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| author |   Jon Mason <jon.mason@intel.com> | 2013-01-21 16:40:39 -0700 |
|---|---|---|
| committer | Jon Mason <jon.mason@intel.com> | 2013-09-03 14:48:53 -0700 |
| commit | ac477afb0431386575ef453f50fa0052c3f0461b (patch) | |
| tree | f32e9f650e68e345baee7919800d8b8e6da60d82 /drivers/ntb/ntb_hw.h | |
| parent | NTB: Update Device IDs (diff) | |
| download | linux-dev-ac477afb0431386575ef453f50fa0052c3f0461b.tar.xz linux-dev-ac477afb0431386575ef453f50fa0052c3f0461b.zip | |
NTB: Enable 32bit Support
Correct the issues on NTB that prevented it from working on x86_32 and
modify the Kconfig to allow it to be permitted to be used in that
environment as well.
Signed-off-by: Jon Mason <jon.mason@intel.com>
Diffstat (limited to 'drivers/ntb/ntb_hw.h')
| -rw-r--r-- | drivers/ntb/ntb_hw.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h index 591d4ff5d88e..d838bc13b956 100644 --- a/drivers/ntb/ntb_hw.h +++ b/drivers/ntb/ntb_hw.h @@ -62,6 +62,21 @@ #define msix_table_size(control) ((control & PCI_MSIX_FLAGS_QSIZE)+1) +#ifndef readq +static inline u64 readq(void __iomem *addr) +{ + return readl(addr) | (((u64) readl(addr + 4)) << 32LL); +} +#endif + +#ifndef writeq +static inline void writeq(u64 val, void __iomem *addr) +{ + writel(val & 0xffffffff, addr); + writel(val >> 32, addr + 4); +} +#endif + #define NTB_BAR_MMIO 0 #define NTB_BAR_23 2 #define NTB_BAR_45 4 @@ -226,7 +241,7 @@ int ntb_read_local_spad(struct ntb_device *ndev, unsigned int idx, u32 *val); int ntb_write_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 val); int ntb_read_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 *val); void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw); -resource_size_t ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw); +u64 ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw); void ntb_ring_sdb(struct ntb_device *ndev, unsigned int idx); void *ntb_find_transport(struct pci_dev *pdev); |