diff options
Diffstat (limited to 'include/asm-mips')
| -rw-r--r-- | include/asm-mips/abi.h | 25 | ||||
| -rw-r--r-- | include/asm-mips/cpu-features.h | 4 | ||||
| -rw-r--r-- | include/asm-mips/cpu.h | 2 | ||||
| -rw-r--r-- | include/asm-mips/dsp.h | 83 | ||||
| -rw-r--r-- | include/asm-mips/elf.h | 81 | ||||
| -rw-r--r-- | include/asm-mips/inst.h | 8 | ||||
| -rw-r--r-- | include/asm-mips/mach-ip22/cpu-feature-overrides.h | 2 | ||||
| -rw-r--r-- | include/asm-mips/mach-ip27/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mach-ip32/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mach-ja/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mach-ocelot3/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mach-rm200/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mach-sibyte/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mach-yosemite/cpu-feature-overrides.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/mipsregs.h | 287 | ||||
| -rw-r--r-- | include/asm-mips/processor.h | 22 | ||||
| -rw-r--r-- | include/asm-mips/ptrace.h | 4 | ||||
| -rw-r--r-- | include/asm-mips/sigcontext.h | 60 | ||||
| -rw-r--r-- | include/asm-mips/signal.h | 29 | ||||
| -rw-r--r-- | include/asm-mips/system.h | 11 |
20 files changed, 568 insertions, 57 deletions
diff --git a/include/asm-mips/abi.h b/include/asm-mips/abi.h new file mode 100644 index 000000000000..2e7e651c3e3f --- /dev/null +++ b/include/asm-mips/abi.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 by Ralf Baechle + * Copyright (C) 2005 MIPS Technologies, Inc. + */ +#ifndef _ASM_ABI_H +#define _ASM_ABI_H + +#include <asm/signal.h> +#include <asm/siginfo.h> + +struct mips_abi { + int (* const do_signal)(sigset_t *oldset, struct pt_regs *regs); + int (* const setup_frame)(struct k_sigaction * ka, + struct pt_regs *regs, int signr, + sigset_t *set); + int (* const setup_rt_frame)(struct k_sigaction * ka, + struct pt_regs *regs, int signr, + sigset_t *set, siginfo_t *info); +}; + +#endif /* _ASM_ABI_H */ diff --git a/include/asm-mips/cpu-features.h b/include/asm-mips/cpu-features.h index 012deda63e68..4930824a43aa 100644 --- a/include/asm-mips/cpu-features.h +++ b/include/asm-mips/cpu-features.h @@ -105,6 +105,10 @@ #endif #endif +#ifndef cpu_has_dsp +#define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP) +#endif + /* * Certain CPUs may throw bizarre exceptions if not the whole cacheline * contains valid instructions. For these we ensure proper alignment of diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h index a4f85a279c52..2a109a5e0932 100644 --- a/include/asm-mips/cpu.h +++ b/include/asm-mips/cpu.h @@ -77,6 +77,7 @@ #define PRID_IMP_4KEMPR2 0x9100 #define PRID_IMP_4KSD 0x9200 #define PRID_IMP_24K 0x9300 +#define PRID_IMP_24KE 0x9600 #define PRID_IMP_UNKNOWN 0xff00 @@ -232,5 +233,6 @@ #define MIPS_ASE_MDMX 0x00000002 /* MIPS digital media extension */ #define MIPS_ASE_MIPS3D 0x00000004 /* MIPS-3D */ #define MIPS_ASE_SMARTMIPS 0x00000008 /* SmartMIPS */ +#define MIPS_ASE_DSP 0x00000010 /* Signal Processing ASE */ #endif /* _ASM_CPU_H */ diff --git a/include/asm-mips/dsp.h b/include/asm-mips/dsp.h new file mode 100644 index 000000000000..50f556bb4978 --- /dev/null +++ b/include/asm-mips/dsp.h @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2005 Mips Technologies + * Author: Chris Dearman, chris@mips.com derived from