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authorKuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>2026-03-31 14:19:44 -0700
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2026-04-01 16:03:04 +0200
commite648c7acc1e3507520af16cf5e6e9472878ec0a4 (patch)
tree9e251a829541181b0d5ebf9d9f945bb6d05c3eb7 /arch/ppc/boot/utils/git@git.tavy.me:linux.git
parent8765715b4e8a1dd24ab5d507c42fc0bcd3d83f5c (diff)
powercap: intel_rapl: Move MSR default settings into MSR interface driver
MSR-specific RAPL defaults differ from those used by the TPMI interface. The MMIO and MSR interfaces shared the same rapl_defaults pointer in the common driver, but MMIO does not require the CPU-specific variations needed by MSR. Keeping these in the common driver adds unnecessary complexity and MSR-specific initialization. Move MSR defaults and CPU matching into the MSR interface driver. Moves ----- * Move rapl_check_unit_atom(), set_floor_freq_atom(), and rapl_compute_time_window_atom() into intel_rapl_msr.c. * Move MSR unit-field GENMASK definitions and local constants. * Move all MSR-related rapl_defaults tables and the CPU-ID matching logic (rapl_ids[]) into the MSR driver. * Move iosf_mbi dependencies (floor-frequency control and related MBI register definitions) as they are MSR-platform specific. Modifications ------------- * Replace the common driver's platform-device manual alloc/add sequence with platform_device_register_data() in the MSR driver to pass matching rapl_defaults as platform_data. * Update MSR driver probe to assign pdev->dev.platform_data to priv->defaults. * Update Atom helper functions to use rp->lead_cpu directly for MSR reads/writes instead of the generic get_rid(). * Update Atom floor frequency logic to access defaults via the package private data pointer. * Convert MSR device creation from fs_initcall() to module_init(). This preserves existing enumeration behavior as the driver was already using module_init(). * Since rapl_ids need to exist after boot, remove __initconst specifier. No functional changes are expected. Co-developed-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20260331211950.3329932-2-sathyanarayanan.kuppuswamy@linux.intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/ppc/boot/utils/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions