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iommu: Tidy up window attributes

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The external interface to get/set window attributes is already
abstracted behind iommu_domain_{get,set}_attr(), so there's no real
reason for the internal interface to be different. Since we only have
one window-based driver anyway, clean up the core code by just moving
the DOMAIN_ATTR_WINDOWS handling directly into the PAMU driver.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Robin Murphy 2018-09-19 11:12:57 +01:00 committed by Joerg Roedel
parent 7adb562c3e
commit 701d8a624a
2 changed files with 20 additions and 20 deletions
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20
drivers/iommu/fsl_pamu_domain.c
View File

@ -818,6 +818,7 @@ static int fsl_pamu_set_domain_attr(struct iommu_domain *domain,
enum iommu_attr attr_type, void *data)
{
struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain);
u32 *count;
int ret = 0;
switch (attr_type) {
@ -829,6 +830,15 @@ static int fsl_pamu_set_domain_attr(struct iommu_domain *domain,
break;
case DOMAIN_ATTR_FSL_PAMU_ENABLE:
ret = configure_domain_dma_state(dma_domain, *(int *)data);
break;
case DOMAIN_ATTR_WINDOWS:
count = data;
if (domain->ops->domain_set_windows != NULL)
ret = domain->ops->domain_set_windows(domain, *count);
else
ret = -ENODEV;
break;
default:
pr_debug("Unsupported attribute type\n");
@ -843,6 +853,7 @@ static int fsl_pamu_get_domain_attr(struct iommu_domain *domain,
enum iommu_attr attr_type, void *data)
{
struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain);
u32 *count;
int ret = 0;
switch (attr_type) {
@ -855,6 +866,15 @@ static int fsl_pamu_get_domain_attr(struct iommu_domain *domain,
break;
case DOMAIN_ATTR_FSL_PAMUV1:
*(int *)data = DOMAIN_ATTR_FSL_PAMUV1;
break;
case DOMAIN_ATTR_WINDOWS:
count = data;
if (domain->ops->domain_get_windows != NULL)
*count = domain->ops->domain_get_windows(domain);
else
ret = -ENODEV;
break;
default:
pr_debug("Unsupported attribute type\n");

20
drivers/iommu/iommu.c
View File

@ -1805,7 +1805,6 @@ int iommu_domain_get_attr(struct iommu_domain *domain,
struct iommu_domain_geometry *geometry;
bool *paging;
int ret = 0;
u32 *count;
switch (attr) {
case DOMAIN_ATTR_GEOMETRY:
@ -1816,15 +1815,6 @@ int iommu_domain_get_attr(struct iommu_domain *domain,
case DOMAIN_ATTR_PAGING:
paging = data;
*paging = (domain->pgsize_bitmap != 0UL);
break;
case DOMAIN_ATTR_WINDOWS:
count = data;
if (domain->ops->domain_get_windows != NULL)
*count = domain->ops->domain_get_windows(domain);
else
ret = -ENODEV;
break;
default:
if (!domain->ops->domain_get_attr)
@ -1841,18 +1831,8 @@ int iommu_domain_set_attr(struct iommu_domain *domain,
enum iommu_attr attr, void *data)
{
int ret = 0;
u32 *count;
switch (attr) {
case DOMAIN_ATTR_WINDOWS:
count = data;
if (domain->ops->domain_set_windows != NULL)
ret = domain->ops->domain_set_windows(domain, *count);
else
ret = -ENODEV;
break;
default:
if (domain->ops->domain_set_attr == NULL)
return -EINVAL;