iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/arch/mips/kernel/r2300_fpu.S

131 lines
2.8 KiB
ArmAsm
Raw Normal View History

Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
/*
* 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) 1996, 1998 by Ralf Baechle
*
* Multi-arch abstraction and asm macros for easier reading:
update David Miller's old email address Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-04-04 14:15:29 -07:00
* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
*
* Further modifications to make this work:
* Copyright (c) 1998 Harald Koerfgen
*/
#include <asm/asm.h>
MIPS: Move r2300 FP code from r2300_switch.S to r2300_fpu.S Move _save_fp(), _restore_fp() & _init_fpu() out of r2300_switch.S & into r2300_fpu.S. This logically places all FP-related asm code into r2300_fpu.S & provides consistency with R4K after the preceding commit. Besides cleaning up this will be useful for later patches which disable FP support. [ralf@linux-mips.org: Fixed build issues reported by Arnd Bergmann <arnd@arndb.de>] Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16238/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-06-05 11:21:29 -07:00
#include <asm/asmmacro.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
#include <asm/errno.h>
MIPS: Move r2300 FP code from r2300_switch.S to r2300_fpu.S Move _save_fp(), _restore_fp() & _init_fpu() out of r2300_switch.S & into r2300_fpu.S. This logically places all FP-related asm code into r2300_fpu.S & provides consistency with R4K after the preceding commit. Besides cleaning up this will be useful for later patches which disable FP support. [ralf@linux-mips.org: Fixed build issues reported by Arnd Bergmann <arnd@arndb.de>] Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16238/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-06-05 11:21:29 -07:00
#include <asm/export.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
kbuild: mips use generic asm-offsets.h support Removed obsolete stuff from arch makefile. mips had a special rule for generating asm-offsets.h so preserved it using an architecture specific hook in top-level Kbuild file. Renamed .h file to asm-offsets.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-09 22:32:31 +02:00
#include <asm/asm-offsets.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
#include <asm/regdef.h>
#define EX(a,b) \
9: a,##b; \
.section __ex_table,"a"; \
MIPS: Fix ISA I FP sigcontext access violation handling Complement commit 0ae8dceaebe3 ("Merge with 2.3.10.") and use the local `fault' handler to recover from FP sigcontext access violation faults, like corresponding code does in r4k_fpu.S. The `bad_stack' handler is in syscall.c and is not suitable here as we want to propagate the error condition up through the caller rather than killing the thread outright. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14474/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:25:44 +00:00
PTR 9b,fault; \
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
.previous
MIPS: Correct MIPS I FP sigcontext layout Complement commit 80cbfad79096 ("MIPS: Correct MIPS I FP context layout") and correct the way Floating Point General registers are stored in a signal context with MIPS I hardware. Use the S.D and L.D assembly macros to have pairs of SWC1 instructions and pairs of LWC1 instructions produced, respectively, in an arrangement which makes the memory representation of floating-point data passed compatible with that used by hardware SDC1 and LDC1 instructions, where available, regardless of the hardware endianness used. This matches the layout used by r4k_fpu.S, ensuring run-time compatibility for MIPS I software across all o32 hardware platforms. Define an EX2 macro to handle exceptions from both hardware instructions implicitly produced from S.D and L.D assembly macros. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14477/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:40 +00:00
#define EX2(a,b) \
9: a,##b; \
.section __ex_table,"a"; \
PTR 9b,bad_stack; \
PTR 9b+4,bad_stack; \
.previous
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
.set mips1
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
MIPS: Move r2300 FP code from r2300_switch.S to r2300_fpu.S Move _save_fp(), _restore_fp() & _init_fpu() out of r2300_switch.S & into r2300_fpu.S. This logically places all FP-related asm code into r2300_fpu.S & provides consistency with R4K after the preceding commit. Besides cleaning up this will be useful for later patches which disable FP support. [ralf@linux-mips.org: Fixed build issues reported by Arnd Bergmann <arnd@arndb.de>] Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16238/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-06-05 11:21:29 -07:00
/*
* Save a thread's fp context.
*/
LEAF(_save_fp)
EXPORT_SYMBOL(_save_fp)
fpu_save_single a0, t1 # clobbers t1
jr ra
END(_save_fp)
/*
* Restore a thread's fp context.
*/
LEAF(_restore_fp)
fpu_restore_single a0, t1 # clobbers t1
jr ra
END(_restore_fp)
.set noreorder
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
/**
* _save_fp_context() - save FP context from the FPU
* @a0 - pointer to fpregs field of sigcontext
* @a1 - pointer to fpc_csr field of sigcontext
*
* Save FP context, including the 32 FP data registers and the FP
* control & status register, from the FPU to signal context.
