linux_dsm_epyc7002/arch/mips
Jayachandran C 55c25c2f14 MIPS: mm: Move some checks out of 'for' loop in DMA operations
The check cpu_needs_post_dma_flush() in mips_dma_sync_sg_for_cpu() and
the check !plat_device_is_coherent() in mips_dma_sync_sg_for_device()
can be moved outside the for loop.

As a side effect, this also avoids a GCC bug that caused kernel compile
to fail with the error:

arch/mips/mm/dma-default.c: In function 'mips_dma_sync_sg_for_cpu':
arch/mips/mm/dma-default.c:316:1: internal compiler error: in add_insn_before, at emit-rtl.c:3852

This gcc failure is seen in Code Sourcery toolchains [e.g. gcc version
4.7.2 (Sourcery CodeBench Lite 2012.09-99)] after commit "MIPS: Optimize
current_cpu_type() for better code."

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5907/
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Tested-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-25 17:05:44 +02:00
..
alchemy MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks 2013-09-18 20:25:19 +02:00
ar7
ath79 MIPS: ath79: Switch to the clkdev framework 2013-09-03 23:22:18 +02:00
bcm47xx
bcm63xx MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks 2013-09-18 20:25:19 +02:00
boot MIPS: Fix invalid symbolic link file 2013-09-19 17:04:35 +02:00
cavium-octeon MIPS: Optimize current_cpu_type() for better code. 2013-09-17 18:50:53 +02:00
cobalt
configs MIPS: Lantiq: Add defconfig for xway SoC 2013-09-03 23:22:16 +02:00
dec MIPS: Optimize current_cpu_type() for better code. 2013-09-17 18:50:53 +02:00
emma
fw
include MIPS: cpu-features.h: s/MIPS53/MIPS64/ 2013-09-24 11:07:18 +02:00
jazz
jz4740
kernel MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs. 2013-09-19 11:23:10 +02:00
kvm Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2013-09-04 18:15:06 -07:00
lantiq MIPS: Lantiq: Falcon: fix asc clock definition 2013-09-03 23:22:16 +02:00
lasat
lib
loongson
loongson1
math-emu
mm MIPS: mm: Move some checks out of 'for' loop in DMA operations 2013-09-25 17:05:44 +02:00
mti-malta MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks 2013-09-18 20:25:19 +02:00
mti-sead3 MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks 2013-09-18 20:25:19 +02:00
netlogic MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks 2013-09-18 20:25:19 +02:00
oprofile MIPS: Optimize current_cpu_type() for better code. 2013-09-17 18:50:53 +02:00
pci MIPS: PCI: pci-bcm1480: Include missing vt.h header 2013-09-19 12:50:16 +02:00
pmcs-msp71xx
pnx833x
power
powertv
ralink MIPS: Add driver for the built-in PCI controller of the RT3883 SoC 2013-09-04 19:17:21 +02:00
rb532
sgi-ip22
sgi-ip27
sgi-ip32
sibyte MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks 2013-09-18 20:25:19 +02:00
sni MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks 2013-09-18 20:25:19 +02:00
txx9
vr41xx
Kbuild
Kbuild.platforms
Kconfig Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
Kconfig.debug
Makefile MIPS: Remove useless comment about kprobe from arch/mips/Makefile 2013-09-18 18:37:48 +02:00