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Groups > linux.kernel > #1293028
| From | Tomasz Nowicki <tn@semihalf.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH V2 07/23] pci, acpi, mcfg: Provide default RAW ACPI PCI config space accessors. |
| Date | 2015-12-16 16:30 +0100 |
| Message-ID | <qGmbF-3tz-49@gated-at.bofh.it> (permalink) |
| References | <qGm1X-3p8-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Lets keep RAW ACPI PCI config space accessors empty by default,
since we are note sure if they are necessary accross all archs.
Once we sort this out, we can provide generic version or let
architectures to overwrite, like now x86.
Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
---
drivers/acpi/mcfg.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/acpi/mcfg.c b/drivers/acpi/mcfg.c
index 745b83e..3e1e7be 100644
--- a/drivers/acpi/mcfg.c
+++ b/drivers/acpi/mcfg.c
@@ -9,9 +9,30 @@
#include <linux/acpi.h>
#include <linux/ecam.h>
+#include <linux/pci.h>
#define PREFIX "MCFG: "
+/*
+ * raw_pci_read/write - raw ACPI PCI config space accessors.
+ *
+ * By defauly (__weak) these accessors are empty and should be overwritten
+ * by architectures which support operations on ACPI PCI_Config regions,
+ * see osl.c file.
+ */
+
+int __weak raw_pci_read(unsigned int domain, unsigned int bus,
+ unsigned int devfn, int reg, int len, u32 *val)
+{
+ return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+int __weak raw_pci_write(unsigned int domain, unsigned int bus,
+ unsigned int devfn, int reg, int len, u32 val)
+{
+ return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
int __init acpi_parse_mcfg(struct acpi_table_header *header)
{
struct acpi_table_mcfg *mcfg;
--
1.9.1
--
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[PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
[PATCH V2 12/23] pci, acpi: Move ACPI host bridge device companion assignment to core code. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
[PATCH V2 20/23] ACPI, PCI: Refine the way to handle translation_offset for ACPI resources Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
[PATCH V2 01/23] x86, pci: Reorder logic of pci_mmconfig_insert() function Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
[PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge init Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
Re: [PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge init Arnd Bergmann <arnd@arndb.de> - 2015-12-18 13:50 +0100
Re: [PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge init Tomasz Nowicki <tn@semihalf.com> - 2015-12-21 11:30 +0100
[PATCH V2 19/23] acpi, mcfg: Add default PCI config accessors implementation and initial support for related quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
[PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-21 12:50 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Arnd Bergmann <arnd@arndb.de> - 2015-12-21 15:20 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Arnd Bergmann <arnd@arndb.de> - 2015-12-21 23:50 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 00:30 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 00:20 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-22 09:50 +0100
RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-22 10:40 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 17:40 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 17:50 +0100
RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-22 19:00 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-22 11:30 +0100
RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-22 15:50 +0100
Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Hanjun Guo <hanjun.guo@linaro.org> - 2015-12-23 10:40 +0100
[PATCH V2 09/23] pci, acpi, ecam: Add flag to indicate whether ECAM region was hot added or not. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
[PATCH V2 18/23] x86, acpi, pci: Use equivalent function introduced in previous patch. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 14/23] pci, acpi: Provide generic way to assign bus domain number. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 05/23] x86, pci, ecam: mmconfig_64.c becomes default implementation for ECAM driver. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 11/23] arm64, pci: Remove useless boot time IRQ assignment when booting with DT. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 13/23] x86, ia64, pci: Remove ACPI companion device from platform specific data. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 10/23] x86, pci: Cleanup platform specific MCFG data using previously added ECAM hot_added flag. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 16/23] x86, ia64: Include acpi_pci_{add|remove}_bus to the default pcibios_{add|remove}_bus implementation. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-17 11:30 +0100
Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-17 11:50 +0100
Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Stefano Stabellini <stefano.stabellini@eu.citrix.com> - 2015-12-21 19:20 +0100
Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-22 09:40 +0100
[PATCH V2 15/23] x86, ia64, pci: Convert arches to use PCI_DOMAINS_GENERIC. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 08/23] arm64, acpi: Use empty PCI config space accessors from mcfg.c file. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 03/23] pci, acpi, mcfg: Provide generic implementation of MCFG code initialization. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 07/23] pci, acpi, mcfg: Provide default RAW ACPI PCI config space accessors. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 17/23] acpi, mcfg: Implement two calls that might be used to inject/remove MCFG region. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 04/23] x86, pci: mmconfig_{32,64}.c code refactoring - remove code duplication. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
[PATCH V2 02/23] x86, pci, acpi: Move arch-agnostic MMCONFIG (aka ECAM) and ACPI code out of arch/x86/ directory Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Sinan Kaya <okaya@codeaurora.org> - 2015-12-17 22:30 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-18 13:30 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI okaya@codeaurora.org - 2015-12-18 20:00 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-21 11:40 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2015-12-21 13:10 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-21 13:50 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Arnd Bergmann <arnd@arndb.de> - 2015-12-21 15:20 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Okaya@codeaurora.org - 2015-12-21 16:30 +0100
Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Arnd Bergmann <arnd@arndb.de> - 2015-12-21 23:50 +0100
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