diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/unicore32/Makefile | 2 | ||||
| -rw-r--r-- | arch/unicore32/include/asm/futex.h | 143 | ||||
| -rw-r--r-- | arch/unicore32/include/mach/PKUnity.h | 10 | ||||
| -rw-r--r-- | arch/unicore32/include/mach/memory.h | 1 | ||||
| -rw-r--r-- | arch/unicore32/kernel/puv3-core.c | 5 | ||||
| -rw-r--r-- | arch/unicore32/kernel/rtc.c | 9 | ||||
| -rw-r--r-- | arch/unicore32/kernel/setup.c | 15 | ||||
| -rw-r--r-- | arch/unicore32/kernel/traps.c | 1 | ||||
| -rw-r--r-- | arch/unicore32/kernel/vmlinux.lds.S | 7 | ||||
| -rw-r--r-- | arch/unicore32/mm/mmu.c | 20 |
10 files changed, 7 insertions, 206 deletions
diff --git a/arch/unicore32/Makefile b/arch/unicore32/Makefile index e08d6d370a8a..76a8beec7d03 100644 --- a/arch/unicore32/Makefile +++ b/arch/unicore32/Makefile @@ -48,7 +48,7 @@ ASM_GENERIC_HEADERS += bitsperlong.h bug.h bugs.h ASM_GENERIC_HEADERS += cputime.h current.h ASM_GENERIC_HEADERS += device.h div64.h ASM_GENERIC_HEADERS += emergency-restart.h errno.h -ASM_GENERIC_HEADERS += fb.h fcntl.h ftrace.h +ASM_GENERIC_HEADERS += fb.h fcntl.h ftrace.h futex.h ASM_GENERIC_HEADERS += hardirq.h hw_irq.h ASM_GENERIC_HEADERS += ioctl.h ioctls.h ipcbuf.h irq_regs.h ASM_GENERIC_HEADERS += kdebug.h kmap_types.h diff --git a/arch/unicore32/include/asm/futex.h b/arch/unicore32/include/asm/futex.h deleted file mode 100644 index 07dea6170558..000000000000 --- a/arch/unicore32/include/asm/futex.h +++ /dev/null @@ -1,143 +0,0 @@ -/* - * linux/arch/unicore32/include/asm/futex.h - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * 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. - */ - -#ifndef __UNICORE_FUTEX_H__ -#define __UNICORE_FUTEX_H__ - -#ifdef __KERNEL__ - -#include <linux/futex.h> -#include <linux/preempt.h> -#include <linux/uaccess.h> -#include <linux/errno.h> - -#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \ - __asm__ __volatile__( \ - "1: ldw.u %1, [%2]\n" \ - " " insn "\n" \ - "2: stw.u %0, [%2]\n" \ - " mov %0, #0\n" \ - "3:\n" \ - " .pushsection __ex_table,\"a\"\n" \ - " .align 3\n" \ - " .long 1b, 4f, 2b, 4f\n" \ - " .popsection\n" \ - " .pushsection .fixup,\"ax\"\n" \ - "4: mov %0, %4\n" \ - " b 3b\n" \ - " .popsection" \ - : "=&r" (ret), "=&r" (oldval) \ - : "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \ - : "cc", "memory") - -static inline int -futex_atomic_op_inuser(int encoded_op, int __user *uaddr) -{ - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; - int oparg = (encoded_op << 8) >> 20; - int cmparg = (encoded_op << 20) >> 20; - int oldval = 0, ret; - - if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) - oparg = 1 << oparg; - - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) - return -EFAULT; - - pagefault_disable(); /* implies preempt_disable() */ - - switch (op) { - case FUTEX_OP_SET: - __futex_atomic_op("mov %0, %3", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_ADD: - __futex_atomic_op("add %0, %1, %3", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_OR: - __futex_atomic_op("or %0, %1, %3", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_ANDN: - __futex_atomic_op("and %0, %1, %3", - ret, oldval, uaddr, ~oparg); - break; - case FUTEX_OP_XOR: - __futex_atomic_op("xor %0, %1, %3", ret, oldval, uaddr, oparg); - break; - default: - ret = -ENOSYS; - } - - pagefault_enable(); /* subsumes preempt_enable() */ - - if (!ret) { - switch (cmp) { - case FUTEX_OP_CMP_EQ: - ret = (oldval == cmparg); - break; - case FUTEX_OP_CMP_NE: - ret = (oldval != cmparg); - break; - case FUTEX_OP_CMP_LT: - ret = (oldval < cmparg); - break; - case FUTEX_OP_CMP_GE: - ret = (oldval >= cmparg); - break; - case