From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yijing Wang Date: Wed, 15 Oct 2014 02:33:14 +0000 Subject: [PATCH v3 16/27] Mips/MSI: Save msi chip in pci sysdata Message-Id: <1413342435-7876-17-git-send-email-wangyijing@huawei.com> List-Id: References: <1413342435-7876-1-git-send-email-wangyijing@huawei.com> In-Reply-To: <1413342435-7876-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Xinwei Hu , Wuyun , linux-arm-kernel@lists.infradead.org, Russell King , linux-arch@vger.kernel.org, arnab.basu@freescale.com, Bharat.Bhushan@freescale.com, x86@kernel.org, Arnd Bergmann , Thomas Gleixner , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Joerg Roedel , iommu@lists.linux-foundation.org, linux-mips@linux-mips.org, Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Sebastian Ott , Tony Luck , linux-ia64@vger.kernel.org, "David S. Miller" , sparclinux@vger.kernel.org, Chris Metcalf , Ralf Baechle , Lucas Stach , David Vrabel , Sergei Shtylyov , Michael Ellerman , Thierry Reding , Thomas Petazzoni , Liviu Dudau , Yijing Wang Save msi chip in pci sysdata, add arch pci_find_msi_chip() to extract out msi chip. Signed-off-by: Yijing Wang --- arch/mips/include/asm/pci.h | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h index 974b0e3..287661b 100644 --- a/arch/mips/include/asm/pci.h +++ b/arch/mips/include/asm/pci.h @@ -43,6 +43,9 @@ struct pci_controller { int iommu; +#ifdef CONFIG_PCI_MSI + struct msi_chip *msi_chip; +#endif /* Optional access methods for reading/writing the bus number of the PCI controller */ int (*get_busno)(void); @@ -54,6 +57,17 @@ struct pci_controller { */ extern void register_pci_controller(struct pci_controller *hose); +#ifdef CONFIG_PCI_MSI + +static inline struct msi_chip *pci_msi_chip(struct pci_bus *bus) +{ + struct pci_controller *control = (struct pci_controller *)bus->sysdata; + + return control->msi_chip; +} + +#endif + /* * board supplied pci irq fixup routine */ -- 1.7.1