| Message ID | 20220901032721.1392482-5-robert.hu@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Support ACPI NVDIMM Label Methods | expand |
On Thu, 1 Sep 2022 11:27:20 +0800 Robert Hoo <robert.hu@linux.intel.com> wrote: > Recent ACPI spec [1] has defined NVDIMM Label Methods _LS{I,R,W}, which > deprecates corresponding _DSM Functions defined by PMEM _DSM Interface spec > [2]. > > Since the semantics of the new Label Methods are same as old _DSM > methods, the implementations here simply wrapper old ones. > > ASL form diff can be found in next patch of updating golden master > binaries. > > [1] ACPI Spec v6.4, 6.5.10 NVDIMM Label Methods > https://uefi.org/sites/default/files/resources/ACPI_Spec_6_4_Jan22.pdf > [2] Intel PMEM _DSM Interface Spec v2.0, 3.10 Deprecated Functions > https://pmem.io/documents/IntelOptanePMem_DSM_Interface-V2.0.pdf > > Signed-off-by: Robert Hoo <robert.hu@linux.intel.com> > Reviewed-by: Jingqi Liu <jingqi.liu@intel.com> looks more or less fine except of excessive use of named variables which creates global scope variables. I'd suggest to store temporary buffers/packages in LocalX variales, you should be able to do that for everything modulo aml_create_dword_field(). see an example below > --- > hw/acpi/nvdimm.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 91 insertions(+) > > diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c > index afff911c1e..516acfe53b 100644 > --- a/hw/acpi/nvdimm.c > +++ b/hw/acpi/nvdimm.c > @@ -1243,6 +1243,7 @@ static void nvdimm_build_fit(Aml *dev) > static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t ram_slots) > { > uint32_t slot; > + Aml *method, *pkg, *field, *com_call; > > for (slot = 0; slot < ram_slots; slot++) { > uint32_t handle = nvdimm_slot_to_handle(slot); > @@ -1260,6 +1261,96 @@ static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t ram_slots) > */ > aml_append(nvdimm_dev, aml_name_decl("_ADR", aml_int(handle))); > > + /* > + * ACPI v6.4: Section 6.5.10 NVDIMM Label Methods > + */ > + /* _LSI */ > + method = aml_method("_LSI", 0, AML_SERIALIZED); > + com_call = aml_call5(NVDIMM_COMMON_DSM, > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > + aml_int(1), aml_int(4), aml_int(0), > + aml_int(handle)); > + aml_append(method, aml_store(com_call, aml_local(0))); > + > + aml_append(method, aml_create_dword_field(aml_local(0), > + aml_int(0), "STTS")); > + aml_append(method, aml_create_dword_field(aml_local(0), aml_int(4), > + "SLSA")); > + aml_append(method, aml_create_dword_field(aml_local(0), aml_int(8), > + "MAXT")); > + > + pkg = aml_package(3); > + aml_append(pkg, aml_name("STTS")); > + aml_append(pkg, aml_name("SLSA")); > + aml_append(pkg, aml_name("MAXT")); > + aml_append(method, aml_name_decl("RET", pkg)); ex: put it in local instead of named variable and return that the same applies to other named temporary named variables. > + aml_append(method, aml_return(aml_name("RET"))); > + > + aml_append(nvdimm_dev, method); > + > + /* _LSR */ > + method = aml_method("_LSR", 2, AML_SERIALIZED); > + aml_append(method, aml_name_decl("INPT", aml_buffer(8, NULL))); > + > + aml_append(method, aml_create_dword_field(aml_name("INPT"), > + aml_int(0), "OFST")); > + aml_append(method, aml_create_dword_field(aml_name("INPT"), > + aml_int(4), "LEN")); > + aml_append(method, aml_store(aml_arg(0), aml_name("OFST"))); > + aml_append(method, aml_store(aml_arg(1), aml_name("LEN"))); > + > + pkg = aml_package(1); > + aml_append(pkg, aml_name("INPT")); > + aml_append(method, aml_name_decl("PKG1", pkg)); > + > + com_call = aml_call5(NVDIMM_COMMON_DSM, > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > + aml_int(1), aml_int(5), aml_name("PKG1"), > + aml_int(handle)); > + aml_append(method, aml_store(com_call, aml_local(3))); > + field = aml_create_dword_field(aml_local(3), aml_int(0), "STTS"); > + aml_append(method, field); > + field = aml_create_field(aml_local(3), aml_int(32), > + aml_shiftleft(aml_name("LEN"), aml_int(3)), > + "LDAT"); > + aml_append(method, field); > + aml_append(method, aml_name_decl("LSA", aml_buffer(0, NULL))); > + aml_append(method, aml_to_buffer(aml_name("LDAT"), aml_name("LSA"))); > + pkg = aml_package(2); > + aml_append(pkg, aml_name("STTS")); > + aml_append(pkg, aml_name("LSA")); > + aml_append(method, aml_name_decl("RET", pkg)); > + aml_append(method, aml_return(aml_name("RET"))); > + aml_append(nvdimm_dev, method); > + > + /* _LSW */ > + method = aml_method("_LSW", 3, AML_SERIALIZED); > + aml_append(method, aml_store(aml_arg(2), aml_local(2))); > + aml_append(method, aml_name_decl("INPT", aml_buffer(8, NULL))); > + field = aml_create_dword_field(aml_name("INPT"), > + aml_int(0), "OFST"); > + aml_append(method, field); > + field = aml_create_dword_field(aml_name("INPT"), > + aml_int(4), "TLEN"); > + aml_append(method, field); > + aml_append(method, aml_store(aml_arg(0), aml_name("OFST"))); > + aml_append(method, aml_store(aml_arg(1), aml_name("TLEN"))); > + > + aml_append(method, aml_concatenate(aml_name("INPT"), aml_local(2), > + aml_name("INPT"))); > + pkg = aml_package(1); > + aml_append(pkg, aml_name("INPT")); > + aml_append(method, aml_name_decl("PKG1", pkg)); > + com_call = aml_call5(NVDIMM_COMMON_DSM, > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > + aml_int(1), aml_int(6), aml_name("PKG1"), > + aml_int(handle)); > + aml_append(method, aml_store(com_call, aml_local(3))); > + field = aml_create_dword_field(aml_local(3), aml_int(0), "STTS"); > + aml_append(method, field); > + aml_append(method, aml_return(aml_to_integer(aml_name("STTS")))); why do you need explicitly convert DWORD field to integer? it should be fine to return STTS directly (implicit conversion should take care of the rest) > + aml_append(nvdimm_dev, method); > + > nvdimm_build_device_dsm(nvdimm_dev, handle); > aml_append(root_dev, nvdimm_dev); > }
