diff options
Diffstat (limited to 'drivers/firmware/arm_scmi/perf.c')
| -rw-r--r-- | drivers/firmware/arm_scmi/perf.c | 1171 |
1 files changed, 999 insertions, 172 deletions
diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c index 3c8ae7cc35de..683fd9b85c5c 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -2,15 +2,32 @@ /* * System Control and Management Interface (SCMI) Performance Protocol * - * Copyright (C) 2018 ARM Ltd. + * Copyright (C) 2018-2023 ARM Ltd. */ +#define pr_fmt(fmt) "SCMI Notifications PERF - " fmt + +#include <linux/bits.h> +#include <linux/hashtable.h> +#include <linux/io.h> +#include <linux/log2.h> +#include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm_opp.h> +#include <linux/scmi_protocol.h> #include <linux/sort.h> +#include <linux/xarray.h> + +#include <trace/events/scmi.h> + +#include "protocols.h" +#include "notify.h" -#include "common.h" +/* Updated only after ALL the mandatory features for that version are merged */ +#define SCMI_PROTOCOL_SUPPORTED_VERSION 0x40000 + +#define MAX_OPPS 32 enum scmi_performance_protocol_cmd { PERF_DOMAIN_ATTRIBUTES = 0x3, @@ -21,18 +38,30 @@ enum scmi_performance_protocol_cmd { PERF_LEVEL_GET = 0x8, PERF_NOTIFY_LIMITS = 0x9, PERF_NOTIFY_LEVEL = 0xa, + PERF_DESCRIBE_FASTCHANNEL = 0xb, + PERF_DOMAIN_NAME_GET = 0xc, +}; + +enum { + PERF_FC_LEVEL, + PERF_FC_LIMIT, + PERF_FC_MAX, }; struct scmi_opp { u32 perf; u32 power; u32 trans_latency_us; + u32 indicative_freq; + u32 level_index; + struct hlist_node hash; }; struct scmi_msg_resp_perf_attributes { __le16 num_domains; __le16 flags; #define POWER_SCALE_IN_MILLIWATT(x) ((x) & BIT(0)) +#define POWER_SCALE_IN_MICROWATT(x) ((x) & BIT(1)) __le32 stats_addr_low; __le32 stats_addr_high; __le32 stats_size; @@ -44,10 +73,13 @@ struct scmi_msg_resp_perf_domain_attributes { #define SUPPORTS_SET_PERF_LVL(x) ((x) & BIT(30)) #define SUPPORTS_PERF_LIMIT_NOTIFY(x) ((x) & BIT(29)) #define SUPPORTS_PERF_LEVEL_NOTIFY(x) ((x) & BIT(28)) +#define SUPPORTS_PERF_FASTCHANNELS(x) ((x) & BIT(27)) +#define SUPPORTS_EXTENDED_NAMES(x) ((x) & BIT(26)) +#define SUPPORTS_LEVEL_INDEXING(x) ((x) & BIT(25)) __le32 rate_limit_us; __le32 sustained_freq_khz; __le32 sustained_perf_level; - u8 name[SCMI_MAX_STR_SIZE]; + u8 name[SCMI_SHORT_NAME_MAX_SIZE]; }; struct scmi_msg_perf_describe_levels { @@ -76,6 +108,19 @@ struct scmi_perf_notify_level_or_limits { __le32 notify_enable; }; +struct scmi_perf_limits_notify_payld { + __le32 agent_id; + __le32 domain_id; + __le32 range_max; + __le32 range_min; +}; + +struct scmi_perf_level_notify_payld { + __le32 agent_id; + __le32 domain_id; + __le32 performance_level; +}; + struct scmi_msg_resp_perf_describe_levels { __le16 num_returned; __le16 num_remaining; @@ -84,100 +129,212 @@ struct scmi_msg_resp_perf_describe_levels { __le32 power; __le16 transition_latency_us; __le16 reserved; - } opp[0]; + } opp[]; +}; + +struct scmi_msg_resp_perf_describe_levels_v4 { + __le16 num_returned; + __le16 num_remaining; + struct { + __le32 perf_val; + __le32 power; + __le16 transition_latency_us; + __le16 reserved; + __le32 indicative_freq; + __le32 level_index; + } opp[]; }; struct perf_dom_info { + u32 id; bool set_limits; - bool set_perf; bool perf_limit_notify; bool perf_level_notify; + bool perf_fastchannels; + bool level_indexing_mode; u32 opp_count; + u32 rate_limit_us; u32 sustained_freq_khz; u32 sustained_perf_level; - u32 mult_factor; - char name[SCMI_MAX_STR_SIZE]; + unsigned long mult_factor; + struct scmi_perf_domain_info info; struct scmi_opp opp[MAX_OPPS]; + struct scmi_fc_info *fc_info; + struct xarray opps_by_idx; + struct xarray opps_by_lvl; + DECLARE_HASHTABLE(opps_by_freq, ilog2(MAX_OPPS)); }; +#define LOOKUP_BY_FREQ(__htp, __freq) \ +({ \ + /* u32 cast is needed to pick right hash func */ \ + u32 f_ = (u32)(__freq); \ + struct scmi_opp *_opp; \ + \ + hash_for_each_possible((__htp), _opp, hash, f_) \ + if (_opp->indicative_freq == f_) \ + break; \ + _opp; \ +}) + struct scmi_perf_info { - int num_domains; - bool power_scale_mw; + u32 version; + u16 num_domains; + enum scmi_power_scale power_scale; u64 stats_addr; u32 stats_size; + bool notify_lvl_cmd; + bool notify_lim_cmd; struct perf_dom_info *dom_info; }; -static int scmi_perf_attributes_get(const struct scmi_handle *handle, +static enum scmi_performance_protocol_cmd evt_2_cmd[] = { + PERF_NOTIFY_LIMITS, + PERF_NOTIFY_LEVEL, +}; + +static int scmi_perf_attributes_get(const struct scmi_protocol_handle *ph, struct scmi_perf_info *pi) { int ret; struct scmi_xfer *t; struct scmi_msg_resp_perf_attributes *attr; - ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES, - SCMI_PROTOCOL_PERF, 0, sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, 0, + sizeof(*attr), &t); if (ret) return