diff options
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/io.h | 98 | ||||
| -rw-r--r-- | arch/arm/include/asm/macro.h | 37 | ||||
| -rw-r--r-- | arch/arm/include/asm/system.h | 1 |
3 files changed, 14 insertions, 122 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 36b840378a9..89b1015bc4d 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -1,45 +1,26 @@ /* - * linux/include/asm-arm/io.h + * I/O device access primitives. Based on early versions from the Linux kernel. * * Copyright (C) 1996-2000 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * Modifications: - * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both - * constant addresses and variable addresses. - * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture - * specific IO header files. - * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. - * 04-Apr-1999 PJB Added check_signature. - * 12-Dec-1999 RMK More cleanups - * 18-Jun-2000 RMK Removed virt_to_* and friends definitions */ #ifndef __ASM_ARM_IO_H #define __ASM_ARM_IO_H -#ifdef __KERNEL__ - #include <linux/types.h> #include <linux/kernel.h> #include <asm/byteorder.h> #include <asm/memory.h> #include <asm/barriers.h> -#if 0 /* XXX###XXX */ -#include <asm/arch/hardware.h> -#endif /* XXX###XXX */ static inline void sync(void) { } -/* - * Generic virtual read/write. Note that we don't support half-word - * read/writes. We define __arch_*[bl] here, and leave __arch_*w - * to the architecture specific code. - */ +/* Generic virtual read/write. */ #define __arch_getb(a) (*(volatile unsigned char *)(a)) #define __arch_getw(a) (*(volatile unsigned short *)(a)) #define __arch_getl(a) (*(volatile unsigned int *)(a)) @@ -248,13 +229,6 @@ static inline void __raw_readsl(unsigned long addr, void *data, int longlen) #define clrsetbits_64(addr, clear, set) clrsetbits(64, addr, clear, set) /* - * Now, pick up the machine-defined IO definitions - */ -#if 0 /* XXX###XXX */ -#include <asm/arch/io.h> -#endif /* XXX###XXX */ - -/* * IO port access primitives * ------------------------- * @@ -318,24 +292,12 @@ static inline void __raw_readsl(unsigned long addr, void *data, int longlen) #define readsb(a, d, s) __raw_readsb((unsigned long)a, d, s) /* - * DMA-consistent mapping functions. These allocate/free a region of - * uncached, unwrite-buffered mapped memory space for use with DMA - * devices. This is the "generic" version. The PCI specific version - * is in pci.h - */ -extern void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle); -extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle); -extern void consistent_sync(void *vaddr, size_t size, int rw); - -/* * String version of IO memory access ops: */ extern void _memcpy_fromio(void *, unsigned long, size_t); extern void _memcpy_toio(unsigned long, const void *, size_t); extern void _memset_io(unsigned long, int, size_t); -extern void __readwrite_bug(const char *fn); - /* Optimized copy functions to read from/write to IO sapce */ #ifdef CONFIG_ARM64 #include <cpu_func.h> @@ -441,62 +403,6 @@ void __memset_io(volatile void __iomem *dst, int c, size_t count) #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) #endif -/* - * If this architecture has ISA IO, then define the isa_read/isa_write - * macros. - */ -#ifdef __mem_isa - -#define isa_readb(addr) __raw_readb(__mem_isa(addr)) -#define isa_readw(addr) __raw_readw(__mem_isa(addr)) -#define isa_readl(addr) __raw_readl(__mem_isa(addr)) -#define isa_writeb(val,addr) __raw_writeb(val,__mem_isa(addr)) -#define isa_writew(val,addr) __raw_writew(val,__mem_isa(addr)) -#define isa_writel(val,addr) __raw_writel(val,__mem_isa(addr)) -#define