gpu: nvgpu: Pre-Population of zbc entries

The default zbc entries were never populated in zbc HW table
because the conditional flag "gr->sw_ready" was always set thus
avoided the zbc default loading function call. Now zbc default
loading would happen only during boot time in sw structure.Hw
zbc regs would be loaded from that structure every time a
railgate exit happens.

Bug 1580210

Change-Id: Ie3e40738cbc84cf724c3f3871f15b17a5c84025a
Signed-off-by: Sujeet Baranwal <sbaranwal@nvidia.com>
Reviewed-on: http://git-master/r/662306
Reviewed-by: Sami Kiminki <skiminki@nvidia.com>
Tested-by: Lauri Peltonen <lpeltonen@nvidia.com>
Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/hw_gr_gk20a.h b/drivers/gpu/nvgpu/gk20a/hw_gr_gk20a.h
index f89bb2a4..4e15af5f 100644
--- a/drivers/gpu/nvgpu/gk20a/hw_gr_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/hw_gr_gk20a.h
@@ -1350,6 +1350,10 @@ static inline u32 gr_ds_zbc_color_fmt_val_rf32_gf32_bf32_af32_v(void)
 {
         return 0x00000004;
 }
+static inline u32 gr_ds_zbc_color_fmt_val_a8_b8_g8_r8_v(void)
+{
+        return 0x00000028;
+}
 static inline u32 gr_ds_zbc_z_r(void)
 {
         return 0x00405818;