diff options
Diffstat (limited to 'drivers/iommu/omap-iovmm.c')
| -rw-r--r-- | drivers/iommu/omap-iovmm.c | 62 |
1 files changed, 33 insertions, 29 deletions
diff --git a/drivers/iommu/omap-iovmm.c b/drivers/iommu/omap-iovmm.c index 996bec0b4a2b..5e7f97dc76ef 100644 --- a/drivers/iommu/omap-iovmm.c +++ b/drivers/iommu/omap-iovmm.c @@ -191,7 +191,8 @@ static inline void vunmap_sg(const void *va) vunmap(va); } -static struct iovm_struct *__find_iovm_area(struct iommu *obj, const u32 da) +static struct iovm_struct *__find_iovm_area(struct omap_iommu *obj, + const u32 da) { struct iovm_struct *tmp; @@ -213,12 +214,12 @@ static struct iovm_struct *__find_iovm_area(struct iommu *obj, const u32 da) } /** - * find_iovm_area - find iovma which includes @da + * omap_find_iovm_area - find iovma which includes @da * @da: iommu device virtual address * * Find the existing iovma starting at @da */ -struct iovm_struct *find_iovm_area(struct iommu *obj, u32 da) +struct iovm_struct *omap_find_iovm_area(struct omap_iommu *obj, u32 da) { struct iovm_struct *area; @@ -228,13 +229,13 @@ struct iovm_struct *find_iovm_area(struct iommu *obj, u32 da) return area; } -EXPORT_SYMBOL_GPL(find_iovm_area); +EXPORT_SYMBOL_GPL(omap_find_iovm_area); /* * This finds the hole(area) which fits the requested address and len * in iovmas mmap, and returns the new allocated iovma. */ -static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da, +static struct iovm_struct *alloc_iovm_area(struct omap_iommu *obj, u32 da, size_t bytes, u32 flags) { struct iovm_struct *new, *tmp; @@ -309,7 +310,7 @@ found: return new; } -static void free_iovm_area(struct iommu *obj, struct iovm_struct *area) +static void free_iovm_area(struct omap_iommu *obj, struct iovm_struct *area) { size_t bytes; @@ -325,14 +326,14 @@ static void free_iovm_area(struct iommu *obj, struct iovm_struct *area) } /** - * da_to_va - convert (d) to (v) + * omap_da_to_va - convert (d) to (v) * @obj: objective iommu * @da: iommu device virtual address * @va: mpu virtual address * * Returns mpu virtual addr which corresponds to a given device virtual addr */ -void *da_to_va(struct iommu *obj, u32 da) +void *omap_da_to_va(struct omap_iommu *obj, u32 da) { void *va = NULL; struct iovm_struct *area; @@ -350,7 +351,7 @@ out: return va; } -EXPORT_SYMBOL_GPL(da_to_va); +EXPORT_SYMBOL_GPL(omap_da_to_va); static void sgtable_fill_vmalloc(struct sg_table *sgt, void *_va) { @@ -364,7 +365,7 @@ static void sgtable_fill_vmalloc(struct sg_table *sgt, void *_va) const size_t bytes = PAGE_SIZE; /* - * iommu 'superpage' isn't supported with 'iommu_vmalloc()' + * iommu 'superpage' isn't supported with 'omap_iommu_vmalloc()' */ pg = vmalloc_to_page(va); BUG_ON(!pg); @@ -443,7 +444,7 @@ err_out: } /* release 'da' <-> 'pa' mapping */ -static void unmap_iovm_area(struct iommu_domain *domain, struct iommu *obj, +static void unmap_iovm_area(struct iommu_domain *domain, struct omap_iommu *obj, struct iovm_struct *area) { u32 start; @@ -480,7 +481,7 @@ static void unmap_iovm_area(struct iommu_domain *domain, struct iommu *obj, /* template function for all unmapping */ static struct sg_table *unmap_vm_area(struct iommu_domain *domain, - struct iommu *obj, const u32 da, + struct omap_iommu *obj, const u32 da, void (*fn)(const void *), u32 flags) { struct sg_table *sgt = NULL; @@ -521,7 +522,7 @@ out: return sgt; } -static u32 map_iommu_region(struct iommu_domain *domain, struct iommu *obj, +static u32 map_iommu_region(struct iommu_domain *domain, struct omap_iommu *obj, u32 da, const struct sg_table *sgt, void *va, size_t bytes, u32 flags) { @@ -555,7 +556,8 @@ err_alloc_iovma: return err; } -static inline u32 __iommu_vmap(struct