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author | Andrew Dodd <atd7@cornell.edu> | 2013-02-16 18:41:04 -0500 |
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committer | Andrew Dodd <atd7@cornell.edu> | 2013-02-27 09:19:08 -0500 |
commit | b08797f2afdfc604c3143f8725d058aeef8ddcb2 (patch) | |
tree | c59e963bd6931d4e9f9526034ab402cc551f18ae /arch/arm/Kconfig | |
parent | cbfae70f1dcaf3cc6e93061179dad80caa1597fe (diff) | |
parent | 54ea5b40f067cf098cac639973c6628c6944cfb2 (diff) | |
download | kernel_samsung_smdk4412-b08797f2afdfc604c3143f8725d058aeef8ddcb2.zip kernel_samsung_smdk4412-b08797f2afdfc604c3143f8725d058aeef8ddcb2.tar.gz kernel_samsung_smdk4412-b08797f2afdfc604c3143f8725d058aeef8ddcb2.tar.bz2 |
Merge remote-tracking branch 'kernelorg/linux-3.0.y' into 3_0_64
Conflicts:
arch/arm/Kconfig
arch/arm/include/asm/hwcap.h
arch/arm/kernel/smp.c
arch/arm/plat-samsung/adc.c
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_drv.h
drivers/mmc/core/sd.c
drivers/net/tun.c
drivers/net/usb/usbnet.c
drivers/regulator/max8997.c
drivers/usb/core/hub.c
drivers/usb/host/xhci.h
drivers/usb/serial/qcserial.c
fs/jbd2/transaction.c
include/linux/migrate.h
kernel/sys.c
kernel/time/timekeeping.c
lib/genalloc.c
mm/memory-failure.c
mm/memory_hotplug.c
mm/mempolicy.c
mm/page_alloc.c
mm/vmalloc.c
mm/vmscan.c
mm/vmstat.c
scripts/Kbuild.include
Change-Id: I91e2d85c07320c7ccfc04cf98a448e89bed6ade6
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r-- | arch/arm/Kconfig | 64 |
1 files changed, 38 insertions, 26 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b9e66ff..af7e74d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1281,6 +1281,43 @@ config ARM_ERRATA_763722 depends on CPU_V7 && SMP help This option enables the workaround for the 763722 Cortex-A15 erratum. + +config ARM_ERRATA_764369 + bool "ARM errata: Data cache line maintenance operation by MVA may not succeed" + depends on CPU_V7 && SMP + help + This option enables the workaround for erratum 764369 + affecting Cortex-A9 MPCore with two or more processors (all + current revisions). Under certain timing circumstances, a data + cache line maintenance operation by MVA targeting an Inner + Shareable memory region may fail to proceed up to either the + Point of Coherency or to the Point of Unification of the + system. This workaround adds a DSB instruction before the + relevant cache maintenance functions and sets a specific bit + in the diagnostic control register of the SCU. + +config PL310_ERRATA_769419 + bool "PL310 errata: no automatic Store Buffer drain" + depends on CACHE_L2X0 + help + On revisions of the PL310 prior to r3p2, the Store Buffer does + not automatically drain. This can cause normal, non-cacheable + writes to be retained when the memory system is idle, leading + to suboptimal I/O performance for drivers using coherent DMA. + This option adds a write barrier to the cpu_idle loop so that, + on systems with an outer cache, the store buffer is drained + explicitly. + +config ARM_ERRATA_775420 + bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock" + depends on CPU_V7 + help + This option enables the workaround for the 775420 Cortex-A9 (r2p2, + r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance + operation aborts with MMU exception, it might cause the processor + to deadlock. This workaround puts DSB before executing ISB if + an abort may occur on cache maintenance. + endmenu source "arch/arm/common/Kconfig" @@ -1345,32 +1382,6 @@ source "drivers/pci/Kconfig" source "drivers/pcmcia/Kconfig" -config ARM_ERRATA_764369 - bool "ARM errata: Data cache line maintenance operation by MVA may not succeed" - depends on CPU_V7 && SMP - help - This option enables the workaround for erratum 764369 - affecting Cortex-A9 MPCore with two or more processors (all - current revisions). Under certain timing circumstances, a data - cache line maintenance operation by MVA targeting an Inner - Shareable memory region may fail to proceed up to either the - Point of Coherency or to the Point of Unification of the - system. This workaround adds a DSB instruction before the - relevant cache maintenance functions and sets a specific bit - in the diagnostic control register of the SCU. - -config PL310_ERRATA_769419 - bool "PL310 errata: no automatic Store Buffer drain" - depends on CACHE_L2X0 - help - On revisions of the PL310 prior to r3p2, the Store Buffer does - not automatically drain. This can cause normal, non-cacheable - writes to be retained when the memory system is idle, leading - to suboptimal I/O performance for drivers using coherent DMA. - This option adds a write barrier to the cpu_idle loop so that, - on systems with an outer cache, the store buffer is drained - explicitly. - endmenu menu "Kernel Features" @@ -1945,6 +1956,7 @@ source "drivers/cpufreq/Kconfig" config CPU_FREQ_IMX tristate "CPUfreq driver for i.MX CPUs" depends on ARCH_MXC && CPU_FREQ + select CPU_FREQ_TABLE help This enables the CPUfreq driver for i.MX CPUs. |