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| author | Andrew Donnellan <andrew.donnellan@au1.ibm.com> | 2016-07-13 23:17:12 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-14 12:28:08 +0200 |
| commit | 89379f165a1be13aa9b4731a9095171142ee1c7b (patch) | |
| tree | 81daaed5e7b5e494ae497c2ddf09791658ceca05 /arch/powerpc/include/asm/pnv-pci.h | |
| parent | cxl: Workaround PE=0 hardware limitation in Mellanox CX4 (diff) | |
| download | linux-89379f165a1be13aa9b4731a9095171142ee1c7b.tar.xz linux-89379f165a1be13aa9b4731a9095171142ee1c7b.zip | |
PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl
The cxl driver will use infrastructure from pnv_php to handle device tree
updates when switching bi-modal CAPI cards into CAPI mode.
To enable this, export pnv_php_find_slot() and
pnv_php_set_slot_power_state(), and add corresponding declarations, as well
as the definition of struct pnv_php_slot, to asm/pnv-pci.h.
Cc: Gavin Shan <gwshan@linux.vnet.ibm.com>
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
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 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h index c47097f7f6ab..0cbd8134ce81 100644 --- a/arch/powerpc/include/asm/pnv-pci.h +++ b/arch/powerpc/include/asm/pnv-pci.h @@ -11,6 +11,7 @@ #define _ASM_PNV_PCI_H #include <linux/pci.h> +#include <linux/pci_hotplug.h> #include <misc/cxl-base.h> #include <asm/opal-api.h> @@ -47,4 +48,31 @@ void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu); #endif +struct pnv_php_slot { + struct hotplug_slot slot; + struct hotplug_slot_info slot_info; + uint64_t id; + char *name; + int slot_no; + struct kref kref; +#define PNV_PHP_STATE_INITIALIZED 0 +#define PNV_PHP_STATE_REGISTERED 1 +#define PNV_PHP_STATE_POPULATED 2 +#define PNV_PHP_STATE_OFFLINE 3 + int state; + struct device_node *dn; + struct pci_dev *pdev; + struct pci_bus *bus; + bool power_state_check; + void *fdt; + void *dt; + struct of_changeset ocs; + struct pnv_php_slot *parent; + struct list_head children; + struct list_head link; +}; +extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn); +extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot, + uint8_t state); + #endif |