gpu: nvgpu: Add mem usage to page allocator debug

Add the amount of memory used to the page allocator debug dump.

Change-Id: Icd4b4a0489068aaa3f60221b792de7f8dbf0092c
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1543695
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/mm/page_allocator.c b/drivers/gpu/nvgpu/common/mm/page_allocator.c
index 3f4f3706..0eda13ec 100644
--- a/drivers/gpu/nvgpu/common/mm/page_allocator.c
+++ b/drivers/gpu/nvgpu/common/mm/page_allocator.c
@@ -777,6 +777,16 @@ static void nvgpu_page_print_stats(struct nvgpu_allocator *__a,
         __alloc_pstat(s, __a, "  pages freed    %lld\n", a->pages_freed);
         __alloc_pstat(s, __a, "\n");
 
+        __alloc_pstat(s, __a, "Page size:       %lld KB\n",
+                      a->page_size >> 10);
+        __alloc_pstat(s, __a, "Total pages:     %lld (%lld MB)\n",
+                      a->length / a->page_size,
+                      a->length >> 20);
+        __alloc_pstat(s, __a, "Available pages: %lld (%lld MB)\n",
+                      nvgpu_alloc_space(&a->source_allocator) / a->page_size,
+                      nvgpu_alloc_space(&a->source_allocator) >> 20);
+        __alloc_pstat(s, __a, "\n");
+
         /*
          * Slab info.
          */