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gpu: nvgpu: add compatibility version

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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
Reviewed-by: Stephen Warren <swarren@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Preetham Chandru R
2019-03-06 16:20:22 +05:30
committed by mobile promotions
parent aa72f2d03a
commit 8bbbd09caa
2 changed files with 32 additions and 0 deletions
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29
include/linux/nv-p2p.h
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@@ -30,6 +30,23 @@
#define NVIDIA_P2P_PINNED 0x1
#define NVIDIA_P2P_MAPPED 0x2
#define NVIDIA_P2P_MAJOR_VERSION_MASK 0xffff0000
#define NVIDIA_P2P_MINOR_VERSION_MASK 0x0000ffff
#define NVIDIA_P2P_MAJOR_VERSION(v) \
(((v) & NVIDIA_P2P_MAJOR_VERSION_MASK) >> 16)
#define NVIDIA_P2P_MINOR_VERSION(v) \
(((v) & NVIDIA_P2P_MINOR_VERSION_MASK))
#define NVIDIA_P2P_MAJOR_VERSION_MATCHES(p, v) \
(NVIDIA_P2P_MAJOR_VERSION((p)->version) == NVIDIA_P2P_MAJOR_VERSION(v))
#define NVIDIA_P2P_VERSION_COMPATIBLE(p, v) \
(NVIDIA_P2P_MAJOR_VERSION_MATCHES(p, v) && \
(NVIDIA_P2P_MINOR_VERSION((p)->version) >= \
(NVIDIA_P2P_MINOR_VERSION(v))))
enum nvidia_p2p_page_size_type {
NVIDIA_P2P_PAGE_SIZE_4KB = 0,
NVIDIA_P2P_PAGE_SIZE_64KB,
@@ -38,6 +55,7 @@ enum nvidia_p2p_page_size_type {
};
struct nvidia_p2p_page_table {
u32 version;
u32 page_size;
u64 size;
u32 entries;
@@ -54,6 +72,7 @@ struct nvidia_p2p_page_table {
};
struct nvidia_p2p_dma_mapping {
u32 version;
dma_addr_t *hw_address;
u32 *hw_len;
u32 entries;
@@ -64,6 +83,11 @@ struct nvidia_p2p_dma_mapping {
enum dma_data_direction direction;
};
#define NVIDIA_P2P_PAGE_TABLE_VERSION 0x00010000
#define NVIDIA_P2P_PAGE_TABLE_VERSION_COMPATIBLE(p) \
NVIDIA_P2P_VERSION_COMPATIBLE(p, NVIDIA_P2P_PAGE_TABLE_VERSION)
/*
* @brief
* Make the pages underlying a range of GPU virtual memory
@@ -124,6 +148,11 @@ int nvidia_p2p_put_pages(struct nvidia_p2p_page_table *page_table);
*/
int nvidia_p2p_free_page_table(struct nvidia_p2p_page_table *page_table);
#define NVIDIA_P2P_DMA_MAPPING_VERSION 0x00010000
#define NVIDIA_P2P_DMA_MAPPING_VERSION_COMPATIBLE(p) \
NVIDIA_P2P_VERSION_COMPATIBLE(p, NVIDIA_P2P_DMA_MAPPING_VERSION)
/*
* @brief
* Map the pages retrieved using nvidia_p2p_get_pages and