isa_memset_io(a,b,c) _memset_io(__mem_isa(a),(b),(c)) -#define isa_memcpy_fromio(a,b,c) _memcpy_fromio((a),__mem_isa(b),(c)) -#define isa_memcpy_toio(a,b,c) _memcpy_toio(__mem_isa((a)),(b),(c)) - -#define isa_eth_io_copy_and_sum(a,b,c,d) \ - eth_copy_and_sum((a),__mem_isa(b),(c),(d)) - -static inline int -isa_check_signature(unsigned long io_addr, const unsigned char *signature, - int length) -{ - int retval = 0; - do { - if (isa_readb(io_addr) != *signature) - goto out; - io_addr++; - signature++; - length--; - } while (length); - retval = 1; -out: - return retval; -} - -#else /* __mem_isa */ - -#define isa_readb(addr) (__readwrite_bug("isa_readb"),0) -#define isa_readw(addr) (__readwrite_bug("isa_readw"),0) -#define isa_readl(addr) (__readwrite_bug("isa_readl"),0) -#define isa_writeb(val,addr) __readwrite_bug("isa_writeb") -#define isa_writew(val,addr) __readwrite_bug("isa_writew") -#define isa_writel(val,addr) __readwrite_bug("isa_writel") -#define isa_memset_io(a,b,c) __readwrite_bug("isa_memset_io") -#define isa_memcpy_fromio(a,b,c) __readwrite_bug("isa_memcpy_fromio") -#define isa_memcpy_toio(a,b,c) __readwrite_bug("isa_memcpy_toio") - -#define isa_eth_io_copy_and_sum(a,b,c,d) \ - __readwrite_bug("isa_eth_io_copy_and_sum") - -#define isa_check_signature(io,sig,len) (0) - -#endif /* __mem_isa */ -#endif /* __KERNEL__ */ - #include <asm-generic/io.h> #include <iotrace.h> diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h index ec0171e0e6c..1a1edc98703 100644 --- a/arch/arm/include/asm/macro.h +++ b/arch/arm/include/asm/macro.h @@ -69,12 +69,10 @@ lr .req x30 */ .macro switch_el, xreg, el3_label, el2_label, el1_label mrs \xreg, CurrentEL - cmp \xreg, 0xc - b.eq \el3_label - cmp \xreg, 0x8 + cmp \xreg, #0x8 + b.gt \el3_label b.eq \el2_label - cmp \xreg, 0x4 - b.eq \el1_label + b.lt \el1_label .endm /* @@ -123,19 +121,10 @@ lr .req x30 */ .macro branch_if_slave, xreg, slave_label #ifdef CONFIG_ARMV8_MULTIENTRY - /* NOTE: MPIDR handling will be erroneous on multi-cluster machines */ mrs \xreg, mpidr_el1 - tst \xreg, #0xff /* Test Affinity 0 */ - b.ne \slave_label - lsr \xreg, \xreg, #8 - tst \xreg, #0xff /* Test Affinity 1 */ - b.ne \slave_label - lsr \xreg, \xreg, #8 - tst \xreg, #0xff /* Test Affinity 2 */ - b.ne \slave_label - lsr \xreg, \xreg, #16 - tst \xreg, #0xff /* Test Affinity 3 */ - b.ne \slave_label + and \xreg, \xreg, 0xffffffffff /* clear bits [63:40] */ + and \xreg, \xreg, ~0x00ff000000 /* also clear bits [31:24] */ + cbnz \xreg, \slave_label #endif .endm @@ -143,16 +132,12 @@ lr .req x30 * Branch if current processor is a master, * choose processor with all zero affinity value as the master. */ -.macro branch_if_master, xreg1, xreg2, master_label +.macro branch_if_master, xreg, master_label #ifdef CONFIG_ARMV8_MULTIENTRY - /* NOTE: MPIDR handling will be erroneous on multi-cluster machines */ - mrs \xreg1, mpidr_el1 - lsr \xreg2, \xreg1, #32 - lsl \xreg2, \xreg2, #32 - lsl \xreg1, \xreg1, #40 - lsr \xreg1, \xreg1, #40 - orr \xreg1, \xreg1, \xreg2 - cbz \xreg1, \master_label + mrs \xreg, mpidr_el1 + and \xreg, \xreg, 0xffffffffff /* clear bits [63:40] */ + and \xreg, \xreg, ~0x00ff000000 /* also clear bits [31:24] */ + cbz \xreg, \master_label #else b \master_label #endif diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index f75eea16b36..87d1c77e8b1 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -82,6 +82,7 @@ #define HCR_EL2_RW_AARCH64 (1 << 31) /* EL1 is AArch64 */ #define HCR_EL2_RW_AARCH32 (0 << 31) /* Lower levels are AArch32 */ #define HCR_EL2_HCD_DIS (1 << 29) /* Hypervisor Call disabled */ +#define HCR_EL2_AMO_EL2 (1 << 5) /* Route SErrors to EL2 */ /* * ID_AA64ISAR1_EL1 bits definitions |