diff options
| author | Yuanyuan Liu <yuanliu@codeaurora.org> | 2016-08-16 13:39:17 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2016-09-21 17:08:03 -0700 |
| commit | 137755f15971132cbeeb644efdd8bf3c923e1677 (patch) | |
| tree | f063372f9136821a27922f9907101b23b2aa236b /core | |
| parent | 5ef6bfef5b766275b109b200721987fd8de18b0a (diff) | |
qcacld-3.0: Provide PLD APIs for SMMU operations
Proivde PLD wrapper APIs for getting SMMU mapping
context and mapping SMMU to a specific physical address.
Change-Id: I3feb61b26c839547e4d050f62963e64f5ca062a7
CRs-Fixed: 1057714
Diffstat (limited to 'core')
| -rw-r--r-- | core/pld/inc/pld_common.h | 4 | ||||
| -rw-r--r-- | core/pld/src/pld_common.c | 59 | ||||
| -rw-r--r-- | core/pld/src/pld_snoc.h | 18 |
3 files changed, 80 insertions, 1 deletions
diff --git a/core/pld/inc/pld_common.h b/core/pld/inc/pld_common.h index d2cfdd7ebb72..3127fdd8a144 100644 --- a/core/pld/inc/pld_common.h +++ b/core/pld/inc/pld_common.h @@ -394,5 +394,7 @@ int pld_athdiag_read(struct device *dev, uint32_t offset, uint32_t memtype, uint32_t datalen, uint8_t *output); int pld_athdiag_write(struct device *dev, uint32_t offset, uint32_t memtype, uint32_t datalen, uint8_t *input); - +void *pld_smmu_get_mapping(struct device *dev); +int pld_smmu_map(struct device *dev, phys_addr_t paddr, + uint32_t *iova_addr, size_t size); #endif diff --git a/core/pld/src/pld_common.c b/core/pld/src/pld_common.c index 60ea7cecf88b..7c9372ed88c8 100644 --- a/core/pld/src/pld_common.c +++ b/core/pld/src/pld_common.c @@ -1490,3 +1490,62 @@ int pld_athdiag_write(struct device *dev, uint32_t offset, return ret; } + +/** + * pld_smmu_get_mapping() - Get SMMU mapping context + * @dev: device + * + * Return: Pointer to the mapping context + */ +void *pld_smmu_get_mapping(struct device *dev) +{ + void *ptr = NULL; + enum pld_bus_type type = pld_get_bus_type(dev); + + switch (type) { + case PLD_BUS_TYPE_SNOC: + ptr = pld_snoc_smmu_get_mapping(dev); + break; + case PLD_BUS_TYPE_PCIE: + pr_err("Not supported on type %d\n", type); + break; + default: + pr_err("Invalid device type %d\n", type); + break; + } + + return ptr; +} + +/** + * pld_smmu_map() - Map SMMU + * @dev: device + * @paddr: physical address that needs to map to + * @iova_addr: IOVA address + * @size: size to be mapped + * + * Return: 0 for success + * Non zero failure code for errors + */ +int pld_smmu_map(struct device *dev, phys_addr_t paddr, + uint32_t *iova_addr, size_t size) +{ + int ret = 0; + enum pld_bus_type type = pld_get_bus_type(dev); + + switch (type) { + case PLD_BUS_TYPE_SNOC: + ret = pld_snoc_smmu_map(dev, paddr, iova_addr, size); + break; + case PLD_BUS_TYPE_PCIE: + pr_err("Not supported on type %d\n", type); + ret = -ENODEV; + break; + default: + pr_err("Invalid device type %d\n", type); + ret = -EINVAL; + break; + } + + return ret; +} diff --git a/core/pld/src/pld_snoc.h b/core/pld/src/pld_snoc.h index b97d632b4461..9c48da418bab 100644 --- a/core/pld/src/pld_snoc.h +++ b/core/pld/src/pld_snoc.h @@ -121,6 +121,15 @@ static inline int pld_snoc_athdiag_write(struct device *dev, uint32_t offset, { return 0; } +static inline void *pld_snoc_smmu_get_mapping(struct device *dev) +{ + return NULL; +} +static inline int pld_snoc_smmu_map(struct device *dev, phys_addr_t paddr, + uint32_t *iova_addr, size_t size) +{ + return 0; +} #else int pld_snoc_register_driver(void); void pld_snoc_unregister_driver(void); @@ -155,5 +164,14 @@ static inline int pld_snoc_athdiag_write(struct device *dev, uint32_t offset, { return icnss_athdiag_write(dev, offset, memtype, datalen, input); } +static inline void *pld_snoc_smmu_get_mapping(struct device *dev) +{ + return icnss_smmu_get_mapping(dev); +} +static inline int pld_snoc_smmu_map(struct device *dev, phys_addr_t paddr, + uint32_t *iova_addr, size_t size) +{ + return icnss_smmu_map(dev, paddr, iova_addr, size); +} #endif #endif |