diff options
Diffstat (limited to 'arch/mips/include/asm/mach-generic')
| -rw-r--r-- | arch/mips/include/asm/mach-generic/cpu-feature-overrides.h | 13 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/floppy.h | 133 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/ide.h | 138 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/ioremap.h | 21 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/irq.h | 39 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/kernel-entry-init.h | 25 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/kmalloc.h | 13 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/mangle-port.h | 52 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/mc146818rtc.h | 36 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/spaces.h | 110 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/topology.h | 1 |
11 files changed, 581 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-generic/cpu-feature-overrides.h b/arch/mips/include/asm/mach-generic/cpu-feature-overrides.h new file mode 100644 index 000000000..42be9e9ce --- /dev/null +++ b/arch/mips/include/asm/mach-generic/cpu-feature-overrides.h @@ -0,0 +1,13 @@ +/* + * 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. + * + * Copyright (C) 2003 Ralf Baechle + */ +#ifndef __ASM_MACH_GENERIC_CPU_FEATURE_OVERRIDES_H +#define __ASM_MACH_GENERIC_CPU_FEATURE_OVERRIDES_H + +/* Intentionally empty file ... */ + +#endif /* __ASM_MACH_GENERIC_CPU_FEATURE_OVERRIDES_H */ diff --git a/arch/mips/include/asm/mach-generic/floppy.h b/arch/mips/include/asm/mach-generic/floppy.h new file mode 100644 index 000000000..e0c9cd41f --- /dev/null +++ b/arch/mips/include/asm/mach-generic/floppy.h @@ -0,0 +1,133 @@ +/* + * 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. + * + * Copyright (C) 1996, 1997, 1998, 2003 by Ralf Baechle + */ +#ifndef __ASM_MACH_GENERIC_FLOPPY_H +#define __ASM_MACH_GENERIC_FLOPPY_H + +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/linkage.h> +#include <linux/types.h> +#include <linux/mm.h> + +#include <asm/bootinfo.h> +#include <asm/cachectl.h> +#include <asm/dma.h> +#include <asm/floppy.h> +#include <asm/io.h> +#include <asm/irq.h> + +/* + * How to access the FDC's registers. + */ +static inline unsigned char fd_inb(unsigned int base, unsigned int reg) +{ + return inb_p(base + reg); +} + +static inline void fd_outb(unsigned char value, unsigned int base, unsigned int reg) +{ + outb_p(value, base + reg); +} + +/* + * How to access the floppy DMA functions. + */ +static inline void fd_enable_dma(void) +{ + enable_dma(FLOPPY_DMA); +} + +static inline void fd_disable_dma(void) +{ + disable_dma(FLOPPY_DMA); +} + +static inline int fd_request_dma(void) +{ + return request_dma(FLOPPY_DMA, "floppy"); +} + +static inline void fd_free_dma(void) +{ + free_dma(FLOPPY_DMA); +} + +static inline void fd_clear_dma_ff(void) +{ + clear_dma_ff(FLOPPY_DMA); +} + +static inline void fd_set_dma_mode(char mode) +{ + set_dma_mode(FLOPPY_DMA, mode); +} + +static inline void fd_set_dma_addr(char *addr) +{ + set_dma_addr(FLOPPY_DMA, (unsigned long) addr); +} + +static inline void fd_set_dma_count(unsigned int count) +{ + set_dma_count(FLOPPY_DMA, count); +} + +static inline int fd_get_dma_residue(void) +{ + return get_dma_residue(FLOPPY_DMA); +} + +static inline void fd_enable_irq(void) +{ + enable_irq(FLOPPY_IRQ); +} + +static inline void fd_disable_irq(void) +{ + disable_irq(FLOPPY_IRQ); +} + +static inline int