diff options
Diffstat (limited to 'drivers/platform/x86/intel/pmt/class.c')
| -rw-r--r-- | drivers/platform/x86/intel/pmt/class.c | 44 |
1 files changed, 30 insertions, 14 deletions
diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c index 4b53940a64e2..7233b654bbad 100644 --- a/drivers/platform/x86/intel/pmt/class.c +++ b/drivers/platform/x86/intel/pmt/class.c @@ -9,12 +9,12 @@ */ #include <linux/kernel.h> +#include <linux/intel_vsec.h> #include <linux/io-64-nonatomic-lo-hi.h> #include <linux/module.h> #include <linux/mm.h> #include <linux/pci.h> -#include "../vsec.h" #include "class.h" #define PMT_XA_START 1 @@ -33,7 +33,7 @@ bool intel_pmt_is_early_client_hw(struct device *dev) */ return !!(ivdev->quirks & VSEC_QUIRK_EARLY_HW); } -EXPORT_SYMBOL_NS_GPL(intel_pmt_is_early_client_hw, INTEL_PMT); +EXPORT_SYMBOL_NS_GPL(intel_pmt_is_early_client_hw, "INTEL_PMT"); static inline int pmt_memcpy64_fromio(void *to, const u64 __iomem *from, size_t count) @@ -58,12 +58,30 @@ pmt_memcpy64_fromio(void *to, const u64 __iomem *from, size_t count) return count; } +int pmt_telem_read_mmio(struct pci_dev *pdev, struct pmt_callbacks *cb, u32 guid, void *buf, + void __iomem *addr, loff_t off, u32 count) +{ + if (cb && cb->read_telem) + return cb->read_telem(pdev, guid, buf, off, count); + + addr += off; + + if (guid == GUID_SPR_PUNIT) + /* PUNIT on SPR only supports aligned 64-bit read */ + return pmt_memcpy64_fromio(buf, addr, count); + + memcpy_fromio(buf, addr, count); + + return count; +} +EXPORT_SYMBOL_NS_GPL(pmt_telem_read_mmio, "INTEL_PMT"); + /* * sysfs */ static ssize_t intel_pmt_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, char *buf, loff_t off, + const struct bin_attribute *attr, char *buf, loff_t off, size_t count) { struct intel_pmt_entry *entry = container_of(attr, @@ -79,18 +97,15 @@ intel_pmt_read(struct file *filp, struct kobject *kobj, if (count > entry->size - off) count = entry->size - off; - if (entry->guid == GUID_SPR_PUNIT) - /* PUNIT on SPR only supports aligned 64-bit read */ - count = pmt_memcpy64_fromio(buf, entry->base + off, count); - else - memcpy_fromio(buf, entry->base + off, count); + count = pmt_telem_read_mmio(entry->ep->pcidev, entry->cb, entry->header.guid, buf, + entry->base, off, count); return count; } static int intel_pmt_mmap(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, struct vm_area_struct *vma) + const struct bin_attribute *attr, struct vm_area_struct *vma) { struct intel_pmt_entry *entry = container_of(attr, struct intel_pmt_entry, @@ -194,7 +209,7 @@ static int intel_pmt_populate_entry(struct intel_pmt_entry *entry, /* * Some hardware use a different calculation for the base address * when access_type == ACCESS_LOCAL. On the these systems - * ACCCESS_LOCAL refers to an address in the same BAR as the + * ACCESS_LOCAL refers to an address in the same BAR as the * header but at a fixed offset. But as the header address was * supplied to the driver, we don't know which BAR it was in. * So search for the bar whose range includes the header address. @@ -239,6 +254,7 @@ static int intel_pmt_populate_entry(struct intel_pmt_entry *entry, entry->guid = header->guid; entry->size = header->size; + entry->cb = ivdev->priv_data; return 0; } @@ -292,7 +308,7 @@ static int intel_pmt_dev_register(struct intel_pmt_entry *entry, entry->pmt_bin_attr.attr.name = ns->name; entry->pmt_bin_attr.attr.mode = 0440; entry->pmt_bin_attr.mmap = intel_pmt_mmap; - entry->pmt_bin_attr.read = intel_pmt_read; + entry->pmt_bin_attr.read_new = intel_pmt_read; entry->pmt_bin_attr.size = entry->size; ret = sysfs_create_bin_file(&dev->kobj, &entry->pmt_bin_attr); @@ -300,7 +316,7 @@ static int intel_pmt_dev_register(struct intel_pmt_entry *entry, goto fail_ioremap; if (ns->pmt_add_endpoint) { - ret = ns->pmt_add_endpoint(entry, ivdev->pcidev); + ret = ns->pmt_add_endpoint(ivdev, entry); if (ret) goto fail_add_endpoint; } @@ -343,7 +359,7 @@ int intel_pmt_dev_create(struct intel_pmt_entry *entry, struct intel_pmt_namespa return intel_pmt_dev_register(entry, ns, dev); } -EXPORT_SYMBOL_NS_GPL(intel_pmt_dev_create, INTEL_PMT); +EXPORT_SYMBOL_NS_GPL(intel_pmt_dev_create, "INTEL_PMT"); void intel_pmt_dev_destroy(struct intel_pmt_entry *entry, struct intel_pmt_namespace *ns) @@ -359,7 +375,7 @@ void intel_pmt_dev_destroy(struct intel_pmt_entry *entry, device_unregister(dev); xa_erase(ns->xa, entry->devid); } -EXPORT_SYMBOL_NS_GPL(intel_pmt_dev_destroy, INTEL_PMT); +EXPORT_SYMBOL_NS_GPL(intel_pmt_dev_destroy, "INTEL_PMT"); static int __init pmt_class_init(void) { |