Commit 54b3cd55 authored by Daniel Tang's avatar Daniel Tang Committed by Rafael J. Wysocki
Browse files

powercap: intel_rapl: Add PL4 support for Ice Lake 

Microsoft Surface Pro 7 firmware throttles the processor upon
boot/resume. Userspace needs to be able to restore the correct value.

Link: https://github.com/linux-surface/linux-surface/issues/706


Signed-off-by: default avatarDaniel Tang <danielzgtg.opensource@gmail.com>
Link: https://patch.msgid.link/6088605.ChMirdbgyp@daniel-desktop3


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 07e5e811

drivers/powercap/intel_rapl_msr.c

+1 −0
Original line number Diff line number Diff line
@@ -162,6 +162,7 @@ static int rapl_msr_write_raw(int cpu, struct reg_action *ra) 


/* List of verified CPUs. */

static const struct x86_cpu_id pl4_support_ids[] = {

	X86_MATCH_VFM(INTEL_ICELAKE_L, NULL),

	X86_MATCH_VFM(INTEL_TIGERLAKE_L, NULL),

	X86_MATCH_VFM(INTEL_ALDERLAKE, NULL),

	X86_MATCH_VFM(INTEL_ALDERLAKE_L, NULL),