From d7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:16:42 +0900 Subject: sh: ioremap() overhaul. ioremap() overhaul. Add support for transparent PMB mapping, get rid of p3_ioremap(), etc. Also drop ioremap() and iounmap() routines from the machvec, as everyone can use the generic ioremap() API instead. For PCI memory apertures and other special cases, use the pci_iomap() API, as boards are already required to get the mapping right there. Signed-off-by: Paul Mundt --- arch/sh/boards/landisk/io.c | 236 ++++++++++++---------------- arch/sh/boards/landisk/setup.c | 237 ++++++++++++----------------- arch/sh/boards/renesas/hs7751rvoip/io.c | 9 -- arch/sh/boards/renesas/hs7751rvoip/setup.c | 1 - arch/sh/boards/renesas/rts7751r2d/io.c | 9 -- arch/sh/boards/renesas/rts7751r2d/mach.c | 2 - arch/sh/boards/titan/io.c | 9 +- arch/sh/boards/titan/setup.c | 1 - arch/sh/drivers/pci/pci.c | 21 ++- arch/sh/kernel/cf-enabler.c | 5 +- arch/sh/kernel/sh_ksyms.c | 1 - arch/sh/mm/Makefile | 7 +- arch/sh/mm/pmb.c | 145 +++++++++++++++++- 13 files changed, 361 insertions(+), 322 deletions(-) (limited to 'arch/sh') diff --git a/arch/sh/boards/landisk/io.c b/arch/sh/boards/landisk/io.c index 1f1679af09d..aa6b145c9e8 100644 --- a/arch/sh/boards/landisk/io.c +++ b/arch/sh/boards/landisk/io.c @@ -17,9 +17,9 @@ #include #include -#include #include #include +#include #include #include @@ -42,10 +42,6 @@ extern void *area6_io_base; /* Area 6 I/O Base address */ #define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - static inline void delay(void) { ctrl_inw(0xa0000000); @@ -66,7 +62,7 @@ static inline unsigned long port2adr(unsigned int port) return ((unsigned long)area6_io_base + PA_SIDE_OFFSET + ((port - 0x170) << 1)); else - maybebadio(port2adr, (unsigned long)port); + maybebadio((unsigned long)port); return port; } @@ -89,234 +85,200 @@ static inline unsigned long port2adr(unsigned int port) * should be way beyond the window, and is used w/o translation for * compatibility. */ -unsigned char landisk_inb(unsigned long port) +u8 landisk_inb(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned char *)port; + return ctrl_inb(port); else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); - else - return (*(volatile unsigned short *)port2adr(port) & 0xff); + return ctrl_inb(PCI_IOMAP(port)); + + return ctrl_inw(port2adr(port)) & 0xff; } -unsigned char landisk_inb_p(unsigned long port) +u8 landisk_inb_p(unsigned long port) { - unsigned char v; + u8 v; if (PXSEG(port)) - v = *(volatile unsigned char *)port; + v = ctrl_inb(port); else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + v = ctrl_inb(PCI_IOMAP(port)); else - v = (*(volatile unsigned short *)port2adr(port) & 0xff); + v = ctrl_inw(port2adr(port)) & 0xff; + delay(); return v; } -unsigned short landisk_inw(unsigned long port) +u16 landisk_inw(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned short *)port; + return ctrl_inw(port); else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + return ctrl_inw(PCI_IOMAP(port)); else - maybebadio(inw, port); + maybebadio(port); return 0; } -unsigned int landisk_inl(unsigned long port) +u32 landisk_inl(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned long *)port; + return ctrl_inl(port); else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned long *)PCI_IOMAP(port); + return ctrl_inl(PCI_IOMAP(port)); else - maybebadio(inl, port); + maybebadio(port); return 0; } -void landisk_outb(unsigned char value, unsigned long port) +void landisk_outb(u8 value, unsigned long port) { - if (PXSEG(port)) - *(volatile unsigned char *)port = value; + ctrl_outb(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, PCI_IOMAP(port)); else - *(volatile unsigned short *)port2adr(port) = value; + ctrl_outw(value, port2adr(port)); } -void