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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-07 02:18:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-07 02:18:07 +0000
commit6c080a1a353c6fc2590555ec7dd8982d1143d02d (patch)
tree5fb60c5cd3d6bb6496650d1605a3c51d09be2bf1 /drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
parentAdding debian version 6.1.85-1. (diff)
downloadlinux-6c080a1a353c6fc2590555ec7dd8982d1143d02d.tar.xz
linux-6c080a1a353c6fc2590555ec7dd8982d1143d02d.zip
Merging upstream version 6.1.90.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 9d7a1b710..53f63ad65 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -663,11 +663,12 @@ static int vmw_dma_select_mode(struct vmw_private *dev_priv)
[vmw_dma_map_populate] = "Caching DMA mappings.",
[vmw_dma_map_bind] = "Giving up DMA mappings early."};
- /* TTM currently doesn't fully support SEV encryption. */
- if (cc_platform_has(CC_ATTR_MEM_ENCRYPT))
- return -EINVAL;
-
- if (vmw_force_coherent)
+ /*
+ * When running with SEV we always want dma mappings, because
+ * otherwise ttm tt pool pages will bounce through swiotlb running
+ * out of available space.
+ */
+ if (vmw_force_coherent || cc_platform_has(CC_ATTR_MEM_ENCRYPT))
dev_priv->map_mode = vmw_dma_alloc_coherent;
else if (vmw_restrict_iommu)
dev_priv->map_mode = vmw_dma_map_bind;