From: Igor Mammedov <imammedo@redhat.com>
To: Robert Hoo <robert.hu@linux.intel.com>
Cc: mst@redhat.com, xiaoguangrong.eric@gmail.com, ani@anisinha.ca,
jingqi.liu@intel.com, qemu-devel@nongnu.org, robert.hu@intel.com
Subject: Re: [PATCH v4 4/5] acpi/nvdimm: Implement ACPI NVDIMM Label Methods
Date: Thu, 20 Oct 2022 13:45:06 +0200 [thread overview]
Message-ID: <20221020134506.64647015@redhat.com> (raw)
In-Reply-To: <20220922122155.1326543-5-robert.hu@linux.intel.com>
On Thu, 22 Sep 2022 20:21:54 +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 almost 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: Igor Mammedov <imammedo@redhat.com>
> ---
> hw/acpi/nvdimm.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 95 insertions(+)
>
> diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
> index afff911c1e..a3b25a92f3 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 +1261,100 @@ 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_store(pkg, aml_local(1)));
> + aml_append(method, aml_return(aml_local(1)));
> +
> + 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_store(pkg, aml_local(0)));
> +
> + com_call = aml_call5(NVDIMM_COMMON_DSM,
> + aml_touuid(NVDIMM_DEVICE_DSM_UUID),
> + aml_int(1), aml_int(5), aml_local(0),
> + 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_store(pkg, aml_local(1)));
> + aml_append(method, aml_return(aml_local(1)));
> +
> + 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_store(pkg, aml_local(0)));
> + com_call = aml_call5(NVDIMM_COMMON_DSM,
> + aml_touuid(NVDIMM_DEVICE_DSM_UUID),
> + aml_int(1), aml_int(6), aml_local(0),
> + 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_name("STTS")));
> +
> + aml_append(nvdimm_dev, method);
> +
> nvdimm_build_device_dsm(nvdimm_dev, handle);
> aml_append(root_dev, nvdimm_dev);
> }
next prev parent reply other threads:[~2022-10-20 14:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-22 12:21 [PATCH v4 0/5] Support ACPI NVDIMM Label Methods Robert Hoo
2022-09-22 12:21 ` [PATCH v4 1/5] tests/acpi: allow SSDT changes Robert Hoo
2022-09-22 12:21 ` [PATCH v4 2/5] acpi/ssdt: Fix aml_or() and aml_and() in if clause Robert Hoo
2022-09-22 12:21 ` [PATCH v4 3/5] acpi/nvdimm: define macro for NVDIMM Device _DSM Robert Hoo
2022-09-22 12:21 ` [PATCH v4 4/5] acpi/nvdimm: Implement ACPI NVDIMM Label Methods Robert Hoo
2022-10-20 11:45 ` Igor Mammedov [this message]
2022-09-22 12:21 ` [PATCH v4 5/5] test/acpi/bios-tables-test: SSDT: update golden master binaries Robert Hoo
2022-09-22 12:29 ` Robert Hoo
2022-09-26 13:22 ` Igor Mammedov
2022-09-27 0:30 ` Robert Hoo
2022-10-07 13:27 ` Robert Hoo
2022-10-20 0:48 ` Robert Hoo
2022-10-20 11:48 ` Igor Mammedov
2022-10-20 12:01 ` Michael S. Tsirkin
2022-10-20 13:11 ` Igor Mammedov
2022-10-26 14:45 ` Michael S. Tsirkin
2022-10-27 0:49 ` Robert Hoo
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