[PATCH v9 19/30] powerpc/pci: Use pci_scan_host_bridge() for simplicity

Now we could use pci_scan_host_bridge() to scan pci buses, provide powerpc specific pci_host_bridge_ops. Signed-off-by: Yijing Wang CC: Benjamin Herrenschmidt CC: linuxppc-dev@lists.ozlabs.org --- arch/powerpc/kernel/pci-common.c | 62 +++-- 1 files changed

Re: [PATCH v9 19/30] powerpc/pci: Use pci_scan_host_bridge() for simplicity

hanks very much for your test and review. Thanks! Yijing. > > > On Fri, 2015-04-03 at 17:25 +0800, Yijing Wang wrote: >> Now we could use pci_scan_host_bridge() to scan >> pci buses, provide powerpc specific pci_host_bridge_ops. >> >> Sign

[PATCH v10 19/29] powerpc/pci: Use pci_scan_host_bridge() for simplicity

Now we could use pci_scan_host_bridge() to scan pci buses, provide powerpc specific pci_host_bridge_ops. Tested-by: Daniel Axtens Signed-off-by: Yijing Wang Reviewed-by: Daniel Axtens CC: Benjamin Herrenschmidt CC: linuxppc-dev@lists.ozlabs.org --- arch/powerpc/kernel/pci-common.c | 62

[PATCH Part3 v11 7/9] PCI: Create pci host bridge prior to root bus

Pci_host_bridge hold the domain number, we need to assign domain number prior to root bus creation, because root bus need to know the domain number to check whether it's alreay exist. Signed-off-by: Yijing Wang --- drivers/pci/probe.c | 60 ++--

[PATCH Part3 v11 9/9] PCI: Remove pci_bus_assign_domain_nr()

Now we save the domain number in pci_host_bridge, we could remove pci_bus_assign_domain_nr() and clean the domain member in pci_bus. Signed-off-by: Yijing Wang --- drivers/pci/pci.c |5 - drivers/pci/pci.h |9 - drivers/pci/probe.c | 11 +++ include/linux/pci.h

[PATCH Part3 v11 2/9] PCI: Move pci_bus_assign_domain_nr() declaration into drivers/pci/pci.h

pci_bus_assign_domain_nr() is only called in probe.c, Move pci_bus_assign_domain_nr() declaration into drivers/pci/pci.h. Signed-off-by: Yijing Wang --- drivers/pci/pci.h |9 + include/linux/pci.h |6 -- 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a

[PATCH Part3 v11 5/9] powerpc/PCI: Rename pcibios_root_bridge_prepare() to pcibios_root_bus_prepare()

Pcibios_root_bridge_prepare() in powerpc set root bus speed, it's not the preparation for pci host bridge. For better separation of host bridge and root bus creation, It's need to rename it to another weak function. Signed-off-by: Yijing Wang --- arch/powerpc/include/asm/machdep.h

[PATCH Part3 v11 8/9] PCI: Remove platform specific pci_domain_nr()

Now pci_host_bridge holds the domain number, so we could eliminate all platform specific pci_domain_nr(). Signed-off-by: Yijing Wang --- arch/alpha/include/asm/pci.h |2 -- arch/ia64/include/asm/pci.h |1 - arch/microblaze/pci/pci-common.c | 11 --- arch/mips/include

[PATCH Part3 v11 4/9] PCI: Introduce pci_host_assign_domain_nr() to assign domain

Introduce pci_host_assign_domain_nr() to save domain number in 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

[PATCH Part3 v11 6/9] PCI: Make pci_host_bridge hold sysdata in drvdata

Now platform specific sysdata is saved in pci_bus, and pcibios_root_bridge_prepare() need to know the sysdata. Later, we would move pcibios_root_bridge_prepare() prior to root bus creation, so we need to make pci_host_bridge hold sysdata. Signed-off-by: Yijing Wang --- arch/ia64/pci/pci.c