landisk_outb_p(unsigned char value, unsigned long port) +void landisk_outb_p(u8 value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned char *)port = value; + ctrl_outb(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, PCI_IOMAP(port)); else - *(volatile unsigned short *)port2adr(port) = value; + ctrl_outw(value, port2adr(port)); delay(); } -void landisk_outw(unsigned short value, unsigned long port) +void landisk_outw(u16 value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned short *)port = value; + ctrl_outw(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned short *)PCI_IOMAP(port) = value; + ctrl_outw(value, PCI_IOMAP(port)); else - maybebadio(outw, port); + maybebadio(port); } -void landisk_outl(unsigned int value, unsigned long port) +void landisk_outl(u32 value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned long *)port = value; + ctrl_outl(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned long *)PCI_IOMAP(port) = value; + ctrl_outl(value, PCI_IOMAP(port)); else - maybebadio(outl, port); + maybebadio(port); } -void landisk_insb(unsigned long port, void *addr, unsigned long count) +void landisk_insb(unsigned long port, void *dst, unsigned long count) { - if (PXSEG(port)) - while (count--) - *((unsigned char *)addr)++ = - *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) { - volatile __u8 *bp = (__u8 *) PCI_IOMAP(port); + volatile u16 *p; + u8 *buf = dst; - while (count--) - *((volatile unsigned char *)addr)++ = *bp; - } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); + if (PXSEG(port)) { + while (count--) + *buf++ = *(volatile u8 *)port; + } else if (CHECK_SH7751_PCIIO(port)) { + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); - while (count--) - *((unsigned char *)addr)++ = *p; + while (count--) + *buf++ = *bp; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p & 0xff; } } -void landisk_insw(unsigned long port, void *addr, unsigned long count) +void landisk_insw(unsigned long port, void *dst, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + u16 *buf = dst; if (PXSEG(port)) - p = (volatile unsigned short *)port; + p = (volatile u16 *)port; else if (CHECK_SH7751_PCIIO(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)PCI_IOMAP(port); else - p = (volatile unsigned short *)port2adr(port); + p = (volatile u16 *)port2adr(port); while (count--) - *((__u16 *) addr)++ = *p; + *buf++ = *p; } -void landisk_insl(unsigned long port, void *addr, unsigned long count) +void landisk_insl(unsigned long port, void *dst, unsigned long count) { + u32 *buf = dst; + if (CHECK_SH7751_PCIIO(port)) { - volatile __u32 *p = (__u32 *) PCI_IOMAP(port); + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); - while (count--) - *((__u32 *) addr)++ = *p; + while (count--) + *buf++ = *p; } else - maybebadio(insl, port); + maybebadio(port); } -void landisk_outsb(unsigned long port, const void *addr, unsigned long count) +void landisk_outsb(unsigned long port, const void *src, unsigned long count) { + volatile u16 *p; + const u8 *buf = src; + if (PXSEG(port)) - while (count--) - *(volatile unsigned char *)port = - *((unsigned char *)addr)++; + while (count--) + ctrl_outb(*buf++, port); else if (CHECK_SH7751_PCIIO(port)) { - volatile __u8 *bp = (__u8 *) PCI_IOMAP(port); + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); - while (count--) - *bp = *((volatile unsigned char *)addr)++; + while (count--) + *bp = *buf++; } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); - - while (count--) - *p = *((unsigned char *)addr)++; + p = (volatile u16 *)port2adr(port); + while (count--) + *p = *buf++; } } -void landisk_outsw(unsigned long port, const void *addr, unsigned long count) +void landisk_outsw(unsigned long port, const void *src, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + const