From patchwork Sun Aug 28 16:56:51 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 111915 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id D9AD5B6F7B for ; Mon, 29 Aug 2011 02:57:31 +1000 (EST) Received: from localhost ([::1]:58447 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qxifn-0006FY-TQ for incoming@patchwork.ozlabs.org; Sun, 28 Aug 2011 12:57:27 -0400 Received: from eggs.gnu.org ([140.186.70.92]:34807) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qxiff-0006FA-10 for qemu-devel@nongnu.org; Sun, 28 Aug 2011 12:57:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qxife-0001I3-17 for qemu-devel@nongnu.org; Sun, 28 Aug 2011 12:57:19 -0400 Received: from mnementh.archaic.org.uk ([81.2.115.146]:38064) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qxifd-0001HJ-QF for qemu-devel@nongnu.org; Sun, 28 Aug 2011 12:57:17 -0400 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.72) (envelope-from ) id 1QxifU-0006zs-JC; Sun, 28 Aug 2011 17:57:08 +0100 From: Peter Maydell To: qemu-devel@nongnu.org Date: Sun, 28 Aug 2011 17:56:51 +0100 Message-Id: <1314550628-26869-3-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1314550628-26869-1-git-send-email-peter.maydell@linaro.org> References: <1314550628-26869-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 81.2.115.146 Cc: "Edgar E. Iglesias" , patches@linaro.org Subject: [Qemu-devel] [PATCH v2 01/18] hw/sysbus: Add sysbus_mmio_get_region() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add a sysbus_mmio_get_region() which allows users of sysbus devices to turn a (SysBusDevice*, mmioidx) tuple into a MemoryRegion*. This enables some useful simplifications of devices which pass through another device's mmio region (either directly or by implementing some kind of memory controller device). Signed-off-by: Peter Maydell --- hw/sysbus.c | 5 +++++ hw/sysbus.h | 1 + 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/hw/sysbus.c b/hw/sysbus.c index f39768b..c365d39 100644 --- a/hw/sysbus.c +++ b/hw/sysbus.c @@ -131,6 +131,11 @@ void sysbus_init_mmio_region(SysBusDevice *dev, MemoryRegion *memory) dev->mmio[n].memory = memory; } +MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n) +{ + return dev->mmio[n].memory; +} + void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size) { pio_addr_t i; diff --git a/hw/sysbus.h b/hw/sysbus.h index b87c6c5..aa3d383 100644 --- a/hw/sysbus.h +++ b/hw/sysbus.h @@ -50,6 +50,7 @@ void sysbus_init_mmio(SysBusDevice *dev, target_phys_addr_t size, void sysbus_init_mmio_cb2(SysBusDevice *dev, mmio_mapfunc cb, mmio_mapfunc unmap); void sysbus_init_mmio_region(SysBusDevice *dev, MemoryRegion *memory); +MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n); void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p); void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target); void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size);