diff options
author | Xi Pardee <xi.pardee@intel.com> | 2023-06-14 01:53:42 +0300 |
---|---|---|
committer | Hans de Goede <hdegoede@redhat.com> | 2023-06-20 13:51:08 +0300 |
commit | 1c709ae12dad6f7e2dd5becfbac0f5141c2e15fd (patch) | |
tree | bcd3a866490c07c80f16a7bf084e00970f1fea0c /drivers/platform/x86/intel/pmc | |
parent | 804951203aa541ad6720c9726c173d18aeb3ab6b (diff) | |
download | linux-1c709ae12dad6f7e2dd5becfbac0f5141c2e15fd.tar.xz |
platform/x86:intel/pmc: Add support to handle multiple PMCs
To support platforms with multiple PMCs, add a PMC device structure to
support each PMC instance.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230613225347.2720665-4-rajvi.jingar@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/intel/pmc')
-rw-r--r-- | drivers/platform/x86/intel/pmc/adl.c | 5 | ||||
-rw-r--r-- | drivers/platform/x86/intel/pmc/cnp.c | 5 | ||||
-rw-r--r-- | drivers/platform/x86/intel/pmc/core.c | 272 | ||||
-rw-r--r-- | drivers/platform/x86/intel/pmc/core.h | 37 | ||||
-rw-r--r-- | drivers/platform/x86/intel/pmc/icl.c | 6 | ||||
-rw-r--r-- | drivers/platform/x86/intel/pmc/mtl.c | 5 | ||||
-rw-r--r-- | drivers/platform/x86/intel/pmc/spt.c | 6 | ||||
-rw-r--r-- | drivers/platform/x86/intel/pmc/tgl.c | 10 |
8 files changed, 205 insertions, 141 deletions
diff --git a/drivers/platform/x86/intel/pmc/adl.c b/drivers/platform/x86/intel/pmc/adl.c index f678ce308cc7..5006008e01be 100644 --- a/drivers/platform/x86/intel/pmc/adl.c +++ b/drivers/platform/x86/intel/pmc/adl.c @@ -311,10 +311,11 @@ const struct pmc_reg_map adl_reg_map = { int adl_core_init(struct pmc_dev *pmcdev) { + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; int ret; - pmcdev->map = &adl_reg_map; - ret = get_primary_reg_base(pmcdev); + pmc->map = &adl_reg_map; + ret = get_primary_reg_base(pmc); if (ret) return ret; diff --git a/drivers/platform/x86/intel/pmc/cnp.c b/drivers/platform/x86/intel/pmc/cnp.c index 5fb2d191ce30..420aaa1d7c76 100644 --- a/drivers/platform/x86/intel/pmc/cnp.c +++ b/drivers/platform/x86/intel/pmc/cnp.c @@ -206,10 +206,11 @@ const struct pmc_reg_map cnp_reg_map = { int cnp_core_init(struct pmc_dev *pmcdev) { + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; int ret; - pmcdev->map = &cnp_reg_map; - ret = get_primary_reg_base(pmcdev); + pmc->map = &cnp_reg_map; + ret = get_primary_reg_base(pmc); if (ret) return ret; diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index 0d4cda7c1833..8d774461dd29 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -53,18 +53,18 @@ const struct pmc_bit_map msr_map[] = { {} }; -static inline u32 pmc_core_reg_read(struct pmc_dev *pmcdev, int reg_offset) +static inline u32 pmc_core_reg_read(struct pmc *pmc, int reg_offset) { - return readl(pmcdev->regbase + reg_offset); + return readl(pmc->regbase + reg_offset); } -static inline void pmc_core_reg_write(struct pmc_dev *pmcdev, int reg_offset, +static inline void pmc_core_reg_write(struct pmc *pmc, int reg_offset, u32 val) { - writel(val, pmcdev->regbase + reg_offset); + writel(val, pmc->regbase + reg_offset); } -static inline u64 pmc_core_adjust_slp_s0_step(struct pmc_dev *pmcdev, u32 value) +static inline u64 pmc_core_adjust_slp_s0_step(struct pmc *pmc, u32 value) { /* * ADL PCH does not have the SLP_S0 counter and LPM Residency counters are @@ -72,17 +72,18 @@ static inline u64 pmc_core_adjust_slp_s0_step(struct pmc_dev *pmcdev, u32 value) * programs have the legacy SLP_S0 residency counter that is using the 122 * usec tick. */ - const int lpm_adj_x2 = pmcdev->map->lpm_res_counter_step_x2; + const int lpm_adj_x2 = pmc->map->lpm_res_counter_step_x2; - if (pmcdev->map == &adl_reg_map) + if (pmc->map == &adl_reg_map) return (u64)value * GET_X2_COUNTER((u64)lpm_adj_x2); else - return (u64)value * pmcdev->map->slp_s0_res_counter_step; + return (u64)value * pmc->map->slp_s0_res_counter_step; } static int set_etr3(struct pmc_dev *pmcdev) { - const struct pmc_reg_map *map = pmcdev->map; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_reg_map *map = pmc->map; u32 reg; int err; @@ -92,7 +93,7 @@ static int set_etr3(struct pmc_dev *pmcdev) mutex_lock(&pmcdev->lock); /* check if CF9 is locked */ - reg = pmc_core_reg_read(pmcdev, map->etr3_offset); + reg = pmc_core_reg_read(pmc, map->etr3_offset); if (reg & ETR3_CF9LOCK) { err = -EACCES; goto out_unlock; @@ -100,9 +101,9 @@ static int set_etr3(struct pmc_dev *pmcdev) /* write CF9 global reset bit */ reg |= ETR3_CF9GR; - pmc_core_reg_write(pmcdev, map->etr3_offset, reg); + pmc_core_reg_write(pmc, map->etr3_offset, reg); - reg = pmc_core_reg_read(pmcdev, map->etr3_offset); + reg = pmc_core_reg_read(pmc, map->etr3_offset); if (!