gpu: nvgpu: track pending bytes for vidmem clears

Change clears_pending to bytes_pending and track accordingly the number
of bytes to be freed instead of the number of buffers. This, atomically
combined with the amount of space in the allocator, is the total amount
of free memory available.

Bug 200233138

Change-Id: Ibbb4e80a32728781ba19a74307d8a8ac1a4d7431
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1231422
(cherry picked from commit 025e765f312c253b201ecf2dbbe0f4972fe1d4bc)
Reviewed-on: http://git-master/r/1235957
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 75209063..b25a7789 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -424,7 +424,7 @@ struct mm_gk20a {
                 struct mutex clear_list_mutex;
 
                 struct work_struct clear_mem_worker;
-                atomic_t clears_pending;
+                atomic64_t bytes_pending;
         } vidmem;
 };