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| author | David E. Box <david.e.box@linux.intel.com> | 2023-11-30 01:21:31 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-12-04 16:53:43 +0300 |
| commit | 3621df43b07d9a32e18309de569f43a8b6453966 (patch) | |
| tree | 99778e6018f206fef972634cb26d4e3b3da53616 /drivers/platform/x86/intel/pmc/core.h | |
| parent | 935b8211a31a52c82150b2b83c8428859393860d (diff) | |
| download | linux-3621df43b07d9a32e18309de569f43a8b6453966.tar.xz | |
platform/x86/intel/pmc: Add debug attribute for Die C6 counter
Add a "die_c6_us_show" debugfs attribute. Reads the counter value using
Intel Platform Monitoring Technology (PMT) driver API. This counter is
useful for determining the idle residency of CPUs in the compute tile.
Also adds a missing forward declaration for punit_ep which was declared in
an earlier upstream commit but only used for the first time in this one.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231129222132.2331261-20-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/intel/pmc/core.h')
| -rw-r--r-- | drivers/platform/x86/intel/pmc/core.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index 85b6f6ae4995..6d7673145f90 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -16,6 +16,8 @@ #include <linux/bits.h> #include <linux/platform_device.h> +struct telem_endpoint; + #define SLP_S0_RES_COUNTER_MASK GENMASK(31, 0) #define PMC_BASE_ADDR_DEFAULT 0xFE000000 @@ -357,6 +359,7 @@ struct pmc { * @devs: pointer to an array of pmc pointers * @pdev: pointer to platform_device struct * @ssram_pcidev: pointer to pci device struct for the PMC SSRAM + * @crystal_freq: crystal frequency from cpuid * @dbgfs_dir: path to debugfs interface * @pmc_xram_read_bit: flag to indicate whether PMC XRAM shadow registers * used to read MPHY PG and PLL status are available @@ -374,6 +377,7 @@ struct pmc_dev { struct dentry *dbgfs_dir; struct platform_device *pdev; struct pci_dev *ssram_pcidev; + unsigned int crystal_freq; int pmc_xram_read_bit; struct mutex lock; /* generic mutex lock for PMC Core */ |