#ifndef TAIA_H #define TAIA_H #include #include #include #include #include "rnd.h" struct tai { uint64_t x; }; struct taia { struct tai sec; uint32_t nano; uint32_t atto; }; static inline void tai_pack(unsigned char *s, struct tai *t) { uint64_t x; x = t->x; s[7] = x & 255; x >>= 8; s[6] = x & 255; x >>= 8; s[5] = x & 255; x >>= 8; s[4] = x & 255; x >>= 8; s[3] = x & 255; x >>= 8; s[2] = x & 255; x >>= 8; s[1] = x & 255; x >>= 8; s[0] = x; } static inline void tai_unpack(unsigned char *s, struct tai *t) { uint64_t x; x = (unsigned char) s[0]; x <<= 8; x += (unsigned char) s[1]; x <<= 8; x += (unsigned char) s[2]; x <<= 8; x += (unsigned char) s[3]; x <<= 8; x += (unsigned char) s[4]; x <<= 8; x += (unsigned char) s[5]; x <<= 8; x += (unsigned char) s[6]; x <<= 8; x += (unsigned char) s[7]; t->x = x; } static inline void taia_pack(unsigned char *s, struct taia *t) { unsigned long x; tai_pack(s, &t->sec); s += 8; x = t->atto; s[7] = x & 255; x >>= 8; s[6] = x & 255; x >>= 8; s[5] = x & 255; x >>= 8; s[4] = x; x = t->nano; s[3] = x & 255; x >>= 8; s[2] = x & 255; x >>= 8; s[1] = x & 255; x >>= 8; s[0] = x; } static inline void taia_unpack(unsigned char *s, struct taia *t) { unsigned long x; tai_unpack(s, &t->sec); s += 8; x = (unsigned char) s[4]; x <<= 8; x += (unsigned char) s[5]; x <<= 8; x += (unsigned char) s[6]; x <<= 8; x += (unsigned char) s[7]; t->atto = x; x = (unsigned char) s[0]; x <<= 8; x += (unsigned char) s[1]; x <<= 8; x += (unsigned char) s[2]; x <<= 8; x += (unsigned char) s[3]; t->nano = x; } #define tai_unix(t, u) \ ((void) ((t)->x = 4611686018427387914ULL + \ (uint64_t) (u))) static inline void taia_now(struct taia *t) { struct timeval now; gettimeofday(&now, NULL); tai_unix(&t->sec, now.tv_sec); t->nano = 1000 * now.tv_usec + 500; /* We don't really have it, but bring some noise in. */ t->atto = secrand(); } static inline void taia_sub(struct taia *res, const struct taia *u, const struct taia *v) { unsigned long unano = u->nano; unsigned long uatto = u->atto; res->sec.x = u->sec.x - v->sec.x; res->nano = unano - v->nano; res->atto = uatto - v->atto; if (res->atto > uatto) { res->atto += 1000000000UL; --res->nano; } if (res->nano > unano) { res->nano += 1000000000UL; --res->sec.x; } } static inline void taia_add(struct taia *res, const struct taia *u, const struct taia *v) { res->sec.x = u->sec.x + v->sec.x; res->nano = u->nano + v->nano; res->atto = u->atto + v->atto; if (res->atto > 999999999UL) { res->atto -= 1000000000UL; ++res->nano; } if (res->nano > 999999999UL) { res->nano -= 1000000000UL; ++res->sec.x; } } static inline int taia_less(const struct taia *t, const struct taia *u) { if (t->sec.x < u->sec.x) return 1; if (t->sec.x > u->sec.x) return 0; if (t->nano < u->nano) return 1; if (t->nano > u->nano) return 0; return t->atto < u->atto; } extern bool taia_looks_good(struct taia *arr_taia, struct taia *pkt_taia); #endif /* TAIA_H */ 79999d0a259e78d9ecb53ad82d042f'>Documentation
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-05 10:32:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-05 10:32:16 -0800
commitb40079273279999d0a259e78d9ecb53ad82d042f (patch)
tree62e15c30dc3787493f9bce847cda7eae99aae781 /Documentation
parent383378d115ab6e702d77896071d36056875602db (diff)
parent1b9ec81258827001c869f003e0b8dd2ddc104717 (diff)
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann: "This is a rather large set of bugfixes, as we just returned from the Christmas break. Most of these are relatively unimportant fixes for regressions introduced during the merge window, and about half of the changes are for mach-omap2. A couple of patches are just cleanups and dead code removal that I would not normally have considered for merging after -rc2, but I decided to take them along with the fixes this time. Notable fixes include: - removing the skeleton.dtsi include broke a number of machines, and we have to put empty /chosen nodes back to be able to pass kernel command lines as before - enabling Samsung platforms no longer hardwires CONFIG_HZ to 200, as it had been for no good reason for a long time" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (46 commits) MAINTAINERS: extend PSCI entry to cover the newly add PSCI checker code drivers: psci: annotate timer on stack to silence odebug messages ARM64: defconfig: enable DRM_MESON as module ARM64: dts: meson-gx: Add Graphic Controller nodes ARM64: dts: meson-gxl: fix GPIO include ARM: dts: imx6: Disable "weim" node in the dtsi files ARM: dts: qcom: apq8064: Add missing scm clock ARM: davinci: da8xx: Fix sleeping function called from invalid context ARM: davinci: Make __clk_{enable,disable} functions public ARM: davinci: da850: don't add emac clock to lookup table twice ARM: davinci: da850: fix infinite loop in clk_set_rate() ARM: i.MX: remove map_io callback ARM: dts: vf610-zii-dev-rev-b: Add missing newline ARM: dts: imx6qdl-nitrogen6x: remove duplicate iomux entry ARM: dts: imx31: fix AVIC base address ARM: dts: am572x-idk: Add gpios property to control PCIE_RESETn arm64: dts: vexpress: Support GICC_DIR operations ARM: dts: vexpress: Support GICC_DIR operations firmware: arm_scpi: fix reading sensor values on pre-1.0 SCPI firmwares arm64: dts: msm8996: Add required memory carveouts ...
Diffstat (limited to 'Documentation')