From patchwork Mon Mar 18 17:47:44 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 15414 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id 5086123E00 for ; Mon, 18 Mar 2013 17:47:52 +0000 (UTC) Received: from mail-ve0-f170.google.com (mail-ve0-f170.google.com [209.85.128.170]) by fiordland.canonical.com (Postfix) with ESMTP id EDEE1A18827 for ; Mon, 18 Mar 2013 17:47:51 +0000 (UTC) Received: by mail-ve0-f170.google.com with SMTP id 14so4633260vea.15 for ; Mon, 18 Mar 2013 10:47:51 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:x-forwarded-to:x-forwarded-for:delivered-to:x-received :received-spf:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references:x-gm-message-state; bh=OCF8y5bqckiUDZtAbI1fUivXdOQyAxkmBThYkLsJg+c=; b=S5YIfal0TuKZQ7UcK6wInNUBwMdGr0mznu+LsC2wSGy1+BgsQRrunGz7Hrldu3iDke zgzu/D7OLWlTVZAx5xSB0C16XcMmmEAmdBd2V5GslN6N30lXDggjWBXy604NjA2dOx+n /+ZGx0F+ngFdAx+64eyu2TUyU3NgNF7lsyAvn8D0aj6VHz/1Y1tyqZ0lYWVTmskRz7QV JlqG3LBiqPEQKQXu30wPYFqA2Z0nisT3bxPZybAdCs7q85JgU6pSyZRxfVysj7Ps4Eq+ IIEFtlwEI01apbSm8y/Vt8yy/ZeiIJpMiB4ig26g6SkxMmPvSe4x3xwehER94emoRa8G y3cg== X-Received: by 10.52.93.235 with SMTP id cx11mr17792022vdb.51.1363628871331; Mon, 18 Mar 2013 10:47:51 -0700 (PDT) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.58.127.98 with SMTP id nf2csp39264veb; Mon, 18 Mar 2013 10:47:50 -0700 (PDT) X-Received: by 10.205.23.4 with SMTP id qy4mr7404789bkb.89.1363628867915; Mon, 18 Mar 2013 10:47:47 -0700 (PDT) Received: from mnementh.archaic.org.uk (1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.1.0.0.b.8.0.1.0.0.2.ip6.arpa. [2001:8b0:1d0::1]) by mx.google.com with ESMTPS id hu1si5125897bkc.286.2013.03.18.10.47.47 (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 18 Mar 2013 10:47:47 -0700 (PDT) Received-SPF: neutral (google.com: 2001:8b0:1d0::1 is neither permitted nor denied by best guess record for domain of pm215@archaic.org.uk) client-ip=2001:8b0:1d0::1; Authentication-Results: mx.google.com; spf=neutral (google.com: 2001:8b0:1d0::1 is neither permitted nor denied by best guess record for domain of pm215@archaic.org.uk) smtp.mail=pm215@archaic.org.uk Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.72) (envelope-from ) id 1UHe9x-0007eV-Kq; Mon, 18 Mar 2013 17:47:45 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Cc: patches@linaro.org, =?UTF-8?q?Andreas=20F=C3=A4rber?= Subject: [PATCH v2 1/2] arm_gic: Fix sizes of state fields in preparation for vmstate support Date: Mon, 18 Mar 2013 17:47:44 +0000 Message-Id: <1363628865-29390-2-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1363628865-29390-1-git-send-email-peter.maydell@linaro.org> References: <1363628865-29390-1-git-send-email-peter.maydell@linaro.org> X-Gm-Message-State: ALoCoQnCBUhY2faElFfMmDmu4LEFNHK4jqBn7TFSKHEUbUMyyuogc3ZbOoGZEb64+JmaUK30wVRT In preparation for switching to vmstate for migration support, fix the sizes of various GIC state fields. In particular, we replace all the bitfields (which VMState can't deal with) with straightforward uint8_t values which we do bit operations on. (The bitfields made more sense when NCPU was set differently in different situations, but we now always model at the architectural limit of 8.) Signed-off-by: Peter Maydell Reviewed-by: Igor Mitsyanko Reviewed-by: Andreas Färber --- hw/arm_gic_common.c | 4 ++-- hw/arm_gic_internal.h | 42 +++++++++++++++++++++--------------------- hw/armv7m_nvic.c | 4 ++-- 3 files changed, 25 insertions(+), 25 deletions(-) diff --git a/hw/arm_gic_common.c b/hw/arm_gic_common.c index