On Fri, 2022-09-09 at 15:39 +0200, Igor Mammedov wrote: > On Thu, 1 Sep 2022 11:27:20 +0800 > Robert Hoo <robert.hu@linux.intel.com> wrote: > > > Recent ACPI spec [1] has defined NVDIMM Label Methods _LS{I,R,W}, > > which > > deprecates corresponding _DSM Functions defined by PMEM _DSM > > Interface spec > > [2]. > > > > Since the semantics of the new Label Methods are same as old _DSM > > methods, the implementations here simply wrapper old ones. > > > > ASL form diff can be found in next patch of updating golden master > > binaries. > > > > [1] ACPI Spec v6.4, 6.5.10 NVDIMM Label Methods > > https://uefi.org/sites/default/files/resources/ACPI_Spec_6_4_Jan22.pdf > > [2] Intel PMEM _DSM Interface Spec v2.0, 3.10 Deprecated Functions > > https://pmem.io/documents/IntelOptanePMem_DSM_Interface-V2.0.pdf > > > > Signed-off-by: Robert Hoo <robert.hu@linux.intel.com> > > Reviewed-by: Jingqi Liu <jingqi.liu@intel.com> > > looks more or less fine except of excessive use of named variables > which creates global scope variables. > > I'd suggest to store temporary buffers/packages in LocalX variales, > you should be able to do that for everything modulo > aml_create_dword_field(). > > see an example below > > > --- > > hw/acpi/nvdimm.c | 91 > > ++++++++++++++++++++++++++++++++++++++++++++++++ > > 1 file changed, 91 insertions(+) > > > > diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c > > index afff911c1e..516acfe53b 100644 > > --- a/hw/acpi/nvdimm.c > > +++ b/hw/acpi/nvdimm.c > > @@ -1243,6 +1243,7 @@ static void nvdimm_build_fit(Aml *dev) > > static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t > > ram_slots) > > { > > uint32_t slot; > > + Aml *method, *pkg, *field, *com_call; > > > > for (slot = 0; slot < ram_slots; slot++) { > > uint32_t handle = nvdimm_slot_to_handle(slot); > > @@ -1260,6 +1261,96 @@ static void nvdimm_build_nvdimm_devices(Aml > > *root_dev, uint32_t ram_slots) > > */ > > aml_append(nvdimm_dev, aml_name_decl("_ADR", > > aml_int(handle))); > > > > + /* > > + * ACPI v6.4: Section 6.5.10 NVDIMM Label Methods > > + */ > > + /* _LSI */ > > + method = aml_method("_LSI", 0, AML_SERIALIZED); > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > + aml_int(1), aml_int(4), aml_int(0), > > + aml_int(handle)); > > + aml_append(method, aml_store(com_call, aml_local(0))); > > + > > + aml_append(method, aml_create_dword_field(aml_local(0), > > + aml_int(0), > > "STTS")); > > + aml_append(method, aml_create_dword_field(aml_local(0), > > aml_int(4), > > + "SLSA")); > > + aml_append(method, aml_create_dword_field(aml_local(0), > > aml_int(8), > > + "MAXT")); > > + > > + pkg = aml_package(3); > > + aml_append(pkg, aml_name("STTS")); > > + aml_append(pkg, aml_name("SLSA")); > > + aml_append(pkg, aml_name("MAXT")); > > + aml_append(method, aml_name_decl("RET", pkg)); > > ex: put it in local instead of named variable and return that > the same applies to other named temporary named variables. Could you help provide the example in form of ASL? Thanks. > > > + aml_append(method, aml_return(aml_name("RET"))); > > + > > + aml_append(nvdimm_dev, method); > > + > > + /* _LSR */ > > + method = aml_method("_LSR", 2, AML_SERIALIZED); > > + aml_append(method, aml_name_decl("INPT", aml_buffer(8, > > NULL))); > > + > > + aml_append(method, > > aml_create_dword_field(aml_name("INPT"), > > + aml_int(0), > > "OFST")); > > + aml_append(method, > > aml_create_dword_field(aml_name("INPT"), > > + aml_int(4), > > "LEN")); > > + aml_append(method, aml_store(aml_arg(0), > > aml_name("OFST"))); > > + aml_append(method, aml_store(aml_arg(1), > > aml_name("LEN"))); > > + > > + pkg = aml_package(1); > > + aml_append(pkg, aml_name("INPT")); > > + aml_append(method, aml_name_decl("PKG1", pkg)); > > + > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > + aml_int(1), aml_int(5), > > aml_name("PKG1"), > > + aml_int(handle)); > > + aml_append(method, aml_store(com_call, aml_local(3))); > > + field = aml_create_dword_field(aml_local(3), aml_int(0), > > "STTS"); > > + aml_append(method, field); > > + field = aml_create_field(aml_local(3), aml_int(32), > > + aml_shiftleft(aml_name("LEN"), > > aml_int(3)), > > + "LDAT"); > > + aml_append(method, field); > > + aml_append(method, aml_name_decl("LSA", aml_buffer(0, > > NULL))); > > + aml_append(method, aml_to_buffer(aml_name("LDAT"), > > aml_name("LSA"))); > > + pkg = aml_package(2); > > + aml_append(pkg, aml_name("STTS")); > > + aml_append(pkg, aml_name("LSA")); > > + aml_append(method, aml_name_decl("RET", pkg)); > > + aml_append(method, aml_return(aml_name("RET"))); > > + aml_append(nvdimm_dev, method); > > + > > + /* _LSW */ > > + method = aml_method("_LSW", 3, AML_SERIALIZED); > > + aml_append(method, aml_store(aml_arg(2), aml_local(2))); > > + aml_append(method, aml_name_decl("INPT", aml_buffer(8, > > NULL))); > > + field = aml_create_dword_field(aml_name("INPT"), > > + aml_int(0), > > "OFST"); > > + aml_append(method, field); > > + field = aml_create_dword_field(aml_name("INPT"), > > + aml_int(4), > > "TLEN"); > > + aml_append(method, field); > > + aml_append(method, aml_store(aml_arg(0), > > aml_name("OFST"))); > > + aml_append(method, aml_store(aml_arg(1), > > aml_name("TLEN"))); > > + > > + aml_append(method, aml_concatenate(aml_name("INPT"), > > aml_local(2), > > + aml_name("INPT"))); > > + pkg = aml_package(1); > > + aml_append(pkg, aml_name("INPT")); > > + aml_append(method, aml_name_decl("PKG1", pkg)); > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > + aml_int(1), aml_int(6), > > aml_name("PKG1"), > > + aml_int(handle)); > > + aml_append(method, aml_store(com_call, aml_local(3))); > > + field = aml_create_dword_field(aml_local(3), aml_int(0), > > "STTS"); > > + aml_append(method, field); > > + aml_append(method, > > aml_return(aml_to_integer(aml_name("STTS")))); > > why do you need explicitly convert DWORD field to integer? > it should be fine to return STTS directly (implicit conversion should > take care of the rest) > > > + aml_append(nvdimm_dev, method); > > + > > nvdimm_build_device_dsm(nvdimm_dev, handle); > > aml_append(root_dev, nvdimm_dev); > > } > >
On Fri, 09 Sep 2022 22:02:34 +0800 Robert Hoo <robert.hu@linux.intel.com> wrote: > On Fri, 2022-09-09 at 15:39 +0200, Igor Mammedov wrote: > > On Thu, 1 Sep 2022 11:27:20 +0800 > > Robert Hoo <robert.hu@linux.intel.com> wrote: > > > > > Recent ACPI spec [1] has defined NVDIMM Label Methods _LS{I,R,W}, > > > which > > > deprecates corresponding _DSM Functions defined by PMEM _DSM > > > Interface spec > > > [2]. > > > > > > Since the semantics of the new Label Methods are same as old _DSM > > > methods, the implementations here simply wrapper old ones. > > > > > > ASL form diff can be found in next patch of updating golden master > > > binaries. > > > > > > [1] ACPI Spec v6.4, 6.5.10 NVDIMM Label Methods > > > https://uefi.org/sites/default/files/resources/ACPI_Spec_6_4_Jan22.pdf > > > [2] Intel PMEM _DSM Interface Spec v2.0, 3.10 Deprecated Functions > > > https://pmem.io/documents/IntelOptanePMem_DSM_Interface-V2.0.pdf > > > > > > Signed-off-by: Robert Hoo <robert.hu@linux.intel.com> > > > Reviewed-by: Jingqi Liu <jingqi.liu@intel.com> > > > > looks more or less fine except of excessive use of named variables > > which creates global scope variables. > > > > I'd suggest to store temporary buffers/packages in LocalX variales, > > you should be able to do that for everything modulo > > aml_create_dword_field(). > > > > see an example below > > > > > --- > > > hw/acpi/nvdimm.c | 91 > > > ++++++++++++++++++++++++++++++++++++++++++++++++ > > > 1 file changed, 91 insertions(+) > > > > > > diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c > > > index afff911c1e..516acfe53b 100644 > > > --- a/hw/acpi/nvdimm.c > > > +++ b/hw/acpi/nvdimm.c > > > @@ -1243,6 +1243,7 @@ static void nvdimm_build_fit(Aml *dev) > > > static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t > > > ram_slots) > > > { > > > uint32_t slot; > > > + Aml *method, *pkg, *field, *com_call; > > > > > > for (slot = 0; slot < ram_slots; slot++) { > > > uint32_t handle = nvdimm_slot_to_handle(slot); > > > @@ -1260,6 +1261,96 @@ static void nvdimm_build_nvdimm_devices(Aml > > > *root_dev, uint32_t ram_slots) > > > */ > > > aml_append(nvdimm_dev, aml_name_decl("_ADR", > > > aml_int(handle))); > > > > > > + /* > > > + * ACPI v6.4: Section 6.5.10 NVDIMM Label Methods > > > + */ > > > + /* _LSI */ > > > + method = aml_method("_LSI", 0, AML_SERIALIZED); > > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > > + aml_int(1), aml_int(4), aml_int(0), > > > + aml_int(handle)); > > > + aml_append(method, aml_store(com_call, aml_local(0))); > > > + > > > + aml_append(method, aml_create_dword_field(aml_local(0), > > > + aml_int(0), > > > "STTS")); > > > + aml_append(method, aml_create_dword_field(aml_local(0), > > > aml_int(4), > > > + "SLSA")); > > > + aml_append(method, aml_create_dword_field(aml_local(0), > > > aml_int(8), > > > + "MAXT")); > > > + > > > + pkg = aml_package(3); > > > + aml_append(pkg, aml_name("STTS")); > > > + aml_append(pkg, aml_name("SLSA")); > > > + aml_append(pkg, aml_name("MAXT")); > > > + aml_append(method, aml_name_decl("RET", pkg)); > > > > ex: put it in local instead of named variable and return that > > the same applies to other named temporary named variables. > > Could you help provide the example in form of ASL? see hw/i386/acpi-build.c: build_prt() or aml_pci_device_dsm() > Thanks. > > > > > + aml_append(method, aml_return(aml_name("RET"))); > > > + > > > + aml_append(nvdimm_dev, method); > > > + > > > + /* _LSR */ > > > + method = aml_method("_LSR", 2, AML_SERIALIZED); > > > + aml_append(method, aml_name_decl("INPT", aml_buffer(8, > > > NULL))); > > > + > > > + aml_append(method, > > > aml_create_dword_field(aml_name("INPT"), > > > + aml_int(0), > > > "OFST")); > > > + aml_append(method, > > > aml_create_dword_field(aml_name("INPT"), > > > + aml_int(4), > > > "LEN")); > > > + aml_append(method, aml_store(aml_arg(0), > > > aml_name("OFST"))); > > > + aml_append(method, aml_store(aml_arg(1), > > > aml_name("LEN"))); > > > + > > > + pkg = aml_package(1); > > > + aml_append(pkg, aml_name("INPT")); > > > + aml_append(method, aml_name_decl("PKG1", pkg)); > > > + > > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > > + aml_int(1), aml_int(5), > > > aml_name("PKG1"), > > > + aml_int(handle)); > > > + aml_append(method, aml_store(com_call, aml_local(3))); > > > + field = aml_create_dword_field(aml_local(3), aml_int(0), > > > "STTS"); > > > + aml_append(method, field); > > > + field = aml_create_field(aml_local(3), aml_int(32), > > > + aml_shiftleft(aml_name("LEN"), > > > aml_int(3)), > > > + "LDAT"); > > > + aml_append(method, field); > > > + aml_append(method, aml_name_decl("LSA", aml_buffer(0, > > > NULL))); > > > + aml_append(method, aml_to_buffer(aml_name("LDAT"), > > > aml_name("LSA"))); > > > + pkg = aml_package(2); > > > + aml_append(pkg, aml_name("STTS")); > > > + aml_append(pkg, aml_name("LSA")); > > > + aml_append(method, aml_name_decl("RET", pkg)); > > > + aml_append(method, aml_return(aml_name("RET"))); > > > + aml_append(nvdimm_dev, method); > > > + > > > + /* _LSW */ > > > + method = aml_method("_LSW", 3, AML_SERIALIZED); > > > + aml_append(method, aml_store(aml_arg(2), aml_local(2))); > > > + aml_append(method, aml_name_decl("INPT", aml_buffer(8, > > > NULL))); > > > + field = aml_create_dword_field(aml_name("INPT"), > > > + aml_int(0), > > > "OFST"); > > > + aml_append(method, field); > > > + field = aml_create_dword_field(aml_name("INPT"), > > > + aml_int(4), > > > "TLEN"); > > > + aml_append(method, field); > > > + aml_append(method, aml_store(aml_arg(0), > > > aml_name("OFST"))); > > > + aml_append(method, aml_store(aml_arg(1), > > > aml_name("TLEN"))); > > > + > > > + aml_append(method, aml_concatenate(aml_name("INPT"), > > > aml_local(2), > > > + aml_name("INPT"))); > > > + pkg = aml_package(1); > > > + aml_append(pkg, aml_name("INPT")); > > > + aml_append(method, aml_name_decl("PKG1", pkg)); > > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > > + aml_int(1), aml_int(6), > > > aml_name("PKG1"), > > > + aml_int(handle)); > > > + aml_append(method, aml_store(com_call, aml_local(3))); > > > + field = aml_create_dword_field(aml_local(3), aml_int(0), > > > "STTS"); > > > + aml_append(method, field); > > > + aml_append(method, > > > aml_return(aml_to_integer(aml_name("STTS")))); > > > > why do you need explicitly convert DWORD field to integer? > > it should be fine to return STTS directly (implicit conversion should > > take care of the rest) > > > > > + aml_append(nvdimm_dev, method); > > > + > > > nvdimm_build_device_dsm(nvdimm_dev, handle); > > > aml_append(root_dev, nvdimm_dev); > > > } > > > > >
On Fri, 2022-09-09 at 15:39 +0200, Igor Mammedov wrote: ... > looks more or less fine except of excessive use of named variables > which creates global scope variables. > > I'd suggest to store temporary buffers/packages in LocalX variales, > you should be able to do that for everything modulo > aml_create_dword_field(). > > see an example below > ... > > > > + /* > > + * ACPI v6.4: Section 6.5.10 NVDIMM Label Methods > > + */ > > + /* _LSI */ > > + method = aml_method("_LSI", 0, AML_SERIALIZED); > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > + aml_int(1), aml_int(4), aml_int(0), > > + aml_int(handle)); > > + aml_append(method, aml_store(com_call, aml_local(0))); > > + > > + aml_append(method, aml_create_dword_field(aml_local(0), > > + aml_int(0), > > "STTS")); > > + aml_append(method, aml_create_dword_field(aml_local(0), > > aml_int(4), > > + "SLSA")); > > + aml_append(method, aml_create_dword_field(aml_local(0), > > aml_int(8), > > + "MAXT")); > > + > > + pkg = aml_package(3); > > + aml_append(pkg, aml_name("STTS")); > > + aml_append(pkg, aml_name("SLSA")); > > + aml_append(pkg, aml_name("MAXT")); > > + aml_append(method, aml_name_decl("RET", pkg)); > > ex: put it in local instead of named variable and return that > the same applies to other named temporary named variables. > Fine, get your point now. In ASL it will look like this: Local1 = Package (0x3) {STTS, SLSA, MAXT} Return (Local1) But as for CreateDWordField (Local0, Zero, STTS) // Status CreateDWordField (Local0, 0x04, SLSA) // SizeofLSA CreateDWordField (Local0, 0x08, MAXT) // Max Trans I cannot figure out how to substitute with LocalX. Can you shed more light? CreateQWordFieldTerm := CreateQWordField ( SourceBuffer, // TermArg => Buffer ByteIndex, // TermArg => Integer QWordFieldName // NameString ) NameString := <RootChar NamePath> | <ParentPrefixChar PrefixPath NamePath> | NonEmptyNamePath > > + aml_append(method, aml_return(aml_name("RET"))); > > + ... > > + field = aml_create_dword_field(aml_local(3), aml_int(0), > > "STTS"); > > + aml_append(method, field); > > + aml_append(method, > > aml_return(aml_to_integer(aml_name("STTS")))); > > why do you need explicitly convert DWORD field to integer? > it should be fine to return STTS directly (implicit conversion should > take care of the rest) Explicit convert eases my anxiety on uncertainty. ;) > > > + aml_append(nvdimm_dev, method); > > + ...
On Fri, 16 Sep 2022 10:27:08 +0800 Robert Hoo <robert.hu@linux.intel.com> wrote: > On Fri, 2022-09-09 at 15:39 +0200, Igor Mammedov wrote: > ... > > looks more or less fine except of excessive use of named variables > > which creates global scope variables. > > > > I'd suggest to store temporary buffers/packages in LocalX variales, > > you should be able to do that for everything modulo > > aml_create_dword_field(). > > > > see an example below > > > ... > > > > > > + /* > > > + * ACPI v6.4: Section 6.5.10 NVDIMM Label Methods > > > + */ > > > + /* _LSI */ > > > + method = aml_method("_LSI", 0, AML_SERIALIZED); > > > + com_call = aml_call5(NVDIMM_COMMON_DSM, > > > + aml_touuid(NVDIMM_DEVICE_DSM_UUID), > > > + aml_int(1), aml_int(4), aml_int(0), > > > + aml_int(handle)); > > > + aml_append(method, aml_store(com_call, aml_local(0))); > > > + > > > + aml_append(method, aml_create_dword_field(aml_local(0), > > > + aml_int(0), > > > "STTS")); > > > + aml_append(method, aml_create_dword_field(aml_local(0), > > > aml_int(4), > > > + "SLSA")); > > > + aml_append(method, aml_create_dword_field(aml_local(0), > > > aml_int(8), > > > + "MAXT")); > > > + > > > + pkg = aml_package(3); > > > + aml_append(pkg, aml_name("STTS")); > > > + aml_append(pkg, aml_name("SLSA")); > > > + aml_append(pkg, aml_name("MAXT")); > > > + aml_append(method, aml_name_decl("RET", pkg)); > > > > ex: put it in local instead of named variable and return that > > the same applies to other named temporary named variables. > > > Fine, get your point now. > In ASL it will look like this: > Local1 = Package (0x3) {STTS, SLSA, MAXT} > Return (Local1) > > But as for > CreateDWordField (Local0, Zero, STTS) // Status > CreateDWordField (Local0, 0x04, SLSA) // SizeofLSA > CreateDWordField (Local0, 0x08, MAXT) // Max Trans > > I cannot figure out how to substitute with LocalX. Can you shed more > light? Leave this as is, there is no way to make it anonymous/local with FooField. (well one might try to use Index and copy field's bytes into a buffer and then explicitly convert to Integer, but that's a rather convoluted way around limitation so I'd not go this route) > > CreateQWordFieldTerm := > CreateQWordField ( > SourceBuffer, // TermArg => Buffer > ByteIndex, // TermArg => Integer > QWordFieldName // NameString > ) > NameString := > <RootChar NamePath> | <ParentPrefixChar PrefixPath NamePath> | > NonEmptyNamePath > > > > + aml_append(method, aml_return(aml_name("RET"))); > > > + > ... > > > + field = aml_create_dword_field(aml_local(3), aml_int(0), > > > "STTS"); > > > + aml_append(method, field); > > > + aml_append(method, > > > aml_return(aml_to_integer(aml_name("STTS")))); > > > > why do you need explicitly convert DWORD field to integer? > > it should be fine to return STTS directly (implicit conversion should > > take care of the rest) > > Explicit convert eases my anxiety on uncertainty. ;) > > > > > > + aml_append(nvdimm_dev, method); > > > + > ... >
On Fri, 2022-09-16 at 09:37 +0200, Igor Mammedov wrote: > > Fine, get your point now. > > In ASL it will look like this: > > Local1 = Package (0x3) {STTS, SLSA, MAXT} > > Return (Local1) > > > > > > But as for > > CreateDWordField (Local0, Zero, STTS) // > > Status > > CreateDWordField (Local0, 0x04, SLSA) // > > SizeofLSA > > CreateDWordField (Local0, 0x08, MAXT) // Max > > Trans > > > > I cannot figure out how to substitute with LocalX. Can you shed > > more > > light? > > Leave this as is, there is no way to make it anonymous/local with > FooField. > > (well one might try to use Index and copy field's bytes into a buffer > and > then explicitly convert to Integer, but that's a rather convoluted > way > around limitation so I'd not go this route) > OK, pls. take a look, how about this? Method (_LSI, 0, Serialized) // _LSI: Label Storage Information { Local0 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), 0x02, 0x04, Zero, One) // Buffer CreateDWordField (Local0, Zero, STTS) // Status CreateDWordField (Local0, 0x04, SLSA) // Size of LSA CreateDWordField (Local0, 0x08, MAXT) // Max Transfer Size Local1 = Package (0x3) {STTS, SLSA, MAXT} Return (Local1) } Method (_LSR, 2, Serialized) // _LSR: Label Storage Read { Name (INPT, Buffer(8) {}) CreateDWordField (INPT, Zero, OFST); CreateDWordField (INPT, 4, LEN); OFST = Arg0 LEN = Arg1 Local0 = Package (0x01) {INPT} Local3 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), 0x02, 0x05, Local0, One) CreateDWordField (Local3, Zero, STTS) CreateField (Local3, 32, LEN << 3, LDAT) Local1 = Package (0x2) {STTS, toBuffer(LDAT)} Return (Local1) } Method (_LSW, 3, Serialized) // _LSW: Label Storage Write { Local2 = Arg2 Name (INPT, Buffer(8) {}) CreateDWordField (INPT, Zero, OFST); CreateDWordField (INPT, 4, TLEN); OFST = Arg0 TLEN = Arg1 Concatenate(INPT, Local2, INPT) Local0 = Package (0x01) { INPT } Local3 = NCAL (ToUUID ("4309ac30-0d11-11e4-9191-0800200c9a66"), 0x02, 0x06, Local0, One) CreateDWordField (Local3, 0, STTS) Return (STTS) }