[PATCH Part3 v11 1/9] PCI: Save domain in pci_host_bridge

, so we pass meaningless -1 as the domain number. Tested-by: Gregory CLEMENT #mvebu part Signed-off-by: Yijing Wang --- arch/alpha/kernel/pci.c|4 ++-- arch/alpha/kernel/sys_nautilus.c |2 +- arch/arm/kernel/bios32.c |2 +- arch/arm/mach-dove/pcie.c

[PATCH Part3 v11 0/9] Remove platform pci_domain_nr()

github.com/YijingWang/linux-pci.git enumer11 Yijing Wang (9): PCI: Save domain in pci_host_bridge PCI: Move pci_bus_assign_domain_nr() declaration into drivers/pci/pci.h PCI: Remove declaration for pci_get_new_domain_nr() PCI: Introduce pci_host_assign_domain_nr() to assign domain p

[PATCH Part3 v11 3/9] PCI: Remove declaration for pci_get_new_domain_nr()

pci_get_new_domain_nr() is only used in drivers/pci/pci.c, remove the declaration in include/linux/pci.h. Signed-off-by: Yijing Wang --- drivers/pci/pci.c |4 ++-- include/linux/pci.h |3 --- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/pci/pci.c b/drivers

[PATCH v1 05/21] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip

_chip() used in ARM platform, find the MSI chip by pci bus. Signed-off-by: Yijing Wang --- drivers/pci/msi.c |7 ++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index a77e7f7..539c11d 100644 --- a/drivers/pci/msi.c +++ b/driver

[PATCH v1 03/21] MSI: Remove the redundant irq_set_chip_data()

Currently, pcie-designware, pcie-rcar, pci-tegra drivers use irq chip_data to save the msi_chip pointer. They already call irq_set_chip_data() in their own MSI irq map functions. So irq_set_chip_data() in arch_setup_msi_irq() is useless. Signed-off-by: Yijing Wang --- drivers/pci/msi.c |2

[PATCH v1 04/21] x86/xen/MSI: Eliminate arch_msix_mask_irq() and arch_msi_mask_irq()

all platforms. Signed-off-by: Yijing Wang CC: Konrad Rzeszutek Wilk --- arch/x86/include/asm/apic.h |4 arch/x86/include/asm/x86_init.h |3 --- arch/x86/kernel/apic/io_apic.c |2 +- arch/x86/kernel/x86_init.c | 10 -- arch/x86/pci/xen.c |

[PATCH v1 00/21] Use MSI chip to configure MSI/MSI-X in all platforms

def to fix MSI bug in xen running in x86. Rename arch_get_match_msi_chip() to arch_find_msi_chip(). Drop use struct device as the msi_chip argument, we will do that later in another patchset. Yijing Wang (21): PCI/MSI: Clean up struct msi_chip a

[PATCH v1 10/21] x86/MSI: Remove unused MSI weak arch functions

Now we can clean up MSI weak arch functions in x86. Signed-off-by: Yijing Wang --- arch/x86/include/asm/pci.h |3 --- arch/x86/include/asm/x86_init.h |4 arch/x86/kernel/apic/io_apic.c |2 +- arch/x86/kernel/x86_init.c | 24 drivers/iommu

[PATCH v1 11/21] MIPS/Octeon/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/mips/pci/msi-octeon.c | 35 ++- 1 files changed, 22 insertions(+), 13 deletions(-) diff

[PATCH v1 09/21] Irq_remapping/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- drivers/iommu/irq_remapping.c |8 +++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/drivers/iommu

[PATCH v1 07/21] x86/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/x86/include/asm/pci.h |1 + arch/x86/kernel/apic/io_apic.c | 12 2 files changed, 13 insertions

[PATCH v1 06/21] PCI/MSI: Refactor struct msi_chip to make it become more common

. This patch add .restore_irq() and .setup_irqs() to make it become more common. Signed-off-by: Yijing Wang --- drivers/pci/msi.c | 15 +++ include/linux/msi.h |3 +++ 2 files changed, 18 insertions(+), 0 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index

[PATCH v1 08/21] x86/xen/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang CC: Konrad Rzeszutek Wilk --- arch/x86/pci/xen.c | 46 ++ 1 files changed, 30

