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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-07-01 18:24:26 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-07-01 18:24:26 +0200 |
| commit | 0890a264794f33df540fbaf274699146903b4e6b (patch) | |
| tree | 0db148936c0275f7da7e607768e3c1018fb733cc /arch/arc/kernel/perf_event.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile (diff) | |
| parent | ARC: Fix build failures for ARCompact in linux-next after ARCv2 support (diff) | |
| download | linux-0890a264794f33df540fbaf274699146903b4e6b.tar.xz linux-0890a264794f33df540fbaf274699146903b4e6b.zip | |
Merge tag 'arc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC architecture updates from Vineet Gupta:
- support for HS38 cores based on ARCv2 ISA
ARCv2 is the next generation ISA from Synopsys and basis for the
HS3{4,6,8} families of processors which retain the traditional ARC mantra of
low power and configurability and are now more performant and feature rich.
HS38x is a 10 stage pipeline core which supports MMU (with huge pages) and
SMP (upto 4 cores) among other features.
+ www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor
+ http://news.synopsys.com/2014-10-14-New-DesignWare-ARC-HS38-Processor-Doubles-Performance-for-Embedded-Linux-Applications
+ http://www.embedded.com/electronics-news/4435975/Synopsys-ARC-HS38-core-gives-2X-boost-to-Linux-based-apps
- support for ARC SDP (Software Development platform): Main Board + CPU Cards
= AXS101: CPU Card with ARC700 in silicon @ 700 MHz
= AXS103: CPU Card with HS38x in FPGA
- refactoring of ARCompact port to accomodate new ARCv2 ISA
- misc updates/cleanups
* tag 'arc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (72 commits)
ARC: Fix build failures for ARCompact in linux-next after ARCv2 support
ARCv2: Allow older gcc to cope with new regime of ARCv2/ARCompact support
ARCv2: [vdk] dts files and defconfig for HS38 VDK
ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores
ARC: [axs101] Prepare for AXS103
ARCv2: [nsim*hs*] Support simulation platforms for HS38x cores
ARCv2: All bits in place, allow ARCv2 builds
ARCv2: SLC: Handle explcit flush for DMA ops (w/o IO-coherency)
ARCv2: STAR 9000837815 workaround hardware exclusive transactions livelock
ARC: Reduce bitops lines of code using macros
ARCv2: barriers
arch: conditionally define smp_{mb,rmb,wmb}
ARC: add smp barriers around atomics per Documentation/atomic_ops.txt
ARC: add compiler barrier to LLSC based cmpxchg
ARCv2: SMP: intc: IDU 2nd level intc for dynamic IRQ distribution
ARCv2: SMP: clocksource: Enable Global Real Time counter
ARCv2: SMP: ARConnect debug/robustness
ARCv2: SMP: Support ARConnect (MCIP) for Inter-Core-Interrupts et al
ARC: make plat_smp_ops weak to allow over-rides
ARCv2: clocksource: Introduce 64bit local RTC counter
...
Diffstat (limited to 'arch/arc/kernel/perf_event.c')
| -rw-r--r-- | arch/arc/kernel/perf_event.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index fd2ec50102f2..1287388c258a 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -266,10 +266,9 @@ static int arc_pmu_add(struct perf_event *event, int flags) static int arc_pmu_device_probe(struct platform_device *pdev) { - struct arc_pmu *arc_pmu; struct arc_reg_pct_build pct_bcr; struct arc_reg_cc_build cc_bcr; - int i, j, ret; + int i, j; union cc_name { struct { @@ -336,9 +335,7 @@ static int arc_pmu_device_probe(struct platform_device *pdev) /* ARC 700 PMU does not support sampling events */ arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT; - ret = perf_pmu_register(&arc_pmu->pmu, pdev->name, PERF_TYPE_RAW); - - return ret; + return perf_pmu_register(&arc_pmu->pmu, pdev->name, PERF_TYPE_RAW); } #ifdef CONFIG_OF |