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Hexagon: Core arch-specific header files

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Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Linas Vepstas <linas@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Kuo 2011-10-31 18:27:03 -05:00 committed by Linus Torvalds
parent cd8e65fb96
commit 8feca0e182
12 changed files with 618 additions and 0 deletions
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28
arch/hexagon/include/asm/byteorder.h Normal file
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/*
* 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 */

229
arch/hexagon/include/asm/elf.h Normal file
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/*
* 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

4
arch/hexagon/include/asm/fpu.h Normal file
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/*
* If the FPU is used inside the kernel,
* kernel_fpu_end() will be defined here.
*/

137
arch/hexagon/include/asm/futex.h Normal file
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#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 */

25
arch/hexagon/include/asm/linkage.h Normal file
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/*
* 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

26
arch/hexagon/include/asm/module.h Normal file
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/*
* 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

26
arch/hexagon/include/asm/param.h Normal file
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/*
* 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

24
arch/hexagon/include/asm/perf_event.h Normal file
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/*
* 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 */

32
arch/hexagon/include/asm/string.h Normal file
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/*
* 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_ */

27
arch/hexagon/include/asm/suspend.h Normal file
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/*
* 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

24
arch/hexagon/include/asm/swab.h Normal file
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/*
* 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

36
arch/hexagon/include/asm/timex.h Normal file
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/*
* 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