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
LEAF(_save_fp_context)
MIPS: Fix build with binutils 2.24.51+ Starting with version 2.24.51.20140728 MIPS binutils complain loudly about mixing soft-float and hard-float object files, leading to this build failure since GCC is invoked with "-msoft-float" on MIPS: {standard input}: Warning: .gnu_attribute 4,3 requires `softfloat' LD arch/mips/alchemy/common/built-in.o mipsel-softfloat-linux-gnu-ld: Warning: arch/mips/alchemy/common/built-in.o uses -msoft-float (set by arch/mips/alchemy/common/prom.o), arch/mips/alchemy/common/sleeper.o uses -mhard-float To fix this, we detect if GAS is new enough to support "-msoft-float" command option, and if it does, we can let GCC pass it to GAS; but then we also need to sprinkle the files which make use of floating point registers with the necessary ".set hardfloat" directives. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: Matthew Fortune <Matthew.Fortune@imgtec.com> Cc: Markos Chandras <Markos.Chandras@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/8355/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-07 14:13:54 +01:00
.set push
SET_HARDFLOAT
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
li v0, 0 # assume success
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
cfc1 t1, fcr31
MIPS: Correct MIPS I FP sigcontext layout Complement commit 80cbfad79096 ("MIPS: Correct MIPS I FP context layout") and correct the way Floating Point General registers are stored in a signal context with MIPS I hardware. Use the S.D and L.D assembly macros to have pairs of SWC1 instructions and pairs of LWC1 instructions produced, respectively, in an arrangement which makes the memory representation of floating-point data passed compatible with that used by hardware SDC1 and LDC1 instructions, where available, regardless of the hardware endianness used. This matches the layout used by r4k_fpu.S, ensuring run-time compatibility for MIPS I software across all o32 hardware platforms. Define an EX2 macro to handle exceptions from both hardware instructions implicitly produced from S.D and L.D assembly macros. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14477/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:40 +00:00
EX2(s.d $f0, 0(a0))
EX2(s.d $f2, 16(a0))
EX2(s.d $f4, 32(a0))
EX2(s.d $f6, 48(a0))
EX2(s.d $f8, 64(a0))
EX2(s.d $f10, 80(a0))
EX2(s.d $f12, 96(a0))
EX2(s.d $f14, 112(a0))
EX2(s.d $f16, 128(a0))
EX2(s.d $f18, 144(a0))
EX2(s.d $f20, 160(a0))
EX2(s.d $f22, 176(a0))
EX2(s.d $f24, 192(a0))
EX2(s.d $f26, 208(a0))
EX2(s.d $f28, 224(a0))
EX2(s.d $f30, 240(a0))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
jr ra
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
EX(sw t1, (a1))
MIPS: Fix build with binutils 2.24.51+ Starting with version 2.24.51.20140728 MIPS binutils complain loudly about mixing soft-float and hard-float object files, leading to this build failure since GCC is invoked with "-msoft-float" on MIPS: {standard input}: Warning: .gnu_attribute 4,3 requires `softfloat' LD arch/mips/alchemy/common/built-in.o mipsel-softfloat-linux-gnu-ld: Warning: arch/mips/alchemy/common/built-in.o uses -msoft-float (set by arch/mips/alchemy/common/prom.o), arch/mips/alchemy/common/sleeper.o uses -mhard-float To fix this, we detect if GAS is new enough to support "-msoft-float" command option, and if it does, we can let GCC pass it to GAS; but then we also need to sprinkle the files which make use of floating point registers with the necessary ".set hardfloat" directives. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: Matthew Fortune <Matthew.Fortune@imgtec.com> Cc: Markos Chandras <Markos.Chandras@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/8355/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-07 14:13:54 +01:00
.set pop
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
END(_save_fp_context)
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
/**
* _restore_fp_context() - restore FP context to the FPU
* @a0 - pointer to fpregs field of sigcontext
* @a1 - pointer to fpc_csr field of sigcontext
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
*
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
* Restore FP context, including the 32 FP data registers and the FP
* control & status register, from signal context to the FPU.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
*/
LEAF(_restore_fp_context)
