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51d943f07d
linux_dsm_epyc7002/arch/mips
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Ralf Baechle 51d943f07d MIPS: Fix for warning from FPU emulation code 
The default implementation of 'cpu_has_fpu' macro calls
smp_processor_id() which causes this warning to be printed when
preemption is enabled:

[    4.664000] Algorithmics/MIPS FPU Emulator v1.5
[    4.676000] BUG: using smp_processor_id() in preemptible [00000000] code: ini
[    4.700000] caller is fpu_emulator_cop1Handler+0x434/0x27b8

This problem got introduced in November 2009 by
af1d2af877ef6c36990671bc86a5b9c5bb50b1da (lmo) [MIPS: Fix emulation of
64-bit FPU on 64-bit CPUs.] rsp.  da0bac3341
(kernel.org) [MIPS: Fix emulation of 64-bit FPU on FPU-less 64-bit CPUs.]
in 2.6.32.

Fixed by rewriting cop1_64bit() to return a constant whenever possible
but most importantly avoid the use pf cpu_has_fpu entirely.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Reported-by: Jayachandran C <jchandra@broadcom.com>
Initial-patch-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: https://patchwork.linux-mips.org/patch/4225/
2012-12-13 18:15:27 +01:00
..
alchemy MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code. 2012-10-11 11:11:20 +02:00
ar7 MIPS: AR7: use part_probe_types to specificy the partition parser to use 2012-12-13 18:15:23 +01:00
ath79 MIPS: ath79: Fix CPU/DDR frequency calculation for SRIF PLLs 2012-10-01 11:37:15 +02:00
bcm47xx MIPS: BCM47xx: Fix BCMA_DRIVER_PCI_HOSTMODE config dependencies 2012-07-19 11:23:43 +02:00
bcm63xx Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-10-09 16:08:04 +09:00
boot MIPS: Alchemy: Single kernel for DB1200/1300/1550 2012-10-11 11:11:20 +02:00
cavium-octeon MIPS/EDAC: Improve OCTEON EDAC support. 2012-12-13 18:15:26 +01:00
cobalt MIPS: Mark cascade and low level interrupts IRQF_NO_THREAD 2011-09-21 17:52:15 +02:00
configs MIPS: Cavium: Update defconfig 2012-12-12 16:52:06 +01:00
dec MIPS: DEC: use IS_ENABLED() 2012-07-23 13:55:54 +01:00
emma Disintegrate asm/system.h for MIPS 2012-03-28 18:30:02 +01:00
fw MIPS: Kconfig: Rename several firmware related config symbols. 2012-12-13 17:02:14 +01:00
include MIPS: Remove unused smvp.h 2012-12-13 18:15:26 +01:00
jazz Merge branch 'next/generic' into mips-for-linux-next 2012-01-11 15:41:47 +01:00
jz4740 MIPS: JZ4740: Forward declare struct uart_port in header. 2012-10-17 17:00:50 +02:00
kernel MIPS: Handle COP3 Unusable exception as COP1X for FP emulation 2012-12-13 18:15:27 +01:00
lantiq MIPS: Lantiq: Fix typo in "endianness" in dma.c 2012-12-13 18:15:23 +01:00
lasat Disintegrate asm/system.h for MIPS 2012-03-28 18:30:02 +01:00
lib MIPS: Fix crash that occurs when function tracing is enabled 2012-11-23 18:44:38 +01:00
loongson MIPS: Loongson 2: Sort out clock managment. 2012-08-01 18:10:06 +02:00
loongson1 MIPS: Loongson 1: more clk support and add select HAVE_CLK 2012-08-01 17:59:23 +02:00
math-emu MIPS: Fix for warning from FPU emulation code 2012-12-13 18:15:27 +01:00
mm MIPS/EDAC: Improve OCTEON EDAC support. 2012-12-13 18:15:26 +01:00
mti-malta MIPS: Malta: Fix interupt number of CBUS UART. 2012-11-13 14:50:15 +01:00
mti-sead3 MIPS: Add core files for MIPS SEAD-3 development platform. 2012-09-13 15:43:46 -05:00
netlogic MIPS: Netlogic: Add support for built in DTB 2012-08-22 23:46:37 +02:00
oprofile Merge branches 'next/generic', 'next/alchemy', 'next/bcm63xx', 'next/cavium', 'next/jz4740', 'next/lantiq', 'next/loongson1b' and 'next/netlogic' into mips-for-linux-next 2012-07-25 16:37:46 +02:00
pci MIPS/EDAC: Improve OCTEON EDAC support. 2012-12-13 18:15:26 +01:00
pmc-sierra PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
pnx833x MIPS: PNX833x: use IS_ENABLED() macro 2012-07-23 13:55:53 +01:00
pnx8550 MIPS: irq: Remove IRQF_DISABLED 2011-12-07 22:03:45 +00:00
power MIPS: Hibernation: Fixes for PAGE_SIZE >= 64kb 2011-05-10 18:15:26 +01:00
powertv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-07-24 10:01:50 -07:00
rb532 - More robust parsing especially of xattr data in JFFS2 2012-06-01 16:55:42 -07:00
sgi-ip22 Disintegrate asm/system.h for MIPS 2012-03-28 18:30:02 +01:00
sgi-ip27 mips: zero out pg_data_t when it's allocated 2012-07-31 18:42:49 -07:00
sgi-ip32 Disintegrate asm/system.h for MIPS 2012-03-28 18:30:02 +01:00
sibyte MIPS: Kconfig: Rename several firmware related config symbols. 2012-12-13 17:02:14 +01:00
sni MIPS: Kconfig: Rename several firmware related config symbols. 2012-12-13 17:02:14 +01:00
txx9 MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK 2012-08-01 17:59:15 +02:00
vr41xx Disintegrate asm/system.h for MIPS 2012-03-28 18:30:02 +01:00
wrppmc MIPS: WRPPMC: Migrate to new platform makefile style. 2010-08-05 13:25:51 +01:00
Kbuild MIPS: Repair Kbuild make clean breakage. 2010-10-19 18:32:39 +01:00
Kbuild.platforms Merge branch 'ralf-3.7' of git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next 2012-09-28 16:29:55 +02:00
Kconfig MIPS: Remove usage of CEVT_R4K_LIB config option. 2012-12-13 18:15:24 +01:00
Kconfig.debug Fix typo in various Kconfig file 2012-04-16 14:40:08 +02:00
Makefile MIPS: Kconfig: Rename several firmware related config symbols. 2012-12-13 17:02:14 +01:00