ret; attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { u16 flags = le16_to_cpu(attr->flags); pi->num_domains = le16_to_cpu(attr->num_domains); - pi->power_scale_mw = POWER_SCALE_IN_MILLIWATT(flags); + + if (POWER_SCALE_IN_MILLIWATT(flags)) + pi->power_scale = SCMI_POWER_MILLIWATTS; + if (PROTOCOL_REV_MAJOR(pi->version) >= 0x3) + if (POWER_SCALE_IN_MICROWATT(flags)) + pi->power_scale = SCMI_POWER_MICROWATTS; + pi->stats_addr = le32_to_cpu(attr->stats_addr_low) | (u64)le32_to_cpu(attr->stats_addr_high) << 32; pi->stats_size = le32_to_cpu(attr->stats_size); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); + + if (!ret) { + if (!ph->hops->protocol_msg_check(ph, PERF_NOTIFY_LEVEL, NULL)) + pi->notify_lvl_cmd = true; + + if (!ph->hops->protocol_msg_check(ph, PERF_NOTIFY_LIMITS, NULL)) + pi->notify_lim_cmd = true; + } + return ret; } +static void scmi_perf_xa_destroy(void *data) +{ + int domain; + struct scmi_perf_info *pinfo = data; + + for (domain = 0; domain < pinfo->num_domains; domain++) { + xa_destroy(&((pinfo->dom_info + domain)->opps_by_idx)); + xa_destroy(&((pinfo->dom_info + domain)->opps_by_lvl)); + } +} + static int -scmi_perf_domain_attributes_get(const struct scmi_handle *handle, u32 domain, - struct perf_dom_info *dom_info) +scmi_perf_domain_attributes_get(const struct scmi_protocol_handle *ph, + struct perf_dom_info *dom_info, + bool notify_lim_cmd, bool notify_lvl_cmd, + u32 version) { int ret; + u32 flags; struct scmi_xfer *t; struct scmi_msg_resp_perf_domain_attributes *attr; - ret = scmi_xfer_get_init(handle, PERF_DOMAIN_ATTRIBUTES, - SCMI_PROTOCOL_PERF, sizeof(domain), - sizeof(*attr), &t); + ret = ph->xops->xfer_get_init(ph, PERF_DOMAIN_ATTRIBUTES, + sizeof(dom_info->id), sizeof(*attr), &t); if (ret) return ret; - *(__le32 *)t->tx.buf = cpu_to_le32(domain); + put_unaligned_le32(dom_info->id, t->tx.buf); attr = t->rx.buf; - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { - u32 flags = le32_to_cpu(attr->flags); + flags = le32_to_cpu(attr->flags); dom_info->set_limits = SUPPORTS_SET_LIMITS(flags); - dom_info->set_perf = SUPPORTS_SET_PERF_LVL(flags); - dom_info->perf_limit_notify = SUPPORTS_PERF_LIMIT_NOTIFY(flags); - dom_info->perf_level_notify = SUPPORTS_PERF_LEVEL_NOTIFY(flags); + dom_info->info.set_perf = SUPPORTS_SET_PERF_LVL(flags); + if (notify_lim_cmd) + dom_info->perf_limit_notify = + SUPPORTS_PERF_LIMIT_NOTIFY(flags); + if (notify_lvl_cmd) + dom_info->perf_level_notify = + SUPPORTS_PERF_LEVEL_NOTIFY(flags); + dom_info->perf_fastchannels = SUPPORTS_PERF_FASTCHANNELS(flags); + if (PROTOCOL_REV_MAJOR(version) >= 0x4) + dom_info->level_indexing_mode = + SUPPORTS_LEVEL_INDEXING(flags); + dom_info->rate_limit_us = le32_to_cpu(attr->rate_limit_us) & + GENMASK(19, 0); dom_info->sustained_freq_khz = le32_to_cpu(attr->sustained_freq_khz); dom_info->sustained_perf_level = le32_to_cpu(attr->sustained_perf_level); + /* + * sustained_freq_khz = mult_factor * sustained_perf_level + * mult_factor must be non zero positive integer(not fraction) + */ if (!dom_info->sustained_freq_khz || - !dom_info->sustained_perf_level) + !dom_info->sustained_perf_level || + dom_info->level_indexing_mode) { /* CPUFreq converts to kHz, hence default 1000 */ dom_info->mult_factor = 1000; - else + } else { dom_info->mult_factor = - (dom_info->sustained_freq_khz * 1000) / - dom_info->sustained_perf_level; - strlcpy(dom_info->name, attr->name, SCMI_MAX_STR_SIZE); + (dom_info->sustained_freq_khz * 1000UL) + / dom_info->sustained_perf_level; + if ((dom_info->sustained_freq_khz * 1000UL) % + dom_info->sustained_perf_level) + dev_warn(ph->dev, + "multiplier for domain %d rounded\n", + dom_info->id); + } + if (!dom_info->mult_factor) + dev_warn(ph->dev, + "Wrong sustained perf/frequency(domain %d)\n", + dom_info->id); + + strscpy(dom_info->info.name, attr->name, + SCMI_SHORT_NAME_MAX_SIZE); + } + + ph->xops->xfer_put(ph, t); + + /* + * If supported overwrite short name with the extended one; + * on error just carry on and use already provided short name. + */ + if (!ret && PROTOCOL_REV_MAJOR(version) >= 0x3 && + SUPPORTS_EXTENDED_NAMES(flags)) + ph->hops->extended_name_get(ph, PERF_DOMAIN_NAME_GET, + dom_info->id, NULL, dom_info->info.name, + SCMI_MAX_STR_SIZE); + + xa_init(&dom_info->opps_by_lvl); + if (dom_info->level_indexing_mode) { + xa_init(&dom_info->opps_by_idx); + hash_init(dom_info->opps_by_freq); } - scmi_xfer_put(handle, t); return ret; } @@ -188,76 +345,202 @@ static int opp_cmp_func(const void *opp1, const void *opp2) return t1->perf - t2->perf; } +struct scmi_perf_ipriv { + u32 version; + struct perf_dom_info *perf_dom; +}; + +static void iter_perf_levels_prepare_message(void *message, + unsigned int desc_index, + const void *priv) +{ + struct scmi_msg_perf_describe_levels *msg = message; + const struct