diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/amd-pmc.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c index e14552f9201e..73275e6b21e0 100644 --- a/drivers/platform/x86/amd-pmc.c +++ b/drivers/platform/x86/amd-pmc.c @@ -387,6 +387,17 @@ static int s0ix_stats_show(struct seq_file *s, void *unused) struct amd_pmc_dev *dev = s->private; u64 entry_time, exit_time, residency; + /* Use FCH registers to get the S0ix stats */ + if (!dev->fch_virt_addr) { + u32 base_addr_lo = FCH_BASE_PHY_ADDR_LOW; + u32 base_addr_hi = FCH_BASE_PHY_ADDR_HIGH; + u64 fch_phys_addr = ((u64)base_addr_hi << 32 | base_addr_lo); + + dev->fch_virt_addr = devm_ioremap(dev->dev, fch_phys_addr, FCH_SSC_MAPPING_SIZE); + if (!dev->fch_virt_addr) + return -ENOMEM; + } + entry_time = ioread32(dev->fch_virt_addr + FCH_S0I3_ENTRY_TIME_H_OFFSET); entry_time = entry_time << 32 | ioread32(dev->fch_virt_addr + FCH_S0I3_ENTRY_TIME_L_OFFSET); @@ -804,7 +815,7 @@ static int amd_pmc_probe(struct platform_device *pdev) struct amd_pmc_dev *dev = &pmc; struct pci_dev *rdev; u32 base_addr_lo, base_addr_hi; - u64 base_addr, fch_phys_addr; + u64 base_addr; int err; u32 val; @@ -858,16 +869,6 @@ static int amd_pmc_probe(struct platform_device *pdev) mutex_init(&dev->lock); - /* Use FCH registers to get the S0ix stats */ - base_addr_lo = FCH_BASE_PHY_ADDR_LOW; - base_addr_hi = FCH_BASE_PHY_ADDR_HIGH; - fch_phys_addr = ((u64)base_addr_hi << 32 | base_addr_lo); - dev->fch_virt_addr = devm_ioremap(dev->dev, fch_phys_addr, FCH_SSC_MAPPING_SIZE); - if (!dev->fch_virt_addr) { - err = -ENOMEM; - goto err_pci_dev_put; - } - if (enable_stb && dev->cpu_id == AMD_CPU_ID_YC) { err = amd_pmc_s2d_init(dev); if (err) |