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authorRajneesh Bhardwaj2018-11-09 00:32:43 +0530
committerAndy Shevchenko2018-11-10 16:28:10 +0200
commit2d649d972bae50199a498f46b945ef8fd78cad5a (patch)
tree4db3a70ce0102aeb0762476bbafcc5fae4c01a95 /drivers/platform
parent2eb150558bb79ee01c39b64c2868216c0be2904f (diff)
platform/x86: intel_pmc_core: Fix LTR IGNORE Max offset
Cannonlake PCH allows us to ignore LTR from more IPs than Sunrisepoint PCH so make the LTR ignore platform specific. Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/intel_pmc_core.c4
-rw-r--r--drivers/platform/x86/intel_pmc_core.h4
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
index 54080c0e52fb..0c18f328cd0d 100644
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -137,6 +137,7 @@ static const struct pmc_reg_map spt_reg_map = {
.ppfear_buckets = SPT_PPFEAR_NUM_ENTRIES,
.pm_cfg_offset = SPT_PMC_PM_CFG_OFFSET,
.pm_read_disable_bit = SPT_PMC_READ_DISABLE_BIT,
+ .ltr_ignore_max = SPT_NUM_IP_IGN_ALLOWED,
};
/* Cannonlake: PGD PFET Enable Ack Status Register(s) bitmap */
@@ -307,6 +308,7 @@ static const struct pmc_reg_map cnp_reg_map = {
.ppfear_buckets = CNP_PPFEAR_NUM_ENTRIES,
.pm_cfg_offset = CNP_PMC_PM_CFG_OFFSET,
.pm_read_disable_bit = CNP_PMC_READ_DISABLE_BIT,
+ .ltr_ignore_max = CNP_NUM_IP_IGN_ALLOWED,
};
static inline u8 pmc_core_reg_read_byte(struct pmc_dev *pmcdev, int offset)
@@ -553,7 +555,7 @@ static ssize_t pmc_core_ltr_ignore_write(struct file *file, const char __user
goto out_unlock;
}
- if (val > NUM_IP_IGN_ALLOWED) {
+ if (val > map->ltr_ignore_max) {
err = -EINVAL;
goto out_unlock;
}
diff --git a/drivers/platform/x86/intel_pmc_core.h b/drivers/platform/x86/intel_pmc_core.h
index fcb13ca1f2bd..e57b26cdb442 100644
--- a/drivers/platform/x86/intel_pmc_core.h
+++ b/drivers/platform/x86/intel_pmc_core.h
@@ -35,7 +35,7 @@
#define SPT_PMC_READ_DISABLE_BIT 0x16
#define SPT_PMC_MSG_FULL_STS_BIT 0x18
#define NUM_RETRIES 100
-#define NUM_IP_IGN_ALLOWED 17
+#define SPT_NUM_IP_IGN_ALLOWED 17
#define SPT_PMC_LTR_CUR_PLT 0x350
#define SPT_PMC_LTR_CUR_ASLT 0x354
@@ -146,6 +146,7 @@ enum ppfear_regs {
#define CNP_PMC_MMIO_REG_LEN 0x2000
#define CNP_PPFEAR_NUM_ENTRIES 8
#define CNP_PMC_READ_DISABLE_BIT 22
+#define CNP_NUM_IP_IGN_ALLOWED 19
#define CNP_PMC_LTR_CUR_PLT 0x1B50
#define CNP_PMC_LTR_CUR_ASLT 0x1B54
#define CNP_PMC_LTR_SPA 0x1B60
@@ -208,6 +209,7 @@ struct pmc_reg_map {
const u32 pm_cfg_offset;
const int pm_read_disable_bit;
const u32 slps0_dbg_offset;
+ const u32 ltr_ignore_max;
};
/**