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Maciej W. Rozycki f92722dc45 MIPS: Correct MIPS I FP sigcontext layout 
Complement commit 80cbfad790 ("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>
2016-11-04 01:39:23 +01:00
..
alchemy MIPS: Sanitise coherentio semantics 2016-10-06 18:01:28 +02:00
ar7 MIPS: ar7: use gpiochip data pointer 2016-02-19 09:51:43 +01:00
ath25 genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
ath79 MIPS: ath79: Fix test for error return of clk_register_fixed_factor(). 2016-09-13 14:13:26 +02:00
bcm47xx MIPS: BCM47xx: Make serial explicitly non-modular 2016-10-04 16:13:57 +02:00
bcm63xx MIPS: BCM63xx: Let clk_disable() return immediately if clk is NULL 2016-10-04 16:13:57 +02:00
bmips MIPS: BMIPS: Support APPENDED_DTB 2016-10-06 17:31:02 +02:00
boot MIPS: Malta: Fixup reboot 2016-11-04 00:27:27 +01:00
cavium-octeon Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-10-15 09:26:12 -07:00
cobalt MIPS: Cobalt: Fix typo 2016-08-03 08:16:30 +02:00
configs MIPS: generic: Convert SEAD-3 to a generic board 2016-10-06 18:04:20 +02:00
dec MIPS: DEC: Avoid la pseudo-instruction in delay slots 2016-09-29 18:59:49 +02:00
emma
fw MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
generic MIPS: generic: Fix KASLR for generic kernel. 2016-11-04 00:32:06 +01:00
include MIPS: Fix FCSR Cause bit handling for correct SIGFPE issue 2016-11-04 01:28:41 +01:00
jazz MIPS: Jazz: Migrate to new 'set-state' interface 2015-09-03 12:07:50 +02:00
jz4740 tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
kernel MIPS: Correct MIPS I FP sigcontext layout 2016-11-04 01:39:23 +01:00
kvm KVM: MIPS: Add missing uaccess.h include 2016-10-19 00:37:05 +01:00
lantiq MIPS: Lantiq: Make xrx200_phy_fw explicitly non-modular 2016-10-04 16:13:57 +02:00
lasat mips: separate extable.h, switch module.h to it 2016-10-05 18:36:18 -04:00
lib MIPS: dump_tlb: Fix printk continuations 2016-11-04 01:04:32 +01:00
loongson32 MIPS: Add RTC support for Loongson1C board 2016-10-04 16:13:57 +02:00
loongson64 mips/loongson/smp: Convert to hotplug state machine 2016-09-19 21:44:32 +02:00
math-emu treewide: remove redundant #include <linux/kconfig.h> 2016-10-11 15:06:33 -07:00
mm Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
mti-malta MIPS: Print CM error reports upon bus errors 2016-10-06 18:02:18 +02:00
net treewide: remove redundant #include <linux/kconfig.h> 2016-10-11 15:06:33 -07:00
netlogic dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
oprofile MIPS/Loongson-3: Convert oprofile to hotplug state machine 2016-07-15 10:40:29 +02:00
paravirt MIPS: SMP: Don't increment irq_count multiple times for call function IPIs 2015-08-03 09:25:12 +02:00
pci MIPS: Sanitise coherentio semantics 2016-10-06 18:01:28 +02:00
pic32 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-08-06 09:13:11 -04:00
pistachio Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-08-06 09:13:11 -04:00
pmcs-msp71xx MIPS: MSP71xx: Use __flush_cache_all instead of flush_cache_all. 2016-05-13 14:01:38 +02:00
pnx833x MIPS: Squash lines for simple wrapper functions 2016-10-04 16:13:57 +02:00
power MIPS: Hibernate: flush TLB entries earlier 2015-04-10 15:41:52 +02:00
ralink MIPS: ralink: Make timer explicitly non-modular 2016-10-04 16:13:57 +02:00
rb532 MIPS: rb532: use gpiochip data pointer 2016-02-19 09:51:44 +01:00
sgi-ip22 rtc: ds1286: move header to linux/rtc 2016-07-08 16:23:11 +02:00
sgi-ip27 MIPS: Spelling fix lets -> let's 2016-05-28 12:35:09 +02:00
sgi-ip32 MIPS: IP32: Fix build errors in reset code in DS1685 platform hook. 2015-05-13 00:01:41 +02:00
sibyte MIPS: Sibyte: Fix Kconfig dependencies of SIBYTE_BUS_WATCHER 2016-05-09 12:00:03 +02:00
sni char/genrtc: remove asm-generic/rtc.h from mips 2016-06-04 00:23:36 +02:00
txx9 MIPS: PCI: Reduce stack frame usage 2016-10-04 16:13:57 +02:00
vdso MIPS: VDSO: Drop duplicated -I*/-E* aflags 2016-10-11 15:07:30 +02:00
vr41xx MIPS: VR41xx: Fix typo 2016-05-28 12:35:09 +02:00
xilfpga mips: Remove unnecessary of_platform_populate with default match table 2016-06-23 15:00:29 -05:00
Kbuild MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
Kbuild.platforms MIPS: generic: Convert SEAD-3 to a generic board 2016-10-06 18:04:20 +02:00
Kconfig Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-10-15 09:26:12 -07:00
Kconfig.debug MIPS: Remove compact branch policy Kconfig entries 2016-09-13 14:14:50 +02:00
Makefile MIPS: Fix build of compressed image 2016-11-04 00:37:15 +01:00