[PATCH v1 16/21] s390/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/s390/pci/pci.c | 18 ++ 1 files changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/s390/pci

[PATCH v1 15/21] Powerpc/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/powerpc/kernel/msi.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[PATCH v1 02/21] PCI/MSI: Remove useless bus->msi assignment

Currently, PCI drivers will initialize bus->msi in pcibios_add_bus(). pcibios_add_bus() will be called in every pci bus initialization. So the bus->msi assignment in pci_alloc_child_bus() is useless. Signed-off-by: Yijing Wang CC: Thierry Reding CC: Thomas Petazzoni --- drivers/pci/p

[PATCH v1 17/21] arm/iop13xx/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/arm/mach-iop13xx/include/mach/pci.h |2 ++ arch/arm/mach-iop13xx/iq81340mc.c|1 + arch/arm/mach-iop13xx

[PATCH v1 19/21] Sparc/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/sparc/kernel/pci.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/sparc/kernel

[PATCH v1 13/21] MIPS/Xlp/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/mips/pci/msi-xlp.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/mips/pci/msi

[PATCH v1 18/21] IA64/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/ia64/kernel/msi_ia64.c | 18 ++ 1 files changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/ia64

[PATCH v1 12/21] MIPS/Xlp: Remove the dead function destroy_irq() to fix build error

nction 'destroy_irq'.. cc1: some warnings being treated as errors make[1]: *** [arch/mips/pci/msi-xlp.o] Error 1 make: *** [arch/mips/pci/] Error 2 Signed-off-by: Yijing Wang Cc: Thomas Gleixner --- arch/mips/pci/msi-xlp.c |4 +--- 1 files changed, 1 insertions(+), 3 deletions(-)

[PATCH v1 14/21] MIPS/Xlr/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/mips/pci/pci-xlr.c | 15 +-- 1 files changed, 13 insertions(+), 2 deletions(-) diff --git a/arch/mips/pci

[PATCH v1 21/21] PCI/MSI: Clean up unused MSI arch functions

Now we use struct msi_chip in all platforms to configure MSI/MSI-X. We can clean up the unused arch functions. Signed-off-by: Yijing Wang --- drivers/iommu/irq_remapping.c |2 +- drivers/pci/msi.c | 99 - include/linux/msi.h

[PATCH v1 20/21] tile/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/tile/kernel/pci_gx.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/tile

[PATCH v1 01/21] PCI/MSI: Clean up struct msi_chip argument

Msi_chip functions setup_irq/teardown_irq rarely use msi_chip argument. We can look up msi_chip pointer by the device pointer or irq number, so clean up msi_chip argument. Signed-off-by: Yijing Wang CC: Thierry Reding CC: Thomas Petazzoni --- drivers/irqchip/irq-armada-370-xp.c | 12

Re: [Xen-devel] [PATCH v1 08/21] x86/xen/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/5 22:29, David Vrabel wrote: > On 05/09/14 11:09, Yijing Wang wrote: >> Use MSI chip framework instead of arch MSI functions to configure >> MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. > [...] >> --- a/arch/x86/pci/xen.c >

Re: [Xen-devel] [PATCH v1 04/21] x86/xen/MSI: Eliminate arch_msix_mask_irq() and arch_msi_mask_irq()

On 2014/9/10 20:36, David Vrabel wrote: > On 05/09/14 11:09, Yijing Wang wrote: >> Commit 0e4ccb150 added two __weak arch functions arch_msix_mask_irq() >> and arch_msi_mask_irq() to fix a bug found when running xen in x86. >> Introduced these two funcntions make MSI code com

Re: [Xen-devel] [PATCH v1 08/21] x86/xen/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/10 20:38, David Vrabel wrote: > On 09/09/14 03:06, Yijing Wang wrote: >> On 2014/9/5 22:29, David Vrabel wrote: >>> On 05/09/14 11:09, Yijing Wang wrote: >>>> Use MSI chip framework instead of arch MSI functions to configure >>>> MSI/MSI-X irq. S