u16 *buf = src; if (PXSEG(port)) - p = (volatile unsigned short *)port; + p = (volatile u16 *)port; else if (CHECK_SH7751_PCIIO(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)PCI_IOMAP(port); else - p = (volatile unsigned short *)port2adr(port); - while (count--) - *p = *((__u16 *) addr)++; -} + p = (volatile u16 *)port2adr(port); -void landisk_outsl(unsigned long port, const void *addr, unsigned long count) -{ - if (CHECK_SH7751_PCIIO(port)) { - volatile __u32 *p = (__u32 *) PCI_IOMAP(port); - - while (count--) - *p = *((__u32 *) addr)++; - } else - maybebadio(outsl, port); + while (count--) + *p = *buf++; } -/* For read/write calls, just copy generic (pass-thru); PCIMBR is */ -/* already set up. For a larger memory space, these would need to */ -/* reset PCIMBR as needed on a per-call basis... */ - -unsigned char landisk_readb(unsigned long addr) +void landisk_outsl(unsigned long port, const void *src, unsigned long count) { - return *(volatile unsigned char *)addr; -} + const u32 *buf = src; -unsigned short landisk_readw(unsigned long addr) -{ - return *(volatile unsigned short *)addr; -} - -unsigned int landisk_readl(unsigned long addr) -{ - return *(volatile unsigned long *)addr; -} - -void landisk_writeb(unsigned char b, unsigned long addr) -{ - *(volatile unsigned char *)addr = b; -} - -void landisk_writew(unsigned short b, unsigned long addr) -{ - *(volatile unsigned short *)addr = b; -} - -void landisk_writel(unsigned int b, unsigned long addr) -{ - *(volatile unsigned long *)addr = b; -} + if (CHECK_SH7751_PCIIO(port)) { + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); -void *landisk_ioremap(unsigned long offset, unsigned long size) -{ - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); + while (count--) + *p = *buf++; + } else + maybebadio(port); } -void landisk_iounmap(void *addr) +void __iomem *landisk_ioport_map(unsigned long port, unsigned int size) { -} + if (PXSEG(port)) + return (void __iomem *)port; + else if (CHECK_SH7751_PCIIO(port)) + return (void __iomem *)PCI_IOMAP(port); -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -unsigned long landisk_isa_port2addr(unsigned long offset) -{ - return port2adr(offset); + return (void __iomem *)port2adr(port); } diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c index 0c60eaa10ba..3a795cfb1ed 100644 --- a/arch/sh/boards/landisk/setup.c +++ b/arch/sh/boards/landisk/setup.c @@ -1,157 +1,52 @@ /* * arch/sh/boards/landisk/setup.c * + * Copyright (C) 2000 Kazumoto Kojima * Copyright (C) 2002 Paul Mundt * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Setup code for an unknown machine (internal peripherials only) - */ -/* - * linux/arch/sh/kernel/setup_landisk.c - * - * Copyright (C) 2000 Kazumoto Kojima - * * I-O DATA Device, Inc. LANDISK Support. * * Modified for LANDISK by * Atom Create Engineering Co., Ltd. 2002. - */ -/* + * * modifed by kogiidena * 2005.09.16 + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. */ - #include #include -#include #include - -#include -#include -#include - +#include #include #include -#include -#include #include -#include - -#include -#include +#include -extern void (*board_time_init) (void); void landisk_time_init(void); -extern void init_landisk_IRQ(void); +void init_landisk_IRQ(void); int landisk_ledparam; int landisk_buzzerparam; int landisk_arch; -/* defined in mm/ioremap.c */ -extern void *p3_ioremap(unsigned long phys_addr, unsigned long size, - unsigned long flags); - -/* - * Initialize the board - */ - -const char *get_system_type(void) -{ - return "LANDISK"; -} - -static void landisk_power_off(void) -{ - ctrl_outb(0x01, PA_SHUTDOWN); -} - -void check_usl5p(void) -{ - volatile unsigned char *p = (volatile unsigned char *)PA_LED; - unsigned char tmp1, tmp2; - tmp1 = *p; - *p = 0x40; - tmp2 = *p; - *p = tmp1; - landisk_arch = (tmp2 == 0x40) ? 