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genirq/msi, PCI/MSI: Spring cleaning - Part 2
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[V2,00/36] genirq/msi, PCI/MSI: Spring cleaning - Part 2
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[V2,01/36] device: Move MSI related data into a struct
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[V2,02/36] device: Add device::msi_data pointer and struct msi_device_data
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[V2,03/36] PCI/MSI: Allocate MSI device data on first use
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[V2,04/36] platform-msi: Allocate MSI device data on first use
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[V2,05/36] bus: fsl-mc-msi: Allocate MSI device data on first use
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[V2,06/36] soc: ti: ti_sci_inta_msi: Allocate MSI device data on first use
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[V2,07/36] genirq/msi: Provide msi_device_populate/destroy_sysfs()
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[V2,08/36] PCI/MSI: Let the irq code handle sysfs groups
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[V2,09/36] platform-msi: Let the core code handle sysfs groups
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[V2,10/36] genirq/msi: Remove the original sysfs interfaces
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[V2,11/36] platform-msi: Rename functions and clarify comments
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[V2,12/36] platform-msi: Store platform private data pointer in msi_device_data
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[V2,13/36] genirq/msi: Consolidate MSI descriptor data
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[V2,14/36] platform-msi: Use msi_desc::msi_index
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[V2,15/36] bus: fsl-mc-msi: Use msi_desc::msi_index
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[V2,16/36] soc: ti: ti_sci_inta_msi: Use msi_desc::msi_index
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[V2,17/36] PCI/MSI: Use msi_desc::msi_index
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[V2,18/36] genirq/msi: Add msi_device_data::properties
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[V2,19/36] PCI/MSI: Store properties in device::msi::data
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[V2,20/36] x86/pci/XEN: Use device MSI properties
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[V2,21/36] x86/apic/msi: Use device MSI properties
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[V2,22/36] genirq/msi: Use device MSI properties
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[V2,23/36] powerpc/cell/axon_msi: Use MSI device properties
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[V2,24/36] powerpc/pseries/msi: Use MSI device properties
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[V2,25/36] PCI/MSI: Provide MSI_FLAG_MSIX_CONTIGUOUS
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[V2,26/36] powerpc/pseries/msi: Let core code check for contiguous entries
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[V2,27/36] genirq/msi: Provide interface to retrieve Linux interrupt number
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[V2,28/36] PCI/MSI: Use __msi_get_virq() in pci_get_vector()
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[V2,29/36] PCI/MSI: Simplify pci_irq_get_affinity()
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[V2,30/36] dmaengine: mv_xor_v2: Get rid of msi_desc abuse
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[V2,31/36] perf/smmuv3: Use msi_get_virq()
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[V2,32/36] iommu/arm-smmu-v3: Use msi_get_virq()
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[V2,33/36] mailbox: bcm-flexrm-mailbox: Rework MSI interrupt handling
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[V2,34/36] bus: fsl-mc: fsl-mc-allocator: Rework MSI handling
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[V2,35/36] soc: ti: ti_sci_inta_msi: Get rid of ti_sci_inta_msi_get_virq()
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[V2,36/36] dmaengine: qcom_hidma: Cleanup MSI handling
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This is the second part of [PCI]MSI refactoring which aims to provide the ability of expanding MSI-X vectors after enabling MSI-X. The first part of this work can be found here: https://lore.kernel.org/r/20211206210147.872865823@linutronix.de This second part has the following important changes: 1) Cleanup of the MSI related data in struct device struct device contains at the moment various MSI related parts. Some of them (the irq domain pointer) cannot be moved out, but the rest can be allocated on first use. This is in preparation of adding more per device MSI data later on. 2) Consolidation of sysfs handling As a first step this moves the sysfs pointer from struct msi_desc into the new per device MSI data structure where it belongs. Later changes will cleanup this code further, but that's not possible at this point. 3) Store per device properties in the per device MSI data to avoid looking up MSI descriptors and analysing their data. Cleanup all related use cases. 4) Provide a function to retrieve the Linux interrupt number for a given MSI index similar to pci_irq_vector() and cleanup all open coded variants. This second series is based on: git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git msi-v2-part-1 and also available from git: git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git msi-v2-part-2 For the curious who can't wait for the next part to arrive the full series is available via: git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git msi-v2-part-3 V1 of this series can be found here: https://lore.kernel.org/r/20211126224100.303046749@linutronix.de Changes versus V1: - Fix the pci_irq_vector() thinko - Marc - Fix the powerpc fallout - Cedric, Andy - Addressed codingstyle/comments feedback - Jonathan - Added a MSI properties setter to prepare for later changes - Confined the global msi*sysfs functions to legacy code - Dropped the MSI lock patch as the lock has moved to struct pci_dev in V2 part-1 now - Picked up Reviewed/Tested/Acked-by tags as appropriate Thanks, tglx --- arch/powerpc/platforms/cell/axon_msi.c | 6 arch/powerpc/platforms/pseries/msi.c | 39 +--- arch/x86/kernel/apic/msi.c | 5 arch/x86/pci/xen.c | 8 drivers/base/platform-msi.c | 152 +++++++--------- drivers/bus/fsl-mc/dprc-driver.c | 8 drivers/bus/fsl-mc/fsl-mc-allocator.c | 9 drivers/bus/fsl-mc/fsl-mc-msi.c | 26 +- drivers/dma/mv_xor_v2.c | 16 - drivers/dma/qcom/hidma.c | 44 ++-- drivers/dma/ti/k3-udma-private.c | 6 drivers/dma/ti/k3-udma.c | 14 - drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 23 -- drivers/irqchip/irq-mbigen.c | 4 drivers/irqchip/irq-mvebu-icu.c | 12 - drivers/irqchip/irq-ti-sci-inta.c | 2 drivers/mailbox/bcm-flexrm-mailbox.c | 9 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c | 4 drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 5 drivers/pci/msi/irqdomain.c | 20 +- drivers/pci/msi/legacy.c | 6 drivers/pci/msi/msi.c | 118 ++++-------- drivers/pci/xen-pcifront.c | 2 drivers/perf/arm_smmuv3_pmu.c | 5 drivers/soc/fsl/dpio/dpio-driver.c | 8 drivers/soc/ti/k3-ringacc.c | 6 drivers/soc/ti/ti_sci_inta_msi.c | 22 -- drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c | 4 include/linux/device.h | 25 ++ include/linux/fsl/mc.h | 4 include/linux/msi.h | 112 ++++++------ include/linux/pci.h | 1 include/linux/soc/ti/ti_sci_inta_msi.h | 1 kernel/irq/msi.c | 182 +++++++++++++++----- 35 files changed, 464 insertions(+), 448 deletions(-)