Re: [Xen-devel] [PATCH v1 08/21] x86/xen/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/10 22:59, Konrad Rzeszutek Wilk wrote: > On Wed, Sep 10, 2014 at 01:38:25PM +0100, David Vrabel wrote: >> On 09/09/14 03:06, Yijing Wang wrote: >>> On 2014/9/5 22:29, David Vrabel wrote: >>>> On 05/09/14 11:09, Yijing Wang wrote: >>>>> Use MSI

Re: [PATCH v1 03/21] MSI: Remove the redundant irq_set_chip_data()

On 2014/9/15 22:00, Lucas Stach wrote: > Am Freitag, den 05.09.2014, 18:09 +0800 schrieb Yijing Wang: >> Currently, pcie-designware, pcie-rcar, pci-tegra drivers >> use irq chip_data to save the msi_chip pointer. They >> already call irq_set_chip_data() in their own MSI irq

Re: [PATCH v1 05/21] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip

On 2014/9/15 22:42, Lucas Stach wrote: > Am Freitag, den 05.09.2014, 18:09 +0800 schrieb Yijing Wang: >> Introduce weak arch_find_msi_chip() to find the match msi_chip. >> Currently, MSI chip associates pci bus to msi_chip. Because in >> ARM platform, there may be more than

Re: [PATCH v1 06/21] PCI/MSI: Refactor struct msi_chip to make it become more common

On 2014/9/15 22:44, Lucas Stach wrote: > Am Freitag, den 05.09.2014, 18:09 +0800 schrieb Yijing Wang: >> Now there are a lot of __weak arch functions in MSI code. >> These functions make MSI driver complex. Thierry Reding Introduced >> a new MSI chip framework to configure

Re: [PATCH v1 21/21] PCI/MSI: Clean up unused MSI arch functions

On 2014/9/15 22:47, Lucas Stach wrote: > Am Freitag, den 05.09.2014, 18:10 +0800 schrieb Yijing Wang: >> Now we use struct msi_chip in all platforms to configure >> MSI/MSI-X. We can clean up the unused arch functions. >> >> Signed-off-by: Yijing Wang > >

Re: [PATCH v1 15/21] Powerpc/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/16 13:28, Michael Ellerman wrote: > On Fri, 2014-09-05 at 18:10 +0800, Yijing Wang wrote: >> Use MSI chip framework instead of arch MSI functions to configure >> MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. >> >> Signed-off-by: Yijing

Re: [PATCH v2 5/5] MSI: Use __read_msi_msg() instead of read_msi_msg()

On 2014/9/16 14:34, Michael Ellerman wrote: > On Fri, 2014-08-22 at 16:08 +0800, Yijing Wang wrote: >> Read_msi_msg() only be called in rtas_setup_msi_irqs(), >> use __read_msi_msg() instead of read_msi_msg for >> simplification. And rename __read_msi_msg() to >> read_

Re: [PATCH v1 03/21] MSI: Remove the redundant irq_set_chip_data()

>>> arch_teardown_msi_irq() expects to find the msi_chip in the irq >>> chip_data field. As this means drivers don't have any reasonable other >>> possibility to stuff things into this field, I think it would make sense >>> to do the cleanup the other way around: keep the irq_set_chip_data >>> arch

Re: [PATCH v1 16/21] s390/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/16 19:35, Sebastian Ott wrote: > Hello, > > On Fri, 5 Sep 2014, Yijing Wang wrote: >> Use MSI chip framework instead of arch MSI functions to configure >> MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. >> >> Signed-off-by: Yiji

[PATCH v3 7/9] MSI/powerpc: Use __read_msi_msg() instead of read_msi_msg()

Read_msi_msg() only be called in rtas_setup_msi_irqs(), use __read_msi_msg() instead of read_msi_msg for simplification. Signed-off-by: Yijing Wang Acked-by: Michael Ellerman CC: Benjamin Herrenschmidt CC: linuxppc-dev@lists.ozlabs.org --- arch/powerpc/platforms/pseries/msi.c |2 +- 1

[PATCH v4 1/3] MSI/powerpc: Use __read_msi_msg() instead of read_msi_msg()

Read_msi_msg() only be called in rtas_setup_msi_irqs(), use __read_msi_msg() instead of read_msi_msg for simplification. Signed-off-by: Yijing Wang Acked-by: Michael Ellerman CC: Benjamin Herrenschmidt CC: linuxppc-dev@lists.ozlabs.org --- arch/powerpc/platforms/pseries/msi.c |2 +- 1

Re: [PATCH v1 00/21] Use MSI chip to configure MSI/MSI-X in all platforms

On 2014/9/24 5:09, Bjorn Helgaas wrote: > On Fri, Sep 05, 2014 at 06:09:45PM +0800, Yijing Wang wrote: >> This series is based Bjorn's pci-next branch + Alexander Gordeev's two >> patches >> "Remove arch_msi_check_device()" link: https://lkml.org/lkml/2014

[PATCH v2 07/22] PCI/MSI: Refactor struct msi_chip to make it become more common

. This patch add .restore_irq() and .setup_irqs() to make it become more common. Signed-off-by: Yijing Wang Reviewed-by: Lucas Stach --- drivers/pci/msi.c | 15 +++ include/linux/msi.h |3 +++ 2 files changed, 18 insertions(+), 0 deletions(-) diff --git a/drivers/pci/msi.c b

[PATCH v2 06/22] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip

_chip() used in ARM platform, find the MSI chip by pci bus. Signed-off-by: Yijing Wang --- drivers/pci/msi.c |7 ++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 5f8f3af..3acbe65 100644 --- a/drivers/pci/msi.c +++ b/driver

[PATCH v2 05/22] s390/MSI: Use __msi_mask_irq() instead of default_msi_mask_irq()

Now only s390/MSI use default_msi_mask_irq() and default_msix_mask_irq(), replace them with the common msi mask irq functions __msi_mask_irq() and __msix_mask_irq(). Remove default_msi_mask_irq() and default_msix_mask_irq(). Signed-off-by: Yijing Wang --- arch/s390/pci/pci.c |4

[PATCH v2 02/22] PCI/MSI: Remove useless bus->msi assignment

Currently, PCI drivers will initialize bus->msi in pcibios_add_bus(). pcibios_add_bus() will be called in every pci bus initialization. So the bus->msi assignment in pci_alloc_child_bus() is useless. Signed-off-by: Yijing Wang CC: Thierry Reding CC: Thomas Petazzoni --- drivers/pci/p

[PATCH v2 10/22] Irq_remapping/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- drivers/iommu/irq_remapping.c |6 ++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/iommu

[PATCH v2 09/22] x86/xen/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Tested-by: Konrad Rzeszutek Wilk Signed-off-by: Yijing Wang Acked-by: David Vrabel Reviewed-by: Konrad Rzeszutek Wilk CC: Konrad Rzeszutek Wilk --- arch

[PATCH v2 01/22] PCI/MSI: Clean up struct msi_chip argument

Msi_chip functions setup_irq/teardown_irq rarely use msi_chip argument. We can look up msi_chip pointer by the device pointer or irq number, so clean up msi_chip argument. Signed-off-by: Yijing Wang CC: Thierry Reding CC: Thomas Petazzoni --- drivers/irqchip/irq-armada-370-xp.c |8

[PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

et_match_msi_chip() to arch_find_msi_chip(). Drop use struct device as the msi_chip argument, we will do that later in another patchset. Yijing Wang (22): PCI/MSI: Clean up struct msi_chip argument PCI/MSI: Remove useless bus->msi assignment MSI: Remove the redundant irq_set_chip_data() x86

[PATCH v2 13/22] MIPS/Xlp: Remove the dead function destroy_irq() to fix build error

nction 'destroy_irq'.. cc1: some warnings being treated as errors make[1]: *** [arch/mips/pci/msi-xlp.o] Error 1 make: *** [arch/mips/pci/] Error 2 Signed-off-by: Yijing Wang Cc: Thomas Gleixner --- arch/mips/pci/msi-xlp.c |4 +--- 1 files changed, 1 insertions(+), 3 deletions(-)

