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iommu: remove DOMAIN_ATTR_GEOMETRY

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The geometry information can be trivially queried from the iommu_domain
struture.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Li Yang <leoyang.li@nxp.com>
Link: https://lore.kernel.org/r/20210401155256.298656-16-hch@lst.de
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Christoph Hellwig 2021-04-01 17:52:51 +02:00 committed by Joerg Roedel
parent 9fb5fad562
commit bc9a05eef1
4 changed files with 18 additions and 39 deletions
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20
drivers/iommu/iommu.c
View File

@ -2667,23 +2667,9 @@ core_initcall(iommu_init);
int iommu_domain_get_attr(struct iommu_domain *domain,
enum iommu_attr attr, void *data)
{
struct iommu_domain_geometry *geometry;
int ret = 0;
switch (attr) {
case DOMAIN_ATTR_GEOMETRY:
geometry = data;
*geometry = domain->geometry;
break;
default:
if (!domain->ops->domain_get_attr)
return -EINVAL;
ret = domain->ops->domain_get_attr(domain, attr, data);
}
return ret;
if (!domain->ops->domain_get_attr)
return -EINVAL;
return domain->ops->domain_get_attr(domain, attr, data);
}
EXPORT_SYMBOL_GPL(iommu_domain_get_attr);

26
drivers/vfio/vfio_iommu_type1.c
View File

@ -2252,7 +2252,7 @@ static int vfio_iommu_type1_attach_group(void *iommu_data,
int ret;
bool resv_msi, msi_remap;
phys_addr_t resv_msi_base = 0;
struct iommu_domain_geometry geo;
struct iommu_domain_geometry *geo;
LIST_HEAD(iova_copy);
LIST_HEAD(group_resv_regions);
@ -2333,10 +2333,9 @@ static int vfio_iommu_type1_attach_group(void *iommu_data,
goto out_domain;
/* Get aperture info */
iommu_domain_get_attr(domain->domain, DOMAIN_ATTR_GEOMETRY, &geo);
if (vfio_iommu_aper_conflict(iommu, geo.aperture_start,
geo.aperture_end)) {
geo = &domain->domain->geometry;
if (vfio_iommu_aper_conflict(iommu, geo->aperture_start,
geo->aperture_end)) {
ret = -EINVAL;
goto out_detach;
}
@ -2359,8 +2358,8 @@ static int vfio_iommu_type1_attach_group(void *iommu_data,
if (ret)
goto out_detach;
ret = vfio_iommu_aper_resize(&iova_copy, geo.aperture_start,
geo.aperture_end);
ret = vfio_iommu_aper_resize(&iova_copy, geo->aperture_start,
geo->aperture_end);
if (ret)
goto out_detach;
@ -2493,7 +2492,6 @@ static void vfio_iommu_aper_expand(struct vfio_iommu *iommu,
struct list_head *iova_copy)
{
struct vfio_domain *domain;
struct iommu_domain_geometry geo;
struct vfio_iova *node;
dma_addr_t start = 0;
dma_addr_t end = (dma_addr_t)~0;
@ -2502,12 +2500,12 @@ static void vfio_iommu_aper_expand(struct vfio_iommu *iommu,
return;
list_for_each_entry(domain, &iommu->domain_list, next) {
iommu_domain_get_attr(domain->domain, DOMAIN_ATTR_GEOMETRY,
&geo);
if (geo.aperture_start > start)
start = geo.aperture_start;
if (geo.aperture_end < end)
end = geo.aperture_end;
struct iommu_domain_geometry *geo = &domain->domain->geometry;
if (geo->aperture_start > start)
start = geo->aperture_start;
if (geo->aperture_end < end)
end = geo->aperture_end;
}
/* Modify aperture limits. The new aper is either same or bigger */

10
drivers/vhost/vdpa.c
View File

@ -826,18 +826,14 @@ static void vhost_vdpa_free_domain(struct vhost_vdpa *v)
static void vhost_vdpa_set_iova_range(struct vhost_vdpa *v)
{
struct vdpa_iova_range *range = &v->range;
struct iommu_domain_geometry geo;
struct vdpa_device *vdpa = v->vdpa;
const struct vdpa_config_ops *ops = vdpa->config;
if (ops->get_iova_range) {
*range = ops->get_iova_range(vdpa);
} else if (v->domain &&
!iommu_domain_get_attr(v->domain,
DOMAIN_ATTR_GEOMETRY, &geo) &&
geo.force_aperture) {
range->first = geo.aperture_start;
range->last = geo.aperture_end;
} else if (v->domain && v->domain->geometry.force_aperture) {
range->first = v->domain->geometry.aperture_start;
range->last = v->domain->geometry.aperture_end;
} else {
range->first = 0;
range->last = ULLONG_MAX;

1
include/linux/iommu.h
View File

@ -107,7 +107,6 @@ enum iommu_cap {
*/
enum iommu_attr {
DOMAIN_ATTR_GEOMETRY,
DOMAIN_ATTR_NESTING, /* two stages of translation */
DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
DOMAIN_ATTR_IO_PGTABLE_CFG,