diff options
Diffstat (limited to 'arch/hexagon')
| -rw-r--r-- | arch/hexagon/include/asm/byteorder.h | 28 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/elf.h | 229 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/fpu.h | 4 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/futex.h | 137 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/linkage.h | 25 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/module.h | 26 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/param.h | 26 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/perf_event.h | 24 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/string.h | 32 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/suspend.h | 27 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/swab.h | 24 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/timex.h | 36 |
12 files changed, 618 insertions, 0 deletions
diff --git a/arch/hexagon/include/asm/byteorder.h b/arch/hexagon/include/asm/byteorder.h new file mode 100644 index 000000000000..0e19b9fe4ca6 --- /dev/null +++ b/arch/hexagon/include/asm/byteorder.h @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_BYTEORDER_H +#define _ASM_BYTEORDER_H + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +#endif + +#include <linux/byteorder/little_endian.h> + +#endif /* _ASM_BYTEORDER_H */ diff --git a/arch/hexagon/include/asm/elf.h b/arch/hexagon/include/asm/elf.h new file mode 100644 index 000000000000..37976a0d3650 --- /dev/null +++ b/arch/hexagon/include/asm/elf.h @@ -0,0 +1,229 @@ +/* + * ELF definitions for the Hexagon architecture + * + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef __ASM_ELF_H +#define __ASM_ELF_H + +#include <asm/ptrace.h> +#include <asm/user.h> + +/* + * This should really be in linux/elf-em.h. + */ +#define EM_HEXAGON 164 /* QUALCOMM Hexagon */ + +struct elf32_hdr; + +/* + * ELF header e_flags defines. + */ + +/* should have stuff like "CPU type" and maybe "ABI version", etc */ + +/* Hexagon relocations */ + /* V2 */ +#define R_HEXAGON_NONE 0 +#define R_HEXAGON_B22_PCREL 1 +#define R_HEXAGON_B15_PCREL 2 +#define R_HEXAGON_B7_PCREL 3 +#define R_HEXAGON_LO16 4 +#define R_HEXAGON_HI16 5 +#define R_HEXAGON_32 6 +#define R_HEXAGON_16 7 +#define R_HEXAGON_8 8 +#define R_HEXAGON_GPREL16_0 9 +#define R_HEXAGON_GPREL16_1 10 +#define R_HEXAGON_GPREL16_2 11 +#define R_HEXAGON_GPREL16_3 12 +#define R_HEXAGON_HL16 13 + /* V3 */ +#define R_HEXAGON_B13_PCREL 14 + /* V4 */ +#define R_HEXAGON_B9_PCREL 15 + /* V4 (extenders) */ +#define R_HEXAGON_B32_PCREL_X 16 +#define R_HEXAGON_32_6_X 17 + /* V4 (extended) */ +#define R_HEXAGON_B22_PCREL_X 18 +#define R_HEXAGON_B15_PCREL_X 19 +#define R_HEXAGON_B13_PCREL_X 20 +#define R_HEXAGON_B9_PCREL_X 21 +#define R_HEXAGON_B7_PCREL_X 22 +#define R_HEXAGON_16_X 23 +#define R_HEXAGON_12_X 24 +#define R_HEXAGON_11_X 25 +#define R_HEXAGON_10_X 26 +#define R_HEXAGON_9_X 27 +#define R_HEXAGON_8_X 28 +#define R_HEXAGON_7_X 29 +#define R_HEXAGON_6_X 30 + /* V2 PIC */ +#define R_HEXAGON_32_PCREL 31 +#define R_HEXAGON_COPY 32 +#define R_HEXAGON_GLOB_DAT 33 +#define R_HEXAGON_JMP_SLOT 34 +#define R_HEXAGON_RELATIVE 35 +#define R_HEXAGON_PLT_B22_PCREL 36 +#define R_HEXAGON_GOTOFF_LO16 37 +#define