Date: Thu, 5 Dec 2013 05:59:09 +0000 (UTC) From: Justin Hibbits <jhibbits@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r258958 - projects/pmac_pmu/sys/powerpc/powermac Message-ID: <201312050559.rB55x9FU074317@svn.freebsd.org>
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Author: jhibbits Date: Thu Dec 5 05:59:09 2013 New Revision: 258958 URL: http://svnweb.freebsd.org/changeset/base/258958 Log: Clean up the low level PMU sleep code. This could actually be moved elsewhere, since it's not precisely related to the PMU. Modified: projects/pmac_pmu/sys/powerpc/powermac/pmu.c Modified: projects/pmac_pmu/sys/powerpc/powermac/pmu.c ============================================================================== --- projects/pmac_pmu/sys/powerpc/powermac/pmu.c Thu Dec 5 05:58:17 2013 (r258957) +++ projects/pmac_pmu/sys/powerpc/powermac/pmu.c Thu Dec 5 05:59:09 2013 (r258958) @@ -1129,10 +1129,10 @@ extern void *ap_pcpu; void pmu_sleep_int(void) { + static u_quad_t timebase = 0; jmp_buf resetjb; - u_quad_t timebase; - struct thread *fputd = NULL; - struct thread *vectd = NULL; + struct thread *fputd; + struct thread *vectd; register_t hid0; register_t msr; register_t saved_msr; @@ -1143,14 +1143,12 @@ void pmu_sleep_int(void) *(unsigned long *)0x80 = 0x100; saved_msr = mfmsr(); - timebase = mftb(); - flush_disable_caches(); fputd = PCPU_GET(fputhread); vectd = PCPU_GET(vecthread); if (fputd != NULL) - save_fpu(PCPU_GET(fputhread)); + save_fpu(fputd); if (vectd != NULL) - save_vec(PCPU_GET(vecthread)); + save_vec(vectd); if (setjmp(resetjb) == 0) { sprgs[0] = mfspr(SPR_SPRG0); sprgs[1] = mfspr(SPR_SPRG1); @@ -1158,14 +1156,17 @@ void pmu_sleep_int(void) sprgs[3] = mfspr(SPR_SPRG3); srrs[0] = mfspr(SPR_SRR0); srrs[1] = mfspr(SPR_SRR1); + timebase = mftb(); + powerpc_sync(); + flush_disable_caches(); hid0 = mfspr(SPR_HID0); hid0 = (hid0 & ~(HID0_DOZE | HID0_NAP)) | HID0_SLEEP; powerpc_sync(); isync(); + msr = mfmsr() | PSL_POW; mtspr(SPR_HID0, hid0); powerpc_sync(); - msr = mfmsr() | PSL_POW; while (1) mtmsr(msr); }
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