1 : 0; - if (landisk_arch == 1) { /* arch == usl-5p */ - landisk_ledparam = 0x00000380; - landisk_ledparam |= (tmp1 & 0x07c); - } else { /* arch == landisk */ - landisk_ledparam = 0x02000180; - landisk_ledparam |= 0x04; - } - return; -} - -void __init platform_setup(void) -{ - - landisk_buzzerparam = 0; - check_usl5p(); - - printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); - board_time_init = landisk_time_init; - pm_power_off = landisk_power_off; - -} - -void *area5_io_base; -void *area6_io_base; - -int __init cf_init(void) -{ - pgprot_t prot; - unsigned long paddrbase, psize; - - /* open I/O area window */ - paddrbase = virt_to_phys((void *)PA_AREA5_IO); - psize = PAGE_SIZE; - prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16); - area5_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); - if (!area5_io_base) { - printk("allocate_cf_area : can't open CF I/O window!\n"); - return -ENOMEM; - } - - paddrbase = virt_to_phys((void *)PA_AREA6_IO); - psize = PAGE_SIZE; - prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); - area6_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); - if (!area6_io_base) { - printk("allocate_cf_area : can't open HDD I/O window!\n"); - return -ENOMEM; - } - - printk(KERN_INFO "Allocate Area5/6 success.\n"); - - /* XXX : do we need attribute and common-memory area also? */ - - return 0; -} - -__initcall(cf_init); - -#include - -/* Cycle the LED's in the clasic knightrider/Sun pattern */ - -void heartbeat_landisk(void) +/* cycle the led's in the clasic knightrider/sun pattern */ +static void heartbeat_landisk(void) { static unsigned int cnt = 0, blink = 0x00, period = 25; - volatile unsigned char *p = (volatile unsigned char *)PA_LED; + volatile u8 *p = (volatile u8 *)PA_LED; char data; - if ((landisk_ledparam & 0x080) == 0) { + if ((landisk_ledparam & 0x080) == 0) return; - } + cnt += 1; - if (cnt < period) { + + if (cnt < period) return; - } + cnt = 0; blink++; @@ -167,17 +62,16 @@ void heartbeat_landisk(void) } *p = data; - if (((landisk_ledparam & 0x007f7f00) == 0) - && (landisk_buzzerparam == 0)) { + if (((landisk_ledparam & 0x007f7f00) == 0) && + (landisk_buzzerparam == 0)) landisk_ledparam &= (~0x0080); - } + landisk_buzzerparam >>= 1; } /* * The Machine Vector */ - struct sh_machine_vector mv_landisk __initmv = { .mv_nr_irqs = 72, .mv_inb = landisk_inb, @@ -198,21 +92,88 @@ struct sh_machine_vector mv_landisk __initmv = { .mv_outsb = landisk_outsb, .mv_outsw = landisk_outsw, .mv_outsl = landisk_outsl, - .mv_readb = landisk_readb, - .mv_readw = landisk_readw, - .mv_readl = landisk_readl, - .mv_writeb = landisk_writeb, - .mv_writew = landisk_writew, - .mv_writel = landisk_writel, - .mv_ioremap = landisk_ioremap, - .mv_iounmap = landisk_iounmap, - .mv_isa_port2addr = landisk_isa_port2addr, + .mv_ioport_map = landisk_ioport_map, .mv_init_irq = init_landisk_IRQ, - #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_landisk, #endif - }; - ALIAS_MV(landisk) + +const char *get_system_type(void) +{ + return "LANDISK"; +} + +static void landisk_power_off(void) +{ + ctrl_outb(0x01, PA_SHUTDOWN); +} + +static void check_usl5p(void) +{ + volatile u8 *p = (volatile u8 *)PA_LED; + u8 tmp1, tmp2; + + tmp1 = *p; + *p = 0x40; + tmp2 = *p; + *p = tmp1; + + landisk_arch = (tmp2 == 0x40); + if (landisk_arch == 1) { + /* arch == usl-5p */ + landisk_ledparam = 0x00000380; + landisk_ledparam |= (tmp1 & 0x07c); + } else { + /* arch == landisk */ + landisk_ledparam = 0x02000180; + landisk_ledparam |= 0x04; + } +} + +void __init platform_setup(void) +{ + landisk_buzzerparam = 0; + check_usl5p(); + + printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); + board_time_init = landisk_time_init; + pm_power_off = landisk_power_off; +} + +void *area5_io_base; +void *area6_io_base; + +static int __init landisk_cf_init(void) +{ + pgprot_t prot; + unsigned long paddrbase, psize; + + /* open I/O area window */ + paddrbase = virt_to_phys((void *)PA_AREA5_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16); + area5_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area5_io_base) { + printk("allocate_cf_area : can't open CF I/O window!