gpu: nvgpu: add compatibility version

Add compatibility version to page table and dma mapping structure.

Bug 200438879

Change-Id: I04b4601f71ae2b3e75843f39f5445ecca2b16677
Signed-off-by: Preetham Chandru R <pchandru@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2029086
(cherry picked from commit 8bbbd09caa06f7c0f17a48e129d4fd07ce6fa9be)
Reviewed-on: https://git-master.nvidia.com/r/2071427
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/nvidia_p2p.c b/drivers/gpu/nvgpu/os/linux/nvidia_p2p.c
index 2b0211da..87db8c5c 100644
--- a/drivers/gpu/nvgpu/os/linux/nvidia_p2p.c
+++ b/drivers/gpu/nvgpu/os/linux/nvidia_p2p.c
@@ -91,6 +91,7 @@ int nvidia_p2p_get_pages(u64 vaddr, u64 size,
                 goto free_pages;
         }
 
+        (*page_table)->version = NVIDIA_P2P_PAGE_TABLE_VERSION;
         (*page_table)->pages = pages;
         (*page_table)->entries = user_pages;
         (*page_table)->page_size = NVIDIA_P2P_PAGE_SIZE_4KB;
@@ -207,6 +208,8 @@ int nvidia_p2p_dma_map_pages(struct device *dev,
         if (ret) {
                 goto free_sgt;
         }
+
+        (*dma_mapping)->version = NVIDIA_P2P_DMA_MAPPING_VERSION;
         (*dma_mapping)->sgt = sgt;
         (*dma_mapping)->dev = dev;
         (*dma_mapping)->direction = direction;