gpu: nvgpu: Add support for multiple PBDMAs

Added support for multiple PBDMAs handling during
fifo_pbdma_isr and gk20a_init_fifo_reset_enable_hw
use case.

JIRA DNVGPU-26

Change-Id: I5f013c5373f7a4b80a8de8863f0e175576ed4c22
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: http://git-master/r/1145591
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/hw_fifo_gk20a.h b/drivers/gpu/nvgpu/gk20a/hw_fifo_gk20a.h
index 07e2b4f8..c5c95cdf 100644
--- a/drivers/gpu/nvgpu/gk20a/hw_fifo_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/hw_fifo_gk20a.h
@@ -362,6 +362,10 @@ static inline u32 fifo_intr_pbdma_id_status_f(u32 v, u32 i)
 {
         return (v & 0x1) << (0 + i*1);
 }
+static inline u32 fifo_intr_pbdma_id_status_v(u32 r, u32 i)
+{
+        return (r >> (0 + i*1)) & 0x1;
+}
 static inline u32 fifo_intr_pbdma_id_status__size_1_v(void)
 {
         return 0x00000001;