Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756308Ab3DLWqb (ORCPT ); Fri, 12 Apr 2013 18:46:31 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:47035 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755435Ab3DLWq2 (ORCPT ); Fri, 12 Apr 2013 18:46:28 -0400 From: Yinghai Lu To: Bjorn Helgaas , Ram Pai Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH v4 01/29] PCI: Clean up quirk_io_region Date: Fri, 12 Apr 2013 15:44:15 -0700 Message-Id: <1365806683-26717-2-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1365806683-26717-1-git-send-email-yinghai@kernel.org> References: <1365806683-26717-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8247 Lines: 234 Before every quirk_io_region calling, pci_read_config_word is called. We can fold that calling into quirk_io_region() to make code more readable. According to Bjorn, split this one as separated patch from addon resource patch. Signed-off-by: Yinghai Lu --- drivers/pci/quirks.c | 132 ++++++++++++++++++--------------------------------- 1 file changed, 47 insertions(+), 85 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 4273a2d..2dac170 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -324,29 +324,32 @@ static void quirk_cs5536_vsa(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa); -static void quirk_io_region(struct pci_dev *dev, unsigned region, - unsigned size, int nr, const char *name) +static void quirk_io_region(struct pci_dev *dev, int port, + unsigned size, int nr, const char *name) { - region &= ~(size-1); - if (region) { - struct pci_bus_region bus_region; - struct resource *res = dev->resource + nr; + u16 region; + struct pci_bus_region bus_region; + struct resource *res = dev->resource + nr; - res->name = pci_name(dev); - res->start = region; - res->end = region + size - 1; - res->flags = IORESOURCE_IO; + pci_read_config_word(dev, port, ®ion); + region &= ~(size - 1); - /* Convert from PCI bus to resource space. */ - bus_region.start = res->start; - bus_region.end = res->end; - pcibios_bus_to_resource(dev, res, &bus_region); + if (!region) + return; - if (pci_claim_resource(dev, nr) == 0) - dev_info(&dev->dev, "quirk: %pR claimed by %s\n", - res, name); - } -} + res->name = pci_name(dev); + res->start = region; + res->end = region + size - 1; + res->flags = IORESOURCE_IO; + + /* Convert from PCI bus to resource space. */ + bus_region.start = res->start; + bus_region.end = res->end; + pcibios_bus_to_resource(dev, res, &bus_region); + + if (!pci_claim_resource(dev, nr)) + dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name); +} /* * ATI Northbridge setups MCE the processor if you even @@ -374,12 +377,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_ */ static void quirk_ali7101_acpi(struct pci_dev *dev) { - u16 region; - - pci_read_config_word(dev, 0xE0, ®ion); - quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); - pci_read_config_word(dev, 0xE2, ®ion); - quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); + quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); + quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi); @@ -442,12 +441,10 @@ static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int */ static void quirk_piix4_acpi(struct pci_dev *dev) { - u32 region, res_a; + u32 res_a; - pci_read_config_dword(dev, 0x40, ®ion); - quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI"); - pci_read_config_dword(dev, 0x90, ®ion); - quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB"); + quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI"); + quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB"); /* Device resource A has enables for some of the other ones */ pci_read_config_dword(dev, 0x5c, &res_a); @@ -491,7 +488,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, qui */ static void quirk_ich4_lpc_acpi(struct pci_dev *dev) { - u32 region; u8 enable; /* @@ -503,22 +499,14 @@ static void quirk_ich4_lpc_acpi(struct pci_dev *dev) */ pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); - if (enable & ICH4_ACPI_EN) { - pci_read_config_dword(dev, ICH_PMBASE, ®ion); - region &= PCI_BASE_ADDRESS_IO_MASK; - if (region >= PCIBIOS_MIN_IO) - quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, - "ICH4 ACPI/GPIO/TCO"); - } + if (enable & ICH4_ACPI_EN) + quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, + "ICH4 ACPI/GPIO/TCO"); pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable); - if (enable & ICH4_GPIO_EN) { - pci_read_config_dword(dev, ICH4_GPIOBASE, ®ion); - region &= PCI_BASE_ADDRESS_IO_MASK; - if (region >= PCIBIOS_MIN_IO) - quirk_io_region(dev, region, 64, - PCI_BRIDGE_RESOURCES + 1, "ICH4 GPIO"); - } + if (enable & ICH4_GPIO_EN) + quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, + "ICH4 GPIO"); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi); @@ -533,26 +521,17 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, qui static void ich6_lpc_acpi_gpio(struct pci_dev *dev) { - u32 region; u8 enable; pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); - if (enable & ICH6_ACPI_EN) { - pci_read_config_dword(dev, ICH_PMBASE, ®ion); - region &= PCI_BASE_ADDRESS_IO_MASK; - if (region >= PCIBIOS_MIN_IO) - quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, - "ICH6 ACPI/GPIO/TCO"); - } + if (enable & ICH6_ACPI_EN) + quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, + "ICH6 ACPI/GPIO/TCO"); pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable); - if (enable & ICH6_GPIO_EN) { - pci_read_config_dword(dev, ICH6_GPIOBASE, ®ion); - region &= PCI_BASE_ADDRESS_IO_MASK; - if (region >= PCIBIOS_MIN_IO) - quirk_io_region(dev, region, 64, - PCI_BRIDGE_RESOURCES + 1, "ICH6 GPIO"); - } + if (enable & ICH6_GPIO_EN) + quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, + "ICH6 GPIO"); } static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize) @@ -650,13 +629,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, qui */ static void quirk_vt82c586_acpi(struct pci_dev *dev) { - u32 region; - - if (dev->revision & 0x10) { - pci_read_config_dword(dev, 0x48, ®ion); - region &= PCI_BASE_ADDRESS_IO_MASK; - quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI"); - } + if (dev->revision & 0x10) + quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES, + "vt82c586 ACPI"); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi); @@ -668,18 +643,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt */ static void quirk_vt82c686_acpi(struct pci_dev *dev) { - u16 hm; - u32 smb; - quirk_vt82c586_acpi(dev); - pci_read_config_word(dev, 0x70, &hm); - hm &= PCI_BASE_ADDRESS_IO_MASK; - quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon"); + quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1, + "vt82c686 HW-mon"); - pci_read_config_dword(dev, 0x90, &smb); - smb &= PCI_BASE_ADDRESS_IO_MASK; - quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB"); + quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB"); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi); @@ -690,15 +659,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt */ static void quirk_vt8235_acpi(struct pci_dev *dev) { - u16 pm, smb; - - pci_read_config_word(dev, 0x88, &pm); - pm &= PCI_BASE_ADDRESS_IO_MASK; - quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM"); - - pci_read_config_word(dev, 0xd0, &smb); - smb &= PCI_BASE_ADDRESS_IO_MASK; - quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB"); + quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM"); + quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB"); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/