From patchwork Mon Dec 19 22:01:44 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 5890 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 16CB9240A4 for ; Mon, 19 Dec 2011 22:01:49 +0000 (UTC) Received: from mail-ey0-f180.google.com (mail-ey0-f180.google.com [209.85.215.180]) by fiordland.canonical.com (Postfix) with ESMTP id F1FEDA18818 for ; Mon, 19 Dec 2011 22:01:48 +0000 (UTC) Received: by eaac11 with SMTP id c11so2529425eaa.11 for ; Mon, 19 Dec 2011 14:01:48 -0800 (PST) Received: by 10.204.156.219 with SMTP id y27mr5577961bkw.125.1324332108713; Mon, 19 Dec 2011 14:01:48 -0800 (PST) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.205.82.144 with SMTP id ac16cs18266bkc; Mon, 19 Dec 2011 14:01:48 -0800 (PST) Received: by 10.180.77.42 with SMTP id p10mr2469037wiw.5.1324332106883; Mon, 19 Dec 2011 14:01:46 -0800 (PST) Received: from mnementh.archaic.org.uk (mnementh.archaic.org.uk. [81.2.115.146]) by mx.google.com with ESMTPS id gn10si7848380wib.2.2011.12.19.14.01.46 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 19 Dec 2011 14:01:46 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of pm215@archaic.org.uk designates 81.2.115.146 as permitted sender) client-ip=81.2.115.146; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of pm215@archaic.org.uk designates 81.2.115.146 as permitted sender) smtp.mail=pm215@archaic.org.uk Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.72) (envelope-from ) id 1RclHE-0007Yc-E2; Mon, 19 Dec 2011 22:01:44 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Cc: patches@linaro.org Subject: [PATCH] hw/pl181.c: Add save/load support Date: Mon, 19 Dec 2011 22:01:44 +0000 Message-Id: <1324332104-29027-1-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.2.5 Add save/load support to the PL181. Signed-off-by: Peter Maydell --- This isn't terribly useful until hw/sd.c has save/load support, of course; I have a patch cooking for that. hw/pl181.c | 49 ++++++++++++++++++++++++++++++++++++++++--------- 1 files changed, 40 insertions(+), 9 deletions(-) diff --git a/hw/pl181.c b/hw/pl181.c index d05bc19..b79aa41 100644 --- a/hw/pl181.c +++ b/hw/pl181.c @@ -38,20 +38,45 @@ typedef struct { uint32_t datacnt; uint32_t status; uint32_t mask[2]; - int fifo_pos; - int fifo_len; + int32_t fifo_pos; + int32_t fifo_len; /* The linux 2.6.21 driver is buggy, and misbehaves if new data arrives while it is reading the FIFO. We hack around this be defering subsequent transfers until after the driver polls the status word. http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=4446/1 */ - int linux_hack; + int32_t linux_hack; uint32_t fifo[PL181_FIFO_LEN]; qemu_irq irq[2]; /* GPIO outputs for 'card is readonly' and 'card inserted' */ qemu_irq cardstatus[2]; } pl181_state; +static const VMStateDescription vmstate_pl181 = { + .name = "pl181", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(clock, pl181_state), + VMSTATE_UINT32(power, pl181_state), + VMSTATE_UINT32(cmdarg, pl181_state), + VMSTATE_UINT32(cmd, pl181_state), + VMSTATE_UINT32(datatimer, pl181_state), + VMSTATE_UINT32(datalength, pl181_state), + VMSTATE_UINT32(respcmd, pl181_state), + VMSTATE_UINT32_ARRAY(response, pl181_state, 4), + VMSTATE_UINT32(datactrl, pl181_state), + VMSTATE_UINT32(datacnt, pl181_state), + VMSTATE_UINT32(status, pl181_state), + VMSTATE_UINT32_ARRAY(mask, pl181_state, 2), + VMSTATE_INT32(fifo_pos, pl181_state), + VMSTATE_INT32(fifo_len, pl181_state), + VMSTATE_INT32(linux_hack, pl181_state), + VMSTATE_UINT32_ARRAY(fifo, pl181_state, PL181_FIFO_LEN), + VMSTATE_END_OF_LIST() + } +}; + #define PL181_CMD_INDEX 0x3f #define PL181_CMD_RESPONSE (1 << 6) #define PL181_CMD_LONGRESP (1 << 7) @@ -420,9 +445,9 @@ static const MemoryRegionOps pl181_ops = { .endianness = DEVICE_NATIVE_ENDIAN, }; -static void pl181_reset(void *opaque) +static void pl181_reset(DeviceState *d) { - pl181_state *s = (pl181_state *)opaque; + pl181_state *s = DO_UPCAST(pl181_state, busdev.qdev, d); s->power = 0; s->cmdarg = 0; @@ -459,15 +484,21 @@ static int pl181_init(SysBusDevice *dev) qdev_init_gpio_out(&s->busdev.qdev, s->cardstatus, 2); dinfo = drive_get_next(IF_SD); s->card = sd_init(dinfo ? dinfo->bdrv : NULL, 0); - qemu_register_reset(pl181_reset, s); - pl181_reset(s); - /* ??? Save/restore. */ return 0; } +static SysBusDeviceInfo pl181_info = { + .init = pl181_init, + .qdev.name = "pl181", + .qdev.size = sizeof(pl181_state), + .qdev.vmsd = &vmstate_pl181, + .qdev.reset = pl181_reset, + .qdev.no_user = 1, +}; + static void pl181_register_devices(void) { - sysbus_register_dev("pl181", sizeof(pl181_state), pl181_init); + sysbus_register_withprop(&pl181_info); } device_init(pl181_register_devices)