Changes in Makefile

cfba129a - platform/x86: amd: Use -y instead of -objs in Makefiles

Tue, 18 Feb 2025 19:41:09 +0000

platform/x86: amd: Use *-y instead of *-objs in MakefilesThe `objs` suffix is reserved for user-space tools. Use the `y` suffixinstead, which is usually used for kernel drivers.While at it, fix alignment in AMD PMC and PMF Makefiles.Suggested-by: Andy Shevchenko Signed-off-by: Kurt Borja Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20250218194113.26589-3-kuurtb@gmail.comReviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen List of files: /linux-6.15/drivers/platform/x86/amd/pmc/Makefile

0e914063 - platform/x86/amd/pmc: Move STB functionality to a new file for better code organization

Fri, 08 Nov 2024 07:08:14 +0000

platform/x86/amd/pmc: Move STB functionality to a new file for better code organizationAs the SoC evolves with each generation, the dynamics between the PMC andSTB layers within the PMC driver are becoming increasingly complex, makingit challenging to manage both in a single file and maintain codereadability.Additionally, during silicon bringup, the PMC functionality is oftenenabled first, with STB functionality added later. This can lead to missedupdates in the driver, potentially causing issues.To address these challenges, it's beneficial to move all STB-relatedchanges to a separate file. This approach will better accommodate newerSoCs, provide improved flexibility for desktop variants, and facilitatethe collection of additional debug information through STB mechanisms.Also the additional checks for entering s2d_init have been moved fromthe PMC probe to amd_pmc_s2d_init(). This adjustment makes more sensefollowing the transfer of code to the separate mp1_stb.c file.Co-developed-by: Sanket Goswami Signed-off-by: Sanket Goswami Signed-off-by: Shyam Sundar S K Link: https://lore.kernel.org/r/20241108070822.3912689-3-Shyam-sundar.S-k@amd.comReviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen List of files: /linux-6.15/drivers/platform/x86/amd/pmc/Makefile

2dc77993 - platform/x86/amd/pmc: Add AMD MP2 STB functionality

Thu, 04 Apr 2024 09:07:02 +0000

platform/x86/amd/pmc: Add AMD MP2 STB functionalityAMD MP2 STB function provides a data buffer used to log debug informationabout the system execution during S2Idle suspend/resume.A data buffer known as the STB (Smart Trace Buffer) is a circular bufferwhich is a low-level log to assist in debugging by providing insightsinto any potential hangs or stalls that may occur during the S2Idlesuspend/resume processes.The current PMC driver retrieves STB data from MP1, but there can bescenarios where MP1 might hang or become unresponsive, leading to theloss of critical data present in the STB buffer. This defeats the purposeof the STB buffer, which was originally meant to help identify systemfailures.This feature creates stb_read_previous_boot debugfs allows users toretrieve the STB log from MP2 specifically from the last occurrence ofthe S2Idle suspend/resume. A userspace daemon can access STB log of lastS2Idle suspend/resume which can help to troubleshoot potential issuesrelated to hangs or stalls during the S2Idle suspend/resume sequence.Reviewed-by: Shyam Sundar S K Signed-off-by: Basavaraj Natikar Reviewed-by: Kuppuswamy Sathyanarayanan Link: https://lore.kernel.org/r/20240404090702.325838-1-Basavaraj.Natikar@amd.comSigned-off-by: Hans de Goede List of files: /linux-6.15/drivers/platform/x86/amd/pmc/Makefile

92c2fb8f - platform/x86/amd/pmc: Move PMC driver to separate directory

Fri, 11 Aug 2023 11:21:13 +0000

platform/x86/amd/pmc: Move PMC driver to separate directoryWith latest commits having PMC code spread across multiple files, it wouldbe easier to maintain them in a separate directory under amd/pmc.Co-developed-by: Sanket Goswami Signed-off-by: Sanket Goswami Signed-off-by: Shyam Sundar S K Link: https://lore.kernel.org/r/20230811112116.2279419-2-Shyam-sundar.S-k@amd.comReviewed-by: Hans de Goede Signed-off-by: Hans de Goede List of files: /linux-6.15/drivers/platform/x86/amd/pmc/Makefile

Changes in Makefile

cfba129a - platform/x86: amd: Use *-y instead of *-objs in Makefiles

0e914063 - platform/x86/amd/pmc: Move STB functionality to a new file for better code organization

2dc77993 - platform/x86/amd/pmc: Add AMD MP2 STB functionality

92c2fb8f - platform/x86/amd/pmc: Move PMC driver to separate directory

cfba129a - platform/x86: amd: Use -y instead of -objs in Makefiles