MIPS: Fix build with binutils 2.24.51+ Starting with version 2.24.51.20140728 MIPS binutils complain loudly about mixing soft-float and hard-float object files, leading to this build failure since GCC is invoked with "-msoft-float" on MIPS: {standard input}: Warning: .gnu_attribute 4,3 requires `softfloat' LD arch/mips/alchemy/common/built-in.o mipsel-softfloat-linux-gnu-ld: Warning: arch/mips/alchemy/common/built-in.o uses -msoft-float (set by arch/mips/alchemy/common/prom.o), arch/mips/alchemy/common/sleeper.o uses -mhard-float To fix this, we detect if GAS is new enough to support "-msoft-float" command option, and if it does, we can let GCC pass it to GAS; but then we also need to sprinkle the files which make use of floating point registers with the necessary ".set hardfloat" directives. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: Matthew Fortune <Matthew.Fortune@imgtec.com> Cc: Markos Chandras <Markos.Chandras@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/8355/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-07 14:13:54 +01:00
.set push
SET_HARDFLOAT
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
li v0, 0 # assume success
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
EX(lw t0, (a1))
MIPS: Correct MIPS I FP sigcontext layout Complement commit 80cbfad79096 ("MIPS: Correct MIPS I FP context layout") and correct the way Floating Point General registers are stored in a signal context with MIPS I hardware. Use the S.D and L.D assembly macros to have pairs of SWC1 instructions and pairs of LWC1 instructions produced, respectively, in an arrangement which makes the memory representation of floating-point data passed compatible with that used by hardware SDC1 and LDC1 instructions, where available, regardless of the hardware endianness used. This matches the layout used by r4k_fpu.S, ensuring run-time compatibility for MIPS I software across all o32 hardware platforms. Define an EX2 macro to handle exceptions from both hardware instructions implicitly produced from S.D and L.D assembly macros. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14477/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:40 +00:00
EX2(l.d $f0, 0(a0))
EX2(l.d $f2, 16(a0))
EX2(l.d $f4, 32(a0))
EX2(l.d $f6, 48(a0))
EX2(l.d $f8, 64(a0))
EX2(l.d $f10, 80(a0))
EX2(l.d $f12, 96(a0))
EX2(l.d $f14, 112(a0))
EX2(l.d $f16, 128(a0))
EX2(l.d $f18, 144(a0))
EX2(l.d $f20, 160(a0))
EX2(l.d $f22, 176(a0))
EX2(l.d $f24, 192(a0))
EX2(l.d $f26, 208(a0))
EX2(l.d $f28, 224(a0))
EX2(l.d $f30, 240(a0))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
jr ra
MIPS: Fix ISA I/II FP signal context offsets Fix a regression introduced with commit 2db9ca0a3551 ("MIPS: Use struct mips_abi offsets to save FP context") for MIPS I/I FP signal contexts, by converting save/restore code to the updated internal API. Start FGR offsets from 0 rather than SC_FPREGS from $a0 and use $a1 rather than the offset of SC_FPC_CSR from $a0 for the Floating Point Control/Status Register (FCSR). Document the new internal API and adjust assembly code formatting for consistency. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14476/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-31 16:27:01 +00:00
ctc1 t0, fcr31
MIPS: Fix build with binutils 2.24.51+ Starting with version 2.24.51.20140728 MIPS binutils complain loudly about mixing soft-float and hard-float object files, leading to this build failure since GCC is invoked with "-msoft-float" on MIPS: {standard input}: Warning: .gnu_attribute 4,3 requires `softfloat' LD arch/mips/alchemy/common/built-in.o mipsel-softfloat-linux-gnu-ld: Warning: arch/mips/alchemy/common/built-in.o uses -msoft-float (set by arch/mips/alchemy/common/prom.o), arch/mips/alchemy/common/sleeper.o uses -mhard-float To fix this, we detect if GAS is new enough to support "-msoft-float" command option, and if it does, we can let GCC pass it to GAS; but then we also need to sprinkle the files which make use of floating point registers with the necessary ".set hardfloat" directives. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: Matthew Fortune <Matthew.Fortune@imgtec.com> Cc: Markos Chandras <Markos.Chandras@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/8355/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-07 14:13:54 +01:00
.set pop
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
END(_restore_fp_context)
.set reorder
MIPS: Avoid variant of .type unsupported by LLVM Assembler The target independent parts of the LLVM Lexer considers 'fault@function' to be a single token representing the 'fault' symbol with a 'function' modifier. However, this is not the case in the .type directive where 'function' refers to STT_FUNC from the ELF standard. Although GAS accepts it, '.type symbol@function' is an undocumented form of this directive. The documentation specifies a comma between the symbol and '@function'. Signed-off-by: Scott Egerton <Scott.Egerton@imgtec.com> Signed-off-by: Daniel Sanders <daniel.sanders@imgtec.com> Reviewed-by: Maciej W. Rozycki <macro@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/12587/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-02-23 10:29:20 +00:00
.type fault, @function
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
.ent fault
fault: li v0, -EFAULT
jr ra
.end fault
Reference in New Issue Copy Permalink