gpu: nvgpu: Move max_css_buffer_size to gr_gk20a

max_css_buffer_size was accessed directly from GPU characteristics,
which added a dependency to Linux. Move the field to gr_gk20a and
copy it to GPU characteristics at query time.

JIRA NVGPU-259

Change-Id: Ied19e33bf1a79a9ce45e33df57fe5bbe3a3c4f9d
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1593689
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Peter Daifuku <pdaifuku@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/gm20b/vgpu_gr_gm20b.c b/drivers/gpu/nvgpu/vgpu/gm20b/vgpu_gr_gm20b.c
index fca6525a..0e440241 100644
--- a/drivers/gpu/nvgpu/vgpu/gm20b/vgpu_gr_gm20b.c
+++ b/drivers/gpu/nvgpu/vgpu/gm20b/vgpu_gr_gm20b.c
@@ -35,11 +35,10 @@ void vgpu_gr_gm20b_init_cyclestats(struct gk20a *g)
         /* cyclestats not supported on vgpu */
         __nvgpu_set_enabled(g, NVGPU_SUPPORT_CYCLE_STATS, false);
 
-        g->gpu_characteristics.max_css_buffer_size =
-                                                vgpu_css_get_buffer_size(g);
+        g->gr.max_css_buffer_size = vgpu_css_get_buffer_size(g);
 
         /* snapshots not supported if the buffer size is 0 */
-        if (g->gpu_characteristics.max_css_buffer_size == 0)
+        if (g->gr.max_css_buffer_size == 0)
                 snapshots_supported = false;
 
         __nvgpu_set_enabled(g, NVGPU_SUPPORT_CYCLE_STATS_SNAPSHOT,