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9b26616c8d
kernel_optimize_test/arch/mips
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Maciej W. Rozycki 9b26616c8d MIPS: Respect the ISA level in FCSR handling 
Define the central place the default FCSR value is set from, initialised
in `cpu_probe'.  Determine the FCSR mask applied to values written to
the register with CTC1 in the full emulation mode and via ptrace(2),
according to the ISA level of processor hardware or the writability of
bits 31:18 if actual FPU hardware is used.

Software may rely on FCSR bits whose functions our emulator does not
implement, so it should not allow them to be set or software may get
confused.  For ptrace(2) it's just sanity.

[ralf@linux-mips.org: Fixed double inclusion of <asm/current.h>.]

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9711/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-08 01:10:37 +02:00
..
alchemy Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-02-21 19:41:38 -08:00
ar7 MIPS: AR7: Replace mac address parsing 2015-04-02 13:54:22 +02:00
ath25 MIPS: ath25: add Wireless device support 2014-11-24 07:45:29 +01:00
ath79 MIPS: ath79: Increase max memory limit to 256MByte 2015-04-01 17:21:57 +02:00
bcm47xx MIPS: BCM47xx: Move filling most of SPROM to the generic function 2015-04-02 14:00:13 +02:00
bcm63xx MIPS: Remove useless parentheses 2014-11-24 07:44:49 +01:00
bmips MIPS: BMIPS: restrict DTB selection to BMIPS_GENERIC 2015-04-01 17:22:04 +02:00
boot MIPS: Reduce kernel image size for !CONFIG_DEBUG_ZBOOT 2015-04-02 13:54:25 +02:00
cavium-octeon MIPS: Octeon: Make octeon-md5 driver endian-agnostic 2015-04-01 17:22:15 +02:00
cobalt
configs MIPS: XPA: Add new configuration file. 2015-04-01 17:21:45 +02:00
dec
emma
fw MIPS: ARC: Use __noreturn / unreachable in ARC termination functions. 2015-01-13 16:04:27 +01:00
include MIPS: Respect the ISA level in FCSR handling 2015-04-08 01:10:37 +02:00
jazz
jz4740 MIPS: jz4740: Implement read_sched_clock 2015-04-01 17:21:31 +02:00
kernel MIPS: Respect the ISA level in FCSR handling 2015-04-08 01:10:37 +02:00
kvm KVM: MIPS: Enable after disabling interrupt 2015-03-02 19:18:12 -03:00
lantiq MIPS: mark prom_free_prom_memory() everywhere with __init 2015-04-01 17:21:58 +02:00
lasat MIPS: Lasat: Remove unused function from sysctl code. 2015-04-02 13:54:22 +02:00
lib MIPS: csum_partial: Improve instruction parallelism. 2015-04-01 17:22:11 +02:00
loongson MIPS: Respect the ISA level in FCSR handling 2015-04-08 01:10:37 +02:00
loongson1 MIPS: Loongson1B: Add a clockevent/clocksource using PWM Timer 2014-11-24 07:45:09 +01:00
math-emu MIPS: Respect the ISA level in FCSR handling 2015-04-08 01:10:37 +02:00
mm MIPS: c-r4k.c: Fix the 74K D-cache alias erratum workaround 2015-04-02 13:54:18 +02:00
mti-malta MIPS: Malta: malta-time: Ensure GIC counter is running 2015-03-31 12:04:13 +02:00
mti-sead3 MIPS: SEAD3: Combine all platform device registrations in one file. 2015-04-02 17:07:26 +02:00
net module: remove mod arg from module_free, rename module_memfree(). 2015-01-20 11:38:33 +10:30
netlogic MIPS: Netlogic: Add built-in dts for XLP5xx boards 2015-04-01 17:21:54 +02:00
oprofile MIPS: Add R16000 detection 2015-04-01 17:22:13 +02:00
paravirt
pci MIPS: PCI: Add a hook for IORESOURCE_BUS in pci_controller/bridge_controller 2015-04-01 17:22:16 +02:00
pistachio MIPS: Add support for the IMG Pistachio SoC 2015-03-31 12:04:12 +02:00
pmcs-msp71xx kconfig: use bool instead of boolean for type definition attributes 2015-01-07 13:08:04 +01:00
pnx833x
power MIPS: Hibernate: Restructure files and functions 2015-04-01 17:22:09 +02:00
ralink Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
rb532 MIPS: Replace use of phys_t with phys_addr_t. 2014-11-24 22:47:31 +01:00
sgi-ip22 MIPS: ip22-gio: Remove legacy suspend/resume support 2015-02-20 13:30:55 +01:00
sgi-ip27 MIPS: sgi-ip27: Implement read_sched_clock 2015-04-01 17:21:29 +02:00
sgi-ip32 MIPS: IP32: ip32-platform is not a module. 2015-04-01 17:22:13 +02:00
sibyte MIPS: Replace use of phys_t with phys_addr_t. 2014-11-24 22:47:31 +01:00
sni
txx9 Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
vr41xx
Kbuild
Kbuild.platforms MIPS: bcm3384: Rename "bcm3384" target to "bmips" 2015-04-01 17:21:35 +02:00
Kconfig MIPS: perf: Add hardware perf events support for Loongson-3 2015-04-01 17:22:17 +02:00
Kconfig.debug MIPS: kernel: elf: Improve the overall ABI and FPU mode checks 2015-02-17 15:37:39 +00:00
Makefile MIPS: Add dtbs_install target 2015-04-01 17:21:34 +02:00