[PATCH v2 11/22] x86/MSI: Remove unused MSI weak arch functions

Now we can clean up MSI weak arch functions in x86. Signed-off-by: Yijing Wang --- arch/x86/include/asm/pci.h |3 --- arch/x86/include/asm/x86_init.h |4 arch/x86/kernel/apic/io_apic.c |2 +- arch/x86/kernel/x86_init.c | 24 drivers/iommu

[PATCH v2 14/22] MIPS/Xlp/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/mips/pci/msi-xlp.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/mips/pci/msi

[PATCH v2 04/22] x86/xen/MSI: Eliminate arch_msix_mask_irq() and arch_msi_mask_irq()

all platforms. Keep default_msi_mask_irq() and default_msix_mask_irq() in linux/msi.h to make s390 MSI code compile happy, they wiil be removed in the later patch. Tested-by: Konrad Rzeszutek Wilk Signed-off-by: Yijing Wang Acked-by: David Vrabel Reviewed-by: Konrad Rzeszutek Wilk CC: Konrad Rzeszu

[PATCH v2 03/22] MSI: Remove the redundant irq_set_chip_data()

Currently, pcie-designware, pcie-rcar, pci-tegra drivers use irq chip_data to save the msi_chip pointer. They already call irq_set_chip_data() in their own MSI irq map functions. So irq_set_chip_data() in arch_setup_msi_irq() is useless. Signed-off-by: Yijing Wang --- drivers/pci/msi.c |5

[PATCH v2 16/22] Powerpc/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang Acked-by: Michael Ellerman --- arch/powerpc/kernel/msi.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions

[PATCH v2 12/22] MIPS/Octeon/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/mips/pci/msi-octeon.c | 35 ++- 1 files changed, 22 insertions(+), 13 deletions(-) diff

[PATCH v2 18/22] arm/iop13xx/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/arm/mach-iop13xx/include/mach/pci.h |2 ++ arch/arm/mach-iop13xx/iq81340mc.c|1 + arch/arm/mach-iop13xx

[PATCH v2 15/22] MIPS/Xlr/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/mips/pci/pci-xlr.c | 15 +-- 1 files changed, 13 insertions(+), 2 deletions(-) diff --git a/arch/mips/pci

[PATCH v2 17/22] s390/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang Acked-by: Sebastian Ott --- arch/s390/pci/pci.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff

[PATCH v2 19/22] IA64/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/ia64/kernel/msi_ia64.c | 18 ++ 1 files changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/ia64

[PATCH v2 20/22] Sparc/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/sparc/kernel/pci.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/sparc/kernel

[PATCH v2 21/22] tile/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/tile/kernel/pci_gx.c | 14 -- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/tile

[PATCH v2 22/22] PCI/MSI: Clean up unused MSI arch functions

Now we use struct msi_chip in all platforms to configure MSI/MSI-X. We can clean up the unused arch functions. Signed-off-by: Yijing Wang Reviewed-by: Lucas Stach --- drivers/iommu/irq_remapping.c |2 +- drivers/pci/msi.c | 100 +++- include

[PATCH v2 08/22] x86/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/x86/include/asm/pci.h |1 + arch/x86/kernel/apic/io_apic.c | 12 2 files changed, 13 insertions

Re: [PATCH v2 02/22] PCI/MSI: Remove useless bus->msi assignment

On 2014/9/25 15:06, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:12AM +0800, Yijing Wang wrote: >> Currently, PCI drivers will initialize bus->msi in >> pcibios_add_bus(). pcibios_add_bus() will be called >> in every pci bus initialization. So the b

Re: [PATCH v2 01/22] PCI/MSI: Clean up struct msi_chip argument

On 2014/9/25 15:15, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:11AM +0800, Yijing Wang wrote: >> Msi_chip functions setup_irq/teardown_irq rarely use msi_chip >> argument. > > That's not true. Out of the four drivers that you modify two use the > para