fpu.h + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#ifndef _ASM_DSP_H +#define _ASM_DSP_H + +#include <asm/cpu.h> +#include <asm/cpu-features.h> +#include <asm/hazards.h> +#include <asm/mipsregs.h> + +#define DSP_DEFAULT 0x00000000 +#define DSP_MASK 0x1f + +#define __enable_dsp_hazard() \ +do { \ + asm("_ehb"); \ +} while (0) + +static inline void __init_dsp(void) +{ + mthi1(0); + mtlo1(0); + mthi2(0); + mtlo2(0); + mthi3(0); + mtlo3(0); + wrdsp(DSP_DEFAULT, DSP_MASK); +} + +static inline void init_dsp(void) +{ + if (cpu_has_dsp) + __init_dsp(); +} + +#define __save_dsp(tsk) \ +do { \ + tsk->thread.dsp.dspr[0] = mfhi1(); \ + tsk->thread.dsp.dspr[1] = mflo1(); \ + tsk->thread.dsp.dspr[2] = mfhi2(); \ + tsk->thread.dsp.dspr[3] = mflo2(); \ + tsk->thread.dsp.dspr[4] = mfhi3(); \ + tsk->thread.dsp.dspr[5] = mflo3(); \ +} while (0) + +#define save_dsp(tsk) \ +do { \ + if (cpu_has_dsp) \ + __save_dsp(tsk); \ +} while (0) + +#define __restore_dsp(tsk) \ +do { \ + mthi1(tsk->thread.dsp.dspr[0]); \ + mtlo1(tsk->thread.dsp.dspr[1]); \ + mthi2(tsk->thread.dsp.dspr[2]); \ + mtlo2(tsk->thread.dsp.dspr[3]); \ + mthi3(tsk->thread.dsp.dspr[4]); \ + mtlo3(tsk->thread.dsp.dspr[5]); \ +} while (0) + +#define restore_dsp(tsk) \ +do { \ + if (cpu_has_dsp) \ + __restore_dsp(tsk); \ +} while (0) + +#define __get_dsp_regs(tsk) \ +({ \ + if (tsk == current) \ + __save_dsp(current); \ + \ + tsk->thread.dsp.dspr; \ +}) + +#endif /* _ASM_DSP_H */ diff --git a/include/asm-mips/elf.h b/include/asm-mips/elf.h index bb031f3cd4db..a4db9ec95665 100644 --- a/include/asm-mips/elf.h +++ b/include/asm-mips/elf.h @@ -193,33 +193,76 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; #ifdef __KERNEL__ +struct mips_abi; + +extern struct mips_abi mips_abi; +extern struct mips_abi mips_abi_32; +extern struct mips_abi mips_abi_n32; + #ifdef CONFIG_32BIT -#define SET_PERSONALITY(ex, ibcs2) \ -do { \ - if (ibcs2) \ - set_personality(PER_SVR4); \ - set_personality(PER_LINUX); \ +#define SET_PERSONALITY(ex, ibcs2) \ +do { \ + if (ibcs2) \ + set_personality(PER_SVR4); \ + set_personality(PER_LINUX); \ + \ + current->thread.abi = &mips_abi; \ } while (0) #endif /* CONFIG_32BIT */ #ifdef CONFIG_64BIT -#define SET_PERSONALITY(ex, ibcs2) \ -do { current->thread.mflags &= ~MF_ABI_MASK; \ - if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \ - if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \ - ((ex).e_flags & EF_MIPS_ABI) == 0) \ - current->thread.mflags |= MF_N32; \ - else \ - current->thread.mflags |= MF_O32; \ - } else \ - current->thread.mflags |= MF_N64; \ - if (ibcs2) \ - set_personality(PER_SVR4); \ - else if (current->personality != PER_LINUX32) \ - set_personality(PER_LINUX); \ +#ifdef CONFIG_MIPS32_N32 +#define __SET_PERSONALITY32_N32() \ + do { \ + current->thread.mflags |= MF_N32; \ + current->thread.abi = &mips_abi_n32; \ + } while (0) +#else +#define __SET_PERSONALITY32_N32() \ + do { } while (0) +#endif + +#ifdef CONFIG_MIPS32_O32 +#define __SET_PERSONALITY32_O32() \ + do { \ + current->thread.mflags |= MF_O32; \ + current->thread.abi = &mips_abi_32; \ + } while (0) +#else +#define __SET_PERSONALITY32_O32() \ + do { } while (0) +#endif + +#ifdef CONFIG_MIPS32_COMPAT +#define __SET_PERSONALITY32(ex) \ +do { \ + if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \ + ((ex).e_flags & EF_MIPS_ABI) == 0) \ + __SET_PERSONALITY32_N32(); \ + else \ + __SET_PERSONALITY32_O32(); \ +} while (0) +#else +#define __SET_PERSONALITY32(ex) do { } while (0) +#endif + +#define SET_PERSONALITY(ex, ibcs2) \ +do { \ + current->thread.mflags &= ~MF_ABI_MASK; \ + if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ + __SET_PERSONALITY32(ex); \ + else { \ + current->thread.mflags |= MF_N64; \ + current->thread.abi = &mips_abi; \ + } \ + \ + if (ibcs2) \ + set_personality(PER_SVR4); \ + else if (current->personality != PER_LINUX32) \ + set_personality(PER_LINUX); \ } while (0) #endif /* CONFIG_64BIT */ diff --git a/include/asm-mips/inst.h b/include/asm-mips/inst.h index df912c2b381f..e0745f4ff624 100644 --- a/include/asm-mips/inst.h +++ b/include/asm-mips/inst.h @@ -62,10 +62,10 @@ enum rt_op { spimi_op, unused_rt_op_0x05, unused_rt_op_0x06, unused_rt_op_0x07, tgei_op, tgeiu_op, tlti_op, tltiu_op, teqi_op, unused_0x0d_rt_op, tnei_op, unused_0x0f_rt_op, - bltzal_op, bgezal_op, bltzall_op, bgezall_op - /* - * The others (0x14 - 0x1f) are unused. - */ + bltzal_op, bgezal_op, bltzall_op, bgezall_op, + rt_op_0x14, rt_op_0x15, rt_op_0x16, rt_op_0x17, + rt_op_0x18, rt_op_0x19, rt_op_0x1a, rt_op_0x1b, + bposge32_op, rt_op_0x1d, rt_op_0x1e, rt_op_0x1f }; /* diff --git a/include/asm-mips/mach-ip22/cpu-feature-overrides.h b/include/asm-mips/mach-ip22/cpu-feature-overrides.h index 3c8896d9b133..a115940bd684 100644 --- a/include/asm-mips/mach-ip22/cpu-feature-overrides.h +++ b/include/asm-mips/mach-ip22/cpu-feature-overrides.h @@ -23,6 +23,8 @@ #define cpu_has_dc_aliases (PAGE_SIZE < 0x4000) #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 + #define cpu_has_nofpuex 0 #define cpu_has_64bits 1 diff --git a/include/asm-mips/mach-ip27/cpu-feature-overrides.h b/include/asm-mips/mach-ip27/cpu-feature-overrides.h index fe96d7358517..4c8a90051fd0 100644 --- a/include/asm-mips/mach-ip27/cpu-feature-overrides.h +++ b/include/asm-mips/mach-ip27/cpu-feature-overrides.h @@ -25,6 +25,7 @@ #define cpu_has_vtag_icache 0 #define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 #define cpu_icache_snoops_remote_store 1 #define cpu_has_nofpuex 0 diff --git a/include/asm-mips/mach-ip32/cpu-feature-overrides.h b/include/asm-mips/mach-ip32/cpu-feature-overrides.h index 04713973c6c3..ab37fc1842ba 100644 --- a/include/asm-mips/mach-ip32/cpu-feature-overrides.h +++ b/include/asm-mips/mach-ip32/cpu-feature-overrides.h @@ -37,5 +37,6 @@ #define cpu_has_ejtag 0 #define cpu_has_vtag_icache 0 #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 #endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */ diff --git a/include/asm-mips/mach-ja/cpu-feature-overrides.h b/include/asm-mips/mach-ja/cpu-feature-overrides.h index ca57e7db98bb..310609c0f4ad 100644 --- a/include/asm-mips/mach-ja/cpu-feature-overrides.h +++ b/include/asm-mips/mach-ja/cpu-feature-overrides.h @@ -25,6 +25,7 @@ #define cpu_has_vtag_icache 0 #define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 #define cpu_icache_snoops_remote_store 0 #define cpu_has_nofpuex 0 diff --git a/include/asm-mips/mach-ocelot3/cpu-feature-overrides.h b/include/asm-mips/mach-ocelot3/cpu-feature-overrides.h index 7473512384bc..1812fc0408d3 100644 --- a/include/asm-mips/mach-ocelot3/cpu-feature-overrides.h +++ b/include/asm-mips/mach-ocelot3/cpu-feature-overrides.h @@ -28,6 +28,7 @@ #define cpu_has_vtag_icache 