From: Tomer Tayar <ttayar@xxxxxxxxx>
The 'exported_size' member in 'struct hl_vm_phys_pg_pack' is used to
keep the exported dma-buf size, to be later used when the buffer is
mapped.
However it is possible that the same phys_pg_pack will be exported more
than once, and independently of when the mapping takes place.
Remove this member from the phys_pg_pack structure, and simply use the
size in the dma-buf object as the exported size when mapping.
Signed-off-by: Tomer Tayar <ttayar@xxxxxxxxx>
Reviewed-by: Oded Gabbay <ogabbay@xxxxxxxxxx>
Signed-off-by: Oded Gabbay <ogabbay@xxxxxxxxxx>
---
drivers/accel/habanalabs/common/habanalabs.h | 2 --
drivers/accel/habanalabs/common/memory.c | 3 +--
2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/accel/habanalabs/common/habanalabs.h b/drivers/accel/habanalabs/common/habanalabs.h
index 6f2cbd3c2e95..4c5d55c9109d 100644
--- a/drivers/accel/habanalabs/common/habanalabs.h
+++ b/drivers/accel/habanalabs/common/habanalabs.h
@@ -2159,7 +2159,6 @@ struct hl_vm_hw_block_list_node {
* @pages: the physical page array.
* @npages: num physical pages in the pack.
* @total_size: total size of all the pages in this list.
- * @exported_size: buffer exported size.
* @node: used to attach to deletion list that is used when all the allocations are cleared
* at the teardown of the context.
* @mapping_cnt: number of shared mappings.
@@ -2176,7 +2175,6 @@ struct hl_vm_phys_pg_pack {
u64 *pages;
u64 npages;
u64 total_size;
- u64 exported_size;
struct list_head node;
atomic_t mapping_cnt;
u32 asid;
diff --git a/drivers/accel/habanalabs/common/memory.c b/drivers/accel/habanalabs/common/memory.c
index c7e49cb383cf..27ab176c55c1 100644
--- a/drivers/accel/habanalabs/common/memory.c
+++ b/drivers/accel/habanalabs/common/memory.c
@@ -1719,7 +1719,7 @@ static struct sg_table *hl_map_dmabuf(struct dma_buf_attachment *attachment,
phys_pg_pack->pages,
phys_pg_pack->npages,
phys_pg_pack->page_size,
- phys_pg_pack->exported_size,
+ hl_dmabuf->dmabuf->size,
attachment->dev,
dir);
else
@@ -2044,7 +2044,6 @@ static int export_dmabuf_from_addr(struct hl_ctx *ctx, u64 addr, u64 size, u64 o
if (rc)
goto dec_memhash_export_cnt;
- phys_pg_pack->exported_size = size;
hl_dmabuf->phys_pg_pack = phys_pg_pack;
hl_dmabuf->memhash_hnode = hnode;
} else {
--
2.34.1