On Fri, 16 Sep 2022 21:15:35 +0800 Robert Hoo <robert.hu@linux.intel.com> wrote: > On Fri, 2022-09-16 at 09:37 +0200, Igor Mammedov wrote: > > > > Fine, get your point now. > > > In ASL it will look like this: > > > Local1 = Package (0x3) {STTS, SLSA, MAXT} > > > Return (Local1) > > > > > > > > > > But as for > > > CreateDWordField (Local0, Zero, STTS) // > > > Status > > > CreateDWordField (Local0, 0x04, SLSA) // > > > SizeofLSA > > > CreateDWordField (Local0, 0x08, MAXT) // Max > > > Trans > > > > > > I cannot figure out how to substitute with LocalX. Can you shed > > > more > > > light? > > > > Leave this as is, there is no way to make it anonymous/local with > > FooField. > > > > (well one might try to use Index and copy field's bytes into a buffer > > and > > then explicitly convert to Integer, but that's a rather convoluted > > way > > around limitation so I'd not go this route) > > > OK, pls. take a look, how about this? > > Method (_LSI, 0, Serialized) // _LSI: Label Storage Information > { > Local0 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), > 0x02, 0x04, Zero, One) // Buffer > CreateDWordField (Local0, Zero, STTS) // Status > CreateDWordField (Local0, 0x04, SLSA) // Size of LSA > CreateDWordField (Local0, 0x08, MAXT) // Max Transfer Size > Local1 = Package (0x3) {STTS, SLSA, MAXT} > Return (Local1) > } > > Method (_LSR, 2, Serialized) // _LSR: Label Storage Read > { > Name (INPT, Buffer(8) {}) > CreateDWordField (INPT, Zero, OFST); > CreateDWordField (INPT, 4, LEN); why do you have to create and use INPT, wouldn't local be enough to keep the buffer? > OFST = Arg0 > LEN = Arg1 > Local0 = Package (0x01) {INPT} > Local3 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), > 0x02, 0x05, Local0, One) > CreateDWordField (Local3, Zero, STTS) > CreateField (Local3, 32, LEN << 3, LDAT) > Local1 = Package (0x2) {STTS, toBuffer(LDAT)} > Return (Local1) > } > > Method (_LSW, 3, Serialized) // _LSW: Label Storage Write > { > Local2 = Arg2 > Name (INPT, Buffer(8) {}) ditto > CreateDWordField (INPT, Zero, OFST); > CreateDWordField (INPT, 4, TLEN); > OFST = Arg0 > TLEN = Arg1 > Concatenate(INPT, Local2, INPT) > Local0 = Package (0x01) > { > INPT > } > Local3 = NCAL (ToUUID ("4309ac30-0d11-11e4-9191-0800200c9a66"), > 0x02, 0x06, Local0, One) > CreateDWordField (Local3, 0, STTS) > Return (STTS) > } > > >
On Tue, 2022-09-20 at 11:13 +0200, Igor Mammedov wrote: > On Fri, 16 Sep 2022 21:15:35 +0800 > Robert Hoo <robert.hu@linux.intel.com> wrote: > > > On Fri, 2022-09-16 at 09:37 +0200, Igor Mammedov wrote: > > > > > > Fine, get your point now. > > > > In ASL it will look like this: > > > > Local1 = Package (0x3) {STTS, SLSA, MAXT} > > > > Return (Local1) > > > > > > > > > > > > > > But as for > > > > CreateDWordField (Local0, Zero, STTS) // > > > > Status > > > > CreateDWordField (Local0, 0x04, SLSA) // > > > > SizeofLSA > > > > CreateDWordField (Local0, 0x08, MAXT) // > > > > Max > > > > Trans > > > > > > > > I cannot figure out how to substitute with LocalX. Can you shed > > > > more > > > > light? > > > > > > Leave this as is, there is no way to make it anonymous/local with > > > FooField. > > > > > > (well one might try to use Index and copy field's bytes into a > > > buffer > > > and > > > then explicitly convert to Integer, but that's a rather > > > convoluted > > > way > > > around limitation so I'd not go this route) > > > > > > > OK, pls. take a look, how about this? > > > > Method (_LSI, 0, Serialized) // _LSI: Label Storage Information > > { > > Local0 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), > > 0x02, 0x04, Zero, One) // Buffer > > CreateDWordField (Local0, Zero, STTS) // Status > > CreateDWordField (Local0, 0x04, SLSA) // Size of LSA > > CreateDWordField (Local0, 0x08, MAXT) // Max Transfer Size > > Local1 = Package (0x3) {STTS, SLSA, MAXT} > > Return (Local1) > > } > > > > Method (_LSR, 2, Serialized) // _LSR: Label Storage Read > > { > > Name (INPT, Buffer(8) {}) > > CreateDWordField (INPT, Zero, OFST); > > CreateDWordField (INPT, 4, LEN); > > why do you have to create and use INPT, wouldn't local be enough to > keep the buffer? If substitute INPT with LocalX, then later Local0 = Package (0x01) {LocalX} isn't accepted. PackageElement := DataObject | NameString > > > OFST = Arg0 > > LEN = Arg1 > > Local0 = Package (0x01) {INPT} > > Local3 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), > > 0x02, 0x05, Local0, One) > > CreateDWordField (Local3, Zero, STTS) > > CreateField (Local3, 32, LEN << 3, LDAT) > > Local1 = Package (0x2) {STTS, toBuffer(LDAT)} > > Return (Local1) > > } > > > > Method (_LSW, 3, Serialized) // _LSW: Label Storage Write > > { > > Local2 = Arg2 > > Name (INPT, Buffer(8) {}) > > ditto > > > CreateDWordField (INPT, Zero, OFST); > > CreateDWordField (INPT, 4, TLEN); > > OFST = Arg0 > > TLEN = Arg1 > > Concatenate(INPT, Local2, INPT) > > Local0 = Package (0x01) > > { > > INPT > > } > > Local3 = NCAL (ToUUID ("4309ac30-0d11-11e4-9191-0800200c9a66"), > > 0x02, 0x06, Local0, One) > > CreateDWordField (Local3, 0, STTS) > > Return (STTS) > > }
On Tue, 20 Sep 2022 20:28:31 +0800 Robert Hoo <robert.hu@linux.intel.com> wrote: > On Tue, 2022-09-20 at 11:13 +0200, Igor Mammedov wrote: > > On Fri, 16 Sep 2022 21:15:35 +0800 > > Robert Hoo <robert.hu@linux.intel.com> wrote: > > > > > On Fri, 2022-09-16 at 09:37 +0200, Igor Mammedov wrote: > > > > > > > > Fine, get your point now. > > > > > In ASL it will look like this: > > > > > Local1 = Package (0x3) {STTS, SLSA, MAXT} > > > > > Return (Local1) > > > > > > > > > > > > > > > > > > But as for > > > > > CreateDWordField (Local0, Zero, STTS) // > > > > > Status > > > > > CreateDWordField (Local0, 0x04, SLSA) // > > > > > SizeofLSA > > > > > CreateDWordField (Local0, 0x08, MAXT) // > > > > > Max > > > > > Trans > > > > > > > > > > I cannot figure out how to substitute with LocalX. Can you shed > > > > > more > > > > > light? > > > > > > > > Leave this as is, there is no way to make it anonymous/local with > > > > FooField. > > > > > > > > (well one might try to use Index and copy field's bytes into a > > > > buffer > > > > and > > > > then