FUTEX_OP_CMP_LE: - ret = (oldval <= cmparg); - break; - case FUTEX_OP_CMP_GT: - ret = (oldval > cmparg); - break; - default: - ret = -ENOSYS; - } - } - return ret; -} - -static inline int -futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) -{ - int val; - - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) - return -EFAULT; - - pagefault_disable(); /* implies preempt_disable() */ - - __asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n" - "1: ldw.u %0, [%3]\n" - " cmpxor.a %0, %1\n" - " bne 3f\n" - "2: stw.u %2, [%3]\n" - "3:\n" - " .pushsection __ex_table,\"a\"\n" - " .align 3\n" - " .long 1b, 4f, 2b, 4f\n" - " .popsection\n" - " .pushsection .fixup,\"ax\"\n" - "4: mov %0, %4\n" - " b 3b\n" - " .popsection" - : "=&r" (val) - : "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT) - : "cc", "memory"); - - pagefault_enable(); /* subsumes preempt_enable() */ - - return val; -} - -#endif /* __KERNEL__ */ -#endif /* __UNICORE_FUTEX_H__ */ diff --git a/arch/unicore32/include/mach/PKUnity.h b/arch/unicore32/include/mach/PKUnity.h index a18bdc3810e6..8040d575dddb 100644 --- a/arch/unicore32/include/mach/PKUnity.h +++ b/arch/unicore32/include/mach/PKUnity.h @@ -24,16 +24,6 @@ #define PKUNITY_MMIO_BASE 0x80000000 /* 0x80000000 - 0xFFFFFFFF 2GB */ /* - * PKUNITY Memory Map Addresses: 0x0D000000 - 0x0EFFFFFF (32MB) - * 0x0D000000 - 0x0DFFFFFF 16MB: for UVC - * 0x0E000000 - 0x0EFFFFFF 16MB: for UNIGFX - */ -#define PKUNITY_UVC_MMAP_BASE 0x0D000000 -#define PKUNITY_UVC_MMAP_SIZE 0x01000000 /* 16MB */ -#define PKUNITY_UNIGFX_MMAP_BASE 0x0E000000 -#define PKUNITY_UNIGFX_MMAP_SIZE 0x01000000 /* 16MB */ - -/* * PKUNITY System Bus Addresses (PCI): 0x80000000 - 0xBFFFFFFF (1GB) * 0x80000000 - 0x8000000B 12B PCI Configuration regs * 0x80010000 - 0x80010250 592B PCI Bridge Base diff --git a/arch/unicore32/include/mach/memory.h b/arch/unicore32/include/mach/memory.h index 0bf21c944710..4be72c21d491 100644 --- a/arch/unicore32/include/mach/memory.h +++ b/arch/unicore32/include/mach/memory.h @@ -50,7 +50,6 @@ void puv3_pci_adjust_zones(unsigned long *size, unsigned long *holes); /* kuser area */ #define KUSER_VECPAGE_BASE (KUSER_BASE + UL(0x3fff0000)) -#define KUSER_UNIGFX_BASE (PAGE_OFFSET + PKUNITY_UNIGFX_MMAP_BASE) /* kuser_vecpage (0xbfff0000) is ro, and vectors page (0xffff0000) is rw */ #define kuser_vecpage_to_vectors(x) ((x) - (KUSER_VECPAGE_BASE) \ + (VECTORS_BASE)) diff --git a/arch/unicore32/kernel/puv3-core.c b/arch/unicore32/kernel/puv3-core.c index 8b1b6beb858e..1a505a787765 100644 --- a/arch/unicore32/kernel/puv3-core.c +++ b/arch/unicore32/kernel/puv3-core.c @@ -99,11 +99,6 @@ static struct resource puv3_unigfx_resources[] = { .end = io_v2p(PKUNITY_UNIGFX_BASE) + 0xfff, .flags = IORESOURCE_MEM, }, - [1] = { - .start = PKUNITY_UNIGFX_MMAP_BASE, - .end = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE, - .flags = IORESOURCE_MEM, - }, }; static struct resource puv3_rtc_resources[] = { diff --git a/arch/unicore32/kernel/rtc.c b/arch/unicore32/kernel/rtc.c index c5f068295b51..8cad70b3302c 100644 --- a/arch/unicore32/kernel/rtc.c +++ b/arch/unicore32/kernel/rtc.c @@ -88,11 +88,6 @@ static int puv3_rtc_setpie(struct device *dev, int enabled) return 0; } -static int puv3_rtc_setfreq(struct device *dev, int freq) -{ - return 0; -} - /* Time read/write */ static int puv3_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) @@ -214,8 +209,6 @@ static const struct rtc_class_ops puv3_rtcops = { .set_time = puv3_rtc_settime, .read_alarm = puv3_rtc_getalarm, .set_alarm = puv3_rtc_setalarm, - .irq_set_freq = puv3_rtc_setfreq, - .irq_set_state = puv3_rtc_setpie, .proc = puv3_rtc_proc, }; @@ -294,8 +287,6 @@ static int puv3_rtc_probe(struct platform_device *pdev) puv3_rtc_enable(pdev, 1); - puv3_rtc_setfreq(&pdev->dev, 1); - /* register RTC and exit */ rtc = rtc_device_register("pkunity", &pdev->dev, &puv3_rtcops, diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c index 1e175a82844d..471b6bca8da4 100644 --- a/arch/unicore32/kernel/setup.c +++ b/arch/unicore32/kernel/setup.c @@ -64,12 +64,6 @@ static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE; */ static struct resource mem_res[] = { { - .name = "Video RAM", - .start = 0, - .end = 0, - .flags = IORESOURCE_MEM - }, - { .name = "Kernel text", .start = 0, .end = 0, @@ -83,9 +77,8 @@ static struct resource mem_res[] = { } }; -#define video_ram mem_res[0] -#define kernel_code mem_res[1] -#define kernel_data mem_res[2] +#define kernel_code mem_res[0] +#define kernel_data mem_res[1] /* * These functions re-use the assembly code in head.S, which @@ -224,10 +217,6 @@ request_standard_resources(struct meminfo *mi) kernel_data.end <= res->end) request_resource(res, &kernel_data); } - - video_ram.start = PKUNITY_UNIGFX_MMAP_BASE; - video_ram.end = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE; - request_resource(&iomem_resource, &video_ram); } static void (*init_machine)(void) __initdata; diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c index 25abbb101729..254e36fa9513 100644 --- a/arch/unicore32/kernel/traps.c +++ b/arch/unicore32/kernel/traps.c @@ -22,7 +22,6 @@ #include <linux/delay.h> #include <linux/hardirq.h> #include <linux/init.h> -#include <linux/uaccess.h> #include <linux/atomic.h> #include <linux/unistd.h> diff --git a/arch/unicore32/kernel/vmlinux.lds.S b/arch/unicore32/kernel/vmlinux.lds.S index 0b4eb89729e7..9bf7f7af52c5 100644 --- a/arch/unicore32/kernel/vmlinux.lds.S +++ b/arch/unicore32/kernel/vmlinux.lds.S @@ -14,6 +14,7 @@ #include <asm/thread_info.h> #include <asm/memory.h> #include <asm/page.h> +#include <asm/cache.h> OUTPUT_ARCH(unicore32) ENTRY(stext) @@ -29,7 +30,7 @@ SECTIONS HEAD_TEXT_SECTION INIT_TEXT_SECTION(PAGE_SIZE) INIT_DATA_SECTION(16) - PERCPU(PAGE_SIZE) + PERCPU(L1_CACHE_BYTES, PAGE_SIZE) __init_end = .; _stext = .; @@ -45,10 +46,10 @@ SECTIONS _sdata = .; RO_DATA_SECTION(PAGE_SIZE) - RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE) + RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE) _edata = .; - EXCEPTION_TABLE(32) + EXCEPTION_TABLE(L1_CACHE_BYTES) NOTES BSS_SECTION(0, 0, 0) diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c index 7bf3d588631f..db2d334941b4 100644 --- a/arch/unicore32/mm/mmu.c +++ b/arch/unicore32/mm/mmu.c @@ -338,15 +338,6 @@ void __init uc32_mm_memblock_reserve(void) * and can only be in node 0. */ memblock_reserve(__pa(swapper_pg_dir), PTRS_PER_PGD * sizeof(pgd_t)); - -#ifdef CONFIG_PUV3_UNIGFX - /* - * These should likewise go elsewhere. They pre-reserve the - * screen/video memory region at the 48M~64M of main system memory. - */ - memblock_reserve(PKUNITY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE); - memblock_reserve(PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE); -#endif } /* @@ -371,17 +362,6 @@ static void __init devicemaps_init(void) pmd_clear(pmd_off_k(addr)); /* - * Create a mapping for UniGFX VRAM - */ -#ifdef CONFIG_PUV3_UNIGFX - map.pfn = __phys_to_pfn(PKUNITY_UNIGFX_MMAP_BASE); - map.virtual = KUSER_UNIGFX_BASE; - map.length = PKUNITY_UNIGFX_MMAP_SIZE; - map.type = MT_KUSER; - create_mapping(&map); -#endif - - /* * Create a mapping for the machine vectors at the high-vectors * location (0xffff0000). If we aren't using high-vectors, also * create a mapping at the low-vectors virtual address. |