linux.git/drivers/irqchip/Kconfig, branch master

irqchip: Remove obsolete config ARM_GIC_V3_ITS_PCI

2024-10-02T13:08:12+00:00

Commit b5712bf89b4b ("irqchip/gic-v3-its: Provide MSI parent for
PCI/MSI[-X]") moves the functionality of irq-gic-v3-its-pci-msi.c into
irq-gic-v3-its-msi-parent.c, and drops the former file.

With that, the config option ARM_GIC_V3_ITS_PCI is obsolete, but the
definition of that config was not removed in the commit above.

Remove this obsolete config ARM_GIC_V3_ITS_PCI.

Signed-off-by: Lukas Bulwahn 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20240926125502.363364-1-lukas.bulwahn@redhat.com

irqchip/loongson-pch-msi: Switch to MSI parent domains

2024-08-20T15:13:40+00:00

Remove the global PCI/MSI irqdomain implementation and provide the
required MSI parent functionality by filling in msi_parent_ops, so the
PCI/MSI code can detect the new parent and setup per-device MSI domains.

Signed-off-by: Huacai Chen 
Signed-off-by: Tianyang Zhang 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20240815112608.26925-2-zhangtianyang@loongson.cn

Merge tag 'irq-msi-2024-07-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2024-07-22T21:02:19+00:00

Pull MSI interrupt updates from Thomas Gleixner:
 "Switch ARM/ARM64 over to the modern per device MSI domains.

  This simplifies the handling of platform MSI and wire to MSI
  controllers and removes about 500 lines of legacy code.

  Aside of that it paves the way for ARM/ARM64 to utilize the dynamic
  allocation of PCI/MSI interrupts and to support the upcoming non
  standard IMS (Interrupt Message Store) mechanism on PCIe devices"

* tag 'irq-msi-2024-07-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
  irqchip/gic-v3-its: Correctly fish out the DID for platform MSI
  irqchip/gic-v3-its: Correctly honor the RID remapping
  genirq/msi: Move msi_device_data to core
  genirq/msi: Remove platform MSI leftovers
  irqchip/irq-mvebu-icu: Remove platform MSI leftovers
  irqchip/irq-mvebu-sei: Switch to MSI parent
  irqchip/mvebu-odmi: Switch to parent MSI
  irqchip/mvebu-gicp: Switch to MSI parent
  irqchip/irq-mvebu-icu: Prepare for real per device MSI
  irqchip/imx-mu-msi: Switch to MSI parent
  irqchip/gic-v2m: Switch to device MSI
  irqchip/gic_v3_mbi: Switch over to parent domain
  genirq/msi: Remove platform_msi_create_device_domain()
  irqchip/mbigen: Remove platform_msi_create_device_domain() fallback
  irqchip/gic-v3-its: Switch platform MSI to MSI parent
  irqchip/irq-msi-lib: Prepare for DOMAIN_BUS_WIRED_TO_MSI
  irqchip/mbigen: Prepare for real per device MSI
  irqchip/irq-msi-lib: Prepare for DEVICE MSI to replace platform MSI
  irqchip/gic-v3-its: Provide MSI parent for PCI/MSI[-X]
  irqchip/irq-msi-lib: Prepare for PCI MSI/MSIX
  ...

irqchip/mvebu-odmi: Switch to parent MSI

2024-07-18T18:31:21+00:00

All platform MSI users and the PCI/MSI code handle per device MSI domains
when the irqdomain associated to the device provides MSI parent
functionality.

Remove the "global" platform domain related code and provide the MSI parent
functionality by filling in msi_parent_ops.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Anna-Maria Behnsen 
Signed-off-by: Shivamurthy Shastri 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/r/20240623142235.759892514@linutronix.de

irqchip/mvebu-gicp: Switch to MSI parent

2024-07-18T18:31:20+00:00

All platform MSI users and the PCI/MSI code handle per device MSI domains
when the irqdomain associated to the device provides MSI parent
functionality.

Remove the "global" platform domain related code and provide the MSI parent
functionality by filling in msi_parent_ops.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Anna-Maria Behnsen 
Signed-off-by: Shivamurthy Shastri 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/r/20240623142235.699780279@linutronix.de

irqchip/imx-mu-msi: Switch to MSI parent

2024-07-18T18:31:20+00:00

All platform MSI users and the PCI/MSI code handle per device MSI domains
when the irqdomain associated to the device provides MSI parent
functionality.

Remove the "global" platform domain related code and provide the MSI parent
functionality by filling in msi_parent_ops.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Anna-Maria Behnsen 
Signed-off-by: Shivamurthy Shastri 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/r/20240623142235.574932935@linutronix.de

irqchip/gic-v2m: Switch to device MSI

2024-07-18T18:31:20+00:00

All platform MSI users and the PCI/MSI code handle per device MSI domains
when the irqdomain associated to the device provides MSI parent
functionality.

Remove the "global" PCI/MSI and platform domain related code and provide
the MSI parent functionality by filling in msi_parent_ops.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Anna-Maria Behnsen 
Signed-off-by: Shivamurthy Shastri 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/r/20240623142235.514419280@linutronix.de

irqchip/gic-v3-its: Provide MSI parent infrastructure

2024-07-18T18:31:19+00:00

To support per device MSI domains the ITS must provide MSI parent domain
functionality.

Provide the basic skeleton for this:

   - msi_parent_ops
   - child domain init callback
   - the MSI parent flag set in irqdomain::flags

This does not make ITS a functional parent domain as there is no bit set in
the bus_select_mask yet, but it provides the base to implement PCI and
platform MSI support gradually on top.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Anna-Maria Behnsen 
Signed-off-by: Shivamurthy Shastri 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/r/20240623142234.903076277@linutronix.de

irqchip: Provide irq-msi-lib

2024-07-18T18:31:19+00:00

All irqdomains which provide MSI parent domain functionality for per device
MSI domains need to provide a select() callback for the irqdomain and a
function to initialize the child domain.

Most of these functions would just be copy&paste with minimal
modifications, so provide a library function which implements the required
functionality and is customizable via parent_domain::msi_parent_ops. The
check for the supported bus tokens in msi_lib_init_dev_msi_info() is
expanded step by step within the next patches.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Anna-Maria Behnsen 
Signed-off-by: Shivamurthy Shastri 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/r/20240623142234.840975799@linutronix.de

Revert "irqchip/dw-apb-ictl: Support building as module"

2024-06-25T19:30:48+00:00

This reverts commit 7cc4f309c933ec5d64eea31066fe86bbf9e48819.

Causes build fails.

Reported-by: Mark Brown 
Reported-by: kernel test robot 
Signed-off-by: Thomas Gleixner 
Cc: Jisheng Zhang 
https://lore.kernel.org/oe-kbuild-all/202406250214.WZEjWnnU-lkp@intel.com/