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linux/drivers/peci/cpu.c

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peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci: cpu: Fix use-after-free in adev_release() When auxiliary_device_add() returns an error, auxiliary_device_uninit() is called, which causes refcount for device to be decremented and .release callback will be triggered. Because adev_release() re-calls auxiliary_device_uninit(), it will cause use-after-free: [ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15 [ 1269.464007] refcount_t: underflow; use-after-free. Reported-by: Jianglei Nie <niejianglei2021@163.com> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220705101501.298395-1-iwona.winiarska@intel.com
2022-07-05 12:15:01 +02:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci, hwmon: Switch to new Intel CPU model defines Update peci subsystem to use the same vendor-family-model combined definition that core x86 code uses. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20240529171920.62571-1-tony.luck@intel.com Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
2024-05-29 10:19:20 -07:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci, hwmon: Switch to new Intel CPU model defines Update peci subsystem to use the same vendor-family-model combined definition that core x86 code uses. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20240529171920.62571-1-tony.luck@intel.com Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
2024-05-29 10:19:20 -07:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci, hwmon: Switch to new Intel CPU model defines Update peci subsystem to use the same vendor-family-model combined definition that core x86 code uses. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20240529171920.62571-1-tony.luck@intel.com Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
2024-05-29 10:19:20 -07:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci, hwmon: Switch to new Intel CPU model defines Update peci subsystem to use the same vendor-family-model combined definition that core x86 code uses. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20240529171920.62571-1-tony.luck@intel.com Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
2024-05-29 10:19:20 -07:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci, hwmon: Switch to new Intel CPU model defines Update peci subsystem to use the same vendor-family-model combined definition that core x86 code uses. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20240529171920.62571-1-tony.luck@intel.com Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
2024-05-29 10:19:20 -07:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci, hwmon: Switch to new Intel CPU model defines Update peci subsystem to use the same vendor-family-model combined definition that core x86 code uses. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20240529171920.62571-1-tony.luck@intel.com Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
2024-05-29 10:19:20 -07:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00
peci: cpu: Add Intel Sapphire Rapids support Add support for detection of Intel Sapphire Rapids processor based on CPU family & model. Sapphire Rapids Xeon processors with the family set to 6 and the model set to INTEL_FAM6_SAPPHIRERAPIDS_X. The data field for this entry is "spr". Tested the patch series with AST2600 BMC with 4S Intel Sapphire Rapids processors & verified by reading cpu & dimm temperature. Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20230725104354.33920-1-Naresh.Solanki@9elements.com
2023-07-25 12:43:51 +02:00
peci, hwmon: Switch to new Intel CPU model defines Update peci subsystem to use the same vendor-family-model combined definition that core x86 code uses. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20240529171920.62571-1-tony.luck@intel.com Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
2024-05-29 10:19:20 -07:00
peci: cpu: Add Intel Sapphire Rapids support Add support for detection of Intel Sapphire Rapids processor based on CPU family & model. Sapphire Rapids Xeon processors with the family set to 6 and the model set to INTEL_FAM6_SAPPHIRERAPIDS_X. The data field for this entry is "spr". Tested the patch series with AST2600 BMC with 4S Intel Sapphire Rapids processors & verified by reading cpu & dimm temperature. Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20230725104354.33920-1-Naresh.Solanki@9elements.com
2023-07-25 12:43:51 +02:00
peci: Add peci-cpu driver PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 16:36:35 +01:00