fd_request_irq(void) +{ + return request_irq(FLOPPY_IRQ, floppy_interrupt, + 0, "floppy", NULL); +} + +static inline void fd_free_irq(void) +{ + free_irq(FLOPPY_IRQ, NULL); +} + +#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL); + + +static inline unsigned long fd_getfdaddr1(void) +{ + return 0x3f0; +} + +static inline unsigned long fd_dma_mem_alloc(unsigned long size) +{ + return __get_dma_pages(GFP_KERNEL, get_order(size)); +} + +static inline void fd_dma_mem_free(unsigned long addr, unsigned long size) +{ + free_pages(addr, get_order(size)); +} + +static inline unsigned long fd_drive_type(unsigned long n) +{ + if (n == 0) + return 4; /* 3,5", 1.44mb */ + + return 0; +} + +#endif /* __ASM_MACH_GENERIC_FLOPPY_H */ diff --git a/arch/mips/include/asm/mach-generic/ide.h b/arch/mips/include/asm/mach-generic/ide.h new file mode 100644 index 000000000..4ae5fbcb1 --- /dev/null +++ b/arch/mips/include/asm/mach-generic/ide.h @@ -0,0 +1,138 @@ +/* + * 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. + * + * Copyright (C) 1994-1996 Linus Torvalds & authors + * + * Copied from i386; many of the especially older MIPS or ISA-based platforms + * are basically identical. Using this file probably implies i8259 PIC + * support in a system but the very least interrupt numbers 0 - 15 need to + * be put aside for legacy devices. + */ +#ifndef __ASM_MACH_GENERIC_IDE_H +#define __ASM_MACH_GENERIC_IDE_H + +#ifdef __KERNEL__ + +#include <linux/pci.h> +#include <linux/stddef.h> +#include <asm/processor.h> + +/* MIPS port and memory-mapped I/O string operations. */ +static inline void __ide_flush_prologue(void) +{ +#ifdef CONFIG_SMP + if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) + preempt_disable(); +#endif +} + +static inline void __ide_flush_epilogue(void) +{ +#ifdef CONFIG_SMP + if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) + preempt_enable(); +#endif +} + +static inline void __ide_flush_dcache_range(unsigned long addr, unsigned long size) +{ + if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) { + unsigned long end = addr + size; + + while (addr < end) { + local_flush_data_cache_page((void *)addr); + addr += PAGE_SIZE; + } + } +} + +/* + * insw() and gang might be called with interrupts disabled, so we can't + * send IPIs for flushing due to the potencial of deadlocks, see the comment + * above smp_call_function() in arch/mips/kernel/smp.c. We work around the + * problem by disabling preemption so we know we actually perform the flush + * on the processor that actually has the lines to be flushed which hopefully + * is even better for performance anyway. + */ +static inline void __ide_insw(unsigned long port, void *addr, + unsigned int count) +{ + __ide_flush_prologue(); + insw(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 2); + __ide_flush_epilogue(); +} + +static inline void __ide_insl(unsigned long port, void *addr, unsigned int count) +{ + __ide_flush_prologue(); + insl(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 4); + __ide_flush_epilogue(); +} + +static inline void __ide_outsw(unsigned long port, const void *addr, + unsigned long count) +{ + __ide_flush_prologue(); + outsw(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 2); + __ide_flush_epilogue(); +} + +static inline void __ide_outsl(unsigned long port, const void *addr, + unsigned long count) +{ + __ide_flush_prologue(); + outsl(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 