diff options
| author | Gavin Shan | 2014-06-10 03:41:56 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt | 2014-08-05 07:28:48 +0200 |
| commit | 212d16cdca2d0f7708c9c1d284a845c22bfc90c4 (patch) | |
| tree | 04d38ee81e32b9c1a06292ee5f07de0a53fdc324 /arch/powerpc/include | |
| parent | powerpc/eeh: Avoid event on passed PE (diff) | |
| download | kernel-qcow2-linux-212d16cdca2d0f7708c9c1d284a845c22bfc90c4.tar.gz kernel-qcow2-linux-212d16cdca2d0f7708c9c1d284a845c22bfc90c4.tar.xz kernel-qcow2-linux-212d16cdca2d0f7708c9c1d284a845c22bfc90c4.zip | |
powerpc/eeh: EEH support for VFIO PCI device
The patch exports functions to be used by new VFIO ioctl command,
which will be introduced in subsequent patch, to support EEH
functinality for VFIO PCI devices.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 9537d83b8320..6e4789418233 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -172,6 +172,11 @@ enum { #define EEH_STATE_DMA_ACTIVE (1 << 4) /* Active DMA */ #define EEH_STATE_MMIO_ENABLED (1 << 5) /* MMIO enabled */ #define EEH_STATE_DMA_ENABLED (1 << 6) /* DMA enabled */ +#define EEH_PE_STATE_NORMAL 0 /* Normal state */ +#define EEH_PE_STATE_RESET 1 /* PE reset asserted */ +#define EEH_PE_STATE_STOPPED_IO_DMA 2 /* Frozen PE */ +#define EEH_PE_STATE_STOPPED_DMA 4 /* Stopped DMA, Enabled IO */ +#define EEH_PE_STATE_UNAVAIL 5 /* Unavailable */ #define EEH_RESET_DEACTIVATE 0 /* Deactivate the PE reset */ #define EEH_RESET_HOT 1 /* Hot reset */ #define EEH_RESET_FUNDAMENTAL 3 /* Fundamental reset */ @@ -279,6 +284,13 @@ void eeh_add_device_late(struct pci_dev *); void eeh_add_device_tree_late(struct pci_bus *); void eeh_add_sysfs_files(struct pci_bus *); void eeh_remove_device(struct pci_dev *); +int eeh_dev_open(struct pci_dev *pdev); +void eeh_dev_release(struct pci_dev *pdev); +struct eeh_pe *eeh_iommu_group_to_pe(struct iommu_group *group); +int eeh_pe_set_option(struct eeh_pe *pe, int option); +int eeh_pe_get_state(struct eeh_pe *pe); +int eeh_pe_reset(struct eeh_pe *pe, int option); +int eeh_pe_configure(struct eeh_pe *pe); /** * EEH_POSSIBLE_ERROR() -- test for possible MMIO failure. |