\n"); + return -ENOMEM; + } + + paddrbase = virt_to_phys((void *)PA_AREA6_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); + area6_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area6_io_base) { + printk("allocate_cf_area : can't open HDD I/O window!\n"); + return -ENOMEM; + } + + printk(KERN_INFO "Allocate Area5/6 success.\n"); + + /* XXX : do we need attribute and common-memory area also? */ + + return 0; +} + +__initcall(landisk_cf_init); diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c index 09fb77ffb83..edecf107fc1 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/io.c +++ b/arch/sh/boards/renesas/hs7751rvoip/io.c @@ -294,15 +294,6 @@ void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count maybebadio(outsl, port); } -void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size) -{ - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); -} -EXPORT_SYMBOL(hs7751rvoip_ioremap); - unsigned long hs7751rvoip_isa_port2addr(unsigned long offset) { return port2adr(offset); diff --git a/arch/sh/boards/renesas/hs7751rvoip/setup.c b/arch/sh/boards/renesas/hs7751rvoip/setup.c index 813fc4d5862..aa51bda931f 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/setup.c +++ b/arch/sh/boards/renesas/hs7751rvoip/setup.c @@ -60,7 +60,6 @@ struct sh_machine_vector mv_hs7751rvoip __initmv = { .mv_outsw = hs7751rvoip_outsw, .mv_outsl = hs7751rvoip_outsl, - .mv_ioremap = hs7751rvoip_ioremap, .mv_isa_port2addr = hs7751rvoip_isa_port2addr, .mv_init_irq = hs7751rvoip_init_irq, }; diff --git a/arch/sh/boards/renesas/rts7751r2d/io.c b/arch/sh/boards/renesas/rts7751r2d/io.c index 9e7fa726a86..8dc2a2e2e5d 100644 --- a/arch/sh/boards/renesas/rts7751r2d/io.c +++ b/arch/sh/boards/renesas/rts7751r2d/io.c @@ -321,15 +321,6 @@ void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count) maybebadio(port); } -void *rts7751r2d_ioremap(unsigned long offset, unsigned long size) -{ - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); -} -EXPORT_SYMBOL(rts7751r2d_ioremap); - unsigned long rts7751r2d_isa_port2addr(unsigned long offset) { return port2adr(offset); diff --git a/arch/sh/boards/renesas/rts7751r2d/mach.c b/arch/sh/boards/renesas/rts7751r2d/mach.c index 175a93d726e..fe3e8735e9f 100644 --- a/arch/sh/boards/renesas/rts7751r2d/mach.c +++ b/arch/sh/boards/renesas/rts7751r2d/mach.c @@ -19,7 +19,6 @@ extern void heartbeat_rts7751r2d(void); extern void init_rts7751r2d_IRQ(void); -extern void *rts7751r2d_ioremap(unsigned long, unsigned long); extern int rts7751r2d_irq_demux(int irq); extern void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); @@ -53,7 +52,6 @@ struct sh_machine_vector mv_rts7751r2d __initmv = { .mv_outsw = rts7751r2d_outsw, .mv_outsl = rts7751r2d_outsl, - .mv_ioremap = rts7751r2d_ioremap, .mv_init_irq = init_rts7751r2d_IRQ, #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_rts7751r2d, diff --git a/arch/sh/boards/titan/io.c b/arch/sh/boards/titan/io.c index d66900c99a1..b886fd233a6 100644 --- a/arch/sh/boards/titan/io.c +++ b/arch/sh/boards/titan/io.c @@ -138,19 +138,12 @@ void titan_outsl(unsigned long port, const void *src, unsigned long count) maybebadio(port); } -void *titan_ioremap(unsigned long offset, unsigned long size) { - if (CHECK_SH7751_PCIIO(offset) || CHECK_SH7751_PCIMEMIO(offset)) - return (void *)offset; -} - void __iomem *titan_ioport_map(unsigned long port, unsigned int size) { - if (PXSEG(port)) + if (PXSEG(port) || CHECK_SH7751_PCIMEMIO(port)) return (void __iomem *)port; else if (CHECK_SH7751_PCIIO(port)) return (void __iomem *)PCI_IOMAP(port); return (void __iomem *)port2adr(port); } - -EXPORT_SYMBOL(titan_ioremap); diff --git a/arch/sh/boards/titan/setup.c b/arch/sh/boards/titan/setup.c index 6ac5c8d7b3f..c8b431c1d0f 100644 --- a/arch/sh/boards/titan/setup.c +++ b/arch/sh/boards/titan/setup.c @@ -51,7 +51,6 @@ struct sh_machine_vector mv_titan __initmv = { .mv_insl = titan_insl, .mv_outsl = titan_outsl, - .mv_ioremap = titan_ioremap, .mv_ioport_map = titan_ioport_map, .mv_init_irq = init_titan_irq, diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 1f5e23e8b16..285dffd12bd 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -2,7 +2,7 @@ * arch/sh/drivers/pci/pci.c * * Copyright (c) 2002 M. R. Brown - * Copyright (c) 2004, 2005 Paul Mundt + * Copyright (c) 2004 - 2006 Paul Mundt * * These functions are collected here to reduce duplication of common * code amongst the many platform-specific PCI support code files. @@ -172,10 +172,23 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) return NULL; if (maxlen && len > maxlen) len = maxlen; - if (flags & IORESOURCE_IO) + + /* + * Presently the IORESOURCE_MEM case is a bit special, most + * SH7751 style PCI controllers have PCI memory at a fixed + * location in the address space where no remapping is desired + * (traditionally at 0xfd000000). Once this changes, the + * IORESOURCE_MEM case will have to switch to using ioremap() and + * more care will have to be taken to inhibit page table mapping + * for legacy cores. + * + * For now everything wraps to ioport_map(), since boards that + * have PCI will be able to check the address range properly on + * their own. + * -- PFM. + */ + if (flags & (IORESOURCE_IO | IORESOURCE_MEM)) return ioport_map(start, len); - if (flags & IORESOURCE_MEM) - return ioremap(start, len); return NULL; } diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c index f1f9ab87f0b..c9b823d1d07 100644 --- a/arch/sh/kernel/cf-enabler.c +++ b/arch/sh/kernel/cf-enabler.c @@ -41,9 +41,6 @@ #define slot_no 1 #endif -/* defined in mm/ioremap.c */ -extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags); - /* use this pointer to access to directly connected compact flash io area*/ void *cf_io_base; @@ -62,7 +59,7 @@ static int __init allocate_cf_area(void) return -ENOMEM; } /* printk("p3_ioremap(paddr=0x%08lx, psize=0x%08lx, prot=0x%08lx)=0x%08lx\n", - paddrbase, psize, prot.pgprot, cf_io_base);*/ + paddrbase, psize, prot.pgprot, cf_io_base);*/ /* XXX : do we need attribute and common-memory area also? */ diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index 8a6dd06fd07..b73feafcd06 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -27,7 +27,6 @@ EXPORT_SYMBOL(sh_mv); /* platform dependent support */ EXPORT_SYMBOL(dump_fpu); -EXPORT_SYMBOL(iounmap); EXPORT_SYMBOL(enable_irq); EXPORT_SYMBOL(disable_irq); EXPORT_SYMBOL(probe_irq_mask); diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile index d90906367c5..87a7c07265c 100644 --- a/arch/sh/mm/Makefile +++ b/arch/sh/mm/Makefile @@ -12,13 +12,14 @@ obj-$(CONFIG_DMA_PAGE_OPS) += pg-dma.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o mmu-y := fault-nommu.o tlb-nommu.o pg-nommu.o -mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o tlb-flush.o +mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o tlb-flush.o \ + ioremap.o obj-y += $(mmu-y) ifdef CONFIG_MMU -obj-$(CONFIG_CPU_SH3) += tlb-sh3.o -obj-$(CONFIG_CPU_SH4) += tlb-sh4.o ioremap.o +obj-$(CONFIG_CPU_SH3) += tlb-sh3.o +obj-$(CONFIG_CPU_SH4) += tlb-sh4.o obj-$(CONFIG_SH7705_CACHE_32KB) += pg-sh7705.o endif diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c index ff5bde74564..819fd0faf02 100644 --- a/arch/sh/mm/pmb.c +++ b/arch/sh/mm/pmb.c @@ -3,7 +3,7 @@ * * Privileged Space Mapping Buffer (PMB) Support. * - * Copyright (C) 2005 Paul Mundt + * Copyright (C) 2005, 2006 Paul Mundt * * P1/P2 Section mapping definitions from map32.h, which was: * @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -127,11 +128,15 @@ repeat: return 0; } -void set_pmb_entry(struct pmb_entry *pmbe) +int set_pmb_entry(struct pmb_entry *pmbe) { + int ret; + jump_to_P2(); - __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry); + ret = __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry); back_to_P1(); + + return ret; } void clear_pmb_entry(struct pmb_entry *pmbe) @@ -162,11 +167,141 @@ void clear_pmb_entry(struct pmb_entry *pmbe) clear_bit(entry, &pmb_map); } +static DEFINE_SPINLOCK(pmb_list_lock); +static struct pmb_entry *pmb_list; + +static inline void pmb_list_add(struct pmb_entry *pmbe) +{ + struct pmb_entry **p, *tmp; + + p = &pmb_list; + while ((tmp = *p) != NULL) + p = &tmp->next; + + pmbe->next = tmp; + *p = pmbe; +} + +static inline void pmb_list_del(struct pmb_entry *pmbe) +{ + struct pmb_entry **p, *tmp; + + for (p = &pmb_list; (tmp = *p); p = &tmp->next) + if (tmp == pmbe) { + *p = tmp->next; + return; + } +} + +static struct { + unsigned long size; + int flag; +} pmb_sizes[] = { + { .size = 0x20000000, .flag = PMB_SZ_512M, }, + { .size = 0x08000000, .flag = PMB_SZ_128M, }, + { .size = 0x04000000, .flag = PMB_SZ_64M, }, + { .size = 0x01000000, .flag = PMB_SZ_16M, }, +}; + +long pmb_remap(unsigned long vaddr, unsigned long phys, + unsigned long size, unsigned long flags) +{ + struct pmb_entry *pmbp; + unsigned long wanted; + int pmb_flags, i; + + /* Convert typical pgprot value to the PMB equivalent */ + if (flags & _PAGE_CACHABLE) { + if (flags & _PAGE_WT) + pmb_flags = PMB_WT; + else + pmb_flags = PMB_C; + } else + pmb_flags = PMB_WT | PMB_UB; + + pmbp = NULL; + wanted = size; + +again: + for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++) { + struct pmb_entry *pmbe; + int ret; + + if (size < pmb_sizes[i].size) + continue; + + pmbe = pmb_alloc(vaddr, phys, pmb_flags | pmb_sizes[i].flag); + if (IS_ERR(pmbe)) + return PTR_ERR(pmbe); + + ret = set_pmb_entry(pmbe); + if (ret != 0) { + pmb_free(pmbe); + return -EBUSY; + } + + phys += pmb_sizes[i].size; + vaddr += pmb_sizes[i].size; + size -= pmb_sizes[i].size; + + /* + * Link adjacent entries that span multiple PMB entries + * for easier tear-down. + */ + if (likely(pmbp)) + pmbp->link = pmbe; + + pmbp = pmbe; + } + + if (size >= 0x1000000) + goto again; + + return wanted - size; +} + +void pmb_unmap(unsigned long addr) +{ + struct pmb_entry **p, *pmbe; + + for (p = &pmb_list; (pmbe = *p); p = &pmbe->next) + if (pmbe->vpn == addr) + break; + + if (unlikely(!pmbe)) + return; + + WARN_ON(!test_bit(pmbe->entry, &pmb_map)); + + do { + struct pmb_entry *pmblink = pmbe; + + clear_pmb_entry(pmbe); + pmbe = pmblink->link; + + pmb_free(pmblink); + } while (pmbe); +} + static void pmb_cache_ctor(void *pmb, kmem_cache_t *cachep, unsigned long flags) { + struct pmb_entry *pmbe = pmb; + memset(pmb, 0, sizeof(struct pmb_entry)); - ((struct pmb_entry *)pmb)->entry = PMB_NO_ENTRY; + spin_lock_irq(&pmb_list_lock); + + pmbe->entry = PMB_NO_ENTRY; + pmb_list_add(pmbe); + + spin_unlock_irq(&pmb_list_lock); +} + +static void pmb_cache_dtor(void *pmb, kmem_cache_t *cachep, unsigned long flags) +{ + spin_lock_irq(&pmb_list_lock); + pmb_list_del(pmb); + spin_unlock_irq(&pmb_list_lock); } static int __init pmb_init(void) @@ -177,7 +312,7 @@ static int __init pmb_init(void) BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES)); pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), - 0, 0, pmb_cache_ctor, NULL); + 0, 0, pmb_cache_ctor, pmb_cache_dtor); BUG_ON(!pmb_cache); jump_to_P2(); -- cgit v1.2.3