gpu: nvgpu: add remove_gr_sysfs gpu op

Add remove_gr_sys() op to gpu_ops to reverse steps
done in create_gr_sysfs().

Make gv11b_tegra_remove() specific to gv11b instead
to properly remove sysfs nodes. This also helps in
having gv11b specific remove steps.

Also, update platform remove function of dGPU i.e.
nvgpu_pci_tegra_remove() to remove sysfs nodes. This
adds parity with iGPU platform remove.

Bug 1987855

Change-Id: Ibbaffac5c24346709347f86444a951461894354d
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1735987
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/gr_gv11b.h b/drivers/gpu/nvgpu/gv11b/gr_gv11b.h
index fb4c8b69..a8dbd3a8 100644
--- a/drivers/gpu/nvgpu/gv11b/gr_gv11b.h
+++ b/drivers/gpu/nvgpu/gv11b/gr_gv11b.h
@@ -88,6 +88,7 @@ int gr_gv11b_alloc_buffer(struct vm_gk20a *vm, size_t size,
 void gr_gv11b_program_zcull_mapping(struct gk20a *g, u32 zcull_num_entries,
                                         u32 *zcull_map_tiles);
 void gr_gv11b_create_sysfs(struct gk20a *g);
+void gr_gv11b_remove_sysfs(struct gk20a *g);
 
 bool gr_gv11b_is_valid_class(struct gk20a *g, u32 class_num);
 bool gr_gv11b_is_valid_gfx_class(struct gk20a *g, u32 class_num);
diff --git a/drivers/gpu/nvgpu/gv11b/hal_gv11b.c b/drivers/gpu/nvgpu/gv11b/hal_gv11b.c
index 84d8a811..1a7f0874 100644
--- a/drivers/gpu/nvgpu/gv11b/hal_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/hal_gv11b.c
@@ -370,6 +370,7 @@ static const struct gpu_ops gv11b_ops = {
                 .set_bes_crop_debug4 = gr_gp10b_set_bes_crop_debug4,
 #ifdef CONFIG_SYSFS
                 .create_gr_sysfs = gr_gv11b_create_sysfs,
+                .remove_gr_sysfs = gr_gv11b_remove_sysfs,
 #endif
                 .set_ctxsw_preemption_mode = gr_gv11b_set_ctxsw_preemption_mode,
                 .is_etpc_addr = gv11b_gr_pri_is_etpc_addr,