R_HEXAGON_GOTOFF_HI16 38 +#define R_HEXAGON_GOTOFF_32 39 +#define R_HEXAGON_GOT_LO16 40 +#define R_HEXAGON_GOT_HI16 41 +#define R_HEXAGON_GOT_32 42 +#define R_HEXAGON_GOT_16 43 + +/* + * ELF register definitions.. + */ +typedef unsigned long elf_greg_t; + +typedef struct user_regs_struct elf_gregset_t; +#define ELF_NGREG (sizeof(elf_gregset_t)/sizeof(unsigned long)) + +/* Placeholder */ +typedef unsigned long elf_fpregset_t; + +/* + * Bypass the whole "regsets" thing for now and use the define. + */ + +#define ELF_CORE_COPY_REGS(DEST, REGS) \ +do { \ + DEST.r0 = REGS->r00; \ + DEST.r1 = REGS->r01; \ + DEST.r2 = REGS->r02; \ + DEST.r3 = REGS->r03; \ + DEST.r4 = REGS->r04; \ + DEST.r5 = REGS->r05; \ + DEST.r6 = REGS->r06; \ + DEST.r7 = REGS->r07; \ + DEST.r8 = REGS->r08; \ + DEST.r9 = REGS->r09; \ + DEST.r10 = REGS->r10; \ + DEST.r11 = REGS->r11; \ + DEST.r12 = REGS->r12; \ + DEST.r13 = REGS->r13; \ + DEST.r14 = REGS->r14; \ + DEST.r15 = REGS->r15; \ + DEST.r16 = REGS->r16; \ + DEST.r17 = REGS->r17; \ + DEST.r18 = REGS->r18; \ + DEST.r19 = REGS->r19; \ + DEST.r20 = REGS->r20; \ + DEST.r21 = REGS->r21; \ + DEST.r22 = REGS->r22; \ + DEST.r23 = REGS->r23; \ + DEST.r24 = REGS->r24; \ + DEST.r25 = REGS->r25; \ + DEST.r26 = REGS->r26; \ + DEST.r27 = REGS->r27; \ + DEST.r28 = REGS->r28; \ + DEST.r29 = pt_psp(REGS); \ + DEST.r30 = REGS->r30; \ + DEST.r31 = REGS->r31; \ + DEST.sa0 = REGS->sa0; \ + DEST.lc0 = REGS->lc0; \ + DEST.sa1 = REGS->sa1; \ + DEST.lc1 = REGS->lc1; \ + DEST.m0 = REGS->m0; \ + DEST.m1 = REGS->m1; \ + DEST.usr = REGS->usr; \ + DEST.p3_0 = REGS->preds; \ + DEST.gp = REGS->gp; \ + DEST.ugp = REGS->ugp; \ + DEST.pc = pt_elr(REGS); \ + DEST.cause = pt_cause(REGS); \ + DEST.badva = pt_badva(REGS); \ +} while (0); + + + +/* + * This is used to ensure we don't load something for the wrong architecture. + * Checks the machine and ABI type. + */ +#define elf_check_arch(hdr) ((hdr)->e_machine == EM_HEXAGON) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_HEXAGON + +#ifdef CONFIG_HEXAGON_ARCH_V2 +#define ELF_CORE_EFLAGS 0x1 +#endif + +#ifdef CONFIG_HEXAGON_ARCH_V3 +#define ELF_CORE_EFLAGS 0x2 +#endif + +#ifdef CONFIG_HEXAGON_ARCH_V4 +#define ELF_CORE_EFLAGS 0x3 +#endif + +/* + * Some architectures have ld.so set up a pointer to a function + * to be registered using atexit, to facilitate cleanup. So that + * static executables will be well-behaved, we would null the register + * in question here, in the pt_regs structure passed. For now, + * leave it a null macro. + */ +#define ELF_PLAT_INIT(regs, load_addr) do { } while (0) + +#define USE_ELF_CORE_DUMP +#define CORE_DUMP_USE_REGSET + +/* Hrm is this going to cause problems for changing PAGE_SIZE? */ +#define ELF_EXEC_PAGESIZE 4096 + +/* + * This is the location that an ET_DYN program is loaded if exec'ed. Typical + * use of this is to invoke "./ld.so someprog" to test out a new version of + * the loader. We need to make sure that it is out of the way of the program + * that it will "exec", and that there is sufficient room for the brk. + */ +#define ELF_ET_DYN_BASE 0x08000000UL + +/* + * This yields a mask that user programs can use to figure out what + * instruction set this cpu supports. + */ +#define ELF_HWCAP (0) + +/* + * This yields a string that ld.so will use to load implementation + * specific libraries for optimization. This is more specific in + * intent than poking at uname or /proc/cpuinfo. + */ +#define ELF_PLATFORM (NULL) + +#ifdef __KERNEL__ +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) +#endif + +#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 +struct linux_binprm; +extern int arch_setup_additional_pages(struct linux_binprm *bprm, + int uses_interp); + + +#endif diff --git a/arch/hexagon/include/asm/fpu.h b/arch/hexagon/include/asm/fpu.h new file mode 100644 index 000000000000..0e135ea8c45b --- /dev/null +++ b/arch/hexagon/include/asm/fpu.h @@ -0,0 +1,4 @@ +/* + * If the FPU is used inside the kernel, + * kernel_fpu_end() will be defined here. + */ diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h new file mode 100644 index 000000000000..7e597f8434da --- /dev/null +++ b/arch/hexagon/include/asm/futex.h @@ -0,0 +1,137 @@ +#ifndef _ASM_HEXAGON_FUTEX_H +#define _ASM_HEXAGON_FUTEX_H + +#ifdef __KERNEL__ + +#include <linux/futex.h> +#include <linux/uaccess.h> +#include <asm/errno.h> + +/* XXX TODO-- need to add sync barriers! */ + +#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \ + __asm__ __volatile( \ + "1: %0 = memw_locked(%3);\n" \ + /* For example: %1 = %4 */ \ + insn \ + "2: memw_locked(%3,p2) = %1;\n" \ + " if !p2 jump 1b;\n" \ + " %1 = #0;\n" \ + "3:\n" \ + ".section .fixup,\"ax\"\n" \ + "4: %1 = #%5;\n" \ + " jump 3b\n" \ + ".previous\n" \ + ".section __ex_table,\"a\"\n" \ + ".long 1b,4b,2b,4b\n" \ + ".previous\n" \ + : "=&r" (oldval), "=&r" (ret), "+m" (*uaddr) \ + : "r" (uaddr), "r" (oparg), "i" (-EFAULT) \ + : "p2", "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(); + + switch (op) { + case FUTEX_OP_SET: + __futex_atomic_op("%1 = %4\n", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_ADD: + __futex_atomic_op("%1 = add(%0,%4)\n", ret, oldval, uaddr, + oparg); + break; + case FUTEX_OP_OR: + __futex_atomic_op("%1 = or(%0,%4)\n", ret, oldval, uaddr, + oparg); + break; + case FUTEX_OP_ANDN: + __futex_atomic_op("%1 = not(%4); %1 = and(%0,%1)\n", ret, + oldval, uaddr, oparg); + break; + case FUTEX_OP_XOR: + __futex_atomic_op("%1 = xor(%0,%4)\n", ret, oldval, uaddr, + oparg); + break; + default: + ret = -ENOSYS; + } + + pagefault_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(u32 *uval, u32 __user *uaddr, u32 oldval, + u32 newval) +{ + int prev; + int ret; + + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) + return -EFAULT; + + __asm__ __volatile__ ( + "1: %1 = memw_locked(%3)\n" + " {\n" + " p2 = cmp.eq(%1,%4)\n" + " if !p2.new jump:NT 3f\n" + " }\n" + "2: memw_locked(%3,p2) = %5\n" + " if !p2 jump 1b\n" + "3:\n" + ".section .fixup,\"ax\"\n" + "4: %0 = #%6\n" + " jump 3b\n" + ".previous\n" + ".section __ex_table,\"a\"\n" + ".long 1b,4b,2b,4b\n" + ".previous\n" + : "+r" (ret), "=&r" (prev), "+m" (*uaddr) + : "r" (uaddr), "r" (oldval), "r" (newval), "i"(-EFAULT) + : "p2", "memory"); + + *uval = prev; + return ret; +} + +#endif /* __KERNEL__ */ +#endif /* _ASM_HEXAGON_FUTEX_H */ diff --git a/arch/hexagon/include/asm/linkage.h b/arch/hexagon/include/asm/linkage.h new file mode 100644 index 000000000000..a00b85f680b8 --- /dev/null +++ b/arch/hexagon/include/asm/linkage.