From: Takao Indoh <indou.takao@jp.fujitsu.com> To: linux-pci@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org Cc: tokunaga.keiich@jp.fujitsu.com, kexec@lists.infradead.org, hbabu@us.ibm.com, andi@firstfloor.org, ddutile@redhat.com, Takao Indoh <indou.takao@jp.fujitsu.com>, ishii.hironobu@jp.fujitsu.com, hpa@zytor.com, bhelgaas@google.com, tglx@linutronix.de, yinghai@kernel.org, mingo@redhat.com, vgoyal@redhat.com, khalid@gonehiking.org Subject: [PATCH v7 1/5] x86, pci: add dummy pci device for early stage Date: Tue, 27 Nov 2012 09:42:34 +0900 (JST) [thread overview] Message-ID: <20121127004154.3604.89729.sendpatchset@tindoh.g01.fujitsu.local> (raw) In-Reply-To: <20121127004144.3604.61708.sendpatchset@tindoh.g01.fujitsu.local> So we can pass pci_dev *dev to reuse some generic pci functions. The original patch was written by Yinghai Lu. Signed-off-by: Takao Indoh <indou.takao@jp.fujitsu.com> --- arch/x86/include/asm/pci-direct.h | 2 + arch/x86/pci/early.c | 74 +++++++++++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h index b1e7a45..b6360d3 100644 --- a/arch/x86/include/asm/pci-direct.h +++ b/arch/x86/include/asm/pci-direct.h @@ -18,4 +18,6 @@ extern int early_pci_allowed(void); extern unsigned int pci_early_dump_regs; extern void early_dump_pci_device(u8 bus, u8 slot, u8 func); extern void early_dump_pci_devices(void); + +struct pci_dev *get_early_pci_dev(int num, int slot, int func); #endif /* _ASM_X86_PCI_DIRECT_H */ diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c index d1067d5..024def7 100644 --- a/arch/x86/pci/early.c +++ b/arch/x86/pci/early.c @@ -109,3 +109,77 @@ void early_dump_pci_devices(void) } } } + +static __init int +early_pci_read(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 *value) +{ + int num, slot, func; + + num = bus->number; + slot = PCI_SLOT(devfn); + func = PCI_FUNC(devfn); + switch (size) { + case 1: + *value = read_pci_config_byte(num, slot, func, where); + break; + case 2: + *value = read_pci_config_16(num, slot, func, where); + break; + case 4: + *value = read_pci_config(num, slot, func, where); + break; + } + + return 0; +} + +static __init int +early_pci_write(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 value) +{ + int num, slot, func; + + num = bus->number; + slot = PCI_SLOT(devfn); + func = PCI_FUNC(devfn); + switch (size) { + case 1: + write_pci_config_byte(num, slot, func, where, (u8)value); + break; + case 2: + write_pci_config_16(num, slot, func, where, (u16)value); + break; + case 4: + write_pci_config(num, slot, func, where, (u32)value); + break; + } + + return 0; +} + +static __initdata struct pci_ops pci_early_ops = { + .read = early_pci_read, + .write = early_pci_write, +}; +static __initdata struct pci_bus pci_early_bus = { + .ops = &pci_early_ops, +}; +static __initdata char pci_early_init_name[8]; +static __initdata struct pci_dev pci_early_dev; + +__init struct pci_dev *get_early_pci_dev(int num, int slot, int func) +{ + struct pci_dev *pdev; + + pdev = &pci_early_dev; + memset(pdev, 0, sizeof(*pdev)); + + pdev->bus = &pci_early_bus, + pdev->dev.init_name = pci_early_init_name; + pdev->bus->number = num; + pdev->devfn = PCI_DEVFN(slot, func); + sprintf((char *)pdev->dev.init_name, "%02x:%02x.%01x", num, slot, func); + + return pdev; +} -- 1.7.1
WARNING: multiple messages have this Message-ID (diff)
