On Sun, Mar 29, 2020 at 10:23 PM Alastair D'Silva <alastair@xxxxxxxxxxx> wrote: > > Add OPAL calls for LPC memory alloc/release > This seems to be referencing an existing api definition, can you include a pointer to the spec in case someone wanted to understand what these routines do? I suspect this is not allocating memory in the traditional sense as much as it's allocating physical address space for a device to be mapped? > Signed-off-by: Alastair D'Silva <alastair@xxxxxxxxxxx> > Acked-by: Andrew Donnellan <ajd@xxxxxxxxxxxxx> > Acked-by: Frederic Barrat <fbarrat@xxxxxxxxxxxxx> > --- > arch/powerpc/include/asm/opal-api.h | 2 ++ > arch/powerpc/include/asm/opal.h | 2 ++ > arch/powerpc/platforms/powernv/opal-call.c | 2 ++ > 3 files changed, 6 insertions(+) > > diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h > index c1f25a760eb1..9298e603001b 100644 > --- a/arch/powerpc/include/asm/opal-api.h > +++ b/arch/powerpc/include/asm/opal-api.h > @@ -208,6 +208,8 @@ > #define OPAL_HANDLE_HMI2 166 > #define OPAL_NX_COPROC_INIT 167 > #define OPAL_XIVE_GET_VP_STATE 170 > +#define OPAL_NPU_MEM_ALLOC 171 > +#define OPAL_NPU_MEM_RELEASE 172 > #define OPAL_MPIPL_UPDATE 173 > #define OPAL_MPIPL_REGISTER_TAG 174 > #define OPAL_MPIPL_QUERY_TAG 175 > diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h > index 9986ac34b8e2..301fea46c7ca 100644 > --- a/arch/powerpc/include/asm/opal.h > +++ b/arch/powerpc/include/asm/opal.h > @@ -39,6 +39,8 @@ int64_t opal_npu_spa_clear_cache(uint64_t phb_id, uint32_t bdfn, > uint64_t PE_handle); > int64_t opal_npu_tl_set(uint64_t phb_id, uint32_t bdfn, long cap, > uint64_t rate_phys, uint32_t size); > +int64_t opal_npu_mem_alloc(u64 phb_id, u32 bdfn, u64 size, __be64 *bar); > +int64_t opal_npu_mem_release(u64 phb_id, u32 bdfn); > > int64_t opal_console_write(int64_t term_number, __be64 *length, > const uint8_t *buffer); > diff --git a/arch/powerpc/platforms/powernv/opal-call.c b/arch/powerpc/platforms/powernv/opal-call.c > index 5cd0f52d258f..f26e58b72c04 100644 > --- a/arch/powerpc/platforms/powernv/opal-call.c > +++ b/arch/powerpc/platforms/powernv/opal-call.c > @@ -287,6 +287,8 @@ OPAL_CALL(opal_pci_set_pbcq_tunnel_bar, OPAL_PCI_SET_PBCQ_TUNNEL_BAR); > OPAL_CALL(opal_sensor_read_u64, OPAL_SENSOR_READ_U64); > OPAL_CALL(opal_sensor_group_enable, OPAL_SENSOR_GROUP_ENABLE); > OPAL_CALL(opal_nx_coproc_init, OPAL_NX_COPROC_INIT); > +OPAL_CALL(opal_npu_mem_alloc, OPAL_NPU_MEM_ALLOC); > +OPAL_CALL(opal_npu_mem_release, OPAL_NPU_MEM_RELEASE); > OPAL_CALL(opal_mpipl_update, OPAL_MPIPL_UPDATE); > OPAL_CALL(opal_mpipl_register_tag, OPAL_MPIPL_REGISTER_TAG); > OPAL_CALL(opal_mpipl_query_tag, OPAL_MPIPL_QUERY_TAG); > -- > 2.24.1 >
