diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-11-13 09:27:39 +1100 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2006-12-04 20:39:05 +1100 |
commit | 68a64357d15ae4f596e92715719071952006e83c (patch) | |
tree | dee519239225e92169ef77e4fad3be25c4dffe9d /arch | |
parent | 3d1ea8e8cb4d497a2dd73176cc82095b8f193589 (diff) |
[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h
powerpc: Merge 32 and 64 bits asm-powerpc/io.h
The rework on io.h done for the new hookable accessors made it easier,
so I just finished the work and merged 32 and 64 bits io.h for arch/powerpc.
arch/ppc still uses the old version in asm-ppc, there is just too much gunk
in there that I really can't be bothered trying to cleanup.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/powerpc/kernel/Makefile | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/io.c | 87 | ||||
-rw-r--r-- | arch/powerpc/kernel/iomap.c | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/pci_32.c | 34 | ||||
-rw-r--r-- | arch/powerpc/kernel/rtas_pci.c | 1 | ||||
-rw-r--r-- | arch/powerpc/kernel/traps.c | 8 | ||||
-rw-r--r-- | arch/powerpc/mm/pgtable_32.c | 22 | ||||
-rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 16 | ||||
-rw-r--r-- | arch/powerpc/platforms/chrp/setup.c | 1 | ||||
-rw-r--r-- | arch/powerpc/platforms/iseries/setup.c | 4 | ||||
-rw-r--r-- | arch/powerpc/platforms/powermac/setup.c | 2 |
11 files changed, 113 insertions, 66 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 600954df07a..f9ce5d798de 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -72,7 +72,7 @@ obj-$(CONFIG_AUDIT) += audit.o obj64-$(CONFIG_AUDIT) += compat_audit.o ifneq ($(CONFIG_PPC_INDIRECT_IO),y) -pci64-$(CONFIG_PPC64) += iomap.o +obj-y += iomap.o endif ifeq ($(CONFIG_PPC_ISERIES),y) diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c index c1aa07524c2..34ae11494dd 100644 --- a/arch/powerpc/kernel/io.c +++ b/arch/powerpc/kernel/io.c @@ -117,3 +117,90 @@ void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count) asm volatile("sync"); } EXPORT_SYMBOL(_outsl_ns); + +#define IO_CHECK_ALIGN(v,a) ((((unsigned long)(v)) & ((a) - 1)) == 0) + +void _memset_io(volatile void __iomem *addr, int c, unsigned long n) +{ + void *p = (void __force *)addr; + u32 lc = c; + lc |= lc << 8; + lc |= lc << 16; + + __asm__ __volatile__ ("sync" : : : "memory"); + while(n && !IO_CHECK_ALIGN(p, 4)) { + *((volatile u8 *)p) = c; + p++; + n--; + } + while(n >= 4) { + *((volatile u32 *)p) = lc; + p += 4; + n -= 4; + } + while(n) { + *((volatile u8 *)p) = c; + p++; + n--; + } + __asm__ __volatile__ ("sync" : : : "memory"); +} +EXPORT_SYMBOL(_memset_io); + +void _memcpy_fromio(void *dest, const volatile void __iomem *src, + unsigned long n) +{ + void *vsrc = (void __force *) src; + + __asm__ __volatile__ ("sync" : : : "memory"); + while(n && (!IO_CHECK_ALIGN(vsrc, 4) || !IO_CHECK_ALIGN(dest, 4))) { + *((u8 *)dest) = *((volatile u8 *)vsrc); + __asm__ __volatile__ ("eieio" : : : "memory"); + vsrc++; + dest++; + n--; + } + while(n > 4) { + *((u32 *)dest) = *((volatile u32 *)vsrc); + __asm__ __volatile__ ("eieio" : : : "memory"); + vsrc += 4; + dest += 4; + n -= 4; + } + while(n) { + *((u8 *)dest) = *((volatile u8 *)vsrc); + __asm__ __volatile__ ("eieio" : : : "memory"); + vsrc++; + dest++; + n--; + } + __asm__ __volatile__ ("sync" : : : "memory"); +} +EXPORT_SYMBOL(_memcpy_fromio); + +void _memcpy_toio(volatile void __iomem *dest, const void *src, unsigned long n) +{ + void *vdest = (void __force *) dest; + + __asm__ __volatile__ ("sync" : : : "memory"); + while(n && (!IO_CHECK_ALIGN(vdest, 4) || !IO_CHECK_ALIGN(src, 4))) { + *((volatile u8 *)vdest) = *((u8 *)src); + src++; + vdest++; + n--; + } + while(n > 4) { + *((volatile u32 *)vdest) = *((volatile u32 *)src); + src += 4; + vdest += 4; + n-=4; + } + while(n) { + *((volatile u8 *)vdest) = *((u8 *)src); + src++; + vdest++; + n--; + } + __asm__ __volatile__ ("sync" : : : "memory"); +} +EXPORT_SYMBOL(_memcpy_toio); diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c index a13a93dfc65..c6811337105 100644 --- a/arch/powerpc/kernel/iomap.c +++ b/arch/powerpc/kernel/iomap.c @@ -106,7 +106,7 @@ EXPORT_SYMBOL(iowrite32_rep); void __iomem *ioport_map(unsigned long port, unsigned int len) { - return (void __iomem *) (port+pci_io_base); + return (void __iomem *) (port + _IO_BASE); } void ioport_unmap(void __iomem *addr) diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 0ad101a5fc5..b08238f3050 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -1561,7 +1561,7 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, *offset += hose->pci_mem_offset; res_bit = IORESOURCE_MEM; } else { - io_offset = hose->io_base_virt - ___IO_BASE; + io_offset = hose->io_base_virt - (void __iomem *)_IO_BASE; *offset += io_offset; res_bit = IORESOURCE_IO; } @@ -1816,7 +1816,8 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar, return; if (rsrc->flags & IORESOURCE_IO) - offset = ___IO_BASE - hose->io_base_virt + hose->io_base_phys; + offset = (void __iomem *)_IO_BASE - hose->io_base_virt + + hose->io_base_phys; *start = rsrc->start + offset; *end = rsrc->end + offset; @@ -1835,35 +1836,6 @@ pci_init_resource(struct resource *res, unsigned long start, unsigned long end, res->child = NULL; } -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) -{ - unsigned long start = pci_resource_start(dev, bar); - unsigned long len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len) - return NULL; - if (max && len > max) - len = max; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) - /* Not checking IORESOURCE_CACHEABLE because PPC does - * not currently distinguish between ioremap and - * ioremap_nocache. - */ - return ioremap(start, len); - /* What? */ - return NULL; -} - -void pci_iounmap(struct pci_dev *dev, void __iomem *addr) -{ - /* Nothing to do */ -} -EXPORT_SYMBOL(pci_iomap); -EXPORT_SYMBOL(pci_iounmap); - unsigned long pci_address_to_pio(phys_addr_t address) { struct pci_controller* hose = hose_head; diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index 03cacc25a0a..ace9f4c86e6 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -38,6 +38,7 @@ #include <asm/rtas.h> #include <asm/mpic.h> #include <asm/ppc-pci.h> +#include <asm/eeh.h> /* RTAS tokens */ static int read_pci_config; diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index c66b4771ef4..0d4e203fa7a 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -53,10 +53,6 @@ #endif #include <asm/kexec.h> -#ifdef CONFIG_PPC64 /* XXX */ -#define _IO_BASE pci_io_base -#endif - #ifdef CONFIG_DEBUGGER int (*__debugger)(struct pt_regs *regs); int (*__debugger_ipi)(struct pt_regs *regs); @@ -241,7 +237,7 @@ void system_reset_exception(struct pt_regs *regs) */ static inline int check_io_access(struct pt_regs *regs) { -#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) +#ifdef CONFIG_PPC32 unsigned long msr = regs->msr; const struct exception_table_entry *entry; unsigned int *nip = (unsigned int *)regs->nip; @@ -274,7 +270,7 @@ static inline int check_io_access(struct pt_regs *regs) return 1; } } -#endif /* CONFIG_PPC_PMAC && CONFIG_PPC32 */ +#endif /* CONFIG_PPC32 */ return 0; } diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index 7750c442568..1891dbeeb8e 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -149,6 +149,13 @@ ioremap(phys_addr_t addr, unsigned long size) EXPORT_SYMBOL(ioremap); void __iomem * +ioremap_flags(phys_addr_t addr, unsigned long size, unsigned long flags) +{ + return __ioremap(addr, size, flags); +} +EXPORT_SYMBOL(ioremap_flags); + +void __iomem * __ioremap(phys_addr_t addr, unsigned long size, unsigned long flags) { unsigned long v, i; @@ -247,20 +254,7 @@ void iounmap(volatile void __iomem *addr) } EXPORT_SYMBOL(iounmap); -void __iomem *ioport_map(unsigned long port, unsigned int len) -{ - return (void __iomem *) (port + _IO_BASE); -} - -void ioport_unmap(void __iomem *addr) -{ - /* Nothing to do */ -} -EXPORT_SYMBOL(ioport_map); -EXPORT_SYMBOL(ioport_unmap); - -int -map_page(unsigned long va, phys_addr_t pa, int flags) +int map_page(unsigned long va, phys_addr_t pa, int flags) { pmd_t *pd; pte_t *pg; diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index e9b21846ccb..16e4ee1c231 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -113,7 +113,7 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags) } -static void __iomem * __ioremap_com(unsigned long addr, unsigned long pa, +static void __iomem * __ioremap_com(phys_addr_t addr, unsigned long pa, unsigned long ea, unsigned long size, unsigned long flags) { @@ -129,7 +129,7 @@ static void __iomem * __ioremap_com(unsigned long addr, unsigned long pa, return (void __iomem *) (ea + (addr & ~PAGE_MASK)); } -void __iomem * __ioremap(unsigned long addr, unsigned long size, +void __iomem * __ioremap(phys_addr_t addr, unsigned long size, unsigned long flags) { unsigned long pa, ea; @@ -169,7 +169,7 @@ void __iomem * __ioremap(unsigned long addr, unsigned long size, } -void __iomem * ioremap(unsigned long addr, unsigned long size) +void __iomem * ioremap(phys_addr_t addr, unsigned long size) { unsigned long flags = _PAGE_NO_CACHE | _PAGE_GUARDED; @@ -178,7 +178,7 @@ void __iomem * ioremap(unsigned long addr, unsigned long size) return __ioremap(addr, size, flags); } -void __iomem * ioremap_flags(unsigned long addr, unsigned long size, +void __iomem * ioremap_flags(phys_addr_t addr, unsigned long size, unsigned long flags) { if (ppc_md.ioremap) @@ -189,7 +189,7 @@ void __iomem * ioremap_flags(unsigned long addr, unsigned long size, #define IS_PAGE_ALIGNED(_val) ((_val) == ((_val) & PAGE_MASK)) -int __ioremap_explicit(unsigned long pa, unsigned long ea, +int __ioremap_explicit(phys_addr_t pa, unsigned long ea, unsigned long size, unsigned long flags) { struct vm_struct *area; @@ -244,7 +244,7 @@ int __ioremap_explicit(unsigned long pa, unsigned long ea, * * XXX what about calls before mem_init_done (ie python_countermeasures()) */ -void __iounmap(void __iomem *token) +void __iounmap(volatile void __iomem *token) { void *addr; @@ -256,7 +256,7 @@ void __iounmap(void __iomem *token) im_free(addr); } -void iounmap(void __iomem *token) +void iounmap(volatile void __iomem *token) { if (ppc_md.iounmap) ppc_md.iounmap(token); @@ -282,7 +282,7 @@ static int iounmap_subset_regions(unsigned long addr, unsigned long size) return 0; } -int __iounmap_explicit(void __iomem *start, unsigned long size) +int __iounmap_explicit(volatile void __iomem *start, unsigned long size) { struct vm_struct *area; unsigned long addr; diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index e6807d6d75b..e1f51d45598 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -588,7 +588,6 @@ static int __init chrp_probe(void) ISA_DMA_THRESHOLD = ~0L; DMA_MODE_READ = 0x44; DMA_MODE_WRITE = 0x48; - isa_io_base = CHRP_ISA_IO_BASE; /* default value */ return 1; } diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index 2f16d9330cf..0f39bdbbf91 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -617,13 +617,13 @@ static void iseries_dedicated_idle(void) void __init iSeries_init_IRQ(void) { } #endif -static void __iomem *iseries_ioremap(unsigned long address, unsigned long size, +static void __iomem *iseries_ioremap(phys_addr_t address, unsigned long size, unsigned long flags) { return (void __iomem *)address; } -static void iseries_iounmap(void __iomem *token) +static void iseries_iounmap(volatile void __iomem *token) { } diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 4ec6a5a65f3..d949e9df41e 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -677,8 +677,6 @@ static int __init pmac_probe(void) #ifdef CONFIG_PPC32 /* isa_io_base gets set in pmac_pci_init */ - isa_mem_base = PMAC_ISA_MEM_BASE; - pci_dram_offset = PMAC_PCI_DRAM_OFFSET; ISA_DMA_THRESHOLD = ~0L; DMA_MODE_READ = 1; DMA_MODE_WRITE = 2; |