diff options
author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2024-04-23 23:46:13 +0300 |
---|---|---|
committer | Hans de Goede <hdegoede@redhat.com> | 2024-04-29 14:01:08 +0300 |
commit | c8405cc815151a8b2fa6f7510ede8256228e45da (patch) | |
tree | cfbc29fbd69a1104964678fad7eba97883f2859a /drivers/platform/x86/intel | |
parent | 1192534407d0f8ab9a0503052777260ae74968c3 (diff) | |
download | linux-c8405cc815151a8b2fa6f7510ede8256228e45da.tar.xz |
platform/x86/intel/tpmi: Add additional TPMI header fields
TPMI information header added additional fields in version 2. Some of the
reserved fields in version 1 are used to define new fields.
Parse new fields and export as part of platform data. These fields include:
- PCI segment ID
- Partition ID of the package: If a package is represented by more than
one PCI device, then partition ID along with cdie_mask, describes the
scope. For example to update get/set properties for a compute die, one
of the PCI MMIO region is selected from the partition ID.
- cdie_mask: Mask of all compute dies in this partition.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240423204619.3946901-5-srinivas.pandruvada@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/intel')
-rw-r--r-- | drivers/platform/x86/intel/tpmi.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/platform/x86/intel/tpmi.c b/drivers/platform/x86/intel/tpmi.c index a5bcb77bcb35..6c0cbccd80bb 100644 --- a/drivers/platform/x86/intel/tpmi.c +++ b/drivers/platform/x86/intel/tpmi.c @@ -128,6 +128,9 @@ struct intel_tpmi_info { * @dev: PCI device number * @bus: PCI bus number * @pkg: CPU Package id + * @segment: PCI segment id + * @partition: Package Partition id + * @cdie_mask: Bitmap of compute dies in the current partition * @reserved: Reserved for future use * @lock: When set to 1 the register is locked and becomes read-only * until next reset. Not for use by the OS driver. @@ -139,7 +142,10 @@ struct tpmi_info_header { u64 dev:5; u64 bus:8; u64 pkg:8; - u64 reserved:39; + u64 segment:8; + u64 partition:2; + u64 cdie_mask:16; + u64 reserved:13; u64 lock:1; } __packed; @@ -667,6 +673,7 @@ static int tpmi_create_devices(struct intel_tpmi_info *tpmi_info) #define TPMI_INFO_BUS_INFO_OFFSET 0x08 #define TPMI_INFO_MAJOR_VERSION 0x00 +#define TPMI_INFO_MINOR_VERSION 0x02 static int tpmi_process_info(struct intel_tpmi_info *tpmi_info, struct intel_tpmi_pm_feature *pfs) @@ -693,6 +700,12 @@ static int tpmi_process_info(struct intel_tpmi_info *tpmi_info, tpmi_info->plat_info.device_number = header.dev; tpmi_info->plat_info.function_number = header.fn; + if (TPMI_MINOR_VERSION(feature_header) >= TPMI_INFO_MINOR_VERSION) { + tpmi_info->plat_info.cdie_mask = header.cdie_mask; + tpmi_info->plat_info.partition = header.partition; + tpmi_info->plat_info.segment = header.segment; + } + error_info_header: iounmap(info_mem); |