(reg & ETR3_CF9GR)) { err = -EIO; goto out_unlock; @@ -120,11 +121,12 @@ static umode_t etr3_is_visible(struct kobject *kobj, { struct device *dev = kobj_to_dev(kobj); struct pmc_dev *pmcdev = dev_get_drvdata(dev); - const struct pmc_reg_map *map = pmcdev->map; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_reg_map *map = pmc->map; u32 reg; mutex_lock(&pmcdev->lock); - reg = pmc_core_reg_read(pmcdev, map->etr3_offset); + reg = pmc_core_reg_read(pmc, map->etr3_offset); mutex_unlock(&pmcdev->lock); return reg & ETR3_CF9LOCK ? attr->mode & (SYSFS_PREALLOC | 0444) : attr->mode; @@ -134,7 +136,8 @@ static ssize_t etr3_show(struct device *dev, struct device_attribute *attr, char *buf) { struct pmc_dev *pmcdev = dev_get_drvdata(dev); - const struct pmc_reg_map *map = pmcdev->map; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_reg_map *map = pmc->map; u32 reg; if (!map->etr3_offset) @@ -142,7 +145,7 @@ static ssize_t etr3_show(struct device *dev, mutex_lock(&pmcdev->lock); - reg = pmc_core_reg_read(pmcdev, map->etr3_offset); + reg = pmc_core_reg_read(pmc, map->etr3_offset); reg &= ETR3_CF9GR | ETR3_CF9LOCK; mutex_unlock(&pmcdev->lock); @@ -191,37 +194,37 @@ static const struct attribute_group *pmc_dev_groups[] = { static int pmc_core_dev_state_get(void *data, u64 *val) { - struct pmc_dev *pmcdev = data; - const struct pmc_reg_map *map = pmcdev->map; + struct pmc *pmc = data; + const struct pmc_reg_map *map = pmc->map; u32 value; - value = pmc_core_reg_read(pmcdev, map->slp_s0_offset); - *val = pmc_core_adjust_slp_s0_step(pmcdev, value); + value = pmc_core_reg_read(pmc, map->slp_s0_offset); + *val = pmc_core_adjust_slp_s0_step(pmc, value); return 0; } DEFINE_DEBUGFS_ATTRIBUTE(pmc_core_dev_state, pmc_core_dev_state_get, NULL, "%llu\n"); -static int pmc_core_check_read_lock_bit(struct pmc_dev *pmcdev) +static int pmc_core_check_read_lock_bit(struct pmc *pmc) { u32 value; - value = pmc_core_reg_read(pmcdev, pmcdev->map->pm_cfg_offset); - return value & BIT(pmcdev->map->pm_read_disable_bit); + value = pmc_core_reg_read(pmc, pmc->map->pm_cfg_offset); + return value & BIT(pmc->map->pm_read_disable_bit); } -static void pmc_core_slps0_display(struct pmc_dev *pmcdev, struct device *dev, +static void pmc_core_slps0_display(struct pmc *pmc, struct device *dev, struct seq_file *s) { - const struct pmc_bit_map **maps = pmcdev->map->slps0_dbg_maps; + const struct pmc_bit_map **maps = pmc->map->slps0_dbg_maps; const struct pmc_bit_map *map; - int offset = pmcdev->map->slps0_dbg_offset; + int offset = pmc->map->slps0_dbg_offset; u32 data; while (*maps) { map = *maps; - data = pmc_core_reg_read(pmcdev, offset); + data = pmc_core_reg_read(pmc, offset); offset += 4; while (map->name) { if (dev) @@ -248,7 +251,7 @@ static int pmc_core_lpm_get_arr_size(const struct pmc_bit_map **maps) return idx; } -static void pmc_core_lpm_display(struct pmc_dev *pmcdev, struct device *dev, +static void pmc_core_lpm_display(struct pmc *pmc, struct device *dev, struct seq_file *s, u32 offset, const char *str, const struct pmc_bit_map **maps) @@ -262,7 +265,7 @@ static void pmc_core_lpm_display(struct pmc_dev *pmcdev, struct device *dev, return; for (index = 0; index < arr_size; index++) { - lpm_regs[index] = pmc_core_reg_read(pmcdev, offset); + lpm_regs[index] = pmc_core_reg_read(pmc, offset); offset += 4; } @@ -291,9 +294,9 @@ static void pmc_core_lpm_display(struct pmc_dev *pmcdev, struct device *dev, static bool slps0_dbg_latch; -static inline u8 pmc_core_reg_read_byte(struct pmc_dev *pmcdev, int offset) +static inline u8 pmc_core_reg_read_byte(struct pmc *pmc, int offset) { - return readb(pmcdev->regbase + offset); + return readb(pmc->regbase + offset); } static void pmc_core_display_map(struct seq_file *s, int index, int idx, int ip, @@ -307,19 +310,20 @@ static void pmc_core_display_map(struct seq_file *s, int index, int idx, int ip, static int pmc_core_ppfear_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map **maps = pmcdev->map->pfear_sts; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_bit_map **maps = pmc->map->pfear_sts; u8 pf_regs[PPFEAR_MAX_NUM_ENTRIES]; int