diff options
| author | Andrii Anisov <andrii_anisov@epam.com> | 2017-02-07 19:58:03 +0200 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | 6330040d8bd6d4fa7a1b573448967b2f893a2be2 (patch) | |
| tree | 9ff4ea9f4675072245649550e1110f083d815799 /include/xen | |
| parent | 8facb36699cf46a8c3634224c972afc6e9015544 (diff) | |
MLK-17701 swiotlb-xen: implement xen_swiotlb_get_sgtable callback
Signed-off-by: Andrii Anisov <andrii_anisov@epam.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
(cherry picked from commit 69369f52d28a34c84acb6f2a8a585e743441566a)
on 8QM A0, video play use ion to allocate buffer and mmap buffer,
there is a call dma_get_sgtable, but xen arm not implement that.
when playing video, GPU driver will use sg dma address, but because
of xen_swiotlb_get_sgtable not implemented, sg->amd_address is not
exactly the address that ion allocated. This patch fixes the issue.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Leonard Crestez <leonard.crestez@nxp.com>
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/swiotlb-xen.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h index 683057f79dca..1810b6d8d6ae 100644 --- a/include/xen/swiotlb-xen.h +++ b/include/xen/swiotlb-xen.h @@ -2,6 +2,7 @@ #define __LINUX_SWIOTLB_XEN_H #include <linux/dma-direction.h> +#include <linux/scatterlist.h> #include <linux/swiotlb.h> extern int xen_swiotlb_init(int verbose, bool early); @@ -63,4 +64,9 @@ extern int xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, unsigned long attrs); + +extern int +xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t handle, size_t size, + unsigned long attrs); #endif /* __LINUX_SWIOTLB_XEN_H */ |