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| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | 2016-05-20 08:41:41 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-21 07:30:58 +0200 |
| commit | ea0d856cb26d4d78b9529de49a0f89379224e2f9 (patch) | |
| tree | 3bc16ada897bb1289a663e07177a08eef5ac4a31 /arch/powerpc/include/asm/pnv-pci.h | |
| parent | powerpc/powernv: Introduce pnv_pci_get_slot_id() (diff) | |
| download | linux-ea0d856cb26d4d78b9529de49a0f89379224e2f9.tar.xz linux-ea0d856cb26d4d78b9529de49a0f89379224e2f9.zip | |
powerpc/powernv: Functions to get/set PCI slot state
This exports 4 functions, which base on the corresponding OPAL
APIs to get/set PCI slot status. Those functions are going to
be used by PowerNV PCI hotplug driver:
pnv_pci_get_device_tree() opal_get_device_tree()
pnv_pci_get_presence_state() opal_pci_get_presence_state()
pnv_pci_get_power_state() opal_pci_get_power_state()
pnv_pci_set_power_state() opal_pci_set_power_state()
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/pnv-pci.h')
| -rw-r--r-- | arch/powerpc/include/asm/pnv-pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h index 810cc9a8169f..791db1bbd4b9 100644 --- a/arch/powerpc/include/asm/pnv-pci.h +++ b/arch/powerpc/include/asm/pnv-pci.h @@ -12,12 +12,18 @@ #include <linux/pci.h> #include <misc/cxl-base.h> +#include <asm/opal-api.h> #define PCI_SLOT_ID_PREFIX 0x8000000000000000 #define PCI_SLOT_ID(phb_id, bdfn) \ (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id)) extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id); +extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len); +extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state); +extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state); +extern int pnv_pci_set_power_state(uint64_t id, uint8_t state, + struct opal_msg *msg); int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode); int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, |