4); + __ide_flush_epilogue(); +} + +static inline void __ide_mm_insw(void __iomem *port, void *addr, u32 count) +{ + __ide_flush_prologue(); + readsw(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 2); + __ide_flush_epilogue(); +} + +static inline void __ide_mm_insl(void __iomem *port, void *addr, u32 count) +{ + __ide_flush_prologue(); + readsl(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 4); + __ide_flush_epilogue(); +} + +static inline void __ide_mm_outsw(void __iomem *port, void *addr, u32 count) +{ + __ide_flush_prologue(); + writesw(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 2); + __ide_flush_epilogue(); +} + +static inline void __ide_mm_outsl(void __iomem * port, void *addr, u32 count) +{ + __ide_flush_prologue(); + writesl(port, addr, count); + __ide_flush_dcache_range((unsigned long)addr, count * 4); + __ide_flush_epilogue(); +} + +/* ide_insw calls insw, not __ide_insw. Why? */ +#undef insw +#undef insl +#undef outsw +#undef outsl +#define insw(port, addr, count) __ide_insw(port, addr, count) +#define insl(port, addr, count) __ide_insl(port, addr, count) +#define outsw(port, addr, count) __ide_outsw(port, addr, count) +#define outsl(port, addr, count) __ide_outsl(port, addr, count) + +#endif /* __KERNEL__ */ + +#endif /* __ASM_MACH_GENERIC_IDE_H */ diff --git a/arch/mips/include/asm/mach-generic/ioremap.h b/arch/mips/include/asm/mach-generic/ioremap.h new file mode 100644 index 000000000..f2442b845 --- /dev/null +++ b/arch/mips/include/asm/mach-generic/ioremap.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * include/asm-mips/mach-generic/ioremap.h + */ +#ifndef __ASM_MACH_GENERIC_IOREMAP_H +#define __ASM_MACH_GENERIC_IOREMAP_H + +#include <linux/types.h> + +static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size, + unsigned long flags) +{ + return NULL; +} + +static inline int plat_iounmap(const volatile void __iomem *addr) +{ + return 0; +} + +#endif /* __ASM_MACH_GENERIC_IOREMAP_H */ diff --git a/arch/mips/include/asm/mach-generic/irq.h b/arch/mips/include/asm/mach-generic/irq.h new file mode 100644 index 000000000..079889ced --- /dev/null +++ b/arch/mips/include/asm/mach-generic/irq.h @@ -0,0 +1,39 @@ +/* + * 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. + * + * Copyright (C) 2003 by Ralf Baechle + */ +#ifndef __ASM_MACH_GENERIC_IRQ_H +#define __ASM_MACH_GENERIC_IRQ_H + +#ifndef NR_IRQS +#define NR_IRQS 256 +#endif + +#ifdef CONFIG_I8259 +#ifndef I8259A_IRQ_BASE +#define I8259A_IRQ_BASE 0 +#endif +#endif + +#ifdef CONFIG_IRQ_MIPS_CPU + +#ifndef MIPS_CPU_IRQ_BASE +#ifdef CONFIG_I8259 +#define MIPS_CPU_IRQ_BASE 16 +#else +#define MIPS_CPU_IRQ_BASE 0 +#endif /* CONFIG_I8259 */ +#endif + +#ifdef CONFIG_IRQ_CPU_RM7K +#ifndef RM7K_CPU_IRQ_BASE +#define RM7K_CPU_IRQ_BASE (MIPS_CPU_IRQ_BASE+8) +#endif +#endif + +#endif /* CONFIG_IRQ_MIPS_CPU */ + +#endif /* __ASM_MACH_GENERIC_IRQ_H */ diff --git a/arch/mips/include/asm/mach-generic/kernel-entry-init.h b/arch/mips/include/asm/mach-generic/kernel-entry-init.h new file mode 100644 index 000000000..a229297c8 --- /dev/null +++ b/arch/mips/include/asm/mach-generic/kernel-entry-init.h @@ -0,0 +1,25 @@ +/* + * 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. + * + * Copyright (C) 2005 Embedded Alley Solutions, Inc + * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) + */ +#ifndef __ASM_MACH_GENERIC_KERNEL_ENTRY_H +#define __ASM_MACH_GENERIC_KERNEL_ENTRY_H + +/* Intentionally empty macro, used in head.S. Override in + * arch/mips/mach-xxx/kernel-entry-init.h when necessary. + */ + .macro kernel_entry_setup + .endm + +/* + * Do SMP slave processor setup necessary before we can safely execute C code. + */ + .macro smp_slave_setup + .endm + + +#endif /* __ASM_MACH_GENERIC_KERNEL_ENTRY_H */ diff --git a/arch/mips/include/asm/mach-generic/kmalloc.h b/arch/mips/include/asm/mach-generic/kmalloc.h new file mode 100644 index 000000000..649a98338 --- /dev/null +++ b/arch/mips/include/asm/mach-generic/kmalloc.