From: Takao Indoh <indou.takao@jp.fujitsu.com> To: linux-pci@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org Cc: Takao Indoh <indou.takao@jp.fujitsu.com>, tokunaga.keiich@jp.fujitsu.com, kexec@lists.infradead.org, hbabu@us.ibm.com, andi@firstfloor.org, ddutile@redhat.com, ishii.hironobu@jp.fujitsu.com, hpa@zytor.com, bhelgaas@google.com, tglx@linutronix.de, yinghai@kernel.org, mingo@redhat.com, vgoyal@redhat.com, khalid@gonehiking.org Subject: [PATCH v7 1/5] x86, pci: add dummy pci device for early stage Date: Tue, 27 Nov 2012 09:42:34 +0900 (JST) [thread overview] Message-ID: <20121127004154.3604.89729.sendpatchset@tindoh.g01.fujitsu.local> (raw) In-Reply-To: <20121127004144.3604.61708.sendpatchset@tindoh.g01.fujitsu.local> So we can pass pci_dev *dev to reuse some generic pci functions. The original patch was written by Yinghai Lu. Signed-off-by: Takao Indoh <indou.takao@jp.fujitsu.com> --- arch/x86/include/asm/pci-direct.h | 2 + arch/x86/pci/early.c | 74 +++++++++++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h index b1e7a45..b6360d3 100644 --- a/arch/x86/include/asm/pci-direct.h +++ b/arch/x86/include/asm/pci-direct.h @@ -18,4 +18,6 @@ extern int early_pci_allowed(void); extern unsigned int pci_early_dump_regs; extern void early_dump_pci_device(u8 bus, u8 slot, u8 func); extern void early_dump_pci_devices(void); + +struct pci_dev *get_early_pci_dev(int num, int slot, int func); #endif /* _ASM_X86_PCI_DIRECT_H */ diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c index d1067d5..024def7 100644 --- a/arch/x86/pci/early.c +++ b/arch/x86/pci/early.c @@ -109,3 +109,77 @@ void early_dump_pci_devices(void) } } } + +static __init int +early_pci_read(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 *value) +{ + int num, slot, func; + + num = bus->number; + slot = PCI_SLOT(devfn); + func = PCI_FUNC(devfn); + switch (size) { + case 1: + *value = read_pci_config_byte(num, slot, func, where); + break; + case 2: + *value = read_pci_config_16(num, slot, func, where); + break; + case 4: + *value = read_pci_config(num, slot, func, where); + break; + } + + return 0; +} + +static __init int +early_pci_write(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 value) +{ + int num, slot, func; + + num = bus->number; + slot = PCI_SLOT(devfn); + func = PCI_FUNC(devfn); + switch (size) { + case 1: + write_pci_config_byte(num, slot, func, where, (u8)value); + break; + case 2: + write_pci_config_16(num, slot, func, where, (u16)value); + break; + case 4: + write_pci_config(num, slot, func, where, (u32)value); + break; + } + + return 0; +} + +static __initdata struct pci_ops pci_early_ops = { + .read = early_pci_read, + .write = early_pci_write, +}; +static __initdata struct pci_bus pci_early_bus = { + .ops = &pci_early_ops, +}; +static __initdata char pci_early_init_name[8]; +static __initdata struct pci_dev pci_early_dev; + +__init struct pci_dev *get_early_pci_dev(int num, int slot, int func) +{ + struct pci_dev *pdev; + + pdev = &pci_early_dev; + memset(pdev, 0, sizeof(*pdev)); + + pdev->bus = &pci_early_bus, + pdev->dev.init_name = pci_early_init_name; + pdev->bus->number = num; + pdev->devfn = PCI_DEVFN(slot, func); + sprintf((char *)pdev->dev.init_name, "%02x:%02x.