diff options
Diffstat (limited to 'drivers/iommu/fsl_pamu_domain.c')
| -rw-r--r-- | drivers/iommu/fsl_pamu_domain.c | 60 |
1 files changed, 32 insertions, 28 deletions
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c index ceebd287b660..1d452930c890 100644 --- a/drivers/iommu/fsl_pamu_domain.c +++ b/drivers/iommu/fsl_pamu_domain.c @@ -33,6 +33,11 @@ static struct kmem_cache *fsl_pamu_domain_cache; static struct kmem_cache *iommu_devinfo_cache; static DEFINE_SPINLOCK(device_domain_lock); +static struct fsl_dma_domain *to_fsl_dma_domain(struct iommu_domain *dom) +{ + return container_of(dom, struct fsl_dma_domain, iommu_domain); +} + static int __init iommu_init_mempool(void) { fsl_pamu_domain_cache = kmem_cache_create("fsl_pamu_domain", @@ -65,7 +70,7 @@ static phys_addr_t get_phys_addr(struct fsl_dma_domain *dma_domain, dma_addr_t i struct dma_window *win_ptr = &dma_domain->win_arr[0]; struct iommu_domain_geometry *geom; - geom = &dma_domain->iommu_domain->geometry; + geom = &dma_domain->iommu_domain.geometry; if (!win_cnt || !dma_domain->geom_size) { pr_debug("Number of windows/geometry not configured for the domain\n"); @@ -123,7 +128,7 @@ static int map_win(int liodn, struct fsl_dma_domain *dma_domain) { int ret; struct dma_window *wnd = &dma_domain->win_arr[0]; - phys_addr_t wnd_addr = dma_domain->iommu_domain->geometry.aperture_start; + phys_addr_t wnd_addr = dma_domain->iommu_domain.geometry.aperture_start; unsigned long flags; spin_lock_irqsave(&iommu_lock, flags); @@ -172,7 +177,7 @@ static int update_liodn(int liodn, struct fsl_dma_domain *dma_domain, u32 wnd_nr } else { phys_addr_t wnd_addr; - wnd_addr = dma_domain->iommu_domain->geometry.aperture_start; + wnd_addr = dma_domain->iommu_domain.geometry.aperture_start; ret = pamu_config_ppaace(liodn, wnd_addr, wnd->size, @@ -384,7 +389,7 @@ static void attach_device(struct fsl_dma_domain *dma_domain, int liodn, struct d static phys_addr_t fsl_pamu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); if (iova < domain->geometry.aperture_start || iova > domain->geometry.aperture_end) @@ -398,11 +403,9 @@ static bool fsl_pamu_capable(enum iommu_cap cap) return cap == IOMMU_CAP_CACHE_COHERENCY; } -static void fsl_pamu_domain_destroy(struct iommu_domain *domain) +static void fsl_pamu_domain_free(struct iommu_domain *domain) { - struct fsl_dma_domain *dma_domain = domain->priv; - - domain->priv = NULL; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); /* remove all the devices from the device list */ detach_device(NULL, dma_domain); @@ -413,23 +416,24 @@ static void fsl_pamu_domain_destroy(struct iommu_domain *domain) kmem_cache_free(fsl_pamu_domain_cache, dma_domain); } -static int fsl_pamu_domain_init(struct iommu_domain *domain) +static struct iommu_domain *fsl_pamu_domain_alloc(unsigned type) { struct fsl_dma_domain *dma_domain; + if (type != IOMMU_DOMAIN_UNMANAGED) + return NULL; + dma_domain = iommu_alloc_dma_domain(); if (!dma_domain) { pr_debug("dma_domain allocation failed\n"); - return -ENOMEM; + return NULL; } - domain->priv = dma_domain; - dma_domain->iommu_domain = domain; /* defaul geometry 64 GB i.e. maximum system address */ - domain->geometry.aperture_start = 0; - domain->geometry.aperture_end = (1ULL << 36) - 1; - domain->geometry.force_aperture = true; + dma_domain->iommu_domain. geometry.aperture_start = 0; + dma_domain->iommu_domain.geometry.aperture_end = (1ULL << 36) - 1; + dma_domain->iommu_domain.geometry.force_aperture = true; - return 0; + return &dma_domain->iommu_domain; } /* Configure geometry settings for all LIODNs associated with domain */ @@ -499,7 +503,7 @@ static int disable_domain_win(struct fsl_dma_domain *dma_domain, u32 wnd_nr) static void fsl_pamu_window_disable(struct iommu_domain *domain, u32 wnd_nr) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); unsigned long flags; int ret; @@ -530,7 +534,7 @@ static void fsl_pamu_window_disable(struct iommu_domain *domain, u32 wnd_nr) static int fsl_pamu_window_enable(struct iommu_domain *domain, u32 wnd_nr, phys_addr_t paddr, u64 size, int prot) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); struct dma_window *wnd; int pamu_prot = 0; int ret; @@ -607,7 +611,7 @@ static int handle_attach_device(struct fsl_dma_domain *dma_domain, int num) { unsigned long flags; - struct iommu_domain *domain = dma_domain->iommu_domain; + struct iommu_domain *domain = &dma_domain->iommu_domain; int ret = 0; int i; @@ -653,7 +657,7 @@ static int handle_attach_device(struct fsl_dma_domain *dma_domain, static int fsl_pamu_attach_device(struct iommu_domain *domain, struct device *dev) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); const u32 *liodn; u32 liodn_cnt; int len, ret = 0; @@ -691,7 +695,7 @@ static int fsl_pamu_attach_device(struct iommu_domain *domain, static void fsl_pamu_detach_device(struct iommu_domain *domain, struct device *dev) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); const u32 *prop; int len; struct pci_dev *pdev = NULL; @@ -723,7 +727,7 @@ static void fsl_pamu_detach_device(struct iommu_domain *domain, static int configure_domain_geometry(struct iommu_domain *domain, void *data) { struct iommu_domain_geometry *geom_attr = data; - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); dma_addr_t geom_size; unsigned long flags; @@ -813,7 +817,7 @@ static int configure_domain_dma_state(struct fsl_dma_domain *dma_domain, bool en static int fsl_pamu_set_domain_attr(struct iommu_domain *domain, enum iommu_attr attr_type, void *data) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); int ret = 0; switch (attr_type) { @@ -838,7 +842,7 @@ static int fsl_pamu_set_domain_attr(struct iommu_domain *domain, static int fsl_pamu_get_domain_attr(struct iommu_domain *domain, enum iommu_attr attr_type, void *data) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); int ret = 0; switch (attr_type) { @@ -999,7 +1003,7 @@ static void fsl_pamu_remove_device(struct device *dev) static int fsl_pamu_set_windows(struct iommu_domain *domain, u32 w_count) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); unsigned long flags; int ret; @@ -1048,15 +1052,15 @@ static int fsl_pamu_set_windows(struct iommu_domain *domain, u32 w_count) static u32 fsl_pamu_get_windows(struct iommu_domain *domain) { - struct fsl_dma_domain *dma_domain = domain->priv; + struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain); return dma_domain->win_cnt; } static const struct iommu_ops fsl_pamu_ops = { .capable = fsl_pamu_capable, - .domain_init = fsl_pamu_domain_init, - .domain_destroy = fsl_pamu_domain_destroy, + .domain_alloc = fsl_pamu_domain_alloc, + .domain_free = fsl_pamu_domain_free, .attach_dev = fsl_pamu_attach_device, .detach_dev = fsl_pamu_detach_device, .domain_window_enable = fsl_pamu_window_enable, |