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef __ASM_LINKAGE_H +#define __ASM_LINKAGE_H + +#define __ALIGN .align 4 +#define __ALIGN_STR ".align 4" + +#endif diff --git a/arch/hexagon/include/asm/module.h b/arch/hexagon/include/asm/module.h new file mode 100644 index 000000000000..72ba494e6d7d --- /dev/null +++ b/arch/hexagon/include/asm/module.h @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_MODULE_H +#define _ASM_MODULE_H + +#include <asm-generic/module.h> + +#define MODULE_ARCH_VERMAGIC __stringify(PROCESSOR_MODEL_NAME) " " + +#endif diff --git a/arch/hexagon/include/asm/param.h b/arch/hexagon/include/asm/param.h new file mode 100644 index 000000000000..285344bbd036 --- /dev/null +++ b/arch/hexagon/include/asm/param.h @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_PARAM_H +#define _ASM_PARAM_H + +#define EXEC_PAGESIZE 16384 + +#include <asm-generic/param.h> + +#endif diff --git a/arch/hexagon/include/asm/perf_event.h b/arch/hexagon/include/asm/perf_event.h new file mode 100644 index 000000000000..6c2910f91180 --- /dev/null +++ b/arch/hexagon/include/asm/perf_event.h @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_PERF_EVENT_H +#define _ASM_PERF_EVENT_H + +#define PERF_EVENT_INDEX_OFFSET 0 + +#endif /* _ASM_PERF_EVENT_H */ diff --git a/arch/hexagon/include/asm/string.h b/arch/hexagon/include/asm/string.h new file mode 100644 index 000000000000..f4489c15942c --- /dev/null +++ b/arch/hexagon/include/asm/string.h @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_STRING_H_ +#define _ASM_STRING_H_ + +#ifdef __KERNEL__ +#define __HAVE_ARCH_MEMCPY +extern void *memcpy(void *__to, __const__ void *__from, size_t __n); + +/* ToDo: use dczeroa, accelerate the compiler-constant zero case */ +#define __HAVE_ARCH_MEMSET +extern void *memset(void *__to, int c, size_t __n); +#endif + + +#endif /* _ASM_STRING_H_ */ diff --git a/arch/hexagon/include/asm/suspend.h b/arch/hexagon/include/asm/suspend.h new file mode 100644 index 000000000000..089dd8268791 --- /dev/null +++ b/arch/hexagon/include/asm/suspend.h @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_SUSPEND_H +#define _ASM_SUSPEND_H + +static inline int arch_prepare_suspend(void) +{ + return 0; +} + +#endif diff --git a/arch/hexagon/include/asm/swab.h b/arch/hexagon/include/asm/swab.h new file mode 100644 index 000000000000..99cf0be3fb83 --- /dev/null +++ b/arch/hexagon/include/asm/swab.h @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_SWAB_H +#define _ASM_SWAB_H + +#define __SWAB_64_THRU_32__ + +#endif diff --git a/arch/hexagon/include/asm/timex.h b/arch/hexagon/include/asm/timex.h new file mode 100644 index 000000000000..b11c62b23f31 --- /dev/null +++ b/arch/hexagon/include/asm/timex.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#ifndef _ASM_TIMEX_H +#define _ASM_TIMEX_H + +#include <asm-generic/timex.h> +#include <asm/timer-regs.h> + +/* Using TCX0 as our clock. CLOCK_TICK_RATE scheduled to be removed. */ +#define CLOCK_TICK_RATE TCX0_CLK_RATE + +#define ARCH_HAS_READ_CURRENT_TIMER + +static inline int read_current_timer(unsigned long *timer_val) +{ + *timer_val = (unsigned long) __vmgettime(); + return 0; +} + +#endif |
