| vmbus_et.c (298568) | vmbus_et.c (300827) |
|---|---|
| 1/*- 2 * Copyright (c) 2015,2016 Microsoft Corp. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2015,2016 Microsoft Corp. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/dev/hyperv/vmbus/hv_et.c 298568 2016-04-25 04:58:14Z sephe $"); | 28__FBSDID("$FreeBSD: head/sys/dev/hyperv/vmbus/hv_et.c 300827 2016-05-27 06:12:43Z sephe $"); |
| 29 30#include <sys/param.h> 31#include <sys/bus.h> 32#include <sys/kernel.h> 33#include <sys/module.h> 34#include <sys/proc.h> 35#include <sys/systm.h> 36#include <sys/smp.h> 37#include <sys/time.h> 38#include <sys/timeet.h> 39 | 29 30#include <sys/param.h> 31#include <sys/bus.h> 32#include <sys/kernel.h> 33#include <sys/module.h> 34#include <sys/proc.h> 35#include <sys/systm.h> 36#include <sys/smp.h> 37#include <sys/time.h> 38#include <sys/timeet.h> 39 |
| 40#include "hv_vmbus_priv.h" | 40#include <dev/hyperv/vmbus/hv_vmbus_priv.h> 41#include <dev/hyperv/vmbus/hyperv_reg.h> |
| 41 42#define HV_TIMER_FREQUENCY (10 * 1000 * 1000LL) /* 100ns period */ 43#define HV_MAX_DELTA_TICKS 0xffffffffLL 44#define HV_MIN_DELTA_TICKS 1LL 45 | 42 43#define HV_TIMER_FREQUENCY (10 * 1000 * 1000LL) /* 100ns period */ 44#define HV_MAX_DELTA_TICKS 0xffffffffLL 45#define HV_MIN_DELTA_TICKS 1LL 46 |
| 47#define MSR_HV_STIMER0_CFG_SINT \ 48 ((((uint64_t)HV_VMBUS_TIMER_SINT) << MSR_HV_STIMER_CFG_SINT_SHIFT) & \ 49 MSR_HV_STIMER_CFG_SINT_MASK) 50 |
|
| 46static struct eventtimer *et; 47 48static inline uint64_t 49sbintime2tick(sbintime_t time) 50{ 51 struct timespec val; 52 53 val = sbttots(time); 54 return val.tv_sec * HV_TIMER_FREQUENCY + val.tv_nsec / 100; 55} 56 57static int 58hv_et_start(struct eventtimer *et, sbintime_t firsttime, sbintime_t periodtime) 59{ | 51static struct eventtimer *et; 52 53static inline uint64_t 54sbintime2tick(sbintime_t time) 55{ 56 struct timespec val; 57 58 val = sbttots(time); 59 return val.tv_sec * HV_TIMER_FREQUENCY + val.tv_nsec / 100; 60} 61 62static int 63hv_et_start(struct eventtimer *et, sbintime_t firsttime, sbintime_t periodtime) 64{ |
| 60 union hv_timer_config timer_cfg; 61 uint64_t current; | 65 uint64_t current, config; |
| 62 | 66 |
| 63 timer_cfg.as_uint64 = 0; 64 timer_cfg.auto_enable = 1; 65 timer_cfg.sintx = HV_VMBUS_TIMER_SINT; | 67 config = MSR_HV_STIMER_CFG_AUTOEN | MSR_HV_STIMER0_CFG_SINT; |
| 66 | 68 |
| 67 current = rdmsr(HV_X64_MSR_TIME_REF_COUNT); | 69 current = rdmsr(MSR_HV_TIME_REF_COUNT); |
| 68 current += sbintime2tick(firsttime); 69 | 70 current += sbintime2tick(firsttime); 71 |
| 70 wrmsr(HV_X64_MSR_STIMER0_CONFIG, timer_cfg.as_uint64); 71 wrmsr(HV_X64_MSR_STIMER0_COUNT, current); | 72 wrmsr(MSR_HV_STIMER0_CONFIG, config); 73 wrmsr(MSR_HV_STIMER0_COUNT, current); |
| 72 73 return (0); 74} 75 76static int 77hv_et_stop(struct eventtimer *et) 78{ | 74 75 return (0); 76} 77 78static int 79hv_et_stop(struct eventtimer *et) 80{ |
| 79 wrmsr(HV_X64_MSR_STIMER0_CONFIG, 0); 80 wrmsr(HV_X64_MSR_STIMER0_COUNT, 0); | 81 wrmsr(MSR_HV_STIMER0_CONFIG, 0); 82 wrmsr(MSR_HV_STIMER0_COUNT, 0); |
| 81 82 return (0); 83} 84 85void 86hv_et_intr(struct trapframe *frame) 87{ 88 struct trapframe *oldframe; --- 73 unchanged lines hidden --- | 83 84 return (0); 85} 86 87void 88hv_et_intr(struct trapframe *frame) 89{ 90 struct trapframe *oldframe; --- 73 unchanged lines hidden --- |