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author | Robin Murphy <robin.murphy@arm.com> | 2017-07-17 22:05:31 +0900 |
---|---|---|
committer | Joerg Roedel <jroedel@suse.de> | 2017-07-26 12:45:56 +0200 |
commit | 3c49ed322b10a0a57a4695e2762ddd0efaf9ca91 (patch) | |
tree | c32c56c8a97e6fec85e92e35e553190ed2892510 /drivers/iommu/ipmmu-vmsa.c | |
parent | 49558da030d5559b6d80a052f4c51a69f89c31ac (diff) | |
download | linux-stable-3c49ed322b10a0a57a4695e2762ddd0efaf9ca91.tar.gz linux-stable-3c49ed322b10a0a57a4695e2762ddd0efaf9ca91.tar.bz2 linux-stable-3c49ed322b10a0a57a4695e2762ddd0efaf9ca91.zip |
iommu/ipmmu-vmsa: Use fwspec on both 32 and 64-bit ARM
Consolidate the 32-bit and 64-bit code to make use of fwspec instead
of archdata for the 32-bit ARM case.
This is a simplified version of the fwspec handling code from Robin
posted as [PATCH] iommu/ipmmu-vmsa: Convert to iommu_fwspec
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/ipmmu-vmsa.c')
-rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index a0d752cc0470..6bad9e019dc3 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -73,22 +73,9 @@ static struct ipmmu_vmsa_domain *to_vmsa_domain(struct iommu_domain *dom) return container_of(dom, struct ipmmu_vmsa_domain, io_domain); } - static struct ipmmu_vmsa_iommu_priv *to_priv(struct device *dev) { -#if defined(CONFIG_ARM) - return dev->archdata.iommu; -#else - return dev->iommu_fwspec->iommu_priv; -#endif -} -static void set_priv(struct device *dev, struct ipmmu_vmsa_iommu_priv *p) -{ -#if defined(CONFIG_ARM) - dev->archdata.iommu = p; -#else - dev->iommu_fwspec->iommu_priv = p; -#endif + return dev->iommu_fwspec ? dev->iommu_fwspec->iommu_priv : NULL; } #define TLB_LOOP_TIMEOUT 100 /* 100us */ @@ -726,7 +713,7 @@ static int ipmmu_init_platform_device(struct device *dev) priv->utlbs = utlbs; priv->num_utlbs = num_utlbs; priv->dev = dev; - set_priv(dev, priv); + dev->iommu_fwspec->iommu_priv = priv; return 0; error: @@ -887,14 +874,12 @@ static void ipmmu_domain_free_dma(struct iommu_domain *io_domain) static int ipmmu_add_device_dma(struct device *dev) { - struct iommu_fwspec *fwspec = dev->iommu_fwspec; struct iommu_group *group; /* * Only let through devices that have been verified in xlate() - * We may get called with dev->iommu_fwspec set to NULL. */ - if (!fwspec || !fwspec->iommu_priv) + if (!to_priv(dev)) return -ENODEV; group = iommu_group_get_for_dev(dev); |