scmi_perf_ipriv *p = priv; + + msg->domain = cpu_to_le32(p->perf_dom->id); + /* Set the number of OPPs to be skipped/already read */ + msg->level_index = cpu_to_le32(desc_index); +} + +static int iter_perf_levels_update_state(struct scmi_iterator_state *st, + const void *response, void *priv) +{ + const struct scmi_msg_resp_perf_describe_levels *r = response; + + st->num_returned = le16_to_cpu(r->num_returned); + st->num_remaining = le16_to_cpu(r->num_remaining); + + return 0; +} + +static inline int +process_response_opp(struct device *dev, struct perf_dom_info *dom, + struct scmi_opp *opp, unsigned int loop_idx, + const struct scmi_msg_resp_perf_describe_levels *r) +{ + int ret; + + opp->perf = le32_to_cpu(r->opp[loop_idx].perf_val); + opp->power = le32_to_cpu(r->opp[loop_idx].power); + opp->trans_latency_us = + le16_to_cpu(r->opp[loop_idx].transition_latency_us); + + ret = xa_insert(&dom->opps_by_lvl, opp->perf, opp, GFP_KERNEL); + if (ret) { + dev_info(dev, FW_BUG "Failed to add opps_by_lvl at %d for %s - ret:%d\n", + opp->perf, dom->info.name, ret); + return ret; + } + + return 0; +} + +static inline int +process_response_opp_v4(struct device *dev, struct perf_dom_info *dom, + struct scmi_opp *opp, unsigned int loop_idx, + const struct scmi_msg_resp_perf_describe_levels_v4 *r) +{ + int ret; + + opp->perf = le32_to_cpu(r->opp[loop_idx].perf_val); + opp->power = le32_to_cpu(r->opp[loop_idx].power); + opp->trans_latency_us = + le16_to_cpu(r->opp[loop_idx].transition_latency_us); + + ret = xa_insert(&dom->opps_by_lvl, opp->perf, opp, GFP_KERNEL); + if (ret) { + dev_info(dev, FW_BUG "Failed to add opps_by_lvl at %d for %s - ret:%d\n", + opp->perf, dom->info.name, ret); + return ret; + } + + /* Note that PERF v4 reports always five 32-bit words */ + opp->indicative_freq = le32_to_cpu(r->opp[loop_idx].indicative_freq); + if (dom->level_indexing_mode) { + opp->level_index = le32_to_cpu(r->opp[loop_idx].level_index); + + ret = xa_insert(&dom->opps_by_idx, opp->level_index, opp, + GFP_KERNEL); + if (ret) { + dev_warn(dev, + "Failed to add opps_by_idx at %d for %s - ret:%d\n", + opp->level_index, dom->info.name, ret); + + /* Cleanup by_lvl too */ + xa_erase(&dom->opps_by_lvl, opp->perf); + + return ret; + } + + hash_add(dom->opps_by_freq, &opp->hash, opp->indicative_freq); + } + + return 0; +} + static int -scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain, - struct perf_dom_info *perf_dom) +iter_perf_levels_process_response(const struct scmi_protocol_handle *ph, + const void *response, + struct scmi_iterator_state *st, void *priv) { - int ret, cnt; - u32 tot_opp_cnt = 0; - u16 num_returned, num_remaining; - struct scmi_xfer *t; + int ret; struct scmi_opp *opp; - struct scmi_msg_perf_describe_levels *dom_info; - struct scmi_msg_resp_perf_describe_levels *level_info; + struct scmi_perf_ipriv *p = priv; + + opp = &p->perf_dom->opp[p->perf_dom->opp_count]; + if (PROTOCOL_REV_MAJOR(p->version) <= 0x3) + ret = process_response_opp(ph->dev, p->perf_dom, opp, + st->loop_idx, response); + else + ret = process_response_opp_v4(ph->dev, p->perf_dom, opp, + st->loop_idx, response); - ret = scmi_xfer_get_init(handle, PERF_DESCRIBE_LEVELS, - SCMI_PROTOCOL_PERF, sizeof(*dom_info), 0, &t); + /* Skip BAD duplicates received from firmware */ + if (ret) + return ret == -EBUSY ? 0 : ret; + + p->perf_dom->opp_count++; + + dev_dbg(ph->dev, "Level %d Power %d Latency %dus Ifreq %d Index %d\n", + opp->perf, opp->power, opp->trans_latency_us, + opp->indicative_freq, opp->level_index); + + return 0; +} + +static int +scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph, + struct perf_dom_info *perf_dom, u32 version) +{ + int ret; + void *iter; + struct scmi_iterator_ops ops = { + .prepare_message = iter_perf_levels_prepare_message, + .update_state = iter_perf_levels_update_state, + .process_response = iter_perf_levels_process_response, + }; + struct scmi_perf_ipriv ppriv = { + .version = version, + .perf_dom = perf_dom, + }; + + iter = ph->hops->iter_response_init(ph, &ops, MAX_OPPS, + PERF_DESCRIBE_LEVELS, + sizeof(struct scmi_msg_perf_describe_levels), + &ppriv); + if (IS_ERR(iter)) + return PTR_ERR(iter); + + ret = ph->hops->iter_response_run(iter); if (ret) return ret; - dom_info = t->tx.buf; - level_info = t->rx.buf; + if (perf_dom->opp_count) + sort(perf_dom->opp, perf_dom->opp_count, + sizeof(struct scmi_opp), opp_cmp_func, NULL); - do { - dom_info->domain = cpu_to_le32(domain); - /* Set the number of OPPs to be skipped/already read */ - dom_info->level_index = cpu_to_le32(tot_opp_cnt); + return ret; +} - ret = scmi_do_xfer(handle, t); - if (ret) - break; +static int scmi_perf_num_domains_get(const struct scmi_protocol_handle *ph) +{ + struct scmi_perf_info *pi = ph->get_priv(ph); - num_returned = le16_to_cpu(level_info->num_returned); - num_remaining = le16_to_cpu(level_info->num_remaining); - if (tot_opp_cnt + num_returned > MAX_OPPS) { - dev_err(handle->dev, "No. of OPPs exceeded MAX_OPPS"); - break; - } + return pi->num_domains; +} - opp = &perf_dom->opp[tot_opp_cnt]; - for (cnt = 0; cnt < num_returned; cnt++, opp++) { - opp->perf = le32_to_cpu(level_info->opp[cnt].perf_val); - opp->power = le32_to_cpu(level_info->opp[cnt].power); - opp->trans_latency_us = le16_to_cpu - (level_info->opp[cnt].transition_latency_us); +static inline struct perf_dom_info * +scmi_perf_domain_lookup(const struct scmi_protocol_handle *ph, u32 domain) +{ + struct scmi_perf_info *pi = ph->get_priv(ph); - dev_dbg(handle->dev, "Level %d Power %d Latency %dus\n", - opp->perf, opp->power, opp->trans_latency_us); - } + if (domain >= pi->num_domains) + return ERR_PTR(-EINVAL); - tot_opp_cnt += num_returned; - /* - * check for both returned and remaining to avoid infinite - * loop due to buggy firmware - */ - } while (num_returned && num_remaining); + return pi->dom_info + domain; +} - perf_dom->opp_count = tot_opp_cnt; - scmi_xfer_put(handle, t); +static const struct scmi_perf_domain_info * +scmi_perf_info_get(const struct scmi_protocol_handle *ph, u32 domain) +{ + struct perf_dom_info *dom; - sort(perf_dom->opp, tot_opp_cnt, sizeof(*opp), opp_cmp_func, NULL); - return ret; + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return ERR_PTR(-EINVAL); + + return &dom->info; } -static int scmi_perf_limits_set(const struct scmi_handle *handle, u32 domain, - u32 max_perf, u32 min_perf) +static int scmi_perf_msg_limits_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 max_perf, u32 min_perf) { int ret; struct scmi_xfer *t; struct scmi_perf_set_limits *limits; - ret = scmi_xfer_get_init(handle, PERF_LIMITS_SET, SCMI_PROTOCOL_PERF, - sizeof(*limits), 0, &t); + ret = ph->xops->xfer_get_init(ph, PERF_LIMITS_SET, + sizeof(*limits), 0, &t); if (ret) return ret; @@ -266,27 +549,84 @@ static int scmi_perf_limits_set(const struct scmi_handle *handle, u32 domain, limits->max_level = cpu_to_le32(max_perf); limits->min_level = cpu_to_le32(min_perf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_perf_limits_get(const struct scmi_handle *handle, u32 domain, - u32 *max_perf, u32 *min_perf) +static int __scmi_perf_limits_set(const struct scmi_protocol_handle *ph, + struct perf_dom_info *dom, u32 max_perf, + u32 min_perf) +{ + if (dom->fc_info && dom->fc_info[PERF_FC_LIMIT].set_addr) { + struct scmi_fc_info *fci = &dom->fc_info[PERF_FC_LIMIT]; + + trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LIMITS_SET, + dom->id, min_perf, max_perf); + iowrite32(max_perf, fci->set_addr); + iowrite32(min_perf, fci->set_addr + 4); + ph->hops->fastchannel_db_ring(fci->set_db); + return 0; + } + + return scmi_perf_msg_limits_set(ph, dom->id, max_perf, min_perf); +} + +static int scmi_perf_limits_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 max_perf, u32 min_perf) +{ + struct scmi_perf_info *pi = ph->get_priv(ph); + struct perf_dom_info *dom; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); + + if (!dom->set_limits) + return -EOPNOTSUPP; + + if (PROTOCOL_REV_MAJOR(pi->version) >= 0x3 && !max_perf && !min_perf) + return -EINVAL; + + if (dom->level_indexing_mode) { + struct scmi_opp *opp; + + if (min_perf) { + opp = xa_load(&dom->opps_by_lvl, min_perf); + if (!opp) + return -EIO; + + min_perf = opp->level_index; + } + + if (max_perf) { + opp = xa_load(&dom->opps_by_lvl, max_perf); + if (!opp) + return -EIO; + + max_perf = opp->level_index; + } + } + + return __scmi_perf_limits_set(ph, dom, max_perf, min_perf); +} + +static int scmi_perf_msg_limits_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *max_perf, u32 *min_perf) { int ret; struct scmi_xfer *t; struct scmi_perf_get_limits *limits; - ret = scmi_xfer_get_init(handle, PERF_LIMITS_GET, SCMI_PROTOCOL_PERF, - sizeof(__le32), 0, &t); + ret = ph->xops->xfer_get_init(ph, PERF_LIMITS_GET, + sizeof(__le32), 0, &t); if (ret) return ret; - *(__le32 *)t->tx.buf = cpu_to_le32(domain); + put_unaligned_le32(domain, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) { limits = t->rx.buf; @@ -294,19 +634,68 @@ static int scmi_perf_limits_get(const struct scmi_handle *handle, u32 domain, *min_perf = le32_to_cpu(limits->min_level); } - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_perf_level_set(const struct scmi_handle *handle, u32 domain, - u32 level, bool poll) +static int __scmi_perf_limits_get(const struct scmi_protocol_handle *ph, + struct perf_dom_info *dom, u32 *max_perf, + u32 *min_perf) +{ + if (dom->fc_info && dom->fc_info[PERF_FC_LIMIT].get_addr) { + struct scmi_fc_info *fci = &dom->fc_info[PERF_FC_LIMIT]; + + *max_perf = ioread32(fci->get_addr); + *min_perf = ioread32(fci->get_addr + 4); + trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LIMITS_GET, + dom->id, *min_perf, *max_perf); + return 0; + } + + return scmi_perf_msg_limits_get(ph, dom->id, max_perf, min_perf); +} + +static int scmi_perf_limits_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *max_perf, u32 *min_perf) +{ + int ret; + struct perf_dom_info *dom; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); + + ret = __scmi_perf_limits_get(ph, dom, max_perf, min_perf); + if (ret) + return ret; + + if (dom->level_indexing_mode) { + struct scmi_opp *opp; + + opp = xa_load(&dom->opps_by_idx, *min_perf); + if (!opp) + return -EIO; + + *min_perf = opp->perf; + + opp = xa_load(&dom->opps_by_idx, *max_perf); + if (!opp) + return -EIO; + + *max_perf = opp->perf; + } + + return 0; +} + +static int scmi_perf_msg_level_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 level, bool poll) { int ret; struct scmi_xfer *t; struct scmi_perf_set_level *lvl; - ret = scmi_xfer_get_init(handle, PERF_LEVEL_SET, SCMI_PROTOCOL_PERF, - sizeof(*lvl), 0, &t); + ret = ph->xops->xfer_get_init(ph, PERF_LEVEL_SET, sizeof(*lvl), 0, &t); if (ret) return ret; @@ -315,133 +704,319 @@ static int scmi_perf_level_set(const struct scmi_handle *handle, u32 domain, lvl->domain = cpu_to_le32(domain); lvl->level = cpu_to_le32(level); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -static int scmi_perf_level_get(const struct scmi_handle *handle, u32 domain, - u32 *level, bool poll) +static int __scmi_perf_level_set(const struct scmi_protocol_handle *ph, + struct perf_dom_info *dom, u32 level, + bool poll) +{ + if (dom->fc_info && dom->fc_info[PERF_FC_LEVEL].set_addr) { + struct scmi_fc_info *fci = &dom->fc_info[PERF_FC_LEVEL]; + + trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LEVEL_SET, + dom->id, level, 0); + iowrite32(level, fci->set_addr); + ph->hops->fastchannel_db_ring(fci->set_db); + return 0; + } + + return scmi_perf_msg_level_set(ph, dom->id, level, poll); +} + +static int scmi_perf_level_set(const struct scmi_protocol_handle *ph, + u32 domain, u32 level, bool poll) +{ + struct perf_dom_info *dom; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); + + if (!dom->info.set_perf) + return -EOPNOTSUPP; + + if (dom->level_indexing_mode) { + struct scmi_opp *opp; + + opp = xa_load(&dom->opps_by_lvl, level); + if (!opp) + return -EIO; + + level = opp->level_index; + } + + return __scmi_perf_level_set(ph, dom, level, poll); +} + +static int scmi_perf_msg_level_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *level, bool poll) { int ret; struct scmi_xfer *t; - ret = scmi_xfer_get_init(handle, PERF_LEVEL_GET, SCMI_PROTOCOL_PERF, - sizeof(u32), sizeof(u32), &t); + ret = ph->xops->xfer_get_init(ph, PERF_LEVEL_GET, + sizeof(u32), sizeof(u32), &t); if (ret) return ret; t->hdr.poll_completion = poll; - *(__le32 *)t->tx.buf = cpu_to_le32(domain); + put_unaligned_le32(domain, t->tx.buf); - ret = scmi_do_xfer(handle, t); + ret = ph->xops->do_xfer(ph, t); if (!ret) - *level = le32_to_cpu(*(__le32 *)t->rx.buf); + *level = get_unaligned_le32(t->rx.buf); - scmi_xfer_put(handle, t); + ph->xops->xfer_put(ph, t); return ret; } -/* Device specific ops */ -static int scmi_dev_domain_id(struct device *dev) +static int __scmi_perf_level_get(const struct scmi_protocol_handle *ph, + struct perf_dom_info *dom, u32 *level, + bool poll) { - struct of_phandle_args clkspec; + if (dom->fc_info && dom->fc_info[PERF_FC_LEVEL].get_addr) { + *level = ioread32(dom->fc_info[PERF_FC_LEVEL].get_addr); + trace_scmi_fc_call(SCMI_PROTOCOL_PERF, PERF_LEVEL_GET, + dom->id, *level, 0); + return 0; + } - if (of_parse_phandle_with_args(dev->of_node, "clocks", "#clock-cells", - 0, &clkspec)) - return -EINVAL; + return scmi_perf_msg_level_get(ph, dom->id, level, poll); +} + +static int scmi_perf_level_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *level, bool poll) +{ + int ret; + struct perf_dom_info *dom; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); - return clkspec.args[0]; + ret = __scmi_perf_level_get(ph, dom, level, poll); + if (ret) + return ret; + + if (dom->level_indexing_mode) { + struct scmi_opp *opp; + + opp = xa_load(&dom->opps_by_idx, *level); + if (!opp) + return -EIO; + + *level = opp->perf; + } + + return 0; } -static int scmi_dvfs_device_opps_add(const struct scmi_handle *handle, - struct device *dev) +static int scmi_perf_level_limits_notify(const struct scmi_protocol_handle *ph, + u32 domain, int message_id, + bool enable) { - int idx, ret, domain; + int ret; + struct scmi_xfer *t; + struct scmi_perf_notify_level_or_limits *notify; + + ret = ph->xops->xfer_get_init(ph, message_id, sizeof(*notify), 0, &t); + if (ret) + return ret; + + notify = t->tx.buf; + notify->domain = cpu_to_le32(domain); + notify->notify_enable = enable ? cpu_to_le32(BIT(0)) : 0; + + ret = ph->xops->do_xfer(ph, t); + + ph->xops->xfer_put(ph, t); + return ret; +} + +static void scmi_perf_domain_init_fc(const struct scmi_protocol_handle *ph, + struct perf_dom_info *dom) +{ + struct scmi_fc_info *fc; + + fc = devm_kcalloc(ph->dev, PERF_FC_MAX, sizeof(*fc), GFP_KERNEL); + if (!fc) + return; + + ph->hops->fastchannel_init(ph, PERF_DESCRIBE_FASTCHANNEL, + PERF_LEVEL_GET, 4, dom->id, + &fc[PERF_FC_LEVEL].get_addr, NULL, + &fc[PERF_FC_LEVEL].rate_limit); + + ph->hops->fastchannel_init(ph, PERF_DESCRIBE_FASTCHANNEL, + PERF_LIMITS_GET, 8, dom->id, + &fc[PERF_FC_LIMIT].get_addr, NULL, + &fc[PERF_FC_LIMIT].rate_limit); + + if (dom->info.set_perf) + ph->hops->fastchannel_init(ph, PERF_DESCRIBE_FASTCHANNEL, + PERF_LEVEL_SET, 4, dom->id, + &fc[PERF_FC_LEVEL].set_addr, + &fc[PERF_FC_LEVEL].set_db, + &fc[PERF_FC_LEVEL].rate_limit); + + if (dom->set_limits) + ph->hops->fastchannel_init(ph, PERF_DESCRIBE_FASTCHANNEL, + PERF_LIMITS_SET, 8, dom->id, + &fc[PERF_FC_LIMIT].set_addr, + &fc[PERF_FC_LIMIT].set_db, + &fc[PERF_FC_LIMIT].rate_limit); + + dom->fc_info = fc; +} + +static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph, + struct device *dev, u32 domain) +{ + int idx, ret; unsigned long freq; - struct scmi_opp *opp; + struct dev_pm_opp_data data = {}; struct perf_dom_info *dom; - struct scmi_perf_info *pi = handle->perf_priv; - domain = scmi_dev_domain_id(dev); - if (domain < 0) - return domain; + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); - dom = pi->dom_info + domain; + for (idx = 0; idx < dom->opp_count; idx++) { + if (!dom->level_indexing_mode) + freq = dom->opp[idx].perf * dom->mult_factor; + else + freq = dom->opp[idx].indicative_freq * dom->mult_factor; - for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) { - freq = opp->perf * dom->mult_factor; + /* All OPPs above the sustained frequency are treated as turbo */ + data.turbo = freq > dom->sustained_freq_khz * 1000UL; - ret = dev_pm_opp_add(dev, freq, 0); - if (ret) { - dev_warn(dev, "failed to add opp %luHz\n", freq); + data.level = dom->opp[idx].perf; + data.freq = freq; - while (idx-- > 0) { - freq = (--opp)->perf * dom->mult_factor; - dev_pm_opp_remove(dev, freq); - } + ret = dev_pm_opp_add_dynamic(dev, &data); + if (ret) { + dev_warn(dev, "[%d][%s]: Failed to add OPP[%d] %lu\n", + domain, dom->info.name, idx, freq); + dev_pm_opp_remove_all_dynamic(dev); return ret; } + + dev_dbg(dev, "[%d][%s]:: Registered OPP[%d] %lu\n", + domain, dom->info.name, idx, freq); } return 0; } -static int scmi_dvfs_transition_latency_get(const struct scmi_handle *handle, - struct device *dev) +static int +scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph, + u32 domain) { struct perf_dom_info *dom; - struct scmi_perf_info *pi = handle->perf_priv; - int domain = scmi_dev_domain_id(dev); - if (domain < 0) - return domain; + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); - dom = pi->dom_info + domain; /* uS to nS */ return dom->opp[dom->opp_count - 1].trans_latency_us * 1000; } -static int scmi_dvfs_freq_set(const struct scmi_handle *handle, u32 domain, +static int +scmi_dvfs_rate_limit_get(const struct scmi_protocol_handle *ph, + u32 domain, u32 *rate_limit) +{ + struct perf_dom_info *dom; + + if (!rate_limit) + return -EINVAL; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); + + *rate_limit = dom->rate_limit_us; + return 0; +} + +static int scmi_dvfs_freq_set(const struct scmi_protocol_handle *ph, u32 domain, unsigned long freq, bool poll) { - struct scmi_perf_info *pi = handle->perf_priv; - struct perf_dom_info *dom = pi->dom_info + domain; + unsigned int level; + struct perf_dom_info *dom; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); - return scmi_perf_level_set(handle, domain, freq / dom->mult_factor, - poll); + if (!dom->level_indexing_mode) { + level = freq / dom->mult_factor; + } else { + struct scmi_opp *opp; + + opp = LOOKUP_BY_FREQ(dom->opps_by_freq, + freq / dom->mult_factor); + if (!opp) + return -EIO; + + level = opp->level_index; + } + + return __scmi_perf_level_set(ph, dom, level, poll); } -static int scmi_dvfs_freq_get(const struct scmi_handle *handle, u32 domain, +static int scmi_dvfs_freq_get(const struct scmi_protocol_handle *ph, u32 domain, unsigned long *freq, bool poll) { int ret; u32 level; - struct scmi_perf_info *pi = handle->perf_priv; - struct perf_dom_info *dom = pi->dom_info + domain; + struct perf_dom_info *dom; - ret = scmi_perf_level_get(handle, domain, &level, poll); - if (!ret) + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); + + ret = __scmi_perf_level_get(ph, dom, &level, poll); + if (ret) + return ret; + + if (!dom->level_indexing_mode) { *freq = level * dom->mult_factor; + } else { + struct