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| author | Sebastian Ott <sebott@linux.ibm.com> | 2019-04-14 15:38:01 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-29 10:47:01 +0200 |
| commit | 71ba41c9b1d91042960e9d92a5c8f52dc8531eda (patch) | |
| tree | c0d4f5379684fb236526127730073d5fe1d44ea3 /arch/s390/include/asm/pci.h | |
| parent | c475f1770a5e062652a6a877afcbd4e22b18039f (diff) | |
| download | talos-op-linux-71ba41c9b1d91042960e9d92a5c8f52dc8531eda.tar.gz talos-op-linux-71ba41c9b1d91042960e9d92a5c8f52dc8531eda.zip | |
s390/pci: provide support for MIO instructions
Provide support for PCI I/O instructions that work on mapped IO addresses.
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/pci.h')
| -rw-r--r-- | arch/s390/include/asm/pci.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 328013219aec..305befd55326 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -86,6 +86,8 @@ enum zpci_state { struct zpci_bar_struct { struct resource *res; /* bus resource */ + void __iomem *mio_wb; + void __iomem *mio_wt; u32 val; /* bar start & 3 flag bits */ u16 map_idx; /* index into bar mapping array */ u8 size; /* order 2 exponent */ @@ -135,6 +137,7 @@ struct zpci_dev { struct iommu_device iommu_dev; /* IOMMU core handle */ char res_name[16]; + bool mio_capable; struct zpci_bar_struct bars[PCI_BAR_COUNT]; u64 start_dma; /* Start of available DMA addresses */ |