Re: [PATCH v2 03/22] MSI: Remove the redundant irq_set_chip_data()

On 2014/9/25 15:19, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:13AM +0800, Yijing Wang wrote: >> Currently, pcie-designware, pcie-rcar, pci-tegra drivers >> use irq chip_data to save the msi_chip pointer. They >> already call irq_set_chip_data() in their own MSI irq

Re: [PATCH v2 06/22] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip

On 2014/9/25 15:26, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:16AM +0800, Yijing Wang wrote: >> Introduce weak arch_find_msi_chip() to find the match msi_chip. >> Currently, MSI chip associates pci bus to msi_chip. Because in >> ARM platform, there may be more th

Re: [PATCH v2 12/22] MIPS/Octeon/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/25 15:34, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:22AM +0800, Yijing Wang wrote: > [...] >> diff --git a/arch/mips/pci/msi-octeon.c b/arch/mips/pci/msi-octeon.c > [...] >> @@ -132,12 +132,12 @@ msi_irq_allocated: >> /* Make sure the sear

Re: [PATCH v2 14/22] MIPS/Xlp/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/25 15:36, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:24AM +0800, Yijing Wang wrote: >> Use MSI chip framework instead of arch MSI functions to configure >> MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. > > Nit: s/irq/IRQ/ in the ab

Re: [PATCH v2 17/22] s390/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/25 15:38, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:27AM +0800, Yijing Wang wrote: > [...] >> diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c > [...] >> @@ -358,7 +358,7 @@ static void zpci_irq_handler(struct airq_struct *airq) >>

Re: [PATCH v2 01/22] PCI/MSI: Clean up struct msi_chip argument

On 2014/9/25 18:20, Thomas Gleixner wrote: > On Thu, 25 Sep 2014, Thierry Reding wrote: > >> On Thu, Sep 25, 2014 at 11:14:11AM +0800, Yijing Wang wrote: >>> Msi_chip functions setup_irq/teardown_irq rarely use msi_chip >>> argument. >> >> That's no

Re: [PATCH v2 15/22] MIPS/Xlr/MSI: Use MSI chip framework to configure MSI/MSI-X irq

On 2014/9/25 15:37, Thierry Reding wrote: > On Thu, Sep 25, 2014 at 11:14:25AM +0800, Yijing Wang wrote: > [...] >> diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c > [...] >> @@ -214,11 +214,11 @@ static int get_irq_vector(const struct pci_dev *dev)

Re: [PATCH v2 06/22] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip

On 2014/9/25 18:38, Thomas Gleixner wrote: > On Thu, 25 Sep 2014, Yijing Wang wrote: > >> Introduce weak arch_find_msi_chip() to find the match msi_chip. >> Currently, MSI chip associates pci bus to msi_chip. Because in >> ARM platform, there may be more than one

Re: [PATCH v2 06/22] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip

On 2014/9/25 18:38, Thomas Gleixner wrote: > On Thu, 25 Sep 2014, Yijing Wang wrote: > >> Introduce weak arch_find_msi_chip() to find the match msi_chip. >> Currently, MSI chip associates pci bus to msi_chip. Because in >> ARM platform, there may be more than one

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

On 2014/9/25 22:23, Konrad Rzeszutek Wilk wrote: > On Thu, Sep 25, 2014 at 11:14:10AM +0800, Yijing Wang wrote: >> This series is based Bjorn's pci/msi branch >> git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/msi > > Is there a git tree for these p

Re: [PATCH v2 04/22] x86/xen/MSI: Eliminate arch_msix_mask_irq() and arch_msi_mask_irq()

On 2014/9/25 22:33, Konrad Rzeszutek Wilk wrote: > On Thu, Sep 25, 2014 at 11:14:14AM +0800, Yijing Wang wrote: >> Commit 0e4ccb150 added two __weak arch functions arch_msix_mask_irq() >> and arch_msi_mask_irq() to fix a bug found when running xen in x86. >> Introduced thes