f2dc8bf..f95bec3 100644 --- a/hw/arm_gic_common.c +++ b/hw/arm_gic_common.c @@ -149,7 +149,7 @@ static void arm_gic_common_reset(DeviceState *dev) s->current_pending[i] = 1023; s->running_irq[i] = 1023; s->running_priority[i] = 0x100; - s->cpu_enabled[i] = 0; + s->cpu_enabled[i] = false; } for (i = 0; i < 16; i++) { GIC_SET_ENABLED(i, ALL_CPU_MASK); @@ -161,7 +161,7 @@ static void arm_gic_common_reset(DeviceState *dev) s->irq_target[i] = 1; } } - s->enabled = 0; + s->enabled = false; } static Property arm_gic_common_properties[] = { diff --git a/hw/arm_gic_internal.h b/hw/arm_gic_internal.h index 3e1928b..99a3bc3 100644 --- a/hw/arm_gic_internal.h +++ b/hw/arm_gic_internal.h @@ -45,14 +45,14 @@ #define GIC_SET_ACTIVE(irq, cm) s->irq_state[irq].active |= (cm) #define GIC_CLEAR_ACTIVE(irq, cm) s->irq_state[irq].active &= ~(cm) #define GIC_TEST_ACTIVE(irq, cm) ((s->irq_state[irq].active & (cm)) != 0) -#define GIC_SET_MODEL(irq) s->irq_state[irq].model = 1 -#define GIC_CLEAR_MODEL(irq) s->irq_state[irq].model = 0 +#define GIC_SET_MODEL(irq) s->irq_state[irq].model = true +#define GIC_CLEAR_MODEL(irq) s->irq_state[irq].model = false #define GIC_TEST_MODEL(irq) s->irq_state[irq].model #define GIC_SET_LEVEL(irq, cm) s->irq_state[irq].level = (cm) #define GIC_CLEAR_LEVEL(irq, cm) s->irq_state[irq].level &= ~(cm) #define GIC_TEST_LEVEL(irq, cm) ((s->irq_state[irq].level & (cm)) != 0) -#define GIC_SET_TRIGGER(irq) s->irq_state[irq].trigger = 1 -#define GIC_CLEAR_TRIGGER(irq) s->irq_state[irq].trigger = 0 +#define GIC_SET_TRIGGER(irq) s->irq_state[irq].trigger = true +#define GIC_CLEAR_TRIGGER(irq) s->irq_state[irq].trigger = false #define GIC_TEST_TRIGGER(irq) s->irq_state[irq].trigger #define GIC_GET_PRIORITY(irq, cpu) (((irq) < GIC_INTERNAL) ? \ s->priority1[irq][cpu] : \ @@ -61,30 +61,30 @@ typedef struct gic_irq_state { /* The enable bits are only banked for per-cpu interrupts. */ - unsigned enabled:NCPU; - unsigned pending:NCPU; - unsigned active:NCPU; - unsigned level:NCPU; - unsigned model:1; /* 0 = N:N, 1 = 1:N */ - unsigned trigger:1; /* nonzero = edge triggered. */ + uint8_t enabled; + uint8_t pending; + uint8_t active; + uint8_t level; + bool model; /* 0 = N:N, 1 = 1:N */ + bool trigger; /* nonzero = edge triggered. */ } gic_irq_state; typedef struct GICState { SysBusDevice busdev; qemu_irq parent_irq[NCPU]; - int enabled; - int cpu_enabled[NCPU]; + bool enabled; + bool cpu_enabled[NCPU]; gic_irq_state irq_state[GIC_MAXIRQ]; - int irq_target[GIC_MAXIRQ]; - int priority1[GIC_INTERNAL][NCPU]; - int priority2[GIC_MAXIRQ - GIC_INTERNAL]; - int last_active[GIC_MAXIRQ][NCPU]; - - int priority_mask[NCPU]; - int running_irq[NCPU]; - int running_priority[NCPU]; - int current_pending[NCPU]; + uint8_t irq_target[GIC_MAXIRQ]; + uint8_t priority1[GIC_INTERNAL][NCPU]; + uint8_t priority2[GIC_MAXIRQ - GIC_INTERNAL]; + uint16_t last_active[GIC_MAXIRQ][NCPU]; + + uint16_t priority_mask[NCPU]; + uint16_t running_irq[NCPU]; + uint16_t running_priority[NCPU]; + uint16_t current_pending[NCPU]; uint32_t num_cpu; diff --git a/hw/armv7m_nvic.c b/hw/armv7m_nvic.c index d198cfd..2351200 100644 --- a/hw/armv7m_nvic.c +++ b/hw/armv7m_nvic.c @@ -458,10 +458,10 @@ static void armv7m_nvic_reset(DeviceState *dev) * as enabled by default, and with a priority mask which allows * all interrupts through. */ - s->gic.cpu_enabled[0] = 1; + s->gic.cpu_enabled[0] = true; s->gic.priority_mask[0] = 0x100; /* The NVIC as a whole is always enabled. */ - s->gic.enabled = 1; + s->gic.enabled = true; systick_reset(s); }