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| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-01-30 08:57:22 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-01-30 08:57:22 +0100 |
| commit | 1b62d134d3c5f9e67de096af7ea3e9fe48966f17 (patch) | |
| tree | be30467e997cc8ba0d350309dd498f00cb69969b /tools/testing/radix-tree/linux/kernel.h | |
| parent | ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table() (diff) | |
| parent | ACPICA: Update version to 20161222 (diff) | |
| download | wireguard-linux-1b62d134d3c5f9e67de096af7ea3e9fe48966f17.tar.xz wireguard-linux-1b62d134d3c5f9e67de096af7ea3e9fe48966f17.zip | |
Merge back earlier ACPICA changes for v4.11.
Diffstat (limited to 'tools/testing/radix-tree/linux/kernel.h')
| -rw-r--r-- | tools/testing/radix-tree/linux/kernel.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-tree/linux/kernel.h index be98a47b4e1b..9b43b4975d83 100644 --- a/tools/testing/radix-tree/linux/kernel.h +++ b/tools/testing/radix-tree/linux/kernel.h @@ -8,9 +8,14 @@ #include <limits.h> #include "../../include/linux/compiler.h" +#include "../../include/linux/err.h" #include "../../../include/linux/kconfig.h" +#ifdef BENCHMARK +#define RADIX_TREE_MAP_SHIFT 6 +#else #define RADIX_TREE_MAP_SHIFT 3 +#endif #ifndef NULL #define NULL 0 @@ -43,4 +48,17 @@ static inline int in_interrupt(void) { return 0; } + +/* + * This looks more complex than it should be. But we need to + * get the type for the ~ right in round_down (it needs to be + * as wide as the result!), and we want to evaluate the macro + * arguments just once each. + */ +#define __round_mask(x, y) ((__typeof__(x))((y)-1)) +#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) +#define round_down(x, y) ((x) & ~__round_mask(x, y)) + +#define xchg(ptr, x) uatomic_xchg(ptr, x) + #endif /* _KERNEL_H */ |