#include <linux/kernel.h>
#include <linux/types.h>
-#include <asm/io.h>
#include <asm/landisk/iodata_landisk.h>
#include <asm/addrspace.h>
+#include <asm/io.h>
#include <linux/module.h>
#include <linux/pci.h>
#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);
return ((unsigned long)area6_io_base + PA_SIDE_OFFSET +
((port - 0x170) << 1));
else
- maybebadio(port2adr, (unsigned long)port);
+ maybebadio((unsigned long)port);
return 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);
}
/*
* 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 <linux/config.h>
#include <linux/init.h>
-#include <linux/irq.h>
#include <linux/pm.h>
-
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <linux/pci.h>
-
+#include <linux/mm.h>
#include <asm/machvec.h>
#include <asm/rtc.h>
-#include <asm/machvec_init.h>
-#include <asm/io.h>
#include <asm/landisk/iodata_landisk.h>
-#include <asm/landisk/io.h>
-
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
+#include <asm/io.h>
-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 <linux/sched.h>
-
-/* 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++;
}
*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,
.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);
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);
.mv_outsw = hs7751rvoip_outsw,
.mv_outsl = hs7751rvoip_outsl,
- .mv_ioremap = hs7751rvoip_ioremap,
.mv_isa_port2addr = hs7751rvoip_isa_port2addr,
.mv_init_irq = hs7751rvoip_init_irq,
};
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);
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);
.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,
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);
.mv_insl = titan_insl,
.mv_outsl = titan_outsl,
- .mv_ioremap = titan_ioremap,
.mv_ioport_map = titan_ioport_map,
.mv_init_irq = init_titan_irq,
* arch/sh/drivers/pci/pci.c
*
* Copyright (c) 2002 M. R. Brown <mrbrown@linux-sh.org>
- * Copyright (c) 2004, 2005 Paul Mundt <lethal@linux-sh.org>
+ * Copyright (c) 2004 - 2006 Paul Mundt <lethal@linux-sh.org>
*
* These functions are collected here to reduce duplication of common
* code amongst the many platform-specific PCI support code files.
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;
}
#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;
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? */
/* platform dependent support */
EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(iounmap);
EXPORT_SYMBOL(enable_irq);
EXPORT_SYMBOL(disable_irq);
EXPORT_SYMBOL(probe_irq_mask);
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
*
* 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:
*
#include <linux/err.h>
#include <asm/system.h>
#include <asm/uaccess.h>
+#include <asm/pgtable.h>
#include <asm/mmu.h>
#include <asm/io.h>
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)
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)
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();
extern int landisk_buzzerparam; /* from setup.c */
extern int landisk_arch; /* from setup.c */
+#define __IO_PREFIX landisk
+#include <asm/io_generic.h>
+
#endif /* __ASM_SH_IODATA_LANDISK_H */
#define PMB_NO_ENTRY (-1)
+struct pmb_entry;
+
struct pmb_entry {
unsigned long vpn;
unsigned long ppn;
* PMB_NO_ENTRY to search for a free one
*/
int entry;
+
+ struct pmb_entry *next;
+ /* Adjacent entry link for contiguous multi-entry mappings */
+ struct pmb_entry *link;
};
/* arch/sh/mm/pmb.c */
int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
unsigned long flags, int *entry);
-void set_pmb_entry(struct pmb_entry *pmbe);
+int set_pmb_entry(struct pmb_entry *pmbe);
void clear_pmb_entry(struct pmb_entry *pmbe);
struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
unsigned long flags);
void pmb_free(struct pmb_entry *pmbe);
+long pmb_remap(unsigned long virt, unsigned long phys,
+ unsigned long size, unsigned long flags);
+void pmb_unmap(unsigned long addr);
#endif /* __MMU_H */
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff