From 98a44c1603596fcfffdae5dc674932bc923db049 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Mon, 21 Oct 2019 15:10:40 +0100 Subject: hw/watchdog/milkymist-sysctl.c: Switch to transaction-based ptimer API MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Switch the milkymist-sysctl code away from bottom-half based ptimers to the new transaction-based ptimer API. This just requires adding begin/commit calls around the various places that modify the ptimer state, and using the new ptimer_init() function to create the timer. Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Message-id: 20191021141040.11007-1-peter.maydell@linaro.org --- hw/timer/milkymist-sysctl.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) (limited to 'hw/timer/milkymist-sysctl.c') diff --git a/hw/timer/milkymist-sysctl.c b/hw/timer/milkymist-sysctl.c index 5193c03850..7a62e212c3 100644 --- a/hw/timer/milkymist-sysctl.c +++ b/hw/timer/milkymist-sysctl.c @@ -31,7 +31,6 @@ #include "hw/ptimer.h" #include "hw/qdev-properties.h" #include "qemu/error-report.h" -#include "qemu/main-loop.h" #include "qemu/module.h" enum { @@ -71,8 +70,6 @@ struct MilkymistSysctlState { MemoryRegion regs_region; - QEMUBH *bh0; - QEMUBH *bh1; ptimer_state *ptimer0; ptimer_state *ptimer1; @@ -161,14 +158,19 @@ static void sysctl_write(void *opaque, hwaddr addr, uint64_t value, s->regs[addr] = value; break; case R_TIMER0_COMPARE: + ptimer_transaction_begin(s->ptimer0); ptimer_set_limit(s->ptimer0, value, 0); s->regs[addr] = value; + ptimer_transaction_commit(s->ptimer0); break; case R_TIMER1_COMPARE: + ptimer_transaction_begin(s->ptimer1); ptimer_set_limit(s->ptimer1, value, 0); s->regs[addr] = value; + ptimer_transaction_commit(s->ptimer1); break; case R_TIMER0_CONTROL: + ptimer_transaction_begin(s->ptimer0); s->regs[addr] = value; if (s->regs[R_TIMER0_CONTROL] & CTRL_ENABLE) { trace_milkymist_sysctl_start_timer0(); @@ -179,8 +181,10 @@ static void sysctl_write(void *opaque, hwaddr addr, uint64_t value, trace_milkymist_sysctl_stop_timer0(); ptimer_stop(s->ptimer0); } + ptimer_transaction_commit(s->ptimer0); break; case R_TIMER1_CONTROL: + ptimer_transaction_begin(s->ptimer1); s->regs[addr] = value; if (s->regs[R_TIMER1_CONTROL] & CTRL_ENABLE) { trace_milkymist_sysctl_start_timer1(); @@ -191,6 +195,7 @@ static void sysctl_write(void *opaque, hwaddr addr, uint64_t value, trace_milkymist_sysctl_stop_timer1(); ptimer_stop(s->ptimer1); } + ptimer_transaction_commit(s->ptimer1); break; case R_ICAP: sysctl_icap_write(s, value); @@ -263,8 +268,12 @@ static void milkymist_sysctl_reset(DeviceState *d) s->regs[i] = 0; } + ptimer_transaction_begin(s->ptimer0); ptimer_stop(s->ptimer0); + ptimer_transaction_commit(s->ptimer0); + ptimer_transaction_begin(s->ptimer1); ptimer_stop(s->ptimer1); + ptimer_transaction_commit(s->ptimer1); /* defaults */ s->regs[R_ICAP] = ICAP_READY; @@ -292,13 +301,15 @@ static void milkymist_sysctl_realize(DeviceState *dev, Error **errp) { MilkymistSysctlState *s = MILKYMIST_SYSCTL(dev); - s->bh0 = qemu_bh_new(timer0_hit, s); - s->bh1 = qemu_bh_new(timer1_hit, s); - s->ptimer0 = ptimer_init_with_bh(s->bh0, PTIMER_POLICY_DEFAULT); - s->ptimer1 = ptimer_init_with_bh(s->bh1, PTIMER_POLICY_DEFAULT); + s->ptimer0 = ptimer_init(timer0_hit, s, PTIMER_POLICY_DEFAULT); + s->ptimer1 = ptimer_init(timer1_hit, s, PTIMER_POLICY_DEFAULT); + ptimer_transaction_begin(s->ptimer0); ptimer_set_freq(s->ptimer0, s->freq_hz); + ptimer_transaction_commit(s->ptimer0); + ptimer_transaction_begin(s->ptimer1); ptimer_set_freq(s->ptimer1, s->freq_hz); + ptimer_transaction_commit(s->ptimer1); } static const VMStateDescription vmstate_milkymist_sysctl = { -- cgit v1.2.3