Introduce a new struct msi_chip apic_msi_chip instead of weak arch
functions to configure MSI/MSI-X in x86.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/x86/include/asm/pci.h |1 +
arch/x86/kernel/apic/io_apic.c | 20
2 files changed, 17 insertions(+),
Currently, pcie-designware, pcie-rcar, pci-tegra drivers
use irq chip_data to 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 wangyij...@huawei.com
---
This series is mainly to use msi_chip instead of currently weak arch functions
across all platforms. Also clean up current MSI code and make drivers support
MSI easier.
Yijing Wang (20):
x86/xen/MSI: Eliminate arch_msix_mask_irq() and arch_msi_mask_irq()
MSI: Clean up struct msi_chip
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 complex. This patch
reverted commit 0e4ccb150 and add #ifdef for x86 msi_chip to fix this
bug for simplicity. Also
Introduce __weak arch_get_match_msi_chip() to find the match msi_chip.
We prepare to use struct msi_chip to eliminate arch_xxx functions
in all platforms. The MSI device and the msi_chip binding is platform
specific. For instance, in x86, LAPICs receive all MSI irq, but in
arm, PCI device usually
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 wangyij...@huawei.com
CC: Thierry Reding
Now there are a lot of __weak arch functions in MSI code.
These functions make MSI driver complex, It's time to
refactor it. Add .restore_irq(), .setup_irqs(), .teardown_irqs()
to make msi_chip common across all platforms.
Also replace the argument struct pci_dev with struct device
to support
Msi_chip functions setup_irq/teardown_irq/check_device rarely
use msi_chip argument. We can get msi_chip pointer from the
device pointer or irq number, so clean up msi_chip arguments.
This patch is also preparation for using msi_chip in all
platforms to setup/teardown MSI irqs.
Signed-off-by:
Now we can clean up MSI weak arch functions in x86.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/x86/include/asm/pci.h |3 ---
arch/x86/kernel/apic/io_apic.c |2 +-
arch/x86/kernel/x86_init.c | 24
3 files changed, 1 insertions(+), 28
Introduce a new struct msi_chip xlp_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/mips/pci/msi-xlp.c | 15 +--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/arch/mips/pci/msi-xlp.c
Introduce a new struct msi_chip xen_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
CC: Konrad Rzeszutek Wilk konrad.w...@oracle.com
---
arch/x86/pci/xen.c | 128 +--
1 files
Introduce a new struct msi_chip xlr_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/mips/pci/pci-xlr.c | 19 +++
1 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/arch/mips/pci/pci-xlr.c
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 wangyij...@huawei.com
---
drivers/pci/msi.c | 82
1 files changed, 32 insertions(+), 50 deletions(-)
Introduce a new struct msi_chip octeon_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/mips/pci/msi-octeon.c | 45 ++-
1 files changed, 19 insertions(+), 26 deletions(-)
diff
Introduce a new struct msi_chip iop13xx_msi_chip instead of weak arch
functions to configure MSI/MSI-X. And associate the pci bus with msi_chip
in pcibios_add_bus().
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/arm/mach-iop13xx/include/mach/pci.h |2 ++
Introduce a new struct msi_chip ia64_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/ia64/kernel/msi_ia64.c | 18 ++
1 files changed, 14 insertions(+), 4 deletions(-)
diff --git
Introduce a new struct msi_chip zpci_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/s390/pci/pci.c | 16 ++--
1 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/arch/s390/pci/pci.c
Introduce a new struct msi_chip tile_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/tile/kernel/pci_gx.c | 20 +++-
1 files changed, 15 insertions(+), 5 deletions(-)
diff --git
Introduce a new struct msi_chip remap_msi_chip instead of weak arch
functions to configure irq remapping MSI/MSI-X in x86.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
drivers/iommu/irq_remapping.c | 13 +
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git
Introduce a new struct msi_chip sparc_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/sparc/kernel/pci.c | 18 ++
1 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/arch/sparc/kernel/pci.c
Introduce a new struct msi_chip ppc_msi_chip instead of weak arch
functions to configure MSI/MSI-X.
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
arch/powerpc/kernel/msi.c | 23 +--
1 files changed, 17 insertions(+), 6 deletions(-)
diff --git
On 08/05/2014 11:37 PM, Scott Wood wrote:
On Tue, 2014-08-05 at 15:52 +0200, Martijn de Gouw wrote:
Add support for mapping and unmapping of inbound rapidio windows.
