xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/powernv: Implement MSI support for p5ioc2 PCIe

Browse Source 
This implements support for MSIs on p5ioc2 PHBs. We only support
MSIs on the PCIe PHBs, not the PCI-X ones as the later hasn't been
properly verified in HW.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2011-09-19 17:45:06 +00:00
parent 61305a96fa
commit c1a2562ac5
3 changed files with 168 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/powerpc/platforms/powernv/pci.h
View File

@@ -16,6 +16,16 @@ struct pnv_phb {
void __iomem *regs;
spinlock_t lock;
#ifdef CONFIG_PCI_MSI
unsigned long *msi_map;
unsigned int msi_base;
unsigned int msi_count;
unsigned int msi_next;
unsigned int msi32_support;
#endif
int (*msi_setup)(struct pnv_phb *phb, struct pci_dev *dev,
unsigned int hwirq, unsigned int is_64,
struct msi_msg *msg);
void (*dma_dev_setup)(struct pnv_phb *phb, struct pci_dev *pdev);
void (*fixup_phb)(struct pci_controller *hose);
u32 (*bdfn_to_pe)(struct pnv_phb *phb, struct pci_bus *bus, u32 devfn);