#include /* validate @native and @pcp counter values match @expected */ #define CHECK(native, pcp, expected) \ do { \ WARN((native) != (expected), \ "raw %ld (0x%lx) != expected %lld (0x%llx)", \ (native), (native), \ (long long)(expected), (long long)(expected)); \ WARN(__this_cpu_read(pcp) != (expected), \ "pcp %ld (0x%lx) != expected %lld (0x%llx)", \ __this_cpu_read(pcp), __this_cpu_read(pcp), \ (long long)(expected), (long long)(expected)); \ } while (0) static DEFINE_PER_CPU(long, long_counter); static DEFINE_PER_CPU(unsigned long, ulong_counter); static int __init percpu_test_init(void) { /* * volatile prevents compiler from optimizing it uses, otherwise the * +ul_one/-ul_one below would replace with inc/dec instructions. */ volatile unsigned int ui_one = 1; long l = 0; unsigned long ul = 0; pr_info("percpu test start\n"); preempt_disable(); l += -1; __this_cpu_add(long_counter, -1); CHECK(l, long_counter, -1); l += 1; __this_cpu_add(long_counter, 1); CHECK(l, long_counter, 0); ul = 0; __this_cpu_write(ulong_counter, 0); ul += 1UL; __this_cpu_add(ulong_counter, 1UL); CHECK(ul, ulong_counter, 1); ul += -1UL; __this_cpu_add(ulong_counter, -1UL); CHECK(ul, ulong_counter, 0); ul += -(unsigned long)1; __this_cpu_add(ulong_counter, -(unsigned long)1); CHECK(ul, ulong_counter, -1); ul = 0; __this_cpu_write(ulong_counter, 0); ul -= 1; __this_cpu_dec(ulong_counter); CHECK(ul, ulong_counter, -1); CHECK(ul, ulong_counter, ULONG_MAX); l += -ui_one; __this_cpu_add(long_counter, -ui_one); CHECK(l, long_counter, 0xffffffff); l += ui_one; __this_cpu_add(long_counter, ui_one); CHECK(l, long_counter, (long)0x100000000LL); l = 0; __this_cpu_write(long_counter, 0); l -= ui_one; __this_cpu_sub(long_counter, ui_one); CHECK(l, long_counter, -1); l = 0; __this_cpu_write(long_counter, 0); l += ui_one; __this_cpu_add(long_counter, ui_one); CHECK(l, long_counter, 1); l += -ui_one; __this_cpu_add(long_counter, -ui_one); CHECK(l, long_counter, (long)0x100000000LL); l = 0; __this_cpu_write(long_counter, 0); l -= ui_one; this_cpu_sub(long_counter, ui_one); CHECK(l, long_counter, -1); CHECK(l, long_counter, ULONG_MAX); ul = 0; __this_cpu_write(ulong_counter, 0); ul += ui_one; __this_cpu_add(ulong_counter, ui_one); CHECK(ul, ulong_counter, 1); ul = 0; __this_cpu_write(ulong_counter, 0); ul -= ui_one; __this_cpu_sub(ulong_counter, ui_one); CHECK(ul, ulong_counter, -1); CHECK(ul, ulong_counter, ULONG_MAX); ul = 3; __this_cpu_write(ulong_counter, 3); ul = this_cpu_sub_return(ulong_counter, ui_one); CHECK(ul, ulong_counter, 2); ul = __this_cpu_sub_return(ulong_counter, ui_one); CHECK(ul, ulong_counter, 1); preempt_enable(); pr_info("percpu test done\n"); return -EAGAIN; /* Fail will directly unload the module */ } static void __exit percpu_test_exit(void) { } module_init(percpu_test_init) module_exit(percpu_test_exit) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Greg Thelen"); MODULE_DESCRIPTION("percpu operations test"); f7dc2691d1a9527960b07ad2bb'>fsl_dma.h
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authorOlof Johansson <olof@lixom.net>2017-01-29 21:00:48 -0800
committerOlof Johansson <olof@lixom.net>2017-01-29 21:00:48 -0800
commit0a019a28e0ca0af7dc2691d1a9527960b07ad2bb (patch)
tree5ee1db9aacacd6af6701fb290e8a294ef3cc2bf2 /sound/soc/fsl/fsl_dma.h
parentec026b5020688a8bde5fae9a69ae3c59b66ba3ae (diff)
parent8413299cb3933dade6186bbee8363f190032107e (diff)
Merge tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti into fixes
STi DT fix: Since v4.10-rc1, xhci is complaining in loop with : [ 801.953836] usb usb6-port1: Cannot enable. Maybe the USB cable is bad? [ 801.960455] xhci-hcd xhci-hcd.0.auto: Cannot set link state. [ 801.966611] usb usb6-port1: cannot disable (err = -32) set property "snps,dis_u3_susphy_quirk" in DT fix it. * tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti: ARM: dts: STiH407-family: set snps,dis_u3_susphy_quirk Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'sound/soc/fsl/fsl_dma.h')