explicitly convert to Integer, but that's a rather > > > > convoluted > > > > way > > > > around limitation so I'd not go this route) > > > > > > > > > > OK, pls. take a look, how about this? > > > > > > Method (_LSI, 0, Serialized) // _LSI: Label Storage Information > > > { > > > Local0 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), > > > 0x02, 0x04, Zero, One) // Buffer > > > CreateDWordField (Local0, Zero, STTS) // Status > > > CreateDWordField (Local0, 0x04, SLSA) // Size of LSA > > > CreateDWordField (Local0, 0x08, MAXT) // Max Transfer Size > > > Local1 = Package (0x3) {STTS, SLSA, MAXT} > > > Return (Local1) > > > } > > > > > > Method (_LSR, 2, Serialized) // _LSR: Label Storage Read > > > { > > > Name (INPT, Buffer(8) {}) > > > CreateDWordField (INPT, Zero, OFST); > > > CreateDWordField (INPT, 4, LEN); > > > > why do you have to create and use INPT, wouldn't local be enough to > > keep the buffer? > > If substitute INPT with LocalX, then later > Local0 = Package (0x01) {LocalX} isn't accepted. > > PackageElement := > DataObject | NameString ok, then respin series and lets get it some testing. BTW: it looks like Windows Server starting from v2019 has support for NVDIMM-P devices which came with 'Optane DC Persistent Memory Modules' but it fails to recognize NVDIMMs in QEMU (complaining something about wrong target). Perhaps you can reach someone with Optane/ACPI expertise within your org and try to fix QEMU side. > > > > > OFST = Arg0 > > > LEN = Arg1 > > > Local0 = Package (0x01) {INPT} > > > Local3 = NCAL (ToUUID("4309ac30-0d11-11e4-9191-0800200c9a66"), > > > 0x02, 0x05, Local0, One) > > > CreateDWordField (Local3, Zero, STTS) > > > CreateField (Local3, 32, LEN << 3, LDAT) > > > Local1 = Package (0x2) {STTS, toBuffer(LDAT)} > > > Return (Local1) > > > } > > > > > > Method (_LSW, 3, Serialized) // _LSW: Label Storage Write > > > { > > > Local2 = Arg2 > > > Name (INPT, Buffer(8) {}) > > > > ditto > > > > > CreateDWordField (INPT, Zero, OFST); > > > CreateDWordField (INPT, 4, TLEN); > > > OFST = Arg0 > > > TLEN = Arg1 > > > Concatenate(INPT, Local2, INPT) > > > Local0 = Package (0x01) > > > { > > > INPT > > > } > > > Local3 = NCAL (ToUUID ("4309ac30-0d11-11e4-9191-0800200c9a66"), > > > 0x02, 0x06, Local0, One) > > > CreateDWordField (Local3, 0, STTS) > > > Return (STTS) > > > } > >
On Wed, 2022-09-21 at 15:29 +0200, Igor Mammedov wrote: > On Tue, 20 Sep 2022 20:28:31 +0800 > Robert Hoo <robert.hu@linux.intel.com> wrote: > > > On Tue, 2022-09-20 at 11:13 +0200, Igor Mammedov wrote: > > > On Fri, 16 Sep 2022 21:15:35 +0800 > > > Robert Hoo <robert.hu@linux.intel.com> wrote: > > > > > > > On Fri, 2022-09-16 at 09:37 +0200, Igor Mammedov wrote: > > > > > > > > > > Fine, get your point now. > > > > > > In ASL it will look like this: > > > > > > Local1 = Package (0x3) {STTS, SLSA, > > > > > > MAXT} > > > > > > Return (Local1) > > > > > > > > > > > > > > > > > > > > > > But as for > > > > > > CreateDWordField (Local0, Zero, > > > > > > STTS) // > > > > > > Status > > > > > > CreateDWordField (Local0, 0x04, > > > > > > SLSA) // > > > > > > SizeofLSA > > > > > > CreateDWordField (Local0, 0x08, > > > > > > MAXT) // > > > > > > Max > > > > > > Trans > > > > > > > > > > > > I cannot figure out how to substitute with LocalX. Can you > > > > > > shed > > > > > > more > > > > > > light? > > > > > > > > > > Leave this as is, there is no way to make it anonymous/local > > > > > with > > > > > FooField. > > > > > > > > > > (well one might try to use Index and copy field's bytes into > > > > > a > > > > > buffer > > > > > and > > > > > then explicitly convert to Integer, but that's a rather > > > > > convoluted > > > > > way > > > > > around limitation so I'd not go this route) > > > > > > > > > > > > > OK, pls. take a look, how about this? > > > > > > > > Method (_LSI, 0, Serialized) // _LSI: Label Storage > > > > Information > > > > { > > > > Local0 = NCAL (ToUUID("4309ac30-0d11-11e4-9191- > > > > 0800200c9a66"), > > > > 0x02, 0x04, Zero, One) // Buffer > > > > CreateDWordField (Local0, Zero, STTS) // Status > > > > CreateDWordField (Local0, 0x04, SLSA) // Size of LSA > > > > CreateDWordField (Local0, 0x08, MAXT) // Max Transfer Size > > > > Local1 = Package (0x3) {STTS, SLSA, MAXT} > > > > Return (Local1) > > > > } > > > > > > > > Method (_LSR, 2, Serialized) // _LSR: Label Storage Read > > > > { > > > > Name (INPT, Buffer(8) {}) > > > > CreateDWordField (INPT, Zero, OFST); > > > > CreateDWordField (INPT, 4, LEN); > > > > > > why do you have to create and use INPT, wouldn't local be enough > > > to > > > keep the buffer? > > > > If substitute INPT with LocalX, then later > > Local0 = Package (0x01) {LocalX} isn't accepted. > > > > PackageElement := > > DataObject | NameString > > ok, then respin series and lets get it some testing. Sure. I'd also like it to go through your tests, though I had done some ordinary tests like guest create/delete/init-labels on vNVDIMM. > > BTW: > it looks like Windows Server starting from v2019 has support for > NVDIMM-P devices which came with 'Optane DC Persistent Memory > Modules' > but it fails to recognize NVDIMMs in QEMU (complaining something > about > wrong target). Perhaps you can reach someone with Optane/ACPI > expertise within your org and try to fix QEMU side. Yes, it's a known gap there. I will try that once I had some time and resource. > > > > > > > > OFST = Arg0 > > > > LEN = Arg1 > > > > Local0 = Package (0x01) {INPT} > > > > Local3 = NCAL (ToUUID("4309ac30-0d11-11e4-9191- > > > > 0800200c9a66"), > > > > 0x02, 0x05, Local0, One) > > > > CreateDWordField (Local3, Zero, STTS) > > > > CreateField (Local3, 32, LEN << 3, LDAT) > > > > Local1 = Package (0x2) {STTS, toBuffer(LDAT)} > > > > Return (Local1) > > > > } > > > > > > > > Method (_LSW, 3, Serialized) // _LSW: Label Storage Write > > > > { > > > > Local2 = Arg2 > > > > Name (INPT, Buffer(8) {}) > > > > > > ditto > > > > > > > CreateDWordField (INPT, Zero, OFST); > > > > CreateDWordField (INPT, 4, TLEN); > > > > OFST = Arg0 > > > > TLEN = Arg1 > > > > Concatenate(INPT, Local2, INPT) > > > > Local0 = Package (0x01) > > > > { > > > > INPT > > > > } > > > > Local3 = NCAL (ToUUID ("4309ac30-0d11-11e4-9191- > > > > 0800200c9a66"), > > > > 0x02, 0x06, Local0, One) > > > > CreateDWordField (Local3, 0, STTS) > > > > Return (STTS) > > > > } > > > > > >
