diff options
| author | Kishon Vijay Abraham I <kishon@ti.com> | 2020-02-25 11:17:02 +0300 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-04-02 19:57:10 +0300 |
| commit | 6f5e193bfb55963ce5f4f68cc927f371ddb0913b (patch) | |
| tree | db006ec7bb16dc81c37517c8f011a0fb025bf9f5 /include/linux | |
| parent | 83153d9f36e24978c6211d246cb6f532bf54e5dc (diff) | |
| download | linux-6f5e193bfb55963ce5f4f68cc927f371ddb0913b.tar.xz | |
PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address
commit beb4641a787d ("PCI: dwc: Add MSI-X callbacks handler"),
in order to raise MSI-X interrupt, obtained MSIX table address from
Base Address Register (BAR). However BAR only holds PCI address
programmed by the host whereas the MSI-X table should be in the local
memory.
Store the MSI-X table address (virtual address) as part of ->set_bar()
callback and use that to get the message address and message data
here.
Fixes: beb4641a787d ("PCI: dwc: Add MSI-X callbacks handler")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci-epf.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 0c628e30c582..6644ff3b0702 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -94,10 +94,12 @@ struct pci_epf_driver { /** * struct pci_epf_bar - represents the BAR of EPF device * @phys_addr: physical address that should be mapped to the BAR + * @addr: virtual address corresponding to the @phys_addr * @size: the size of the address space present in BAR */ struct pci_epf_bar { dma_addr_t phys_addr; + void *addr; size_t size; enum pci_barno barno; int flags; @@ -134,6 +136,19 @@ struct pci_epf { struct mutex lock; }; +/** + * struct pci_epf_msix_tbl - represents the MSIX table entry structure + * @msg_addr: Writes to this address will trigger MSIX interrupt in host + * @msg_data: Data that should be written to @msg_addr to trigger MSIX interrupt + * @vector_ctrl: Identifies if the function is prohibited from sending a message + * using this MSIX table entry + */ +struct pci_epf_msix_tbl { + u64 msg_addr; + u32 msg_data; + u32 vector_ctrl; +}; + #define to_pci_epf(epf_dev) container_of((epf_dev), struct pci_epf, dev) #define pci_epf_register_driver(driver) \ |