gpu: nvgpu: Add class numbers to characteristics

Some kernel APIs rely on user space knowing class numbers. Allow
querying the numbers from kernel.

Bug 1567274

Change-Id: Idec2fe8ee983ee74bcbf9dfc98f71bbcc1492cfb
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/594402

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/hal_gm20b.c b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
index 2b534816..e95f8878 100644
--- a/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
@@ -83,8 +83,11 @@ static struct gpu_ops gm20b_ops = {
         }
 };
 
-int gm20b_init_hal(struct gpu_ops *gops)
+int gm20b_init_hal(struct gk20a *g)
 {
+        struct gpu_ops *gops = &g->ops;
+        struct nvgpu_gpu_characteristics *c = &g->gpu_characteristics;
+
         *gops = gm20b_ops;
 #ifdef CONFIG_TEGRA_ACR
         if (tegra_platform_is_linsim()) {
@@ -127,5 +130,12 @@ int gm20b_init_hal(struct gpu_ops *gops)
         gm20b_init_regops(gops);
         gops->name = "gm20b";
 
+        c->twod_class = FERMI_TWOD_A;
+        c->threed_class = MAXWELL_B;
+        c->compute_class = MAXWELL_COMPUTE_B;
+        c->gpfifo_class = MAXWELL_CHANNEL_GPFIFO_A;
+        c->inline_to_memory_class = KEPLER_INLINE_TO_MEMORY_B;
+        c->dma_copy_class = MAXWELL_DMA_COPY_A;
+
         return 0;
 }