From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: [PATCHv2 04/13] qemu: helper routines for pci access. Date: Tue, 2 Jun 2009 18:02:26 +0300 Message-ID: <20090602150226.GE6554@redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: Paul Brook , Avi Kivity , qemu-devel@nongnu.org, Carsten Otte , kvm@vger.kernel.org, Rusty Russell , vi Return-path: Received: from mx2.redhat.com ([66.187.237.31]:47703 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756263AbZFBPF4 (ORCPT ); Tue, 2 Jun 2009 11:05:56 -0400 Content-Disposition: inline In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: Add inline routines for convenient access to pci devices with correct (little) endianness. Will be used by MSI-X support. Signed-off-by: Michael S. Tsirkin --- hw/pci.h | 30 +++++++++++++++++++++++++++--- 1 files changed, 27 insertions(+), 3 deletions(-) diff --git a/hw/pci.h b/hw/pci.h index 40137c6..4e112a3 100644 --- a/hw/pci.h +++ b/hw/pci.h @@ -240,21 +240,45 @@ PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint16_t vid, uint16_t did, pci_map_irq_fn map_irq, const char *name); static inline void +pci_set_word(uint8_t *config, uint16_t val) +{ + cpu_to_le16wu((uint16_t *)config, val); +} + +static inline uint16_t +pci_get_word(uint8_t *config) +{ + return le16_to_cpupu((uint16_t *)config); +} + +static inline void +pci_set_long(uint8_t *config, uint32_t val) +{ + cpu_to_le32wu((uint32_t *)config, val); +} + +static inline uint32_t +pci_get_long(uint8_t *config) +{ + return le32_to_cpupu((uint32_t *)config); +} + +static inline void pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val) { - cpu_to_le16wu((uint16_t *)&pci_config[PCI_VENDOR_ID], val); + pci_set_word(&pci_config[PCI_VENDOR_ID], val); } static inline void pci_config_set_device_id(uint8_t *pci_config, uint16_t val) { - cpu_to_le16wu((uint16_t *)&pci_config[PCI_DEVICE_ID], val); + pci_set_word(&pci_config[PCI_DEVICE_ID], val); } static inline void pci_config_set_class(uint8_t *pci_config, uint16_t val) { - cpu_to_le16wu((uint16_t *)&pci_config[PCI_CLASS_DEVICE], val); + pci_set_word(&pci_config[PCI_CLASS_DEVICE], val); } typedef void (*pci_qdev_initfn)(PCIDevice *dev); -- 1.6.3.1.56.g79e1.dirty