[PATCH v2 1/2] gpudev: add GPU page_size to info

[eagostini at nvidia.com]

From: Elena Agostini <eagostini at nvidia.com>

Page alignment on the GPU can be different from
the CPU page alignment.

Fixes: 9b8cae4d991e ("gpudev: use CPU mapping in communication list")
Signed-off-by: Elena Agostini <eagostini at nvidia.com>
---
 drivers/gpu/cuda/cuda.c | 4 ++++
 lib/gpudev/rte_gpudev.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/cuda/cuda.c b/drivers/gpu/cuda/cuda.c
index cf9e59535c..8505d39d64 100644
--- a/drivers/gpu/cuda/cuda.c
+++ b/drivers/gpu/cuda/cuda.c
@@ -523,6 +523,8 @@ cuda_dev_info_get(struct rte_gpu *dev, struct rte_gpu_info *info)
 		}
 		dev->mpshared->info.total_memory = parent_info.total_memory;
 
+		dev->mpshared->info.page_size = parent_info.page_size;
+
 		/*
 		 * GPU Device private info
 		 */
@@ -1173,6 +1175,8 @@ cuda_gpu_probe(__rte_unused struct rte_pci_driver *pci_drv, struct rte_pci_devic
 		return -rte_errno;
 	}
 
+	dev->mpshared->info.page_size = (size_t)GPU_PAGE_SIZE;
+
 	/*
 	 * GPU Device private info
 	 */
diff --git a/lib/gpudev/rte_gpudev.h b/lib/gpudev/rte_gpudev.h
index 7e2401a4b7..971aeacfff 100644
--- a/lib/gpudev/rte_gpudev.h
+++ b/lib/gpudev/rte_gpudev.h
@@ -61,6 +61,8 @@ struct rte_gpu_info {
 	size_t total_memory;
 	/* Local NUMA memory ID. -1 if unknown. */
 	int16_t numa_node;
+	/* Get GPU memory page size. */
+	size_t page_size;
 };
 
 /** Flags passed in notification callback. */
-- 
2.17.1