diff --git a/drivers/cxl/core/cdat.c b/drivers/cxl/core/cdat.c index ecbd209ca70a..08fd0baea7a0 100644 --- a/drivers/cxl/core/cdat.c +++ b/drivers/cxl/core/cdat.c @@ -382,6 +382,7 @@ void cxl_endpoint_parse_cdat(struct cxl_port *port) cxl_memdev_set_qos_class(cxlds, dsmas_xa); cxl_qos_class_verify(cxlmd); + cxl_memdev_update_perf(cxlmd); } EXPORT_SYMBOL_NS_GPL(cxl_endpoint_parse_cdat, CXL); diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c index dae8802ecdb0..d4e259f3a7e9 100644 --- a/drivers/cxl/core/memdev.c +++ b/drivers/cxl/core/memdev.c @@ -447,13 +447,41 @@ static struct attribute *cxl_memdev_attributes[] = { NULL, }; +static ssize_t pmem_qos_class_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct cxl_memdev *cxlmd = to_cxl_memdev(dev); + struct cxl_dev_state *cxlds = cxlmd->cxlds; + struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds); + + return sysfs_emit(buf, "%d\n", mds->pmem_perf.qos_class); +} + +static struct device_attribute dev_attr_pmem_qos_class = + __ATTR(qos_class, 0444, pmem_qos_class_show, NULL); + static struct attribute *cxl_memdev_pmem_attributes[] = { &dev_attr_pmem_size.attr, + &dev_attr_pmem_qos_class.attr, NULL, }; +static ssize_t ram_qos_class_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct cxl_memdev *cxlmd = to_cxl_memdev(dev); + struct cxl_dev_state *cxlds = cxlmd->cxlds; + struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds); + + return sysfs_emit(buf, "%d\n", mds->ram_perf.qos_class); +} + +static struct device_attribute dev_attr_ram_qos_class = + __ATTR(qos_class, 0444, ram_qos_class_show, NULL); + static struct attribute *cxl_memdev_ram_attributes[] = { &dev_attr_ram_size.attr, + &dev_attr_ram_qos_class.attr, NULL, }; @@ -477,14 +505,42 @@ static struct attribute_group cxl_memdev_attribute_group = { .is_visible = cxl_memdev_visible, }; +static umode_t cxl_ram_visible(struct kobject *kobj, struct attribute *a, int n) +{ + struct device *dev = kobj_to_dev(kobj); + struct cxl_memdev *cxlmd = to_cxl_memdev(dev); + struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds); + + if (a == &dev_attr_ram_qos_class.attr) + if (mds->ram_perf.qos_class == CXL_QOS_CLASS_INVALID) + return 0; + + return a->mode; +} + static struct attribute_group cxl_memdev_ram_attribute_group = { .name = "ram", .attrs = cxl_memdev_ram_attributes, + .is_visible = cxl_ram_visible, }; +static umode_t cxl_pmem_visible(struct kobject *kobj, struct attribute *a, int n) +{ + struct device *dev = kobj_to_dev(kobj); + struct cxl_memdev *cxlmd = to_cxl_memdev(dev); + struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds); + + if (a == &dev_attr_pmem_qos_class.attr) + if (mds->pmem_perf.qos_class == CXL_QOS_CLASS_INVALID) + return 0; + + return a->mode; +} + static struct attribute_group cxl_memdev_pmem_attribute_group = { .name = "pmem", .attrs = cxl_memdev_pmem_attributes, + .is_visible = cxl_pmem_visible, }; static umode_t cxl_memdev_security_visible(struct kobject *kobj, @@ -519,6 +575,13 @@ static const struct attribute_group *cxl_memdev_attribute_groups[] = { NULL, }; +void cxl_memdev_update_perf(struct cxl_memdev *cxlmd) +{ + sysfs_update_group(&cxlmd->dev.kobj, &cxl_memdev_ram_attribute_group); + sysfs_update_group(&cxlmd->dev.kobj, &cxl_memdev_pmem_attribute_group); +} +EXPORT_SYMBOL_NS_GPL(cxl_memdev_update_perf, CXL); + static const struct device_type cxl_memdev_type = { .name = "cxl_memdev", .release = cxl_memdev_release, diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index b6017c0c57b4..003feebab79b 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -880,6 +880,8 @@ void cxl_switch_parse_cdat(struct cxl_port *port); int cxl_endpoint_get_perf_coordinates(struct cxl_port *port, struct access_coordinate *coord); +void cxl_memdev_update_perf(struct cxl_memdev *cxlmd); + /* * Unit test builds overrides this to __weak, find the 'strong' version * of these symbols in tools/testing/cxl/. diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c index 547f5a145fc5..0c79d9ce877c 100644 --- a/drivers/cxl/mem.c +++ b/drivers/cxl/mem.c @@ -215,32 +215,6 @@ static ssize_t trigger_poison_list_store(struct device *dev, } static DEVICE_ATTR_WO(trigger_poison_list); -static ssize_t ram_qos_class_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct cxl_memdev *cxlmd = to_cxl_memdev(dev); - struct cxl_dev_state *cxlds = cxlmd->cxlds; - struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds); - - return sysfs_emit(buf, "%d\n", mds->ram_perf.qos_class); -} - -static struct device_attribute dev_attr_ram_qos_class = - __ATTR(qos_class, 0444, ram_qos_class_show, NULL); - -static ssize_t pmem_qos_class_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct cxl_memdev *cxlmd = to_cxl_memdev(dev); - struct cxl_dev_state *cxlds = cxlmd->cxlds; - struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds); - - return sysfs_emit(buf, "%d\n", mds->pmem_perf.qos_class); -} - -static struct device_attribute dev_attr_pmem_qos_class = - __ATTR(qos_class, 0444, pmem_qos_class_show, NULL); - static umode_t cxl_mem_visible(struct kobject *kobj, struct attribute *a, int n) { struct device *dev = kobj_to_dev(kobj); @@ -252,21 +226,11 @@ static umode_t cxl_mem_visible(struct kobject *kobj, struct attribute *a, int n) mds->poison.enabled_cmds)) return 0; - if (a == &dev_attr_pmem_qos_class.attr) - if (mds->pmem_perf.qos_class == CXL_QOS_CLASS_INVALID) - return 0; - - if (a == &dev_attr_ram_qos_class.attr) - if (mds->ram_perf.qos_class == CXL_QOS_CLASS_INVALID) - return 0; - return a->mode; } static struct attribute *cxl_mem_attrs[] = { &dev_attr_trigger_poison_list.attr, - &dev_attr_ram_qos_class.attr, - &dev_attr_pmem_qos_class.attr, NULL };