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Merge branch 'vmwgfx-fixes-5.1' of git://people.freedesktop.org/~thomash/linux into drm-fixes 

A single fix for a layer violation requested by Cristoph.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425204100.3982-1-thellstrom@vmware.com
hifive-unleashed-5.1
Dave Airlie 2019-04-26 10:30:17 +10:00
parent 528ffbfe64 81103355b1
commit a35d9d6a86
1 changed files with 5 additions and 28 deletions
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33
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
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@ -545,30 +545,14 @@ static void vmw_get_initial_size(struct vmw_private *dev_priv)
dev_priv->initial_height = height;
}
/**
* vmw_assume_iommu - Figure out whether coherent dma-remapping might be
* taking place.
* @dev: Pointer to the struct drm_device.
*
* Return: true if iommu present, false otherwise.
*/
static bool vmw_assume_iommu(struct drm_device *dev)
{
const struct dma_map_ops *ops = get_dma_ops(dev->dev);
return !dma_is_direct(ops) && ops &&
ops->map_page != dma_direct_map_page;
}
/**
* vmw_dma_select_mode - Determine how DMA mappings should be set up for this
* system.
*
* @dev_priv: Pointer to a struct vmw_private
*
* This functions tries to determine the IOMMU setup and what actions
* need to be taken by the driver to make system pages visible to the
* device.
* This functions tries to determine what actions need to be taken by the
* driver to make system pages visible to the device.
* If this function decides that DMA is not possible, it returns -EINVAL.
* The driver may then try to disable features of the device that require
* DMA.
@ -578,23 +562,16 @@ static int vmw_dma_select_mode(struct vmw_private *dev_priv)
static const char *names[vmw_dma_map_max] = {
[vmw_dma_phys] = "Using physical TTM page addresses.",
[vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
[vmw_dma_map_populate] = "Keeping DMA mappings.",
[vmw_dma_map_populate] = "Caching DMA mappings.",
[vmw_dma_map_bind] = "Giving up DMA mappings early."};
if (vmw_force_coherent)
dev_priv->map_mode = vmw_dma_alloc_coherent;
else if (vmw_assume_iommu(dev_priv->dev))
dev_priv->map_mode = vmw_dma_map_populate;
else if (!vmw_force_iommu)
dev_priv->map_mode = vmw_dma_phys;
else if (IS_ENABLED(CONFIG_SWIOTLB) && swiotlb_nr_tbl())
dev_priv->map_mode = vmw_dma_alloc_coherent;
else if (vmw_restrict_iommu)
dev_priv->map_mode = vmw_dma_map_bind;
else
dev_priv->map_mode = vmw_dma_map_populate;
if (dev_priv->map_mode == vmw_dma_map_populate && vmw_restrict_iommu)
dev_priv->map_mode = vmw_dma_map_bind;
/* No TTM coherent page pool? FIXME: Ask TTM instead! */
if (!(IS_ENABLED(CONFIG_SWIOTLB) || IS_ENABLED(CONFIG_INTEL_IOMMU)) &&
(dev_priv->map_mode == vmw_dma_alloc_coherent))