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qcacmn: Add support for iommu domain in place of mapping

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Add support for iommu domain instead of mapping in
struct __qdf_device to support use of API
pld_smmu_get_domain in place of pld_smmu_get_mapping,
which is to be deprecated.

Change-Id: I89e9eea8ec7095a79493c0adca15c8034c21f79a
CRs-Fixed: 2464861
This commit is contained in:
Rakshith Suresh Patkar 2019-05-16 12:53:48 +05:30 • committed by nshrivas
commit 49f2d779be
2 changed files with 32 additions and 5 deletions
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33
qdf/linux/src/i_qdf_mem.h
View file

@ -211,13 +211,36 @@ static inline bool __qdf_mem_smmu_s1_enabled(qdf_device_t osdev)
}
#ifdef CONFIG_ARM_SMMU
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0))
/**
* __qdf_dev_get_domain() - get iommu domain from osdev
* @osdev: parent device instance
*
* Return: iommu domain
*/
static inline struct iommu_domain *
__qdf_dev_get_domain(qdf_device_t osdev)
{
return osdev->domain;
}
#else
static inline struct iommu_domain *
__qdf_dev_get_domain(qdf_device_t osdev)
{
if (osdev->iommu_mapping)
return osdev->iommu_mapping->domain;
return NULL;
}
#endif
/**
* __qdf_mem_paddr_from_dmaaddr() - get actual physical address from dma_addr
* @osdev: parent device instance
* @dma_addr: dma_addr
*
* Get actual physical address from dma_addr based on SMMU enablement status.
* IF SMMU Stage 1 tranlation is enabled, DMA APIs return IO virtual address
* IF SMMU Stage 1 translation is enabled, DMA APIs return IO virtual address
* (IOVA) otherwise returns physical address. So get SMMU physical address
* mapping from IOVA.
*
@ -227,12 +250,12 @@ static inline unsigned long
__qdf_mem_paddr_from_dmaaddr(qdf_device_t osdev,
qdf_dma_addr_t dma_addr)
{
struct dma_iommu_mapping *mapping;
struct iommu_domain *domain;
if (__qdf_mem_smmu_s1_enabled(osdev)) {
mapping = osdev->iommu_mapping;
if (mapping)
return iommu_iova_to_phys(mapping->domain, dma_addr);
domain = __qdf_dev_get_domain(osdev);
if (domain)
return iommu_iova_to_phys(domain, dma_addr);
}
return dma_addr;

4
qdf/linux/src/i_qdf_types.h
View file

@ -246,7 +246,11 @@ struct __qdf_device {
enum qdf_bus_type bus_type;
const struct hif_bus_id *bid;
bool smmu_s1_enabled;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0))
struct iommu_domain *domain;
#else
struct dma_iommu_mapping *iommu_mapping;
#endif
};
typedef struct __qdf_device *__qdf_device_t;