Signed-off-by: Martijn de Gouw martijn.de.g...@prodrive-technologies.com
Could you elaborate in the changelog on what this
On 11 August 2014 11:32, Ulf Hansson ulf.hans...@linaro.org wrote:
On 11 August 2014 11:15, Pawel Moll pawel.m...@arm.com wrote:
On Mon, 2014-08-11 at 10:07 +0100, Ulf Hansson wrote:
On 8 August 2014 18:36, Pawel Moll pawel.m...@arm.com wrote:
On Fri, 2014-07-25 at 15:23 +0100, Pawel Moll
As opal_message_init() uses machine_early_initcall(powernv, ), and
opal_hmi_handler_init() depends on that early initcall, so it also needs
use machine_* to check the machine_id.
Signed-off-by: Li Zhong zh...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-hmi.c | 3 ++-
1 file
On 12/08/14 08:25, 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 complex. This patch
reverted commit 0e4ccb150 and add #ifdef for x86
The code selecting a device for the sdhci host has been
continuously tweaked (4b711cb13843f5082e82970dd1e8031383134a65
mmc: sdhci-pltfm: Add structure for host-specific data and
a4d2177f00a5252d825236c5124bc1e9918bdb41 mmc: sdhci-pltfm: dt
device does not pass parent to sdhci_alloc_host while
On 2014/8/12 17:09, David Vrabel wrote:
On 12/08/14 08:25, 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 complex. This patch
reverted
On 12.08.14 07:17, Madhavan Srinivasan wrote:
On Monday 11 August 2014 02:45 PM, Alexander Graf wrote:
On 11.08.14 10:51, Benjamin Herrenschmidt wrote:
On Mon, 2014-08-11 at 09:26 +0200, Alexander Graf wrote:
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index
On Tuesday 12 August 2014 04:49 PM, Alexander Graf wrote:
On 12.08.14 07:17, Madhavan Srinivasan wrote:
On Monday 11 August 2014 02:45 PM, Alexander Graf wrote:
On 11.08.14 10:51, Benjamin Herrenschmidt wrote:
On Mon, 2014-08-11 at 09:26 +0200, Alexander Graf wrote:
diff --git
On 12 August 2014 12:37, Pawel Moll pawel.m...@arm.com wrote:
The code selecting a device for the sdhci host has been
continuously tweaked (4b711cb13843f5082e82970dd1e8031383134a65
mmc: sdhci-pltfm: Add structure for host-specific data and
a4d2177f00a5252d825236c5124bc1e9918bdb41 mmc:
Hello,
i am currently working on a GE PPC9A board which has a MPC8641D processor.
My work on this board is currently based on the yocto project (where i also
put this issue on the mailinglist) but the issue affects mainly the
kernel's SMP feature so i want to share this issue here as well and
On 08/10/2014 09:19 PM, Benjamin Herrenschmidt wrote:
On Wed, 2014-07-30 at 00:31 -0700, tip-bot for John Stultz wrote:
Commit-ID: 953dec21aed4038464fec02f96a2f1b8701a5bce
Gitweb:
http://git.kernel.org/tip/953dec21aed4038464fec02f96a2f1b8701a5bce
Author: John Stultz
On Tue, Aug 12, 2014 at 03:26:00PM +0800, Yijing Wang wrote:
Introduce a new struct msi_chip apic_msi_chip instead of weak arch
functions to configure MSI/MSI-X in x86.
Why not 'x86_msi_ops' (see arch/x86/kernel/x86_init.c)
Signed-off-by: Yijing Wang wangyij...@huawei.com
---
On Mon, 11 Aug 2014 11:13:32 +1000 Benjamin Herrenschmidt
b...@kernel.crashing.org wrote:
On Sat, 2014-08-09 at 11:15 +0530, Vasant Hegde wrote:
Ben,
- This patchset applies cleanly on powerpc next branch.
- Andrew Morton suggested to include this patch in powerpc tree.
On 2014/8/13 3:09, Konrad Rzeszutek Wilk wrote:
On Tue, Aug 12, 2014 at 03:26:00PM +0800, Yijing Wang wrote:
Introduce a new struct msi_chip apic_msi_chip instead of weak arch
functions to configure MSI/MSI-X in x86.
Why not 'x86_msi_ops' (see arch/x86/kernel/x86_init.c)
Hi Konrad, I think
On Tue, Aug 12, 2014 at 08:30:40AM -0700, John Stultz wrote:
Thanks for pointing it out. I'll send a fix here shortly (though I only
have the ppc64le toolchain handy, so forgive me if its not quite right).
/me pimps the kernel.org toolchains:
fc95ca7284bc54953165cba76c3228bd2cdb9591 claims that there is no
functional change but this is not true as it calls get_order() (which
takes bytes) where it should have called ilog2() and the kernel stops
on VM_BUG_ON().
This replaces get_order() with ilog2().
Suggested-by: Paul Mackerras
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