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index afff911c1e..516acfe53b 100644 --- a/hw/acpi/nvdimm.c +++ b/hw/acpi/nvdimm.c @@ -1243,6 +1243,7 @@ static void nvdimm_build_fit(Aml *dev) static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t ram_slots) { uint32_t slot; + Aml *method, *pkg, *field, *com_call; for (slot = 0; slot < ram_slots; slot++) { uint32_t handle = nvdimm_slot_to_handle(slot); @@ -1260,6 +1261,96 @@ static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t ram_slots) */ aml_append(nvdimm_dev, aml_name_decl("_ADR", aml_int(handle))); + /* + * ACPI v6.4: Section 6.5.10 NVDIMM Label Methods + */ + /* _LSI */ + method = aml_method("_LSI", 0, AML_SERIALIZED); + com_call = aml_call5(NVDIMM_COMMON_DSM, + aml_touuid(NVDIMM_DEVICE_DSM_UUID), + aml_int(1), aml_int(4), aml_int(0), + aml_int(handle)); + aml_append(method, aml_store(com_call, aml_local(0))); + + aml_append(method, aml_create_dword_field(aml_local(0), + aml_int(0), "STTS")); + aml_append(method, aml_create_dword_field(aml_local(0), aml_int(4), + "SLSA")); + aml_append(method, aml_create_dword_field(aml_local(0), aml_int(8), + "MAXT")); + + pkg = aml_package(3); + aml_append(pkg, aml_name("STTS")); + aml_append(pkg, aml_name("SLSA")); + aml_append(pkg, aml_name("MAXT")); + aml_append(method, aml_name_decl("RET", pkg)); + aml_append(method, aml_return(aml_name("RET"))); + + aml_append(nvdimm_dev, method); + + /* _LSR */ + method = aml_method("_LSR", 2, AML_SERIALIZED); + aml_append(method, aml_name_decl("INPT", aml_buffer(8, NULL))); + + aml_append(method, aml_create_dword_field(aml_name("INPT"), + aml_int(0), "OFST")); + aml_append(method, aml_create_dword_field(aml_name("INPT"), + aml_int(4), "LEN")); + aml_append(method, aml_store(aml_arg(0), aml_name("OFST"))); + aml_append(method, aml_store(aml_arg(1), aml_name("LEN"))); + + pkg = aml_package(1); + aml_append(pkg, aml_name("INPT")); + aml_append(method, aml_name_decl("PKG1", pkg)); + + com_call = aml_call5(NVDIMM_COMMON_DSM, + aml_touuid(NVDIMM_DEVICE_DSM_UUID), + aml_int(1), aml_int(5), aml_name("PKG1"), + aml_int(handle)); + aml_append(method, aml_store(com_call, aml_local(3))); + field = aml_create_dword_field(aml_local(3), aml_int(0), "STTS"); + aml_append(method, field); + field = aml_create_field(aml_local(3), aml_int(32), + aml_shiftleft(aml_name("LEN"), aml_int(3)), + "LDAT"); + aml_append(method, field); + aml_append(method, aml_name_decl("LSA", aml_buffer(0, NULL))); + aml_append(method, aml_to_buffer(aml_name("LDAT"), aml_name("LSA"))); + pkg = aml_package(2); + aml_append(pkg, aml_name("STTS")); + aml_append(pkg, aml_name("LSA")); + aml_append(method, aml_name_decl("RET", pkg)); + aml_append(method, aml_return(aml_name("RET"))); + aml_append(nvdimm_dev, method); + + /* _LSW */ + method = aml_method("_LSW", 3, AML_SERIALIZED); + aml_append(method, aml_store(aml_arg(2), aml_local(2))); + aml_append(method, aml_name_decl("INPT", aml_buffer(8, NULL))); + field = aml_create_dword_field(aml_name("INPT"), + aml_int(0), "OFST"); + aml_append(method, field); + field = aml_create_dword_field(aml_name("INPT"), + aml_int(4), "TLEN"); + aml_append(method, field); + aml_append(method, aml_store(aml_arg(0), aml_name("OFST"))); + aml_append(method, aml_store(aml_arg(1), aml_name("TLEN"))); + + aml_append(method, aml_concatenate(aml_name("INPT"), aml_local(2), + aml_name("INPT"))); + pkg = aml_package(1); + aml_append(pkg, aml_name("INPT")); + aml_append(method, aml_name_decl("PKG1", pkg)); + com_call = aml_call5(NVDIMM_COMMON_DSM, + aml_touuid(NVDIMM_DEVICE_DSM_UUID), + aml_int(1), aml_int(6), aml_name("PKG1"), + aml_int(handle)); + aml_append(method, aml_store(com_call, aml_local(3))); + field = aml_create_dword_field(aml_local(3), aml_int(0), "STTS"); + aml_append(method, field); + aml_append(method, aml_return(aml_to_integer(aml_name("STTS")))); + aml_append(nvdimm_dev, method); + nvdimm_build_device_dsm(nvdimm_dev, handle); aml_append(root_dev, nvdimm_dev); }
Recent ACPI spec [1] has defined NVDIMM Label Methods _LS{I,R,W}, which deprecates corresponding _DSM Functions defined by PMEM _DSM Interface spec [2]. Since the semantics of the new Label Methods are same as old _DSM methods, the implementations here simply wrapper old ones. ASL form diff can be found in next patch of updating golden master binaries. [1] ACPI Spec v6.4, 6.5.10 NVDIMM Label Methods https://uefi.org/sites/default/files/resources/ACPI_Spec_6_4_Jan22.pdf [2] Intel PMEM _DSM Interface Spec v2.0, 3.10 Deprecated Functions https://pmem.io/documents/IntelOptanePMem_DSM_Interface-V2.0.pdf Signed-off-by: Robert Hoo <robert.hu@linux.intel.com> Reviewed-by: Jingqi Liu <jingqi.liu@intel.com> --- hw/acpi/nvdimm.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+)