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path: root/drivers/pci/controller/pcie-iproc-msi.c
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2023-07-13PCI: iproc: Use of_property_read_bool() for boolean propertiesRob Herring1-3/+2
Replace low-level property access functions like of_get_property() and of_find_property() with their typed equivalents (i.e., of_property_read_<type> functions), as it's preferred to use typed property access functions for reading properties. [kwilczynski: commit log] Link: https://lore.kernel.org/linux-pci/[email protected] Signed-off-by: Rob Herring <[email protected]> Signed-off-by: Krzysztof Wilczyński <[email protected]> Reviewed-by: Florian Fainelli <[email protected]> Acked-by: Ray Jui <[email protected]>
2022-07-05PCI: iproc: Use bitmap API to allocate bitmapsChristophe JAILLET1-2/+2
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them. It is less verbose and it improves the semantic. Link: https://lore.kernel.org/r/d839a951358ceb447226dc776590a2a38f3e3f9d.1656940469.git.christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Ray Jui <[email protected]>
2021-08-02PCI: Bulk conversion to generic_handle_domain_irq()Marc Zyngier1-3/+1
Wherever possible, replace constructs that match either generic_handle_irq(irq_find_mapping()) or generic_handle_irq(irq_linear_revmap()) to a single call to generic_handle_domain_irq(). Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Krzysztof Kozlowski <[email protected]>
2021-07-06Merge branch 'remotes/lorenzo/pci/iproc'Bjorn Helgaas1-11/+18
- Fix multi-MSI base vector number allocation (Sandor Bodo-Merle) - Restrict multi-MSI support to uniprocessor kernel (Sandor Bodo-Merle) * remotes/lorenzo/pci/iproc: PCI: iproc: Support multi-MSI only on uniprocessor kernel PCI: iproc: Fix multi-MSI base vector number allocation
2021-07-06PCI: Fix kernel-doc formattingKrzysztof Wilczyński1-2/+2
Fix kernel-doc formatting throughout drivers/pci and related include files. No change to functionality intended. Check for warnings: $ find include drivers/pci -type f -path "*pci*.[ch]" | xargs scripts/kernel-doc -none [bhelgaas: squashed to one commit] Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Krzysztof Wilczyński <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]>
2021-06-22PCI: iproc: Support multi-MSI only on uniprocessor kernelSandor Bodo-Merle1-1/+7
The interrupt affinity scheme used by this driver is incompatible with multi-MSI as it implies moving the doorbell address to that of another MSI group. This isn't possible for multi-MSI, as all the MSIs must have the same doorbell address. As such it is restricted to systems with a single CPU. Link: https://lore.kernel.org/r/[email protected] Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs") Reported-by: Marc Zyngier <[email protected]> Signed-off-by: Sandor Bodo-Merle <[email protected]> Signed-off-by: Lorenzo Pieralisi <[email protected]> Acked-by: Marc Zyngier <[email protected]> Acked-by: Pali Rohár <[email protected]> Acked-by: Ray Jui <[email protected]>
2021-06-22PCI: iproc: Fix multi-MSI base vector number allocationSandor Bodo-Merle1-10/+11
Commit fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs") introduced multi-MSI support with a broken allocation mechanism (it failed to reserve the proper number of bits from the inner domain). Natural alignment of the base vector number was also not guaranteed. Link: https://lore.kernel.org/r/[email protected] Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs") Reported-by: Pali Rohár <[email protected]> Signed-off-by: Sandor Bodo-Merle <[email protected]> Signed-off-by: Lorenzo Pieralisi <[email protected]> Acked-by: Marc Zyngier <[email protected]> Acked-by: Pali Rohár <[email protected]> Acked-by: Ray Jui <[email protected]>
2021-03-22PCI: iproc: Fix return value of iproc_msi_irq_domain_alloc()Pali Rohár1-1/+1
IRQ domain alloc function should return zero on success. Non-zero value indicates failure. Link: https://lore.kernel.org/r/[email protected] Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs") Signed-off-by: Pali Rohár <[email protected]> Signed-off-by: Lorenzo Pieralisi <[email protected]> Reviewed-by: Krzysztof Wilczyński <[email protected]> Acked-by: Ray Jui <[email protected]> Acked-by: Marc Zyngier <[email protected]>
2020-09-08PCI: iproc: Set affinity mask on MSI interruptsMark Tomlinson1-4/+9
The core interrupt code expects the irq_set_affinity call to update the effective affinity for the interrupt. This was not being done, so update iproc_msi_irq_set_affinity() to do so. Link: https://lore.kernel.org/r/[email protected] Fixes: 3bc2b2348835 ("PCI: iproc: Add iProc PCIe MSI support") Signed-off-by: Mark Tomlinson <[email protected]> Signed-off-by: Lorenzo Pieralisi <[email protected]> Reviewed-by: Ray Jui <[email protected]>
2019-10-17PCI: iproc-msi: Fix __iomem annotation in decode_msi_hwirq()Ben Dooks (Codethink)1-2/+3
Fix __iomem attribute on msg variable passed to readl() in the decode_msi_hwirq() function. Fixes the following sparse warning: drivers/pci/controller/pcie-iproc-msi.c:301:17: warning: incorrect type in argument 1 (different address spaces) drivers/pci/controller/pcie-iproc-msi.c:301:17: expected void const volatile [noderef] <asn:2> *addr drivers/pci/controller/pcie-iproc-msi.c:301:17: got unsigned int [usertype] *[assigned] msg Signed-off-by: Ben Dooks <[email protected]> Signed-off-by: Lorenzo Pieralisi <[email protected]> Cc: Lorenzo Pieralisi <[email protected]> Cc: Andrew Murray <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Ray Jui <[email protected]> Cc: Scott Branden <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected]
2019-04-13PCI: Fix comment typosBjorn Helgaas1-1/+1
Fix spelling errors and format function comments consistently. Changes whitespace and comments only; no functional change intended. Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Mukesh Ojha <[email protected]>
2019-01-08cross-tree: phase out dma_zalloc_coherent()Luis Chamberlain1-3/+3
We already need to zero out memory for dma_alloc_coherent(), as such using dma_zalloc_coherent() is superflous. Phase it out. This change was generated with the following Coccinelle SmPL patch: @ replace_dma_zalloc_coherent @ expression dev, size, data, handle, flags; @@ -dma_zalloc_coherent(dev, size, handle, flags) +dma_alloc_coherent(dev, size, handle, flags) Suggested-by: Christoph Hellwig <[email protected]> Signed-off-by: Luis Chamberlain <[email protected]> [hch: re-ran the script on the latest tree] Signed-off-by: Christoph Hellwig <[email protected]>
2018-06-08PCI: Collect all native drivers under drivers/pci/controller/Shawn Lin1-0/+671
Native PCI drivers for root complex devices were originally all in drivers/pci/host/. Some of these devices can also be operated in endpoint mode. Drivers for endpoint mode didn't seem to fit in the "host" directory, so we put both the root complex and endpoint drivers in per-device directories, e.g., drivers/pci/dwc/, drivers/pci/cadence/, etc. These per-device directories contain trivial Kconfig and Makefiles and clutter drivers/pci/. Make a new drivers/pci/controllers/ directory and collect all the device-specific drivers there. No functional change intended. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Shawn Lin <[email protected]> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <[email protected]>
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