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

>> I am actually in disagreement with you, Thierry. I don't like the general >> direction >> of the patches, or at least I don't like the fact that we don't have a >> portable >> way of setting up the msi_chip without having to rely on weak architectural >> hooks. > > Oh, good. That's actually

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

>> The PCI core can already deal with that. An MSI chip can be set per bus >> and the weak pcibios_add_bus() can be used to set that. Often it might >> not even be necessary to do it via pcibios_add_bus() if you create the >> root bus directly, since you can attach the MSI chip at that time. > > B

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

What I would like to see is a way of creating the pci_host_bridge structure outside the pci_create_root_bus(). That would then allow us to pass this sort of platform details like associated msi_chip into the host bridge and the child busses will have an easy wa

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

On 2014/9/26 17:05, Thierry Reding wrote: > On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: > [...] >> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >> directly (patch attached). > > Really attached this time. > > Thierry > It looks good to me, so I

Re: [PATCH v2 06/22] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip

>> MSI chip in this series is to setup MSI irq, including IRQ allocation, Map, >> compose MSI msg ..., in different platform, many arch specific MSI irq >> details in it. >> It's difficult to extract the common data and code. >> >> I have a plan to rework MSI related irq_chips in kernel, PCI and N

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

On 2014/9/28 10:32, Yijing Wang wrote: > On 2014/9/26 17:05, Thierry Reding wrote: >> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >> [...] >>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus() >>> directly (patch

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

On 2014/9/28 19:21, Liviu Dudau wrote: > On Sun, Sep 28, 2014 at 10:16:12AM +0800, Yijing Wang wrote: >>>>>> What I would like to see is a way of creating the pci_host_bridge >>>>>> structure outside >>>>>> the pci_create_root_bus(). That

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

>>> Not necessarily. What I have in mind is something like this: >> >> This is a good idea, what I'm worried is this series is already large, so I >> think we need to post >> another series to do it. > > I wasn't asking to do it here, I was just offering a suggestion (and sharing > some experien

Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

On 2014/9/29 16:37, Lucas Stach wrote: > Am Sonntag, den 28.09.2014, 14:11 +0800 schrieb Yijing Wang: >> On 2014/9/28 10:32, Yijing Wang wrote: >>> On 2014/9/26 17:05, Thierry Reding wrote: >>>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote: >&

[PATCH v3 03/27] s390/MSI: Use __msi_mask_irq() instead of default_msi_mask_irq()

Now only s390/MSI use default_msi_mask_irq() and default_msix_mask_irq(), replace them with the common msi mask irq functions __msi_mask_irq() and __msix_mask_irq(). Remove default_msi_mask_irq() and default_msix_mask_irq(). Signed-off-by: Yijing Wang --- arch/s390/pci/pci.c |4

[PATCH v3 05/27] PCI: tegra: Save msi chip in pci_sys_data

Save msi chip in pci_sys_data instead of assign msi chip to every pci bus in .add_bus(). Signed-off-by: Yijing Wang --- drivers/pci/host/pci-tegra.c | 13 +++-- 1 files changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c

[PATCH v3 01/27] MSI: Remove the redundant irq_set_chip_data()

-off-by: Yijing Wang Reviewed-by: Thierry Reding --- drivers/pci/msi.c |5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 2f7c92c..ecb92a5 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -41,14 +41,13 @@ int __weak

[PATCH v3 12/27] x86/MSI: Use MSI chip framework to configure MSI/MSI-X irq

Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/x86/include/asm/pci.h | 13 + arch/x86/kernel/apic/io_apic.c | 19 +++ arch/x86/pci

[PATCH v3 09/27] arm/PCI: Clean unused pcibios_add_bus() and pcibios_remove_bus()

MSI chip will be saved in pci_sys_data, now we can clean up pcibios_add_bus() and pcibios_remove_bus() in arm, and use pci_find_msi_chip() to get msi chip in core MSI code. Signed-off-by: Yijing Wang --- arch/arm/include/asm/mach/pci.h |4 arch/arm/kernel/bios32.c| 16

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