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_MACH_GENERIC_KMALLOC_H +#define __ASM_MACH_GENERIC_KMALLOC_H + +#ifdef CONFIG_DMA_NONCOHERENT +/* + * Total overkill for most systems but need as a safe default. + * Set this one if any device in the system might do non-coherent DMA. + */ +#define ARCH_DMA_MINALIGN 128 +#endif + +#endif /* __ASM_MACH_GENERIC_KMALLOC_H */ diff --git a/arch/mips/include/asm/mach-generic/mangle-port.h b/arch/mips/include/asm/mach-generic/mangle-port.h new file mode 100644 index 000000000..77c65c294 --- /dev/null +++ b/arch/mips/include/asm/mach-generic/mangle-port.h @@ -0,0 +1,52 @@ +/* + * 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. + * + * Copyright (C) 2003, 2004 Ralf Baechle + */ +#ifndef __ASM_MACH_GENERIC_MANGLE_PORT_H +#define __ASM_MACH_GENERIC_MANGLE_PORT_H + +#define __swizzle_addr_b(port) (port) +#define __swizzle_addr_w(port) (port) +#define __swizzle_addr_l(port) (port) +#define __swizzle_addr_q(port) (port) + +/* + * Sane hardware offers swapping of PCI/ISA I/O space accesses in hardware; + * less sane hardware forces software to fiddle with this... + * + * Regardless, if the host bus endianness mismatches that of PCI/ISA, then + * you can't have the numerical value of data and byte addresses within + * multibyte quantities both preserved at the same time. Hence two + * variations of functions: non-prefixed ones that preserve the value + * and prefixed ones that preserve byte addresses. The latters are + * typically used for moving raw data between a peripheral and memory (cf. + * string I/O functions), hence the "__mem_" prefix. + */ +#if defined(CONFIG_SWAP_IO_SPACE) + +# define ioswabb(a, x) (x) +# define __mem_ioswabb(a, x) (x) +# define ioswabw(a, x) le16_to_cpu((__force __le16)(x)) +# define __mem_ioswabw(a, x) (x) +# define ioswabl(a, x) le32_to_cpu((__force __le32)(x)) +# define __mem_ioswabl(a, x) (x) +# define ioswabq(a, x) le64_to_cpu((__force __le64)(x)) +# define __mem_ioswabq(a, x) (x) + +#else + +# define ioswabb(a, x) (x) +# define __mem_ioswabb(a, x) (x) +# define ioswabw(a, x) (x) +# define __mem_ioswabw(a, x) ((__force u16)cpu_to_le16(x)) +# define ioswabl(a, x) (x) +# define __mem_ioswabl(a, x) ((__force u32)cpu_to_le32(x)) +# define ioswabq(a, x) (x) +# define __mem_ioswabq(a, x) ((__force u64)cpu_to_le64(x)) + +#endif + +#endif /* __ASM_MACH_GENERIC_MANGLE_PORT_H */ diff --git a/arch/mips/include/asm/mach-generic/mc146818rtc.h b/arch/mips/include/asm/mach-generic/mc146818rtc.h new file mode 100644 index 000000000..9c72e540f --- /dev/null +++ b/arch/mips/include/asm/mach-generic/mc146818rtc.h @@ -0,0 +1,36 @@ +/* + * 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. + * + * Copyright (C) 1998, 2001, 03 by Ralf Baechle + * + * RTC routines for PC style attached Dallas chip. + */ +#ifndef __ASM_MACH_GENERIC_MC146818RTC_H +#define __ASM_MACH_GENERIC_MC146818RTC_H + +#include <asm/io.h> + +#define RTC_PORT(x) (0x70 + (x)) +#define RTC_IRQ 8 + +static inline unsigned char CMOS_READ(unsigned long addr) +{ + outb_p(addr, RTC_PORT(0)); + return inb_p(RTC_PORT(1)); +} + +static inline void CMOS_WRITE(unsigned char data, unsigned long addr) +{ + outb_p(addr, RTC_PORT(0)); + outb_p(data, RTC_PORT(1)); +} + +#define RTC_ALWAYS_BCD 0 + +#ifndef mc146818_decode_year +#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900) +#endif + +#endif /* __ASM_MACH_GENERIC_MC146818RTC_H */ diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h new file mode 100644 index 000000000..c3ac06a6a --- /dev/null +++ b/arch/mips/include/asm/mach-generic/spaces.h @@ -0,0 +1,110 @@ +/* + * 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. + * + * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle + * Copyright (C) 2000, 2002 Maciej W. Rozycki + * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc. + */ +#ifndef _ASM_MACH_GENERIC_SPACES_H +#define _ASM_MACH_GENERIC_SPACES_H + +#include <linux/const.h> + +#include <asm/mipsregs.h> + +#ifndef IO_SPACE_LIMIT +#define IO_SPACE_LIMIT 0xffff +#endif + +/* + * This gives the physical RAM offset. + */ +#ifndef __ASSEMBLY__ +# if defined(CONFIG_MIPS_AUTO_PFN_OFFSET) +# define PHYS_OFFSET ((unsigned long)PFN_PHYS(ARCH_PFN_OFFSET)) +# elif !defined(PHYS_OFFSET) +# define PHYS_OFFSET _AC(0, UL) +# endif +#endif /* __ASSEMBLY__ */ + +#ifdef CONFIG_32BIT +#ifdef CONFIG_KVM_GUEST +#define CAC_BASE _AC(0x40000000, UL) +#else +#define CAC_BASE _AC(0x80000000, UL) +#endif +#ifndef IO_BASE +#define IO_BASE _AC(0xa0000000, UL) +#endif +#ifndef UNCAC_BASE +#define UNCAC_BASE _AC(0xa0000000, UL) +#endif + +#ifndef MAP_BASE +#ifdef CONFIG_KVM_GUEST +#define MAP_BASE _AC(0x60000000, UL) +#else +#define MAP_BASE _AC(0xc0000000, UL) +#endif +#endif + +/* + * Memory above this physical address will be considered highmem. + */ +#ifndef HIGHMEM_START +#define HIGHMEM_START _AC(0x20000000, UL) +#endif + +#endif /* CONFIG_32BIT */ + +#ifdef CONFIG_64BIT + +#ifndef CAC_BASE +#define CAC_BASE PHYS_TO_XKPHYS(read_c0_config() & CONF_CM_CMASK, 0) +#endif + +#ifndef IO_BASE +#define IO_BASE _AC(0x9000000000000000, UL) +#endif + +#ifndef UNCAC_BASE +#define UNCAC_BASE _AC(0x9000000000000000, UL) +#endif + +#ifndef MAP_BASE +#define MAP_BASE _AC(0xc000000000000000, UL) +#endif + +/* + * Memory above this physical address will be considered highmem. + * Fixme: 59 bits is a fictive number and makes assumptions about processors + * in the distant future. Nobody will care for a few years :-) + */ +#ifndef HIGHMEM_START +#define HIGHMEM_START (_AC(1, UL) << _AC(59, UL)) +#endif + +#define TO_PHYS(x) ( ((x) & TO_PHYS_MASK)) +#define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK)) +#define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK)) + +#endif /* CONFIG_64BIT */ + +/* + * This handles the memory map. + */ +#ifndef PAGE_OFFSET +#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET) +#endif + +#ifndef FIXADDR_TOP +#ifdef CONFIG_KVM_GUEST +#define FIXADDR_TOP ((unsigned long)(long)(int)0x7ffe0000) +#else +#define FIXADDR_TOP ((unsigned long)(long)(int)0xfffe0000) +#endif +#endif + +#endif /* __ASM_MACH_GENERIC_SPACES_H */ diff --git a/arch/mips/include/asm/mach-generic/topology.h b/arch/mips/include/asm/mach-generic/topology.h new file mode 100644 index 000000000..5428f333a --- /dev/null +++ b/arch/mips/include/asm/mach-generic/topology.h @@ -0,0 +1 @@ +#include <asm-generic/topology.h> |