%01x", num, slot, func); + + return pdev; +} -- 1.7.1 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2012-11-27 0:42 UTC|newest] Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-11-27 0:42 [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu Takao Indoh 2012-11-27 0:42 ` Takao Indoh 2012-11-27 0:42 ` Takao Indoh [this message] 2012-11-27 0:42 ` [PATCH v7 1/5] x86, pci: add dummy pci device for early stage Takao Indoh 2012-11-27 0:42 ` [PATCH v7 2/5] PCI: Define the maximum number of PCI function Takao Indoh 2012-11-27 0:42 ` Takao Indoh 2012-11-27 0:42 ` [PATCH v7 3/5] Make reset_devices available at early stage Takao Indoh 2012-11-27 0:42 ` Takao Indoh 2012-11-27 0:43 ` [PATCH v7 4/5] x86, pci: Reset PCIe devices at boot time Takao Indoh 2012-11-27 0:43 ` Takao Indoh 2012-11-27 0:43 ` [PATCH v7 5/5] x86, pci: Enable PCI INTx when MSI is disabled Takao Indoh 2012-11-27 0:43 ` Takao Indoh 2012-11-30 15:49 ` [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu MUNEDA Takahiro 2012-11-30 15:49 ` MUNEDA Takahiro 2012-12-21 16:19 ` Yinghai Lu 2012-12-21 16:19 ` Yinghai Lu 2013-01-07 19:09 ` Thomas Renninger 2013-01-07 19:09 ` Thomas Renninger 2013-01-07 20:16 ` Yinghai Lu 2013-01-07 20:16 ` Yinghai Lu 2013-01-08 0:42 ` Thomas Renninger 2013-01-08 0:42 ` Thomas Renninger 2013-01-08 3:04 ` Yinghai Lu 2013-01-08 3:04 ` Yinghai Lu 2013-01-08 16:47 ` [PATCH] Only reset e820 once, even with multiple memmap=exactmap params Thomas Renninger 2013-01-08 16:47 ` Thomas Renninger 2013-01-08 17:19 ` Yinghai Lu 2013-01-08 17:19 ` Yinghai Lu 2013-01-10 3:21 ` Thomas Renninger 2013-01-10 3:21 ` Thomas Renninger 2013-01-10 14:26 ` Vivek Goyal 2013-01-10 14:26 ` Vivek Goyal 2013-01-10 16:53 ` Yinghai Lu 2013-01-10 16:53 ` Yinghai Lu 2013-01-10 17:01 ` Vivek Goyal 2013-01-10 17:01 ` Vivek Goyal 2013-01-10 17:11 ` Yinghai Lu 2013-01-10 17:11 ` Yinghai Lu 2013-01-10 23:34 ` Yinghai Lu 2013-01-11 12:33 ` [PATCH] x86 e820: only void usable memory areas in memmap=exactmap case Thomas Renninger 2013-01-11 12:33 ` Thomas Renninger 2013-01-11 16:16 ` Yinghai Lu 2013-01-11 16:16 ` Yinghai Lu 2013-01-11 18:24 ` Thomas Renninger 2013-01-11 18:24 ` Thomas Renninger 2013-01-11 19:59 ` Yinghai Lu 2013-01-11 19:59 ` Yinghai Lu 2013-01-11 20:06 ` H. Peter Anvin 2013-01-11 20:06 ` H. Peter Anvin 2013-01-11 21:09 ` Yinghai Lu 2013-01-11 21:09 ` Yinghai Lu 2013-01-11 22:16 ` H. Peter Anvin 2013-01-11 22:16 ` H. Peter Anvin 2013-01-12 11:31 ` Thomas Renninger 2013-01-12 11:31 ` Thomas Renninger 2013-01-12 17:07 ` Yinghai Lu 2013-01-12 17:07 ` Yinghai Lu 2013-01-14 2:08 ` Thomas Renninger 2013-01-14 2:08 ` Thomas Renninger 2013-01-14 2:43 ` Yinghai Lu 2013-01-14 2:43 ` Yinghai Lu 2013-01-14 15:05 ` Thomas Renninger 2013-01-14 15:05 ` Thomas Renninger 2013-01-14 19:04 ` Yinghai Lu 2013-01-14 19:04 ` Yinghai Lu 2013-01-15 0:54 ` Thomas Renninger 2013-01-15 0:54 ` Thomas Renninger 2013-01-15 4:45 ` Yinghai Lu 2013-01-15 4:45 ` Yinghai Lu 2013-01-22 15:21 ` Thomas Renninger 2013-01-22 15:21 ` Thomas Renninger 2013-01-08 16:50 ` [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu Thomas Renninger 2013-01-08 16:50 ` Thomas Renninger 2013-01-08 17:27 ` Yinghai Lu 2013-01-08 17:27 ` Yinghai Lu 2013-01-09 2:32 ` Thomas Renninger 2013-01-09 2:32 ` Thomas Renninger 2013-01-09 4:39 ` Takao Indoh 2013-01-09 4:39 ` Takao Indoh 2013-01-21 1:11 ` Takao Indoh 2013-01-21 1:11 ` Takao Indoh 2013-01-23 0:47 ` Thomas Renninger 2013-01-23 0:47 ` Thomas Renninger 2013-01-24 0:23 ` Takao Indoh 2013-01-24 0:23 ` Takao Indoh 2013-01-29 1:14 ` Thomas Renninger 2013-01-29 1:14 ` Thomas Renninger 2013-01-30 5:01 ` Takao Indoh 2013-01-30 5:01 ` Takao Indoh 2013-03-04 0:56 ` Takao Indoh 2013-03-04 0:56 ` Takao Indoh 2013-03-04 22:00 ` Don Dutile 2013-03-04 22:00 ` Don Dutile 2013-03-05 0:56 ` Takao Indoh 2013-03-05 0:56 ` Takao Indoh 2012-12-21 9:59 ` oliver yang 2012-12-21 10:37 ` Takao Indoh 2012-12-21 10:37 ` Takao Indoh
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