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authorLucas Stach <l.stach@pengutronix.de>2017-01-16 17:00:08 +0100
committerLucas Stach <l.stach@pengutronix.de>2017-02-02 10:30:27 +0100
commit9912b4db7beae07cfa8d435530cddf375873c6f3 (patch)
tree88bb25244b988fff0bfb6c8e51e156cbdb983b2a /drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
parentdrm/etnaviv: wire up iova handling in new cmdbuf abstraction (diff)
downloadlinux-9912b4db7beae07cfa8d435530cddf375873c6f3.tar.xz
linux-9912b4db7beae07cfa8d435530cddf375873c6f3.zip
drm/etnaviv: get cmdbuf physical address through the cmdbuf abstraction
Don't allow IOMMUv2 to peek directly into the cmdbuf, but get the needed PA through a dedicated function. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c')
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
index 155b1fddca8e..1ad118c6c64e 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
@@ -57,3 +57,8 @@ u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf)
{
return etnaviv_iommu_get_cmdbuf_va(buf->gpu, buf);
}
+
+dma_addr_t etnaviv_cmdbuf_get_pa(struct etnaviv_cmdbuf *buf)
+{
+ return buf->paddr;
+}