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linux/arch/mips
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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 MIPS: FW: Remove obsolete header file for MTI platforms. 2013-05-08 12:30:10 +02:00
ath79 MIPS: ath79: Switch to the clkdev framework 2013-09-03 23:22:18 +02:00
bcm47xx MIPS: Set default CPU type for BCM47XX platforms 2013-07-30 18:48:50 +02:00
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 MIPS: Idle: Consolidate all declarations in <asm/idle.h>. 2013-05-22 01:34:27 +02:00
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 MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
fw MIPS: sibyte: Declare the cfe_write() buffer as constant 2013-06-21 18:07:02 +02:00
include MIPS: cpu-features.h: s/MIPS53/MIPS64/ 2013-09-24 11:07:18 +02:00
jazz Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-03-02 07:44:16 -08:00
jz4740 MIPS: jz4740: Correct clock gate bit for DMA controller 2013-07-05 11:40:53 +05:30
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 MIPS: Refactor load/entry address calculations 2013-09-03 17:58:37 +02:00
lib MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code 2013-07-14 19:36:51 -04:00
loongson MIPS: Loongson: Hide the pci code behind CONFIG_PCI 2013-09-03 15:27:39 +02:00
loongson1 MIPS: Idle: Consolidate all declarations in <asm/idle.h>. 2013-05-22 01:34:27 +02:00
math-emu MIPS: Remove unreachable break statements from cp1emu.c 2013-08-26 15:33:40 +02:00
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 MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code 2013-07-14 19:36:51 -04:00
pnx833x MIPS: PNX833x: PNX8335_PCI_ETHERNET_INT depends on CONFIG_SOC_PNX8335 2013-08-05 13:34:22 +02:00
power MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
powertv MIPS: powertv: Drop BOOTLOADER_DRIVER Kconfig symbol 2013-09-03 16:48:37 +02:00
ralink MIPS: Add driver for the built-in PCI controller of the RT3883 SoC 2013-09-04 19:17:21 +02:00
rb532 MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
sgi-ip22 MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
sgi-ip27 MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code 2013-07-14 19:36:51 -04:00
sgi-ip32 MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
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 MIPS: TXx9: Fix build error if CONFIG_TOSHIBA_JMR3927 is not selected 2013-09-03 15:30:50 +02:00
vr41xx MIPS: Idle: Consolidate all declarations in <asm/idle.h>. 2013-05-22 01:34:27 +02:00
Kbuild KVM/MIPS32: Infrastructure/build files. 2013-05-08 03:55:34 +02:00
Kbuild.platforms MIPS: Delete Wind River ppmc eval board support. 2013-07-01 15:10:53 +02:00
Kconfig Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
Kconfig.debug consolidate per-arch stack overflow debugging options 2013-07-04 11:25:39 -07:00
Makefile MIPS: Remove useless comment about kprobe from arch/mips/Makefile 2013-09-18 18:37:48 +02:00