scmi_opp *opp; + + opp = xa_load(&dom->opps_by_idx, level); + if (!opp) + return -EIO; + + *freq = opp->indicative_freq * dom->mult_factor; + } return ret; } -static int scmi_dvfs_est_power_get(const struct scmi_handle *handle, u32 domain, - unsigned long *freq, unsigned long *power) +static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph, + u32 domain, unsigned long *freq, + unsigned long *power) { - struct scmi_perf_info *pi = handle->perf_priv; struct perf_dom_info *dom; unsigned long opp_freq; int idx, ret = -EINVAL; struct scmi_opp *opp; - dom = pi->dom_info + domain; - if (!dom) - return -EIO; + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) { - opp_freq = opp->perf * dom->mult_factor; + if (!dom->level_indexing_mode) + opp_freq = opp->perf * dom->mult_factor; + else + opp_freq = opp->indicative_freq * dom->mult_factor; + if (opp_freq < *freq) continue; @@ -454,37 +1029,279 @@ static int scmi_dvfs_est_power_get(const struct scmi_handle *handle, u32 domain, return ret; } -static struct scmi_perf_ops perf_ops = { +static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph, + u32 domain) +{ + struct perf_dom_info *dom; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return false; + + return dom->fc_info && dom->fc_info[PERF_FC_LEVEL].set_addr; +} + +static int scmi_fast_switch_rate_limit(const struct scmi_protocol_handle *ph, + u32 domain, u32 *rate_limit) +{ + struct perf_dom_info *dom; + + if (!rate_limit) + return -EINVAL; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return PTR_ERR(dom); + + if (!dom->fc_info) + return -EINVAL; + + *rate_limit = dom->fc_info[PERF_FC_LEVEL].rate_limit; + return 0; +} + +static enum scmi_power_scale +scmi_power_scale_get(const struct scmi_protocol_handle *ph) +{ + struct scmi_perf_info *pi = ph->get_priv(ph); + + return pi->power_scale; +} + +static const struct scmi_perf_proto_ops perf_proto_ops = { + .num_domains_get = scmi_perf_num_domains_get, + .info_get = scmi_perf_info_get, .limits_set = scmi_perf_limits_set, .limits_get = scmi_perf_limits_get, .level_set = scmi_perf_level_set, .level_get = scmi_perf_level_get, - .device_domain_id = scmi_dev_domain_id, .transition_latency_get = scmi_dvfs_transition_latency_get, + .rate_limit_get = scmi_dvfs_rate_limit_get, .device_opps_add = scmi_dvfs_device_opps_add, .freq_set = scmi_dvfs_freq_set, .freq_get = scmi_dvfs_freq_get, .est_power_get = scmi_dvfs_est_power_get, + .fast_switch_possible = scmi_fast_switch_possible, + .fast_switch_rate_limit = scmi_fast_switch_rate_limit, + .power_scale_get = scmi_power_scale_get, }; -static int scmi_perf_protocol_init(struct scmi_handle *handle) +static bool scmi_perf_notify_supported(const struct scmi_protocol_handle *ph, + u8 evt_id, u32 src_id) { - int domain; + bool supported; + struct perf_dom_info *dom; + + if (evt_id >= ARRAY_SIZE(evt_2_cmd)) + return false; + + dom = scmi_perf_domain_lookup(ph, src_id); + if (IS_ERR(dom)) + return false; + + if (evt_id == SCMI_EVENT_PERFORMANCE_LIMITS_CHANGED) + supported = dom->perf_limit_notify; + else + supported = dom->perf_level_notify; + + return supported; +} + +static int scmi_perf_set_notify_enabled(const struct scmi_protocol_handle *ph, + u8 evt_id, u32 src_id, bool enable) +{ + int ret, cmd_id; + + if (evt_id >= ARRAY_SIZE(evt_2_cmd)) + return -EINVAL; + + cmd_id = evt_2_cmd[evt_id]; + ret = scmi_perf_level_limits_notify(ph, src_id, cmd_id, enable); + if (ret) + pr_debug("FAIL_ENABLED - evt[%X] dom[%d] - ret:%d\n", + evt_id, src_id, ret); + + return ret; +} + +static int +scmi_perf_xlate_opp_to_freq(struct perf_dom_info *dom, + unsigned int index, unsigned long *freq) +{ + struct scmi_opp *opp; + + if (!dom || !freq) + return -EINVAL; + + if (!dom->level_indexing_mode) { + opp = xa_load(&dom->opps_by_lvl, index); + if (!opp) + return -ENODEV; + + *freq = opp->perf * dom->mult_factor; + } else { + opp = xa_load(&dom->opps_by_idx, index); + if (!opp) + return -ENODEV; + + *freq = opp->indicative_freq * dom->mult_factor; + } + + return 0; +} + +static void *scmi_perf_fill_custom_report(const struct scmi_protocol_handle *ph, + u8 evt_id, ktime_t timestamp, + const void *payld, size_t payld_sz, + void *report, u32 *src_id) +{ + int ret; + void *rep = NULL; + struct perf_dom_info *dom; + + switch (evt_id) { + case SCMI_EVENT_PERFORMANCE_LIMITS_CHANGED: + { + const struct scmi_perf_limits_notify_payld *p = payld; + struct scmi_perf_limits_report *r = report; + unsigned long freq_min, freq_max; + + if (sizeof(*p) != payld_sz) + break; + + r->timestamp = timestamp; + r->agent_id = le32_to_cpu(p->agent_id); + r->domain_id = le32_to_cpu(p->domain_id); + r->range_max = le32_to_cpu(p->range_max); + r->range_min = le32_to_cpu(p->range_min); + /* Check if the reported domain exist at all */ + dom = scmi_perf_domain_lookup(ph, r->domain_id); + if (IS_ERR(dom)) + break; + /* + * Event will be reported from this point on... + * ...even if, later, xlated frequencies were not retrieved. + */ + *src_id = r->domain_id; + rep = r; + + ret = scmi_perf_xlate_opp_to_freq(dom, r->range_max, &freq_max); + if (ret) + break; + + ret = scmi_perf_xlate_opp_to_freq(dom, r->range_min, &freq_min); + if (ret) + break; + + /* Report translated freqs ONLY if both available */ + r->range_max_freq = freq_max; + r->range_min_freq = freq_min; + + break; + } + case SCMI_EVENT_PERFORMANCE_LEVEL_CHANGED: + { + const struct scmi_perf_level_notify_payld *p = payld; + struct scmi_perf_level_report *r = report; + unsigned long freq; + + if (sizeof(*p) != payld_sz) + break; + + r->timestamp = timestamp; + r->agent_id = le32_to_cpu(p->agent_id); + r->domain_id = le32_to_cpu(p->domain_id); + /* Report translated freqs ONLY if available */ + r->performance_level = le32_to_cpu(p->performance_level); + /* Check if the reported domain exist at all */ + dom = scmi_perf_domain_lookup(ph, r->domain_id); + if (IS_ERR(dom)) + break; + /* + * Event will be reported from this point on... + * ...even if, later, xlated frequencies were not retrieved. + */ + *src_id = r->domain_id; + rep = r; + + /* Report translated freqs ONLY if available */ + ret = scmi_perf_xlate_opp_to_freq(dom, r->performance_level, + &freq); + if (ret) + break; + + r->performance_level_freq = freq; + + break; + } + default: + break; + } + + return rep; +} + +static int scmi_perf_get_num_sources(const struct scmi_protocol_handle *ph) +{ + struct scmi_perf_info *pi = ph->get_priv(ph); + + if (!pi) + return -EINVAL; + + return pi->num_domains; +} + +static const struct scmi_event perf_events[] = { + { + .id = SCMI_EVENT_PERFORMANCE_LIMITS_CHANGED, + .max_payld_sz = sizeof(struct scmi_perf_limits_notify_payld), + .max_report_sz = sizeof(struct scmi_perf_limits_report), + }, + { + .id = SCMI_EVENT_PERFORMANCE_LEVEL_CHANGED, + .max_payld_sz = sizeof(struct scmi_perf_level_notify_payld), + .max_report_sz = sizeof(struct scmi_perf_level_report), + }, +}; + +static const struct scmi_event_ops perf_event_ops = { + .is_notify_supported = scmi_perf_notify_supported, + .get_num_sources = scmi_perf_get_num_sources, + .set_notify_enabled = scmi_perf_set_notify_enabled, + .fill_custom_report = scmi_perf_fill_custom_report, +}; + +static const struct scmi_protocol_events perf_protocol_events = { + .queue_sz = SCMI_PROTO_QUEUE_SZ, + .ops = &perf_event_ops, + .evts = perf_events, + .num_events = ARRAY_SIZE(perf_events), +}; + +static int scmi_perf_protocol_init(const struct scmi_protocol_handle *ph) +{ + int domain, ret; u32 version; struct scmi_perf_info *pinfo; - scmi_version_get(handle, SCMI_PROTOCOL_PERF, &version); + ret = ph->xops->version_get(ph, &version); + if (ret) + return ret; - dev_dbg(handle->dev, "Performance Version %d.%d\n", + dev_dbg(ph->dev, "Performance Version %d.%d\n", PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); - pinfo = devm_kzalloc(handle->dev, sizeof(*pinfo), GFP_KERNEL); + pinfo = devm_kzalloc(ph->dev, sizeof(*pinfo), GFP_KERNEL); if (!pinfo) return -ENOMEM; - scmi_perf_attributes_get(handle, pinfo); + pinfo->version = version; - pinfo->dom_info = devm_kcalloc(handle->dev, pinfo->num_domains, + ret = scmi_perf_attributes_get(ph, pinfo); + if (ret) + return ret; + + pinfo->dom_info = devm_kcalloc(ph->dev, pinfo->num_domains, sizeof(*pinfo->dom_info), GFP_KERNEL); if (!pinfo->dom_info) return -ENOMEM; @@ -492,19 +1309,29 @@ static int scmi_perf_protocol_init(struct scmi_handle *handle) for (domain = 0; domain < pinfo->num_domains; domain++) { struct perf_dom_info *dom = pinfo->dom_info + domain; - scmi_perf_domain_attributes_get(handle, domain, dom); - scmi_perf_describe_levels_get(handle, domain, dom); + dom->id = domain; + scmi_perf_domain_attributes_get(ph, dom, pinfo->notify_lim_cmd, + pinfo->notify_lvl_cmd, version); + scmi_perf_describe_levels_get(ph, dom, version); + + if (dom->perf_fastchannels) + scmi_perf_domain_init_fc(ph, dom); } - handle->perf_ops = &perf_ops; - handle->perf_priv = pinfo; + ret = devm_add_action_or_reset(ph->dev, scmi_perf_xa_destroy, pinfo); + if (ret) + return ret; - return 0; + return ph->set_priv(ph, pinfo, version); } -static int __init scmi_perf_init(void) -{ - return scmi_protocol_register(SCMI_PROTOCOL_PERF, - &scmi_perf_protocol_init); -} -subsys_initcall(scmi_perf_init); +static const struct scmi_protocol scmi_perf = { + .id = SCMI_PROTOCOL_PERF, + .owner = THIS_MODULE, + .instance_init = &scmi_perf_protocol_init, + .ops = &perf_proto_ops, + .events = &perf_protocol_events, + .supported_version = SCMI_PROTOCOL_SUPPORTED_VERSION, +}; + +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(perf, scmi_perf) |