iommu_domain *domain, struct iommu *obj, +static inline u32 +__iommu_vmap(struct iommu_domain *domain, struct omap_iommu *obj, u32 da, const struct sg_table *sgt, void *va, size_t bytes, u32 flags) { @@ -563,7 +565,7 @@ static inline u32 __iommu_vmap(struct iommu_domain *domain, struct iommu *obj, } /** - * iommu_vmap - (d)-(p)-(v) address mapper + * omap_iommu_vmap - (d)-(p)-(v) address mapper * @obj: objective iommu * @sgt: address of scatter gather table * @flags: iovma and page property @@ -571,7 +573,7 @@ static inline u32 __iommu_vmap(struct iommu_domain *domain, struct iommu *obj, * Creates 1-n-1 mapping with given @sgt and returns @da. * All @sgt element must be io page size aligned. */ -u32 iommu_vmap(struct iommu_domain *domain, struct iommu *obj, u32 da, +u32 omap_iommu_vmap(struct iommu_domain *domain, struct omap_iommu *obj, u32 da, const struct sg_table *sgt, u32 flags) { size_t bytes; @@ -600,22 +602,22 @@ u32 iommu_vmap(struct iommu_domain *domain, struct iommu *obj, u32 da, return da; } -EXPORT_SYMBOL_GPL(iommu_vmap); +EXPORT_SYMBOL_GPL(omap_iommu_vmap); /** - * iommu_vunmap - release virtual mapping obtained by 'iommu_vmap()' + * omap_iommu_vunmap - release virtual mapping obtained by 'omap_iommu_vmap()' * @obj: objective iommu * @da: iommu device virtual address * * Free the iommu virtually contiguous memory area starting at - * @da, which was returned by 'iommu_vmap()'. + * @da, which was returned by 'omap_iommu_vmap()'. */ struct sg_table * -iommu_vunmap(struct iommu_domain *domain, struct iommu *obj, u32 da) +omap_iommu_vunmap(struct iommu_domain *domain, struct omap_iommu *obj, u32 da) { struct sg_table *sgt; /* - * 'sgt' is allocated before 'iommu_vmalloc()' is called. + * 'sgt' is allocated before 'omap_iommu_vmalloc()' is called. * Just returns 'sgt' to the caller to free */ sgt = unmap_vm_area(domain, obj, da, vunmap_sg, @@ -624,10 +626,10 @@ iommu_vunmap(struct iommu_domain *domain, struct iommu *obj, u32 da) dev_dbg(obj->dev, "%s: No sgt\n", __func__); return sgt; } -EXPORT_SYMBOL_GPL(iommu_vunmap); +EXPORT_SYMBOL_GPL(omap_iommu_vunmap); /** - * iommu_vmalloc - (d)-(p)-(v) address allocator and mapper + * omap_iommu_vmalloc - (d)-(p)-(v) address allocator and mapper * @obj: objective iommu * @da: contiguous iommu virtual memory * @bytes: allocation size @@ -636,7 +638,8 @@ EXPORT_SYMBOL_GPL(iommu_vunmap); * Allocate @bytes linearly and creates 1-n-1 mapping and returns * @da again, which might be adjusted if 'IOVMF_DA_FIXED' is not set. */ -u32 iommu_vmalloc(struct iommu_domain *domain, struct iommu *obj, u32 da, +u32 +omap_iommu_vmalloc(struct iommu_domain *domain, struct omap_iommu *obj, u32 da, size_t bytes, u32 flags) { void *va; @@ -674,17 +677,18 @@ err_sgt_alloc: vfree(va); return da; } -EXPORT_SYMBOL_GPL(iommu_vmalloc); +EXPORT_SYMBOL_GPL(omap_iommu_vmalloc); /** - * iommu_vfree - release memory allocated by 'iommu_vmalloc()' + * omap_iommu_vfree - release memory allocated by 'omap_iommu_vmalloc()' * @obj: objective iommu * @da: iommu device virtual address * * Frees the iommu virtually continuous memory area starting at - * @da, as obtained from 'iommu_vmalloc()'. + * @da, as obtained from 'omap_iommu_vmalloc()'. */ -void iommu_vfree(struct iommu_domain *domain, struct iommu *obj, const u32 da) +void omap_iommu_vfree(struct iommu_domain *domain, struct omap_iommu *obj, + const u32 da) { struct sg_table *sgt; @@ -694,7 +698,7 @@ void iommu_vfree(struct iommu_domain *domain, struct iommu *obj, const u32 da) dev_dbg(obj->dev, "%s: No sgt\n", __func__); sgtable_free(sgt); } -EXPORT_SYMBOL_GPL(iommu_vfree); +EXPORT_SYMBOL_GPL(omap_iommu_vfree); static int __init iovmm_init(void) { |
