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>
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
index 155b1fd..1ad118c 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;
+}
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
index 6d64685..2443587 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
@@ -44,5 +44,6 @@ struct etnaviv_cmdbuf {
};
u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf);
+dma_addr_t etnaviv_cmdbuf_get_pa(struct etnaviv_cmdbuf *buf);
#endif /* __ETNAVIV_CMDBUF_H__ */
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index 6b3ca97..5b6decf 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -176,7 +176,8 @@ static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu, struct seq_file *m)
u32 i;
seq_printf(m, "virt %p - phys 0x%llx - free 0x%08x\n",
- buf->vaddr, (u64)buf->paddr, size - buf->user_size);
+ buf->vaddr, (u64)etnaviv_cmdbuf_get_pa(buf),
+ size - buf->user_size);
for (i = 0; i < size / 4; i++) {
if (i && !(i % 4))
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
index 4e68e6d..cbe447a 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
@@ -255,7 +255,8 @@ void etnaviv_iommuv2_restore(struct etnaviv_gpu *gpu)
prefetch = etnaviv_buffer_config_mmuv2(gpu,
(u32)etnaviv_domain->mtlb_dma,
(u32)etnaviv_domain->bad_page_dma);
- etnaviv_gpu_start_fe(gpu, gpu->buffer->paddr, prefetch);
+ etnaviv_gpu_start_fe(gpu, (u32)etnaviv_cmdbuf_get_pa(gpu->buffer),
+ prefetch);
etnaviv_gpu_wait_idle(gpu, 100);
gpu_write(gpu, VIVS_MMUv2_CONTROL, VIVS_MMUv2_CONTROL_ENABLE);