fsl-mc: Move over to device MSI infrastructure

[PATCH v2 0/6] fsl-mc: Move over to device MSI infrastructure

Posted by Marc Zyngier 1 month, 3 weeks ago

This is the second drop of this cleanup series for the fsl-mc MSI
infrastructure, initially posted at [1].

* From v1 [1]:

  - Drop the now unused DOMAIN_BUS_FSL_MC_MSI bus token

  - Tidy-up fsl_mc_write_msi_msg() while removing the legacy helper

  - Fix include ordering in irq-gic-its-msi-parent.c

  - Various commit message cleanups

  - Collected tags from Ioana and Sascha, with thanks

  - Rebased on top of v7.0.rc1

[1] https://lore.kernel.org/r/20260218135203.2267907-1-maz@kernel.org

Marc Zyngier (6):
  fsl-mc: Remove MSI domain propagation to sub-devices
  fsl-mc: Add minimal infrastructure to use platform MSI
  irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent
    handling
  fsl-mc: Switch over to per-device platform MSI
  fsl-mc: Remove legacy MSI implementation
  platform-msi: Remove stale comment

 drivers/base/platform-msi.c                 |   4 -
 drivers/bus/fsl-mc/dprc-driver.c            |  14 +-
 drivers/bus/fsl-mc/fsl-mc-bus.c             |   4 +-
 drivers/bus/fsl-mc/fsl-mc-msi.c             | 166 +++----------------
 drivers/bus/fsl-mc/fsl-mc-private.h         |   2 +-
 drivers/irqchip/Kconfig                     |   6 -
 drivers/irqchip/Makefile                    |   1 -
 drivers/irqchip/irq-gic-its-msi-parent.c    |   7 +-
 drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c | 168 --------------------
 include/linux/fsl/mc.h                      |   6 +-
 include/linux/irqdomain_defs.h              |   1 -
 11 files changed, 39 insertions(+), 340 deletions(-)
 delete mode 100644 drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c

-- 
2.47.3

Re: [PATCH v2 0/6] fsl-mc: Move over to device MSI infrastructure

Posted by Christophe Leroy (CS GROUP) 1 month, 2 weeks ago

On Tue, 24 Feb 2026 10:09:30 +0000, Marc Zyngier wrote:
> This is the second drop of this cleanup series for the fsl-mc MSI
> infrastructure, initially posted at [1].
> 
> * From v1 [1]:
> 
>   - Drop the now unused DOMAIN_BUS_FSL_MC_MSI bus token
> 
> [...]

Applied, thanks!

[1/6] fsl-mc: Remove MSI domain propagation to sub-devices
      commit: 1fb7392ee3408494d4d62c09a8c3e5f5934caba7
[2/6] fsl-mc: Add minimal infrastructure to use platform MSI
      commit: 0c9f522f2d41c7e055a602a0d2c41dc7af01010b
[3/6] irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling
      commit: cf3179b4e53f527aba9f0c6c3b921619c8adf761
[4/6] fsl-mc: Switch over to per-device platform MSI
      commit: 4a958e47c246fa3fb8954f4303e0da15ab3d026d
[5/6] fsl-mc: Remove legacy MSI implementation
      commit: 14b1cbcc6cec0b02298f4adf717646cd943b7ef6
[6/6] platform-msi: Remove stale comment
      commit: f0a2eac6a597268034fd40d92c1469182438b53d

Best regards,
-- 
Christophe Leroy (CS GROUP) <chleroy@kernel.org>

Re: [PATCH v2 0/6] fsl-mc: Move over to device MSI infrastructure

Posted by Thomas Gleixner 1 month, 3 weeks ago

On Tue, Feb 24 2026 at 10:09, Marc Zyngier wrote:

> This is the second drop of this cleanup series for the fsl-mc MSI
> infrastructure, initially posted at [1].
>
> * From v1 [1]:
>
>   - Drop the now unused DOMAIN_BUS_FSL_MC_MSI bus token
>
>   - Tidy-up fsl_mc_write_msi_msg() while removing the legacy helper
>
>   - Fix include ordering in irq-gic-its-msi-parent.c
>
>   - Various commit message cleanups
>
>   - Collected tags from Ioana and Sascha, with thanks
>
>   - Rebased on top of v7.0.rc1
>
> [1] https://lore.kernel.org/r/20260218135203.2267907-1-maz@kernel.org

Acked-by: Thomas Gleixner <tglx@kernel.org>

in case this goes through the FSL SoC tree. If not, please let me know
and I pick it up.

Thanks,

        tglx