diff options
| author | David E. Box <david.e.box@linux.intel.com> | 2023-06-13 15:53:44 -0700 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-06-20 12:51:08 +0200 |
| commit | 1b8c7b843c0043dd1b81e162e5b5fbed4b256896 (patch) | |
| tree | 804f7c29d64f920f9f9411b395f36549b8b3bc36 /drivers/platform/x86/intel/pmc/core.h | |
| parent | 2bcef4529222424559ac9b45948ee9d82c09d9b5 (diff) | |
platform/x86:intel/pmc: Discover PMC devices
On platforms with multiple PMCs, additional PMC devices are discovered
in the SSRAM device associated with the primary PMC. Add support for
discovering PMC devices from SSRAM. Use PMC devid to assign the
corresponding register map.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230613225347.2720665-6-rajvi.jingar@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 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index 4f21d452a033..06c444917a16 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -320,6 +320,17 @@ struct pmc_reg_map { }; /** + * struct pmc_info - Structure to keep pmc info + * @devid: device id of the pmc device + * @map: pointer to a pmc_reg_map struct that contains platform + * specific attributes + */ +struct pmc_info { + u16 devid; + const struct pmc_reg_map *map; +}; + +/** * struct pmc - pmc private info structure * @base_addr: contains pmc base address * @regbase: pointer to io-remapped memory location @@ -340,6 +351,7 @@ struct pmc { * struct pmc_dev - pmc device structure * @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 * @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 @@ -356,6 +368,7 @@ struct pmc_dev { struct pmc *pmcs[MAX_NUM_PMC]; struct dentry *dbgfs_dir; struct platform_device *pdev; + struct pci_dev *ssram_pcidev; int pmc_xram_read_bit; struct mutex lock; /* generic mutex lock for PMC Core */ @@ -368,6 +381,7 @@ struct pmc_dev { bool has_die_c6; u32 die_c6_offset; struct telem_endpoint *punit_ep; + struct pmc_info *regmap_list; }; enum pmc_index { @@ -450,6 +464,8 @@ extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value); int pmc_core_resume_common(struct pmc_dev *pmcdev); int get_primary_reg_base(struct pmc *pmc); +extern void pmc_core_ssram_init(struct pmc_dev *pmcdev); + int spt_core_init(struct pmc_dev *pmcdev); int cnp_core_init(struct pmc_dev *pmcdev); int icl_core_init(struct pmc_dev *pmcdev); |