diff options
Diffstat (limited to 'drivers/platform/x86/intel_pmc_core.c')
| -rw-r--r-- | drivers/platform/x86/intel_pmc_core.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c index f85c112f8c2c..08aac03010c9 100644 --- a/drivers/platform/x86/intel_pmc_core.c +++ b/drivers/platform/x86/intel_pmc_core.c @@ -422,6 +422,8 @@ static const struct pmc_reg_map tgl_reg_map = { .pm_cfg_offset = CNP_PMC_PM_CFG_OFFSET, .pm_read_disable_bit = CNP_PMC_READ_DISABLE_BIT, .ltr_ignore_max = TGL_NUM_IP_IGN_ALLOWED, + .lpm_en_offset = TGL_LPM_EN_OFFSET, + .lpm_residency_offset = TGL_LPM_RESIDENCY_OFFSET, }; static inline u32 pmc_core_reg_read(struct pmc_dev *pmcdev, int reg_offset) @@ -794,6 +796,26 @@ static int pmc_core_ltr_show(struct seq_file *s, void *unused) } DEFINE_SHOW_ATTRIBUTE(pmc_core_ltr); +static int pmc_core_substate_res_show(struct seq_file *s, void *unused) +{ + struct pmc_dev *pmcdev = s->private; + u32 offset = pmcdev->map->lpm_residency_offset; + u32 lpm_en; + int index; + + lpm_en = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_en_offset); + seq_printf(s, "status substate residency\n"); + for (index = 0; lpm_modes[index]; index++) { + seq_printf(s, "%7s %7s %-15u\n", + BIT(index) & lpm_en ? "Enabled" : " ", + lpm_modes[index], pmc_core_reg_read(pmcdev, offset)); + offset += 4; + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_res); + static int pmc_core_pkgc_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; @@ -859,6 +881,12 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev) debugfs_create_bool("slp_s0_dbg_latch", 0644, dir, &slps0_dbg_latch); } + + if (pmcdev->map->lpm_en_offset) { + debugfs_create_file("substate_residencies", 0444, + pmcdev->dbgfs_dir, pmcdev, + &pmc_core_substate_res_fops); + } } #else static inline void pmc_core_dbgfs_register(struct pmc_dev *pmcdev) |