diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2016-07-08 16:37:05 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-15 20:18:43 +1000 |
| commit | 9fedd3f8804af87be608310aac707a64f831b344 (patch) | |
| tree | 81611604b81aba3554d2d0bad97dfa46f5f09b91 /arch | |
| parent | c0691f9dd2066087524d2b4498c0c9331f26dcd5 (diff) | |
powerpc/powernv: Add XICS emulation APIs
OPAL provides an emulated XICS interrupt controller to
use as a fallback on newer processors that don't have a
XICS. It's meant as a way to provide backward compatibility
with future processors. Add the corresponding interfaces.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/opal-api.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 4 |
3 files changed, 14 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h index 6de1e4e272f9..b349621da6ce 100644 --- a/arch/powerpc/include/asm/opal-api.h +++ b/arch/powerpc/include/asm/opal-api.h @@ -162,7 +162,11 @@ #define OPAL_PCI_GET_PRESENCE_STATE 119 #define OPAL_PCI_GET_POWER_STATE 120 #define OPAL_PCI_SET_POWER_STATE 121 -#define OPAL_LAST 121 +#define OPAL_INT_GET_XIRR 122 +#define OPAL_INT_SET_CPPR 123 +#define OPAL_INT_EOI 124 +#define OPAL_INT_SET_MFRR 125 +#define OPAL_LAST 125 /* Device tree flags */ diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 52b9f4a80aed..162ebe6f2de6 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -218,6 +218,11 @@ int64_t opal_pci_set_power_state(uint64_t async_token, uint64_t id, uint64_t data); int64_t opal_pci_poll2(uint64_t id, uint64_t data); +int64_t opal_int_get_xirr(uint32_t *out_xirr, bool just_poll); +int64_t opal_int_set_cppr(uint8_t cppr); +int64_t opal_int_eoi(uint32_t xirr); +int64_t opal_int_set_mfrr(uint32_t cpu, uint8_t mfrr); + /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 7979d6d43bff..c7764f9f661d 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -307,3 +307,7 @@ OPAL_CALL(opal_get_device_tree, OPAL_GET_DEVICE_TREE); OPAL_CALL(opal_pci_get_presence_state, OPAL_PCI_GET_PRESENCE_STATE); OPAL_CALL(opal_pci_get_power_state, OPAL_PCI_GET_POWER_STATE); OPAL_CALL(opal_pci_set_power_state, OPAL_PCI_SET_POWER_STATE); +OPAL_CALL(opal_int_get_xirr, OPAL_INT_GET_XIRR); +OPAL_CALL(opal_int_set_cppr, OPAL_INT_SET_CPPR); +OPAL_CALL(opal_int_eoi, OPAL_INT_EOI); +OPAL_CALL(opal_int_set_mfrr, OPAL_INT_SET_MFRR); |