A_NVHOST */