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James Hogan bad50d7925 MIPS: Fix VZ probe gas errors with binutils <2.24 
The VZ guest register & TLB access macros introduced in commit "MIPS:
Add guest CP0 accessors" use VZ ASE specific instructions that aren't
understood by versions of binutils prior to 2.24.

Add a check for whether the toolchain supports the -mvirt option,
similar to the MSA toolchain check, and implement the accessors using
.word if not.

Due to difficulty in converting compiler specified registers (e.g. "$3")
to usable numbers (e.g. "3") in inline asm, we need to copy to/from a
temporary register, namely the assembler temporary (at/$1), and specify
guest CP0 registers numerically in the gc0 macros.

Fixes: 7eb9111822 ("MIPS: Add guest CP0 accessors")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-next@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13255/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-17 11:06:04 +02:00
..
alchemy MIPS: alchemy: Remove CLK_IS_ROOT 2016-05-13 15:30:25 +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: Remove CLK_IS_ROOT 2016-05-13 15:30:25 +02:00
bcm47xx MIPS: BCM47xx: Move SPROM driver to drivers/firmware/ 2016-05-13 14:01:43 +02:00
bcm63xx Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel 2016-03-09 17:40:37 +07:00
bmips MIPS: BMIPS: Add support for BCM63268 2016-05-13 14:02:09 +02:00
boot MIPS: JZ4740: Probe OHCI platform device via DT 2016-05-13 19:09:24 +02:00
cavium-octeon MIPS: Octeon: Mark some functions __init in smp.c 2016-05-13 14:02:10 +02:00
cobalt MIPS: Cobalt Don't use module_init in non-modular MTD registration. 2015-06-21 22:14:30 +02:00
configs MIPS: BMIPS: Enable partition parser in defconfig 2016-05-13 14:02:06 +02:00
dec MIPS: DEC: Export `ioasic_ssr_lock' to modules 2016-05-17 11:03:54 +02:00
emma
fw MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
include MIPS: Fix VZ probe gas errors with binutils <2.24 2016-05-17 11:06:04 +02:00
jazz MIPS: Jazz: Migrate to new 'set-state' interface 2015-09-03 12:07:50 +02:00
jz4740 MIPS: JZ4740: Probe OHCI platform device via DT 2016-05-13 19:09:24 +02:00
kernel MIPS: perf: Fix I6400 event numbers 2016-05-17 11:05:07 +02:00
kvm MIPS: Define & use CP0_EBase bit definitions 2016-05-13 15:30:25 +02:00
lantiq MIPS: Change my email address 2016-05-13 14:02:18 +02:00
lasat [mips] switch pvc_proc_cleanup() to remove_proc_subtree() 2015-12-23 10:41:38 -05:00
lib MIPS: Print GuestCtl1 on machine check exception 2016-05-13 15:30:25 +02:00
loongson32 MIPS: Loongson1B: Some updates/fixes for LS1B 2016-05-13 14:02:05 +02:00
loongson64 MIPS: Loongson: Add Loongson-3A R2 basic support 2016-05-13 14:02:14 +02:00
math-emu MIPS: math-emu: Fix jalr emulation when rd == $0 2016-05-13 14:02:24 +02:00
mm MIPS: mm: Panic if an XPA kernel is run without RIXI 2016-05-13 15:30:25 +02:00
mti-malta MIPS: malta-time: Take seconds into account 2016-05-13 15:30:25 +02:00
mti-sead3 MIPS: Introduce plat_get_fdt a platform API to retrieve the FDT 2016-05-13 14:02:03 +02:00
net net: filter: make JITs zero A for SKF_AD_ALU_XOR_X 2016-01-06 00:43:52 -05:00
netlogic MIPS: Define & use CP0_EBase bit definitions 2016-05-13 15:30:25 +02:00
oprofile MIPS: Add perf counter feature 2016-05-13 15:30:25 +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: Add & use CP0_EntryHi ASID definitions 2016-05-13 14:02:18 +02:00
pic32 clk: Get rid of HAVE_MACH_CLKDEV 2016-02-25 14:41:20 -08:00
pistachio MIPS: pistachio: Determine SoC revision during boot 2016-05-13 17:47:47 +02:00
pmcs-msp71xx MIPS: MSP71xx: Use __flush_cache_all instead of flush_cache_all. 2016-05-13 14:01:38 +02:00
pnx833x MIPS: make PCI_DMA_BUS_IS_PHYS=1 constant 2016-05-13 14:02:17 +02:00
power MIPS: Hibernate: flush TLB entries earlier 2015-04-10 15:41:52 +02:00
ralink mips: mt7620: fallback to SDRAM when syscfg0 does not have a valid value for the memory type 2016-05-13 15:39:43 +02:00
rb532 MIPS: rb532: use gpiochip data pointer 2016-02-19 09:51:44 +01:00
sgi-ip22
sgi-ip27 MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +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 MIPS: Fix build error due to unused variables. 2015-12-22 15:21:18 +01:00
txx9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
vdso MIPS: Fix genvdso error on rebuild 2016-05-13 22:47:39 +02:00
vr41xx MIPS: VR41xx: Use __flush_cache_all instead of flush_cache_all. 2016-05-13 14:01:38 +02:00
xilfpga Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
Kbuild MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
Kbuild.platforms MIPS: Add support for PIC32MZDA platform 2016-01-24 02:53:28 +01:00
Kconfig MIPS: BMIPS: BMIPS4380 and BMIPS5000 support RIXI 2016-05-13 15:30:25 +02:00
Kconfig.debug MIPS: CPS: Early debug using an ns16550-compatible UART 2015-11-11 08:34:25 +01:00
Makefile MIPS: Fix VZ probe gas errors with binutils <2.24 2016-05-17 11:06:04 +02:00