From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yijing Wang Date: Mon, 20 Jul 2015 12:01:12 +0000 Subject: [PATCH part3 v12 04/10] PCI: Introduce pci_host_assign_domain_nr() to assign domain Message-Id: <1437393678-4077-5-git-send-email-wangyijing@huawei.com> List-Id: References: <1437393678-4077-1-git-send-email-wangyijing@huawei.com> In-Reply-To: <1437393678-4077-1-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, linux-arm-kernel@lists.infradead.org, Russell King , dja@axtens.net, linux-xtensa@linux-xtensa.org, x86@kernel.org, Thomas Gleixner , linux-mips@linux-mips.org, Benjamin Herrenschmidt , Rusty Russell , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Tony Luck , linux-ia64@vger.kernel.org, "David S. Miller" , Guan Xuetao , linux-alpha@vger.kernel.org, linux-m68k@vger.kernel.org, linux-am33-list@redhat.com, Liviu Dudau , Arnd Bergmann , Geert Uytterhoeven , Yijing Wang Introduce pci_host_assign_domain_nr() to assign domain number for pci_host_bridge. Signed-off-by: Yijing Wang --- drivers/pci/pci.c | 24 +++++++++++++++++++----- drivers/pci/pci.h | 1 + 2 files changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 59032e2..79d01e4 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4484,10 +4484,10 @@ static int pci_get_new_domain_nr(void) return atomic_inc_return(&__domain_nr); } -void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent) +static int pci_assign_domain_nr(struct device *dev) { static int use_dt_domains = -1; - int domain = of_get_pci_domain_nr(parent->of_node); + int domain = of_get_pci_domain_nr(dev->of_node); /* * Check DT domain and use_dt_domains values. @@ -4521,16 +4521,30 @@ void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent) use_dt_domains = 0; domain = pci_get_new_domain_nr(); } else { - dev_err(parent, "Node %s has inconsistent \"linux,pci-domain\" property in DT\n", - parent->of_node->full_name); + dev_err(dev, "Node %s has inconsistent \"linux,pci-domain\" property in DT\n", + dev->of_node->full_name); domain = -1; } - bus->domain_nr = domain; + return domain; +} + +void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent) +{ + bus->domain_nr = pci_assign_domain_nr(parent); } #endif #endif +void pci_host_assign_domain_nr(struct pci_host_bridge *host, int domain) +{ +#ifdef CONFIG_PCI_DOMAINS_GENERIC + host->domain = pci_assign_domain_nr(host->dev.parent); +#else + host->domain = domain; +#endif +} + /** * pci_ext_cfg_avail - can we access extended PCI config space? * diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 02192aa..4a815c9 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -344,4 +344,5 @@ static inline void pci_bus_assign_domain_nr(struct pci_bus *bus, } #endif +void pci_host_assign_domain_nr(struct pci_host_bridge *host, int domain); #endif /* DRIVERS_PCI_H */ -- 1.7.1