index, iter, idx, ip = 0; - iter = pmcdev->map->ppfear0_offset; + iter = pmc->map->ppfear0_offset; - for (index = 0; index < pmcdev->map->ppfear_buckets && + for (index = 0; index < pmc->map->ppfear_buckets && index < PPFEAR_MAX_NUM_ENTRIES; index++, iter++) - pf_regs[index] = pmc_core_reg_read_byte(pmcdev, iter); + pf_regs[index] = pmc_core_reg_read_byte(pmc, iter); for (idx = 0; maps[idx]; idx++) { for (index = 0; maps[idx][index].name && - index < pmcdev->map->ppfear_buckets * 8; ip++, index++) + index < pmc->map->ppfear_buckets * 8; ip++, index++) pmc_core_display_map(s, index, idx, ip, pf_regs[index / 8], maps); } @@ -329,37 +333,38 @@ static int pmc_core_ppfear_show(struct seq_file *s, void *unused) DEFINE_SHOW_ATTRIBUTE(pmc_core_ppfear); /* This function should return link status, 0 means ready */ -static int pmc_core_mtpmc_link_status(struct pmc_dev *pmcdev) +static int pmc_core_mtpmc_link_status(struct pmc *pmc) { u32 value; - value = pmc_core_reg_read(pmcdev, SPT_PMC_PM_STS_OFFSET); + value = pmc_core_reg_read(pmc, SPT_PMC_PM_STS_OFFSET); return value & BIT(SPT_PMC_MSG_FULL_STS_BIT); } -static int pmc_core_send_msg(struct pmc_dev *pmcdev, u32 *addr_xram) +static int pmc_core_send_msg(struct pmc *pmc, u32 *addr_xram) { u32 dest; int timeout; for (timeout = NUM_RETRIES; timeout > 0; timeout--) { - if (pmc_core_mtpmc_link_status(pmcdev) == 0) + if (pmc_core_mtpmc_link_status(pmc) == 0) break; msleep(5); } - if (timeout <= 0 && pmc_core_mtpmc_link_status(pmcdev)) + if (timeout <= 0 && pmc_core_mtpmc_link_status(pmc)) return -EBUSY; dest = (*addr_xram & MTPMC_MASK) | (1U << 1); - pmc_core_reg_write(pmcdev, SPT_PMC_MTPMC_OFFSET, dest); + pmc_core_reg_write(pmc, SPT_PMC_MTPMC_OFFSET, dest); return 0; } static int pmc_core_mphy_pg_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map *map = pmcdev->map->mphy_sts; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_bit_map *map = pmc->map->mphy_sts; u32 mphy_core_reg_low, mphy_core_reg_high; u32 val_low, val_high; int index, err = 0; @@ -374,21 +379,21 @@ static int pmc_core_mphy_pg_show(struct seq_file *s, void *unused) mutex_lock(&pmcdev->lock); - if (pmc_core_send_msg(pmcdev, &mphy_core_reg_low) != 0) { + if (pmc_core_send_msg(pmc, &mphy_core_reg_low) != 0) { err = -EBUSY; goto out_unlock; } msleep(10); - val_low = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET); + val_low = pmc_core_reg_read(pmc, SPT_PMC_MFPMC_OFFSET); - if (pmc_core_send_msg(pmcdev, &mphy_core_reg_high) != 0) { + if (pmc_core_send_msg(pmc, &mphy_core_reg_high) != 0) { err = -EBUSY; goto out_unlock; } msleep(10); - val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET); + val_high = pmc_core_reg_read(pmc, SPT_PMC_MFPMC_OFFSET); for (index = 0; index < 8 && map[index].name; index++) { seq_printf(s, "%-32s\tState: %s\n", @@ -413,7 +418,8 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_mphy_pg); static int pmc_core_pll_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map *map = pmcdev->map->pll_sts; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_bit_map *map = pmc->map->pll_sts; u32 mphy_common_reg, val; int index, err = 0; @@ -425,14 +431,14 @@ static int pmc_core_pll_show(struct seq_file *s, void *unused) mphy_common_reg = (SPT_PMC_MPHY_COM_STS_0 << 16); mutex_lock(&pmcdev->lock); - if (pmc_core_send_msg(pmcdev, &mphy_common_reg) != 0) { + if (pmc_core_send_msg(pmc, &mphy_common_reg) != 0) { err = -EBUSY; goto out_unlock; } /* Observed PMC HW response latency for MTPMC-MFPMC is ~10 ms */ msleep(10); - val = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET); + val = pmc_core_reg_read(pmc, SPT_PMC_MFPMC_OFFSET); for (index = 0; map[index].name ; index++) { seq_printf(s, "%-32s\tState: %s\n", @@ -448,7 +454,8 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_pll); int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value) { - const struct pmc_reg_map *map = pmcdev->map; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_reg_map *map = pmc->map; u32 reg; int err = 0; @@ -459,9 +466,9 @@ int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value) goto out_unlock; } - reg = pmc_core_reg_read(pmcdev, map->ltr_ignore_offset); + reg = pmc_core_reg_read(pmc, map->ltr_ignore_offset); reg |= BIT(value); - pmc_core_reg_write(pmcdev, map->ltr_ignore_offset, reg); + pmc_core_reg_write(pmc, map->ltr_ignore_offset, reg); out_unlock: mutex_unlock(&pmcdev->lock); @@ -509,7 +516,8 @@ static const struct file_operations pmc_core_ltr_ignore_ops = { static void pmc_core_slps0_dbg_latch(struct pmc_dev *pmcdev, bool reset) { - const struct pmc_reg_map *map = pmcdev->map; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_reg_map *map = pmc->map; u32 fd; mutex_lock(&pmcdev->lock); @@ -517,12 +525,12 @@ static void pmc_core_slps0_dbg_latch(struct pmc_dev *pmcdev, bool reset) if (!reset && !slps0_dbg_latch) goto out_unlock; - fd = pmc_core_reg_read(pmcdev, map->slps0_dbg_offset); + fd = pmc_core_reg_read(pmc, map->slps0_dbg_offset); if (reset) fd &= ~CNP_PMC_LATCH_SLPS0_EVENTS; else fd |= CNP_PMC_LATCH_SLPS0_EVENTS; - pmc_core_reg_write(pmcdev, map->slps0_dbg_offset, fd); + pmc_core_reg_write(pmc, map->slps0_dbg_offset, fd); slps0_dbg_latch = false; @@ -535,7 +543,7 @@ static int pmc_core_slps0_dbg_show(struct seq_file *s, void *unused) struct pmc_dev *pmcdev = s->private; pmc_core_slps0_dbg_latch(pmcdev, false); - pmc_core_slps0_display(pmcdev, NULL, s); + pmc_core_slps0_display(pmcdev->pmcs[PMC_IDX_MAIN], NULL, s); pmc_core_slps0_dbg_latch(pmcdev, true); return 0; @@ -578,8 +586,8 @@ static u32 convert_ltr_scale(u32 val) static int pmc_core_ltr_show(struct seq_file *s, void *unused) { - struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map *map = pmcdev->map->ltr_show_sts; + struct pmc *pmc = s->private; + const struct pmc_bit_map *map = pmc->map->ltr_show_sts; u64 decoded_snoop_ltr, decoded_non_snoop_ltr; u32 ltr_raw_data, scale, val; u16 snoop_ltr, nonsnoop_ltr; @@ -587,7 +595,7 @@ static int pmc_core_ltr_show(struct seq_file *s, void *unused) for (index = 0; map[index].name ; index++) { decoded_snoop_ltr = decoded_non_snoop_ltr = 0; - ltr_raw_data = pmc_core_reg_read(pmcdev, + ltr_raw_data = pmc_core_reg_read(pmc, map[index].bit_mask); snoop_ltr = ltr_raw_data & ~MTPMC_MASK; nonsnoop_ltr = (ltr_raw_data >> 0x10) & ~MTPMC_MASK; @@ -613,10 +621,10 @@ static int pmc_core_ltr_show(struct seq_file *s, void *unused) } DEFINE_SHOW_ATTRIBUTE(pmc_core_ltr); -static inline u64 adjust_lpm_residency(struct pmc_dev *pmcdev, u32 offset, +static inline u64 adjust_lpm_residency(struct pmc *pmc, u32 offset, const int lpm_adj_x2) { - u64 lpm_res = pmc_core_reg_read(pmcdev, offset); + u64 lpm_res = pmc_core_reg_read(pmc, offset); return GET_X2_COUNTER((u64)lpm_adj_x2 * lpm_res); } @@ -624,15 +632,16 @@ static inline u64 adjust_lpm_residency(struct pmc_dev *pmcdev, u32 offset, static int pmc_core_substate_res_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; - const int lpm_adj_x2 = pmcdev->map->lpm_res_counter_step_x2; - u32 offset = pmcdev->map->lpm_residency_offset; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const int lpm_adj_x2 = pmc->map->lpm_res_counter_step_x2; + u32 offset = pmc->map->lpm_residency_offset; int i, mode; seq_printf(s, "%-10s %-15s\n", "Substate", "Residency"); pmc_for_each_mode(i, mode, pmcdev) { seq_printf(s, "%-10s %-15llu\n", pmc_lpm_modes[mode], - adjust_lpm_residency(pmcdev, offset + (4 * mode), lpm_adj_x2)); + adjust_lpm_residency(pmc, offset + (4 * mode), lpm_adj_x2)); } return 0; @@ -642,10 +651,11 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_res); static int pmc_core_substate_sts_regs_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map **maps = pmcdev->map->lpm_sts; - u32 offset = pmcdev->map->lpm_status_offset; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_bit_map **maps = pmc->map->lpm_sts; + u32 offset = pmc->map->lpm_status_offset; - pmc_core_lpm_display(pmcdev, NULL, s, offset, "STATUS", maps); + pmc_core_lpm_display(pmc, NULL, s, offset, "STATUS", maps); return 0; } @@ -654,10 +664,11 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_sts_regs); static int pmc_core_substate_l_sts_regs_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map **maps = pmcdev->map->lpm_sts; - u32 offset = pmcdev->map->lpm_live_status_offset; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_bit_map **maps = pmc->map->lpm_sts; + u32 offset = pmc->map->lpm_live_status_offset; - pmc_core_lpm_display(pmcdev, NULL, s, offset, "LIVE_STATUS", maps); + pmc_core_lpm_display(pmc, NULL, s, offset, "LIVE_STATUS", maps); return 0; } @@ -678,11 +689,12 @@ static void pmc_core_substate_req_header_show(struct seq_file *s) static int pmc_core_substate_req_regs_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map **maps = pmcdev->map->lpm_sts; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_bit_map **maps = pmc->map->lpm_sts; const struct pmc_bit_map *map; - const int num_maps = pmcdev->map->lpm_num_maps; - u32 sts_offset = pmcdev->map->lpm_status_offset; - u32 *lpm_req_regs = pmcdev->lpm_req_regs; + const int num_maps = pmc->map->lpm_num_maps; + u32 sts_offset = pmc->map->lpm_status_offset; + u32 *lpm_req_regs = pmc->lpm_req_regs; int mp; /* Display the header */ @@ -703,7 +715,7 @@ static int pmc_core_substate_req_regs_show(struct seq_file *s, void *unused) req_mask |= lpm_req_regs[mp + (mode * num_maps)]; /* Get the last latched status for this map */ - lpm_status = pmc_core_reg_read(pmcdev, sts_offset + (mp * 4)); + lpm_status = pmc_core_reg_read(pmc, sts_offset + (mp * 4)); /* Loop over elements in this map */ map = maps[mp]; @@ -746,11 +758,12 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_req_regs); static int pmc_core_lpm_latch_mode_show(struct seq_file *s, void *unused) { struct pmc_dev *pmcdev = s->private; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; bool c10; u32 reg; int idx, mode; - reg = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_sts_latch_en_offset); + reg = pmc_core_reg_read(pmc, pmc->map->lpm_sts_latch_en_offset); if (reg & LPM_STS_LATCH_MODE) { seq_puts(s, "c10"); c10 = false; @@ -777,6 +790,7 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file, { struct seq_file *s = file->private_data; struct pmc_dev *pmcdev = s->private; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; bool clear = false, c10 = false; unsigned char buf[8]; int idx, m, mode; @@ -813,9 +827,9 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file, if (clear) { mutex_lock(&pmcdev->lock); - reg = pmc_core_reg_read(pmcdev, pmcdev->map->etr3_offset); + reg = pmc_core_reg_read(pmc, pmc->map->etr3_offset); reg |= ETR3_CLEAR_LPM_EVENTS; - pmc_core_reg_write(pmcdev, pmcdev->map->etr3_offset, reg); + pmc_core_reg_write(pmc, pmc->map->etr3_offset, reg); mutex_unlock(&pmcdev->lock); @@ -825,9 +839,9 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file, if (c10) { mutex_lock(&pmcdev->lock); - reg = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_sts_latch_en_offset); + reg = pmc_core_reg_read(pmc, pmc->map->lpm_sts_latch_en_offset); reg &= ~LPM_STS_LATCH_MODE; - pmc_core_reg_write(pmcdev, pmcdev->map->lpm_sts_latch_en_offset, reg); + pmc_core_reg_write(pmc, pmc->map->lpm_sts_latch_en_offset, reg); mutex_unlock(&pmcdev->lock); @@ -840,7 +854,7 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file, */ reg = LPM_STS_LATCH_MODE | BIT(mode); mutex_lock(&pmcdev->lock); - pmc_core_reg_write(pmcdev, pmcdev->map->lpm_sts_latch_en_offset, reg); + pmc_core_reg_write(pmc, pmc->map->lpm_sts_latch_en_offset, reg); mutex_unlock(&pmcdev->lock); return count; @@ -849,8 +863,8 @@ DEFINE_PMC_CORE_ATTR_WRITE(pmc_core_lpm_latch_mode); static int pmc_core_pkgc_show(struct seq_file *s, void *unused) { - struct pmc_dev *pmcdev = s->private; - const struct pmc_bit_map *map = pmcdev->map->msr_sts; + struct pmc *pmc = s->private; + const struct pmc_bit_map *map = pmc->map->msr_sts; u64 pcstate_count; int index; @@ -901,6 +915,7 @@ static bool pmc_core_pri_verify(u32 lpm_pri, u8 *mode_order) static void pmc_core_get_low_power_modes(struct platform_device *pdev) { struct pmc_dev *pmcdev = platform_get_drvdata(pdev); + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; u8 pri_order[LPM_MAX_NUM_MODES] = LPM_DEFAULT_PRI; u8 mode_order[LPM_MAX_NUM_MODES]; u32 lpm_pri; @@ -908,10 +923,10 @@ static void pmc_core_get_low_power_modes(struct platform_device *pdev) int mode, i, p; /* Use LPM Maps to indicate support for substates */ - if (!pmcdev->map->lpm_num_maps) + if (!pmc->map->lpm_num_maps) return; - lpm_en = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_en_offset); + lpm_en = pmc_core_reg_read(pmc, pmc->map->lpm_en_offset); /* For MTL, BIT 31 is not an lpm mode but a enable bit. * Lower byte is enough to cover the number of lpm modes for all * platforms and hence mask the upper 3 bytes. @@ -919,7 +934,7 @@ static void pmc_core_get_low_power_modes(struct platform_device *pdev) pmcdev->num_lpm_modes = hweight32(lpm_en & 0xFF); /* Read 32 bit LPM_PRI register */ - lpm_pri = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_priority_offset); + lpm_pri = pmc_core_reg_read(pmc, pmc->map->lpm_priority_offset); /* @@ -948,21 +963,21 @@ static void pmc_core_get_low_power_modes(struct platform_device *pdev) } } -int get_primary_reg_base(struct pmc_dev *pmcdev) +int get_primary_reg_base(struct pmc *pmc) { u64 slp_s0_addr; if (lpit_read_residency_count_address(&slp_s0_addr)) { - pmcdev->base_addr = PMC_BASE_ADDR_DEFAULT; + pmc->base_addr = PMC_BASE_ADDR_DEFAULT; - if (page_is_ram(PHYS_PFN(pmcdev->base_addr))) + if (page_is_ram(PHYS_PFN(pmc->base_addr))) return -ENODEV; } else { - pmcdev->base_addr = slp_s0_addr - pmcdev->map->slp_s0_offset; + pmc->base_addr = slp_s0_addr - pmc->map->slp_s0_offset; } - pmcdev->regbase = ioremap(pmcdev->base_addr, pmcdev->map->regmap_length); - if (!pmcdev->regbase) + pmc->regbase = ioremap(pmc->base_addr, pmc->map->regmap_length); + if (!pmc->regbase) return -ENOMEM; return 0; } @@ -974,36 +989,37 @@ static void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev) static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev) { + struct pmc *primary_pmc = pmcdev->pmcs[PMC_IDX_MAIN]; struct dentry *dir; dir = debugfs_create_dir("pmc_core", NULL); pmcdev->dbgfs_dir = dir; - debugfs_create_file("slp_s0_residency_usec", 0444, dir, pmcdev, + debugfs_create_file("slp_s0_residency_usec", 0444, dir, primary_pmc, &pmc_core_dev_state); - if (pmcdev->map->pfear_sts) + if (primary_pmc->map->pfear_sts) debugfs_create_file("pch_ip_power_gating_status", 0444, dir, pmcdev, &pmc_core_ppfear_fops); debugfs_create_file("ltr_ignore", 0644, dir, pmcdev, &pmc_core_ltr_ignore_ops); - debugfs_create_file("ltr_show", 0444, dir, pmcdev, &pmc_core_ltr_fops); + debugfs_create_file("ltr_show", 0444, dir, primary_pmc, &pmc_core_ltr_fops); - debugfs_create_file("package_cstate_show", 0444, dir, pmcdev, + debugfs_create_file("package_cstate_show", 0444, dir, primary_pmc, &pmc_core_pkgc_fops); - if (pmcdev->map->pll_sts) + if (primary_pmc->map->pll_sts) debugfs_create_file("pll_status", 0444, dir, pmcdev, &pmc_core_pll_fops); - if (pmcdev->map->mphy_sts) + if (primary_pmc->map->mphy_sts) debugfs_create_file("mphy_core_lanes_power_gating_status", 0444, dir, pmcdev, &pmc_core_mphy_pg_fops); - if (pmcdev->map->slps0_dbg_maps) { + if (primary_pmc->map->slps0_dbg_maps) { debugfs_create_file("slp_s0_debug_status", 0444, dir, pmcdev, &pmc_core_slps0_dbg_fops); @@ -1012,13 +1028,13 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev) dir, &slps0_dbg_latch); } - if (pmcdev->map->lpm_en_offset) { + if (primary_pmc->map->lpm_en_offset) { debugfs_create_file("substate_residencies", 0444, pmcdev->dbgfs_dir, pmcdev, &pmc_core_substate_res_fops); } - if (pmcdev->map->lpm_status_offset) { + if (primary_pmc->map->lpm_status_offset) { debugfs_create_file("substate_status_registers", 0444, pmcdev->dbgfs_dir, pmcdev, &pmc_core_substate_sts_regs_fops); @@ -1030,7 +1046,7 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev) &pmc_core_lpm_latch_mode_fops); } - if (pmcdev->lpm_req_regs) { + if (primary_pmc->lpm_req_regs) { debugfs_create_file("substate_requirements", 0444, pmcdev->dbgfs_dir, pmcdev, &pmc_core_substate_req_regs_fops); @@ -1081,16 +1097,16 @@ static int quirk_xtal_ignore(const struct dmi_system_id *id) return 0; } -static void pmc_core_xtal_ignore(struct pmc_dev *pmcdev) +static void pmc_core_xtal_ignore(struct pmc *pmc) { u32 value; - value = pmc_core_reg_read(pmcdev, pmcdev->map->pm_vric1_offset); + value = pmc_core_reg_read(pmc, pmc->map->pm_vric1_offset); /* 24MHz Crystal Shutdown Qualification Disable */ value |= SPT_PMC_VRIC1_XTALSDQDIS; /* Low Voltage Mode Enable */ value &= ~SPT_PMC_VRIC1_SLPS0LVEN; - pmc_core_reg_write(pmcdev, pmcdev->map->pm_vric1_offset, value); + pmc_core_reg_write(pmc, pmc->map->pm_vric1_offset, value); } static const struct dmi_system_id pmc_core_dmi_table[] = { @@ -1105,12 +1121,12 @@ static const struct dmi_system_id pmc_core_dmi_table[] = { {} }; -static void pmc_core_do_dmi_quirks(struct pmc_dev *pmcdev) +static void pmc_core_do_dmi_quirks(struct pmc *pmc) { dmi_check_system(pmc_core_dmi_table); if (xtal_ignore) - pmc_core_xtal_ignore(pmcdev); + pmc_core_xtal_ignore(pmc); } static int pmc_core_probe(struct platform_device *pdev) @@ -1119,6 +1135,7 @@ static int pmc_core_probe(struct platform_device *pdev) struct pmc_dev *pmcdev; const struct x86_cpu_id *cpu_id; int (*core_init)(struct pmc_dev *pmcdev); + struct pmc *primary_pmc; int ret; if (device_initialized) @@ -1137,6 +1154,12 @@ static int