gpu: nvgpu: Move FB MMU query to FB HAL

Move queries of FB MMU configuration to FB HAL. Also use g->ltc_count
instead of reading the number of LTCs from FB. These changes together
remove last direct uses of FB registers from GR.

JIRA NVGPU-714

Change-Id: I1b4b46fc2f636f5c1904e4174040a47a27948999
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1773076
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/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 4f02ce23..23ed2f15 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -505,6 +505,10 @@ struct gpu_ops {
                 void (*init_kind_attr)(struct gk20a *g);
                 void (*set_mmu_page_size)(struct gk20a *g);
                 bool (*set_use_full_comp_tag_line)(struct gk20a *g);
+                u32 (*mmu_ctrl)(struct gk20a *g);
+                u32 (*mmu_debug_ctrl)(struct gk20a *g);
+                u32 (*mmu_debug_wr)(struct gk20a *g);
+                u32 (*mmu_debug_rd)(struct gk20a *g);
 
                 /*
                  * Compression tag line coverage. When mapping a compressible