0 #define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 #define cpu_icache_snoops_remote_store 0 #define cpu_has_nofpuex 0 diff --git a/include/asm-mips/mach-rm200/cpu-feature-overrides.h b/include/asm-mips/mach-rm200/cpu-feature-overrides.h index f48736032b2a..9b2a40524679 100644 --- a/include/asm-mips/mach-rm200/cpu-feature-overrides.h +++ b/include/asm-mips/mach-rm200/cpu-feature-overrides.h @@ -31,6 +31,7 @@ #define cpu_has_vtag_icache 0 #define cpu_has_dc_aliases (PAGE_SIZE < 0x4000) #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 #define cpu_has_nofpuex 0 #define cpu_has_64bits 1 diff --git a/include/asm-mips/mach-sibyte/cpu-feature-overrides.h b/include/asm-mips/mach-sibyte/cpu-feature-overrides.h index a3a2cc6014b2..193a666cd131 100644 --- a/include/asm-mips/mach-sibyte/cpu-feature-overrides.h +++ b/include/asm-mips/mach-sibyte/cpu-feature-overrides.h @@ -25,6 +25,7 @@ #define cpu_has_vtag_icache 1 #define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 #define cpu_icache_snoops_remote_store 0 #define cpu_has_nofpuex 0 diff --git a/include/asm-mips/mach-yosemite/cpu-feature-overrides.h b/include/asm-mips/mach-yosemite/cpu-feature-overrides.h index 58603e3daca6..63e94342e087 100644 --- a/include/asm-mips/mach-yosemite/cpu-feature-overrides.h +++ b/include/asm-mips/mach-yosemite/cpu-feature-overrides.h @@ -25,6 +25,7 @@ #define cpu_has_vtag_icache 0 #define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 #define cpu_icache_snoops_remote_store 0 #define cpu_has_nofpuex 0 diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h index 9b0ce451286e..1fad6ec1daa0 100644 --- a/include/asm-mips/mipsregs.h +++ b/include/asm-mips/mipsregs.h @@ -281,6 +281,11 @@ #define ST0_DL (_ULCAST_(1) << 24) /* + * Enable the MIPS DSP ASE + */ +#define ST0_MX 0x01000000 + +/* * Bitfields in the TX39 family CP0 Configuration Register 3 */ #define TX39_CONF_ICS_SHIFT 19 @@ -510,6 +515,7 @@ #define MIPS_CONF3_VINT (_ULCAST_(1) << 5) #define MIPS_CONF3_VEIC (_ULCAST_(1) << 6) #define MIPS_CONF3_LPA (_ULCAST_(1) << 7) +#define MIPS_CONF3_DSP (_ULCAST_(1) << 10) /* * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register. @@ -986,6 +992,287 @@ do { \ : "=r" (__res)); \ __res;}) +#define rddsp(mask) \ +({ \ + unsigned int __res; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # rddsp $1, %x1 \n" \ + " .word 0x7c000cb8 | (%x1 << 16) \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__res) \ + : "i" (mask)); \ + __res; \ +}) + +#define wrdsp(val, mask) \ +do { \ + unsigned int __res; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # wrdsp $1, %x1 \n" \ + " .word 0x7c2004f8 | (%x1 << 15) \n" \ + " .set pop \n" \ + : \ + : "r" (val), "i" (mask)); \ + __res; \ +} while (0) + +#if 0 /* Need DSP ASE capable assembler ... */ +#define mflo0() ({ long mflo0; __asm__("mflo %0, $ac0" : "=r" (mflo0)); mflo0;}) +#define mflo1() ({ long mflo1; __asm__("mflo %0, $ac1" : "=r" (mflo1)); mflo1;}) +#define mflo2() ({ long mflo2; __asm__("mflo %0, $ac2" : "=r" (mflo2)); mflo2;}) +#define mflo3() ({ long mflo3; __asm__("mflo %0, $ac3" : "=r" (mflo3)); mflo3;}) + +#define mfhi0() ({ long mfhi0; __asm__("mfhi %0, $ac0" : "=r" (mfhi0)); mfhi0;}) +#define mfhi1() ({ long mfhi1; __asm__("mfhi %0, $ac1" : "=r" (mfhi1)); mfhi1;}) +#define mfhi2() ({ long mfhi2; __asm__("mfhi %0, $ac2" : "=r" (mfhi2)); mfhi2;}) +#define mfhi3() ({ long mfhi3; __asm__("mfhi %0, $ac3" : "=r" (mfhi3)); mfhi3;}) + +#define mtlo0(x) __asm__("mtlo %0, $ac0" ::"r" (x)) +#define mtlo1(x) __asm__("mtlo %0, $ac1" ::"r" (x)) +#define mtlo2(x) __asm__("mtlo %0, $ac2" ::"r" (x)) +#define mtlo3(x) __asm__("mtlo %0, $ac3" ::"r" (x)) + +#define mthi0(x) __asm__("mthi %0, $ac0" ::"r" (x)) +#define mthi1(x) __asm__("mthi %0, $ac1" ::"r" (x)) +#define mthi2(x) __asm__("mthi %0, $ac2" ::"r" (x)) +#define mthi3(x) __asm__("mthi %0, $ac3" ::"r" (x)) + +#else + +#define mfhi0() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mfhi %0, $ac0 \n" \ + " .word 0x00000810 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mfhi1() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mfhi %0, $ac1 \n" \ + " .word 0x00200810 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mfhi2() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mfhi %0, $ac2 \n" \ + " .word 0x00400810 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mfhi3() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mfhi %0, $ac3 \n" \ + " .word 0x00600810 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mflo0() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mflo %0, $ac0 \n" \ + " .word 0x00000812 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mflo1() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mflo %0, $ac1 \n" \ + " .word 0x00200812 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mflo2() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mflo %0, $ac2 \n" \ + " .word 0x00400812 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mflo3() \ +({ \ + unsigned long __treg; \ + \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " # mflo %0, $ac3 \n" \ + " .word 0x00600812 \n" \ + " move %0, $1 \n" \ + " .set pop \n" \ + : "=r" (__treg)); \ + __treg; \ +}) + +#define mthi0(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mthi $1, $ac0 \n" \ + " .word 0x00200011 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#define mthi1(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mthi $1, $ac1 \n" \ + " .word 0x00200811 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#define mthi2(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mthi $1, $ac2 \n" \ + " .word 0x00201011 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#define mthi3(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mthi $1, $ac3 \n" \ + " .word 0x00201811 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#define mtlo0(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mtlo $1, $ac0 \n" \ + " .word 0x00200013 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#define mtlo1(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mtlo $1, $ac1 \n" \ + " .word 0x00200813 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#define mtlo2(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mtlo $1, $ac2 \n" \ + " .word 0x00201013 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#define mtlo3(x) \ +do { \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noat \n" \ + " move $1, %0 \n" \ + " # mtlo $1, $ac3 \n" \ + " .word 0x00201813 \n" \ + " .set pop \n" \ + : \ + : "r" (x)); \ +} while (0) + +#endif + /* * TLB operations. * diff --git a/include/asm-mips/processor.h b/include/asm-mips/processor.h index d6466aa09fb7..f1980c6c3bcc 100644 --- a/include/asm-mips/processor.h +++ b/include/asm-mips/processor.h @@ -96,12 +96,26 @@ union mips_fpu_union { {{0,},} \ } +#define NUM_DSP_REGS 6 + +typedef __u32 dspreg_t; + +struct mips_dsp_state { + dspreg_t dspr[NUM_DSP_REGS]; + unsigned int dspcontrol; + unsigned short used_dsp; +}; + +#define INIT_DSP {{0,},} + typedef struct { unsigned long seg; } mm_segment_t; #define ARCH_MIN_TASKALIGN 8 +struct mips_abi; + /* * If you change thread_struct remember to change the #defines below too! */ @@ -117,6 +131,9 @@ struct thread_struct { /* Saved fpu/fpu emulator stuff. */ union mips_fpu_union fpu; + /* Saved state of the DSP ASE, if available. */ + struct mips_dsp_state dsp; + /* Other stuff associated with the thread. */ unsigned long cp0_badvaddr; /* Last user fault */ unsigned long cp0_baduaddr; /* Last kernel fault accessing USEG */ @@ -129,6 +146,7 @@ struct thread_struct { unsigned long mflags; unsigned long irix_trampoline; /* Wheee... */ unsigned long irix_oldctx; + struct mips_abi *abi; }; #define MF_ABI_MASK (MF_32BIT_REGS | MF_32BIT_ADDR) @@ -151,6 +169,10 @@ struct thread_struct { */ \ INIT_FPU, \ /* \ + * saved dsp/dsp emulator stuff \ + */ \ + INIT_DSP, \ + /* \ * Other stuff associated with the process \ */ \ 0, 0, 0, 0, \ diff --git a/include/asm-mips/ptrace.h b/include/asm-mips/ptrace.h index 2b5c624c3d4f..8441a5ae96e3 100644 --- a/include/asm-mips/ptrace.h +++ b/include/asm-mips/ptrace.h @@ -22,6 +22,8 @@ #define MMLO 68 #define FPC_CSR 69 #define FPC_EIR 70 +#define DSP_BASE 71 /* 3 more hi / lo register pairs */ +#define DSP_CONTROL 77 /* * This struct defines the way the registers are stored on the stack during a @@ -38,8 +40,8 @@ struct pt_regs { /* Saved special registers. */ unsigned long cp0_status; - unsigned long lo; unsigned long hi; + unsigned long lo; unsigned long cp0_badvaddr; unsigned long cp0_cause; unsigned long cp0_epc; diff --git a/include/asm-mips/sigcontext.h b/include/asm-mips/sigcontext.h index f7fbebaa0744..8edabb0be23f 100644 --- a/include/asm-mips/sigcontext.h +++ b/include/asm-mips/sigcontext.h @@ -27,14 +27,15 @@ struct sigcontext { unsigned int sc_fpc_csr; unsigned int sc_fpc_eir; /* Unused */ unsigned int sc_used_math; - unsigned int sc_ssflags; /* Unused */ + unsigned int sc_dsp; /* dsp status, was sc_ssflags */ unsigned long long sc_mdhi; unsigned long long sc_mdlo; - - unsigned int sc_cause; /* Unused */ - unsigned int sc_badvaddr; /* Unused */ - - unsigned long sc_sigset[4]; /* kernel's sigset_t */ + unsigned long sc_hi1; /* Was sc_cause */ + unsigned long sc_lo1; /* Was sc_badvaddr */ + unsigned long sc_hi2; /* Was sc_sigset[4] */ + unsigned long sc_lo2; + unsigned long sc_hi3; + unsigned long sc_lo3; }; #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ @@ -48,19 +49,19 @@ struct sigcontext { * Warning: this structure illdefined with sc_badvaddr being just an unsigned * int so it was changed to unsigned long in 2.6.0-test1. This may break * binary compatibility - no prisoners. + * DSP ASE in 2.6.12-rc4. Turn sc_mdhi and sc_mdlo into an array of four + * entries, add sc_dsp and sc_reserved for padding. No prisoners. */ struct sigcontext { unsigned long sc_regs[32]; unsigned long sc_fpregs[32]; - unsigned long sc_mdhi; - unsigned long sc_mdlo; + unsigned long sc_hi[4]; + unsigned long sc_lo[4]; unsigned long sc_pc; - unsigned long sc_badvaddr; - unsigned int