diff options
| author | Diana Craciun <diana.craciun@nxp.com> | 2019-11-18 16:32:08 +0200 |
|---|---|---|
| committer | Diana Craciun <diana.craciun@nxp.com> | 2019-11-26 11:42:23 +0200 |
| commit | 9e93d71a3e111349a6fb0f63beb3e9027ed818b7 (patch) | |
| tree | 196afa8fa3095a8d157a582f0428438b2c4de00c /drivers/vfio | |
| parent | 6f5a90ce3530e2cd2bfefe36c3de7885aa49563e (diff) | |
vfio/fsl-mc: Map the VFIO region according to the flags received from mc firmware
There are some VFIO regions which are cacheable (QMAN CENA region).
These regions should be mapped cacheable.
Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/fsl-mc/vfio_fsl_mc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c b/drivers/vfio/fsl-mc/vfio_fsl_mc.c index 402644a90e47..f432bd13f349 100644 --- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c @@ -106,6 +106,7 @@ static int vfio_fsl_mc_regions_init(struct vfio_fsl_mc_device *vdev) vdev->regions[i].flags |= VFIO_REGION_INFO_FLAG_READ; if (!(mc_dev->regions[i].flags & IORESOURCE_READONLY)) vdev->regions[i].flags |= VFIO_REGION_INFO_FLAG_WRITE; + vdev->regions[i].type = mc_dev->regions[i].flags & IORESOURCE_BITS; } vdev->num_regions = mc_dev->obj_desc.region_count; @@ -451,7 +452,12 @@ static int vfio_fsl_mc_mmap_mmio(struct vfio_fsl_mc_region region, if (region.size < PAGE_SIZE || base + size > region.size) return -EINVAL; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + if (region.type & DPRC_REGION_CACHEABLE) { + if (!(region.type & DPRC_REGION_SHAREABLE)) + vma->vm_page_prot = pgprot_cached_ns(vma->vm_page_prot); + } else + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_pgoff = (region.addr >> PAGE_SHIFT) + pgoff; return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, |