| Message ID | 20190710081024.6054-1-acelan.kao@canonical.com |
|---|---|
| State | New |
| Headers | show |
| Series | [SRU,PULL,OEM-OSP1-B] backport pmc_core | expand |
On 10.7.2019 11.10, AceLan Kao wrote: > BugLink: https://bugs.launchpad.net/bugs/1836012 > > [Impact] > The pmc_core interface /sys/kernel/debug/pmc_core/package_cstate_show > indicates which PC state the system enterred. Currently, powertop can't > show correct PC state, it only shows PC1 ~ PC3, so we need this interface > to check the states. > > [Fix] > Backport pmc_core commits from upstream. applied to osp1 oem-next, thanks
On 11.7.2019 9.55, Timo Aaltonen wrote: > On 10.7.2019 11.10, AceLan Kao wrote: >> BugLink: https://bugs.launchpad.net/bugs/1836012 >> >> [Impact] >> The pmc_core interface /sys/kernel/debug/pmc_core/package_cstate_show >> indicates which PC state the system enterred. Currently, powertop can't >> show correct PC state, it only shows PC1 ~ PC3, so we need this interface >> to check the states. >> >> [Fix] >> Backport pmc_core commits from upstream. > > applied to osp1 oem-next, thanks with a proper subject now
BugLink: https://bugs.launchpad.net/bugs/1836012 [Impact] The pmc_core interface /sys/kernel/debug/pmc_core/package_cstate_show indicates which PC state the system enterred. Currently, powertop can't show correct PC state, it only shows PC1 ~ PC3, so we need this interface to check the states. [Fix] Backport pmc_core commits from upstream. [Test] Verified on IceLake machines, the interface works. [Regression Potential] Low, the pmc_core is not a new driver, the new commits help to expose the values to sysfs interface. The following changes since commit 41b7edc26d0fc3ead1e5567959ec3fed25378cd8: UBUNTU: Ubuntu-oem-osp1-5.0.0-1013.14 (2019-07-03 10:21:45 +0300) are available in the Git repository at: git://git.launchpad.net/~acelankao/+git/ubuntu-disco pmc_core for you to fetch changes up to be518f06a6334e1bb3d3dd9b22a4c826351bd81c: platform/x86: intel_pmc_core: Allow to dump debug registers on S0ix failure (2019-07-10 16:03:11 +0800) ---------------------------------------------------------------- Guenter Roeck (1): platform/x86: intel_pmc_core: Mark local function static Rajat Jain (3): platform/x86: intel_pmc_core: Avoid a u32 overflow platform/x86: intel_pmc_core: Convert to a platform_driver platform/x86: intel_pmc_core: Allow to dump debug registers on S0ix failure Rajneesh Bhardwaj (5): platform/x86: intel_pmc_core: Fix file permissions for ltr_show platform/x86: intel_pmc_core: Include Reserved IP for LTR platform/x86: intel_pmc_core: Convert to INTEL_CPU_FAM6 macro platform/x86: intel_pmc_core: Add ICL platform support platform/x86: intel_pmc_core: Add Package cstates residency info drivers/platform/x86/intel_pmc_core.c | 290 ++++++++++++++++++++++++++++++---- drivers/platform/x86/intel_pmc_core.h | 14 ++ 2 files changed, 271 insertions(+), 33 deletions(-)