mali_kbase: platform: Add per-process and global accounting for dma-buf pages

This adds dma_buf_pages alongside total_gpu_pages to track GPU
addressable dmabuf pages for each process and for complete device.

Bug: 191966412
Signed-off-by: Ankit Goyal <layog@google.com>
Change-Id: I29da69e469395d30e784ea9c2ffddcf6fab688fd

1 files changed, 6 insertions, 0 deletions

diff --git a/mali_kbase/mali_kbase_defs.h b/mali_kbase/mali_kbase_defs.h
index 13bba29..97c03cd 100644
--- a/mali_kbase/mali_kbase_defs.h
+++ b/mali_kbase/mali_kbase_defs.h
@@ -617,6 +617,9 @@ struct kbase_devfreq_queue_info {
  * @total_gpu_pages:    Total gpu pages allocated across all the contexts
  *                      of this process, it accounts for both native allocations
  *                      and dma_buf imported allocations.
+ * @dma_buf_pages:      Total dma_buf pages allocated across all the contexts
+ *                      of this process, native allocations can be accounted for
+ *                      by subtracting this from &total_gpu_pages.
  * @kctx_list:          List of kbase contexts created for the process.
  * @kprcs_node:         Node to a rb_tree, kbase_device will maintain a rb_tree
  *                      based on key tgid, kprcs_node is the node link to
@@ -630,6 +633,7 @@ struct kbase_devfreq_queue_info {
 struct kbase_process {
 	pid_t tgid;
 	size_t total_gpu_pages;
+	size_t dma_buf_pages;
 	struct list_head kctx_list;
 
 	struct rb_node kprcs_node;
@@ -926,6 +930,7 @@ struct kbase_process {
  *                          mapping and gpu memory usage at device level and
  *                          other one at process level.
  * @total_gpu_pages:        Total GPU pages used for the complete GPU device.
+ * @dma_buf_pages:          Total dma_buf pages used for GPU platform device.
  * @dma_buf_lock:           This mutex should be held while accounting for
  *                          @total_gpu_pages from imported dma buffers.
  * @gpu_mem_usage_lock:     This spinlock should be held while accounting
@@ -1206,6 +1211,7 @@ struct kbase_device {
 	struct rb_root dma_buf_root;
 
 	size_t total_gpu_pages;
+	size_t dma_buf_pages;
 	struct mutex dma_buf_lock;
 	spinlock_t gpu_mem_usage_lock;