[PATCH v7 11/38] firmware: arm_scmi: port Perf protocol to new protocols interface

Cristian Marussi
2021-03-16T12:55:32Z

Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->perf_ops still
around to ease transition.

Remove handle->perf_priv now unused.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
drivers/firmware/arm_scmi/perf.c | 349 ++++++++++++++++++++-----------
include/linux/scmi_protocol.h | 30 ++-
2 files changed, 258 insertions(+), 121 deletions(-)

diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 6e37a6ebfcd8..73f04d7809b3 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -175,21 +175,21 @@ static enum scmi_performance_protocol_cmd evt_2_cmd[] = {
PERF_NOTIFY_LEVEL,
};

-static int scmi_perf_attributes_get(const struct scmi_handle *handle,
+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);

@@ -200,28 +200,27 @@ static int scmi_perf_attributes_get(const struct scmi_handle *handle,
pi->stats_size = le32_to_cpu(attr->stats_size);
}

- scmi_xfer_put(handle, t);
+ ph->xops->xfer_put(ph, t);
return ret;
}

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,
+ u32 domain, struct perf_dom_info *dom_info)
{
int ret;
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(domain), sizeof(*attr), &t);
if (ret)
return ret;

put_unaligned_le32(domain, 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);

@@ -245,7 +244,7 @@ scmi_perf_domain_attributes_get(const struct scmi_handle *handle, u32 domain,
strlcpy(dom_info->name, attr->name, SCMI_MAX_STR_SIZE);
}

- scmi_xfer_put(handle, t);
+ ph->xops->xfer_put(ph, t);
return ret;
}

@@ -257,7 +256,7 @@ static int opp_cmp_func(const void *opp1, const void *opp2)
}

static int
-scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain,
+scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph, u32 domain,
struct perf_dom_info *perf_dom)
{
int ret, cnt;
@@ -268,8 +267,8 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain,
struct scmi_msg_perf_describe_levels *dom_info;
struct scmi_msg_resp_perf_describe_levels *level_info;

- ret = scmi_xfer_get_init(handle, PERF_DESCRIBE_LEVELS,
- SCMI_PROTOCOL_PERF, sizeof(*dom_info), 0, &t);
+ ret = ph->xops->xfer_get_init(ph, PERF_DESCRIBE_LEVELS,
+ sizeof(*dom_info), 0, &t);
if (ret)
return ret;

@@ -281,14 +280,14 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain,
/* Set the number of OPPs to be skipped/already read */
dom_info->level_index = cpu_to_le32(tot_opp_cnt);

- ret = scmi_do_xfer(handle, t);
+ ret = ph->xops->do_xfer(ph, t);
if (ret)
break;

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");
+ dev_err(ph->dev, "No. of OPPs exceeded MAX_OPPS");
break;
}

@@ -299,13 +298,13 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain,
opp->trans_latency_us = le16_to_cpu
(level_info->opp[cnt].transition_latency_us);

- dev_dbg(handle->dev, "Level %d Power %d Latency %dus\n",
+ dev_dbg(ph->dev, "Level %d Power %d Latency %dus\n",
opp->perf, opp->power, opp->trans_latency_us);
}

tot_opp_cnt += num_returned;

- scmi_reset_rx_to_maxsz(handle, t);
+ ph->xops->reset_rx_to_maxsz(ph, t);
/*
* check for both returned and remaining to avoid infinite
* loop due to buggy firmware
@@ -313,7 +312,7 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain,
} while (num_returned && num_remaining);

perf_dom->opp_count = tot_opp_cnt;
- scmi_xfer_put(handle, t);
+ ph->xops->xfer_put(ph, t);

sort(perf_dom->opp, tot_opp_cnt, sizeof(*opp), opp_cmp_func, NULL);
return ret;
@@ -353,15 +352,15 @@ static void scmi_perf_fc_ring_db(struct scmi_fc_db_info *db)
#endif
}

-static int scmi_perf_mb_limits_set(const struct scmi_handle *handle, u32 domain,
- u32 max_perf, u32 min_perf)
+static int scmi_perf_mb_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;

@@ -370,16 +369,16 @@ static int scmi_perf_mb_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_set(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,
+ u32 domain, u32 max_perf, u32 min_perf)
{
- struct scmi_perf_info *pi = handle->perf_priv;
+ struct scmi_perf_info *pi = ph->get_priv(ph);
struct perf_dom_info *dom = pi->dom_info + domain;

if (dom->fc_info && dom->fc_info->limit_set_addr) {
@@ -389,24 +388,33 @@ static int scmi_perf_limits_set(const struct scmi_handle *handle, u32 domain,
return 0;
}

- return scmi_perf_mb_limits_set(handle, domain, max_perf, min_perf);
+ return scmi_perf_mb_limits_set(ph, domain, max_perf, min_perf);
}

-static int scmi_perf_mb_limits_get(const struct scmi_handle *handle, u32 domain,
- u32 *max_perf, u32 *min_perf)
+static int __scmi_perf_limits_set(const struct scmi_handle *handle,
+ u32 domain, u32 max_perf, u32 min_perf)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_perf_limits_set(ph, domain, max_perf, min_perf);
+}
+
+static int scmi_perf_mb_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;

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;

