kernel/drivers/platform/x86/intel/pmc/tgl.c, branch linux-6.9.y

Merge tag 'platform-drivers-x86-v6.7-6' into pdx86/for-next

2024-01-02T12:13:01Z

Merge the 'platform-drivers-x86-v6.7-6' fixes into pdx86/for-next so that the "Intel PMC GBE LTR regression" fixes can also be applied to the new Arrow Lake and Lunar Lake platform support code in pdx86/for-next .

platform/x86/intel/pmc: Move GBE LTR ignore to suspend callback

2023-12-29T13:31:22Z

Commit 804951203aa5 ("platform/x86:intel/pmc: Combine core_init() and core_configure()") caused a network performance regression due to the GBE LTR ignore that it added at probe. This was needed in order to allow the SoC to enter the deepest Package C state. To fix the regression and at least support PC10 during suspend, move the LTR ignore from probe to the suspend callback, and enable it again on resume. This solution will allow PC10 during suspend but restrict Package C entry at runtime to no deeper than PC8/9 while a network cable it attach to the PCH LAN. Fixes: 804951203aa5 ("platform/x86:intel/pmc: Combine core_init() and core_configure()") Signed-off-by: "David E. Box" Link: https://lore.kernel.org/r/20231223032548.1680738-6-david.e.box@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/intel/pmc: Allow reenabling LTRs

2023-12-29T13:31:15Z

Commit 804951203aa5 ("platform/x86:intel/pmc: Combine core_init() and core_configure()") caused a network performance regression due to the GBE LTR ignore that it added during probe. The fix will move the ignore to occur at suspend-time (so as to not affect suspend power). This will require the ability to enable the LTR again on resume. Modify pmc_core_send_ltr_ignore() to allow enabling an LTR. Fixes: 804951203aa5 ("platform/x86:intel/pmc: Combine core_init() and core_configure()") Signed-off-by: "David E. Box" Link: https://lore.kernel.org/r/20231223032548.1680738-5-david.e.box@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/intel/pmc: Add regmap for Tiger Lake H PCH

2023-12-19T15:48:20Z

Tiger Lake H PCH is same as Tiger Lake LP PCH from the driver perspective with the addition of the PSON residency counter. Add regmap for TGP H to add PSON register offsets for Tiger Lake H PCH. Signed-off-by: Rajvi Jingar Link: https://lore.kernel.org/r/20231219042216.2592029-3-rajvi.jingar@linux.intel.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

platform/x86:intel/pmc: Call pmc_get_low_power_modes from platform init

2023-12-04T13:53:43Z

In order to setup a table of low power mode requirements for Meteor Lake, pmc_core_get_low_power_modes() will need to be run from platform init code so that the enabled modes are known, allowing the use of the pmc_for_each_mode helper. Make the function global and call it from the platform init code. Signed-off-by: Xi Pardee Signed-off-by: David E. Box Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20231129222132.2331261-12-david.e.box@linux.intel.com Signed-off-by: Hans de Goede

platform/x86:intel/pmc: Add support to handle multiple PMCs

2023-06-20T10:51:08Z

To support platforms with multiple PMCs, add a PMC device structure to support each PMC instance. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20230613225347.2720665-4-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede

platform/x86:intel/pmc: Combine core_init() and core_configure()

2023-06-20T10:51:08Z

Combine core_init() and core_configure() functions to have a cleaner setup for platforms. Signed-off-by: Xi Pardee Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20230613225347.2720665-3-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede

platform/x86: intel/pmc: Switch to use acpi_evaluate_dsm_typed()

2023-02-02T21:48:20Z

The acpi_evaluate_dsm_typed() provides a way to check the type of the object evaluated by _DSM call. Use it instead of open coded variant. Signed-off-by: Andy Shevchenko Reviewed-by: Rajneesh Bhardwaj Link: https://lore.kernel.org/r/20230118095440.41634-1-andriy.shevchenko@linux.intel.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

platform/x86: intel/pmc: Relocate Tiger Lake PCH support

2022-11-21T09:42:47Z

Create tgl.c for Tiger Lake PCH specific structures and init(). This file supports Tiger Lake, Elkhart Lake, Rocket Lake, Alder Lake mobile, Alder Lake N and Raptor Lake P platforms. There are no functional changes involved. Cc: David E Box Reviewed-by: "David E. Box" Signed-off-by: Gayatri Kammela Signed-off-by: "David E. Box" Link: https://lore.kernel.org/r/20221114183257.2067662-7-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede