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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id g17sm14515155wrq.58.2019.10.21.07.10.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2019 07:10:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=z7+hfJklYjk2jKatwzbiHbly9fCbMxtArXfoBZjya8Q=; b=SggkvzFBjELMzsGUEwMaLO8jftWtQqDcdPoOAPDAjAUEuTeAZXQv/Nw5ZtF5etmo2d +YQp9zI0/VbXPI2foSNqxlarsaYlGrO1rhsKkwLkTqpxpTxprvYnRqG6C9PKp71WO0C0 BqRNLEoswji3x9RrVuyF2YYyk/7vd4txfqd7O1F4vD2redxgL/LFv+T2ZnTzHGtUZG6X /WP/D/mDhDmuT1citwAp2t8gpzHVCEsjDenT0REGq6O71E9/8/PfwhxS7qQx2WaqUn9p JfZyulEER4hdqn+l7rWI6cHL5cyTThW6RIuzNifZCJS8SC89Xx67KskuQ8JLJ2fKXIL3 dHbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=z7+hfJklYjk2jKatwzbiHbly9fCbMxtArXfoBZjya8Q=; b=GqFPEtg25/IdIdl1j9E76qKUlqrYBkt2noqmtT6I8rdoee2pc7aiVH4xUZLemuRgs0 FQRyp6D86CwfCZ+94ijEY5cx2rQPKZFUe5AmE3G21iThGd3DAk8a50QIzx5RvZhVT1KW wbLxdjt3lhjDOZeFAR+QeMIX41m9BQtEba8KNWV5dcO5A9Z9QLn+QS8SRuNZBVJengsi hs1Kyr5XG3OMhREWaPXbM5CxRdj7p2BxX40AC0J7sAx7hqMovMelChU4RHaPEcMnda69 0sb1NW8ZFk+y03akVavRS7zSGL7m3RH2/zz+dAF+NgkNCbimWlFFOhv0v58/iX1d3q6I x3rA== X-Gm-Message-State: APjAAAXhZDL7oGgOE46EjogHDPPeR0PBJqvJtWNulyI5ck25NBgSSthp KmcCBAWEDjAc3w0vStO0UIriwnCSIM4= X-Google-Smtp-Source: APXvYqzEzYLn2+NIdYnAM4OSAxrc5/wE7frCw7V/rwG9DEShUU4QKVHGIlsyvvGjbKs8/XyomgcRZw== X-Received: by 2002:adf:cd87:: with SMTP id q7mr10440930wrj.216.1571667042587; Mon, 21 Oct 2019 07:10:42 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PATCH v2] hw/watchdog/milkymist-sysctl.c: Switch to transaction-based ptimer API Date: Mon, 21 Oct 2019 15:10:40 +0100 Message-Id: <20191021141040.11007-1-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::442 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Richard Henderson , Michael Walle , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) 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-Daud=C3=A9 --- Changes v1->v2: begin/commit s->ptimer1 in the code for writes to R_TIMER1_CONTROL, not s->ptimer0... I'm not resending the whole of the v1 8-patch series as only a couple of patches had issues, they're all independent changes, and I'm planning to take the patches through my tree anyway. --- hw/timer/milkymist-sysctl.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/hw/timer/milkymist-sysctl.c b/hw/timer/milkymist-sysctl.c index 5193c038501..7a62e212c35 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" =20 enum { @@ -71,8 +70,6 @@ struct MilkymistSysctlState { =20 MemoryRegion regs_region; =20 - QEMUBH *bh0; - QEMUBH *bh1; ptimer_state *ptimer0; ptimer_state *ptimer1; =20 @@ -161,14 +158,19 @@ static void sysctl_write(void *opaque, hwaddr addr, u= int64_t value, s->regs[addr] =3D value; break; case R_TIMER0_COMPARE: + ptimer_transaction_begin(s->ptimer0); ptimer_set_limit(s->ptimer0, value, 0); s->regs[addr] =3D 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] =3D value; + ptimer_transaction_commit(s->ptimer1); break; case R_TIMER0_CONTROL: + ptimer_transaction_begin(s->ptimer0); s->regs[addr] =3D 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, ui= nt64_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] =3D 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, uin= t64_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] =3D 0; } =20 + 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); =20 /* defaults */ s->regs[R_ICAP] =3D ICAP_READY; @@ -292,13 +301,15 @@ static void milkymist_sysctl_realize(DeviceState *dev= , Error **errp) { MilkymistSysctlState *s =3D MILKYMIST_SYSCTL(dev); =20 - s->bh0 =3D qemu_bh_new(timer0_hit, s); - s->bh1 =3D qemu_bh_new(timer1_hit, s); - s->ptimer0 =3D ptimer_init_with_bh(s->bh0, PTIMER_POLICY_DEFAULT); - s->ptimer1 =3D ptimer_init_with_bh(s->bh1, PTIMER_POLICY_DEFAULT); + s->ptimer0 =3D ptimer_init(timer0_hit, s, PTIMER_POLICY_DEFAULT); + s->ptimer1 =3D ptimer_init(timer1_hit, s, PTIMER_POLICY_DEFAULT); =20 + 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); } =20 static const VMStateDescription vmstate_milkymist_sysctl =3D { --=20 2.20.1