sc_status; unsigned int sc_fpc_csr; - unsigned int sc_fpc_eir; unsigned int sc_used_math; - unsigned int sc_cause; + unsigned int sc_dsp; + unsigned int sc_reserved; }; #ifdef __KERNEL__ @@ -68,23 +69,24 @@ struct sigcontext { #include <linux/posix_types.h> struct sigcontext32 { - __u32 sc_regmask; /* Unused */ - __u32 sc_status; - __u64 sc_pc; - __u64 sc_regs[32]; - __u64 sc_fpregs[32]; - __u32 sc_ownedfp; /* Unused */ - __u32 sc_fpc_csr; - __u32 sc_fpc_eir; /* Unused */ - __u32 sc_used_math; - __u32 sc_ssflags; /* Unused */ - __u64 sc_mdhi; - __u64 sc_mdlo; - - __u32 sc_cause; /* Unused */ - __u32 sc_badvaddr; /* Unused */ - - __u32 sc_sigset[4]; /* kernel's sigset_t */ + __u32 sc_regmask; /* Unused */ + __u32 sc_status; + __u64 sc_pc; + __u64 sc_regs[32]; + __u64 sc_fpregs[32]; + __u32 sc_ownedfp; /* Unused */ + __u32 sc_fpc_csr; + __u32 sc_fpc_eir; /* Unused */ + __u32 sc_used_math; + __u32 sc_dsp; /* dsp status, was sc_ssflags */ + __u64 sc_mdhi; + __u64 sc_mdlo; + __u32 sc_hi1; /* Was sc_cause */ + __u32 sc_lo1; /* Was sc_badvaddr */ + __u32 sc_hi2; /* Was sc_sigset[4] */ + __u32 sc_lo2; + __u32 sc_hi3; + __u32 sc_lo3; }; #endif /* __KERNEL__ */ diff --git a/include/asm-mips/signal.h b/include/asm-mips/signal.h index f2c470f1d369..8ca539e80d87 100644 --- a/include/asm-mips/signal.h +++ b/include/asm-mips/signal.h @@ -98,12 +98,39 @@ typedef unsigned long old_sigset_t; /* at least 32 bits */ #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192 +#ifdef __KERNEL__ + +/* + * These values of sa_flags are used only by the kernel as part of the + * irq handling routines. + * + * SA_INTERRUPT is also used by the irq handling routines. + * SA_SHIRQ flag is for shared interrupt support on PCI and EISA. + */ +#define SA_SAMPLE_RANDOM SA_RESTART + +#ifdef CONFIG_TRAD_SIGNALS +#define sig_uses_siginfo(ka) ((ka)->sa.sa_flags & SA_SIGINFO) +#else +#define sig_uses_siginfo(ka) (1) +#endif + +#endif /* __KERNEL__ */ + #define SIG_BLOCK 1 /* for blocking signals */ #define SIG_UNBLOCK 2 /* for unblocking signals */ #define SIG_SETMASK 3 /* for setting the signal mask */ #define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: set only the low 32 bit of the sigset. */ -#include <asm-generic/signal.h> + +/* Type of a signal handler. */ +typedef void __signalfn_t(int); +typedef __signalfn_t __user *__sighandler_t; + +/* Fake signal functions */ +#define SIG_DFL ((__sighandler_t)0) /* default signal handling */ +#define SIG_IGN ((__sighandler_t)1) /* ignore signal */ +#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ struct sigaction { unsigned int sa_flags; diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h index 6663efd49b27..cd3a6bca7abd 100644 --- a/include/asm-mips/system.h +++ b/include/asm-mips/system.h @@ -17,6 +17,7 @@ #include <asm/addrspace.h> #include <asm/cpu-features.h> +#include <asm/dsp.h> #include <asm/ptrace.h> #include <asm/war.h> #include <asm/interrupt.h> @@ -154,9 +155,13 @@ extern asmlinkage void *resume(void *last, void *next, void *next_ti); struct task_struct; -#define switch_to(prev,next,last) \ -do { \ - (last) = resume(prev, next, next->thread_info); \ +#define switch_to(prev,next,last) \ +do { \ + if (cpu_has_dsp) \ + __save_dsp(prev); \ + (last) = resume(prev, next, next->thread_info); \ + if (cpu_has_dsp) \ + __restore_dsp(current); \ } while(0) #define ROT_IN_PIECES \ |