pmc_core_probe(struct platform_device *pdev) core_init = (int (*)(struct pmc_dev *))cpu_id->driver_data; + /* Primary PMC */ + primary_pmc = devm_kzalloc(&pdev->dev, sizeof(*primary_pmc), GFP_KERNEL); + if (!primary_pmc) + return -ENOMEM; + pmcdev->pmcs[PMC_IDX_MAIN] = primary_pmc; + /* * Coffee Lake has CPU ID of Kaby Lake and Cannon Lake PCH. So here * Sunrisepoint PCH regmap can't be used. Use Cannon Lake PCH regmap @@ -1152,13 +1175,13 @@ static int pmc_core_probe(struct platform_device *pdev) return ret; } - pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit(pmcdev); + pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit(primary_pmc); pmc_core_get_low_power_modes(pdev); - pmc_core_do_dmi_quirks(pmcdev); + pmc_core_do_dmi_quirks(primary_pmc); pmc_core_dbgfs_register(pmcdev); pm_report_max_hw_sleep(FIELD_MAX(SLP_S0_RES_COUNTER_MASK) * - pmc_core_adjust_slp_s0_step(pmcdev, 1)); + pmc_core_adjust_slp_s0_step(primary_pmc, 1)); device_initialized = true; dev_info(&pdev->dev, " initialized\n"); @@ -1169,11 +1192,18 @@ static int pmc_core_probe(struct platform_device *pdev) static void pmc_core_remove(struct platform_device *pdev) { struct pmc_dev *pmcdev = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) { + struct pmc *pmc = pmcdev->pmcs[i]; + + if (pmc) + iounmap(pmc->regbase); + } pmc_core_dbgfs_unregister(pmcdev); platform_set_drvdata(pdev, NULL); mutex_destroy(&pmcdev->lock); - iounmap(pmcdev->regbase); } static bool warn_on_s0ix_failures; @@ -1183,6 +1213,7 @@ MODULE_PARM_DESC(warn_on_s0ix_failures, "Check and warn for S0ix failures"); static __maybe_unused int pmc_core_suspend(struct device *dev) { struct pmc_dev *pmcdev = dev_get_drvdata(dev); + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; /* Check if the syspend will actually use S0ix */ if (pm_suspend_via_firmware()) @@ -1193,7 +1224,7 @@ static __maybe_unused int pmc_core_suspend(struct device *dev) return -EIO; /* Save S0ix residency for checking later */ - if (pmc_core_dev_state_get(pmcdev, &pmcdev->s0ix_counter)) + if (pmc_core_dev_state_get(pmc, &pmcdev->s0ix_counter)) return -EIO; return 0; @@ -1216,7 +1247,7 @@ static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev) { u64 s0ix_counter; - if (pmc_core_dev_state_get(pmcdev, &s0ix_counter)) + if (pmc_core_dev_state_get(pmcdev->pmcs[PMC_IDX_MAIN], &s0ix_counter)) return false; pm_report_hw_sleep_time((u32)(s0ix_counter - pmcdev->s0ix_counter)); @@ -1229,9 +1260,10 @@ static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev) int pmc_core_resume_common(struct pmc_dev *pmcdev) { - const struct pmc_bit_map **maps = pmcdev->map->lpm_sts; - int offset = pmcdev->map->lpm_status_offset; struct device *dev = &pmcdev->pdev->dev; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const struct pmc_bit_map **maps = pmc->map->lpm_sts; + int offset = pmc->map->lpm_status_offset; /* Check if the syspend used S0ix */ if (pm_suspend_via_firmware()) @@ -1253,10 +1285,10 @@ int pmc_core_resume_common(struct pmc_dev *pmcdev) /* The real interesting case - S0ix failed - lets ask PMC why. */ dev_warn(dev, "CPU did not enter SLP_S0!!! (S0ix cnt=%llu)\n", pmcdev->s0ix_counter); - if (pmcdev->map->slps0_dbg_maps) - pmc_core_slps0_display(pmcdev, dev, NULL); - if (pmcdev->map->lpm_sts) - pmc_core_lpm_display(pmcdev, dev, NULL, offset, "STATUS", maps); + if (pmc->map->slps0_dbg_maps) + pmc_core_slps0_display(pmc, dev, NULL); + if (pmc->map->lpm_sts) + pmc_core_lpm_display(pmc, dev, NULL, offset, "STATUS", maps); return 0; } diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h index a672659b8659..4f21d452a033 100644 --- a/drivers/platform/x86/intel/pmc/core.h +++ b/drivers/platform/x86/intel/pmc/core.h @@ -19,6 +19,7 @@ #define SLP_S0_RES_COUNTER_MASK GENMASK(31, 0) #define PMC_BASE_ADDR_DEFAULT 0xFE000000 +#define MAX_NUM_PMC 3 /* Sunrise Point Power Management Controller PCI Device ID */ #define SPT_PMC_PCI_DEVICE_ID 0x9d21 @@ -319,11 +320,25 @@ struct pmc_reg_map { }; /** - * struct pmc_dev - pmc device structure + * struct pmc - pmc private info structure * @base_addr: contains pmc base address * @regbase: pointer to io-remapped memory location * @map: pointer to pmc_reg_map struct that contains platform * specific attributes + * @lpm_req_regs: List of substate requirements + * + * pmc contains info about one power management controller device. + */ +struct pmc { + u64 base_addr; + void __iomem *regbase; + const struct pmc_reg_map *map; + u32 *lpm_req_regs; +}; + +/** + * struct pmc_dev - pmc device structure + * @devs: pointer to an array of pmc pointers * @pdev: pointer to platform_device struct * @dbgfs_dir: path to debugfs interface * @pmc_xram_read_bit: flag to indicate whether PMC XRAM shadow registers @@ -333,15 +348,12 @@ struct pmc_reg_map { * @s0ix_counter: S0ix residency (step adjusted) * @num_lpm_modes: Count of enabled modes * @lpm_en_modes: Array of enabled modes from lowest to highest priority - * @lpm_req_regs: List of substate requirements * @resume: Function to perform platform specific resume * * pmc_dev contains info about power management controller device. */ struct pmc_dev { - u32 base_addr; - void __iomem *regbase; - const struct pmc_reg_map *map; + struct pmc *pmcs[MAX_NUM_PMC]; struct dentry *dbgfs_dir; struct platform_device *pdev; int pmc_xram_read_bit; @@ -351,8 +363,19 @@ struct pmc_dev { u64 s0ix_counter; int num_lpm_modes; int lpm_en_modes[LPM_MAX_NUM_MODES]; - u32 *lpm_req_regs; int (*resume)(struct pmc_dev *pmcdev); + + bool has_die_c6; + u32 die_c6_offset; + struct telem_endpoint *punit_ep; +}; + +enum pmc_index { + PMC_IDX_MAIN, + PMC_IDX_SOC = PMC_IDX_MAIN, + PMC_IDX_IOE, + PMC_IDX_PCH, + PMC_IDX_MAX }; extern const struct pmc_bit_map msr_map[]; @@ -425,7 +448,7 @@ extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev); 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_dev *pmcdev); +int get_primary_reg_base(struct pmc *pmc); int spt_core_init(struct pmc_dev *pmcdev); int cnp_core_init(struct pmc_dev *pmcdev); diff --git a/drivers/platform/x86/intel/pmc/icl.c b/drivers/platform/x86/intel/pmc/icl.c index a671d7e86431..d08e3174230d 100644 --- a/drivers/platform/x86/intel/pmc/icl.c +++ b/drivers/platform/x86/intel/pmc/icl.c @@ -52,6 +52,8 @@ const struct pmc_reg_map icl_reg_map = { int icl_core_init(struct pmc_dev *pmcdev) { - pmcdev->map = &icl_reg_map; - return get_primary_reg_base(pmcdev); + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + + pmc->map = &icl_reg_map; + return get_primary_reg_base(pmc); } diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c index a2fc96f9ef11..69df6d7fee56 100644 --- a/drivers/platform/x86/intel/pmc/mtl.c +++ b/drivers/platform/x86/intel/pmc/mtl.c @@ -508,15 +508,16 @@ static int mtl_resume(struct pmc_dev *pmcdev) int mtl_core_init(struct pmc_dev *pmcdev) { + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_SOC]; int ret; - pmcdev->map = &mtl_socm_reg_map; + pmc->map = &mtl_socm_reg_map; mtl_d3_fixup(); pmcdev->resume = mtl_resume; - ret = get_primary_reg_base(pmcdev); + ret = get_primary_reg_base(pmc); if (ret) return ret; diff --git a/drivers/platform/x86/intel/pmc/spt.c b/drivers/platform/x86/intel/pmc/spt.c index f34015692bb8..4b6f5cbda16c 100644 --- a/drivers/platform/x86/intel/pmc/spt.c +++ b/drivers/platform/x86/intel/pmc/spt.c @@ -136,6 +136,8 @@ const struct pmc_reg_map spt_reg_map = { int spt_core_init(struct pmc_dev *pmcdev) { - pmcdev->map = &spt_reg_map; - return get_primary_reg_base(pmcdev); + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + + pmc->map = &spt_reg_map; + return get_primary_reg_base(pmc); } diff --git a/drivers/platform/x86/intel/pmc/tgl.c b/drivers/platform/x86/intel/pmc/tgl.c index 90807bd947ed..2449940102db 100644 --- a/drivers/platform/x86/intel/pmc/tgl.c +++ b/drivers/platform/x86/intel/pmc/tgl.c @@ -208,7 +208,8 @@ const struct pmc_reg_map tgl_reg_map = { void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev) { struct pmc_dev *pmcdev = platform_get_drvdata(pdev); - const int num_maps = pmcdev->map->lpm_num_maps; + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; + const int num_maps = pmc->map->lpm_num_maps; u32 lpm_size = LPM_MAX_NUM_MODES * num_maps * 4; union acpi_object *out_obj; struct acpi_device *adev; @@ -246,7 +247,7 @@ void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev) goto free_acpi_obj; memcpy(lpm_req_regs, addr, lpm_size); - pmcdev->lpm_req_regs = lpm_req_regs; + pmc->lpm_req_regs = lpm_req_regs; free_acpi_obj: ACPI_FREE(out_obj); @@ -254,10 +255,11 @@ free_acpi_obj: int tgl_core_init(struct pmc_dev *pmcdev) { + struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; int ret; - pmcdev->map = &tgl_reg_map; - ret = get_primary_reg_base(pmcdev); + pmc->map = &tgl_reg_map; + ret = get_primary_reg_base(pmc); if (ret) return ret; |