@@ -414,14 +422,14 @@ static int scmi_perf_mb_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_limits_get(const struct scmi_handle *handle, u32 domain,
- u32 *max_perf, u32 *min_perf)
+static int scmi_perf_limits_get(const struct scmi_protocol_handle *ph,
+ u32 domain, u32 *max_perf, u32 *min_perf)
{
- struct scmi_perf_info *pi = handle->perf_priv;
+ struct scmi_perf_info *pi = ph->get_priv(ph);
struct perf_dom_info *dom = pi->dom_info + domain;

if (dom->fc_info && dom->fc_info->limit_get_addr) {
@@ -430,18 +438,26 @@ static int scmi_perf_limits_get(const struct scmi_handle *handle, u32 domain,
return 0;
}

- return scmi_perf_mb_limits_get(handle, domain, max_perf, min_perf);
+ return scmi_perf_mb_limits_get(ph, domain, max_perf, min_perf);
}

-static int scmi_perf_mb_level_set(const struct scmi_handle *handle, u32 domain,
- u32 level, bool poll)
+static int __scmi_perf_limits_get(const struct scmi_handle *handle,
+ u32 domain, u32 *max_perf, u32 *min_perf)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_perf_limits_get(ph, domain, max_perf, min_perf);
+}
+
+static int scmi_perf_mb_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;

@@ -450,16 +466,16 @@ static int scmi_perf_mb_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_set(const struct scmi_handle *handle, u32 domain,
- u32 level, bool poll)
+static int scmi_perf_level_set(const struct scmi_protocol_handle *ph,
+ u32 domain, u32 level, bool poll)
{
- struct scmi_perf_info *pi = handle->perf_priv;
+ struct scmi_perf_info *pi = ph->get_priv(ph);
struct perf_dom_info *dom = pi->dom_info + domain;

if (dom->fc_info && dom->fc_info->level_set_addr) {
@@ -468,35 +484,44 @@ static int scmi_perf_level_set(const struct scmi_handle *handle, u32 domain,
return 0;
}

- return scmi_perf_mb_level_set(handle, domain, level, poll);
+ return scmi_perf_mb_level_set(ph, domain, level, poll);
+}
+
+static int __scmi_perf_level_set(const struct scmi_handle *handle,
+ u32 domain, u32 level, bool poll)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_perf_level_set(ph, domain, level, poll);
}

-static int scmi_perf_mb_level_get(const struct scmi_handle *handle, u32 domain,
- u32 *level, bool poll)
+static int scmi_perf_mb_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;
put_unaligned_le32(domain, t->tx.buf);

- ret = scmi_do_xfer(handle, t);
+ ret = ph->xops->do_xfer(ph, t);
if (!ret)
*level = get_unaligned_le32(t->rx.buf);

- 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_get(const struct scmi_protocol_handle *ph,
+ u32 domain, u32 *level, bool poll)
{
- struct scmi_perf_info *pi = handle->perf_priv;
+ struct scmi_perf_info *pi = ph->get_priv(ph);
struct perf_dom_info *dom = pi->dom_info + domain;

if (dom->fc_info && dom->fc_info->level_get_addr) {
@@ -504,10 +529,19 @@ static int scmi_perf_level_get(const struct scmi_handle *handle, u32 domain,
return 0;
}

- return scmi_perf_mb_level_get(handle, domain, level, poll);
+ return scmi_perf_mb_level_get(ph, domain, level, poll);
+}
+
+static int __scmi_perf_level_get(const struct scmi_handle *handle,
+ u32 domain, u32 *level, bool poll)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_perf_level_get(ph, domain, level, poll);
}

-static int scmi_perf_level_limits_notify(const struct scmi_handle *handle,
+static int scmi_perf_level_limits_notify(const struct scmi_protocol_handle *ph,
u32 domain, int message_id,
bool enable)
{
@@ -515,8 +549,7 @@ static int scmi_perf_level_limits_notify(const struct scmi_handle *handle,
struct scmi_xfer *t;
struct scmi_perf_notify_level_or_limits *notify;

- ret = scmi_xfer_get_init(handle, message_id, SCMI_PROTOCOL_PERF,
- sizeof(*notify), 0, &t);
+ ret = ph->xops->xfer_get_init(ph, message_id, sizeof(*notify), 0, &t);
if (ret)
return ret;

@@ -524,9 +557,9 @@ static int scmi_perf_level_limits_notify(const struct scmi_handle *handle,
notify->domain = cpu_to_le32(domain);
notify->notify_enable = enable ? cpu_to_le32(BIT(0)) : 0;

- 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;
}

@@ -540,7 +573,7 @@ static bool scmi_perf_fc_size_is_valid(u32 msg, u32 size)
}

static void
-scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain,
+scmi_perf_domain_desc_fc(const struct scmi_protocol_handle *ph, u32 domain,
u32 message_id, void __iomem **p_addr,
struct scmi_fc_db_info **p_db)
{
@@ -557,9 +590,8 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain,
if (!p_addr)
return;

- ret = scmi_xfer_get_init(handle, PERF_DESCRIBE_FASTCHANNEL,
- SCMI_PROTOCOL_PERF,
- sizeof(*info), sizeof(*resp), &t);
+ ret = ph->xops->xfer_get_init(ph, PERF_DESCRIBE_FASTCHANNEL,
+ sizeof(*info), sizeof(*resp), &t);
if (ret)
return;

@@ -567,7 +599,7 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain,
info->domain = cpu_to_le32(domain);
info->message_id = cpu_to_le32(message_id);

- ret = scmi_do_xfer(handle, t);
+ ret = ph->xops->do_xfer(ph, t);
if (ret)
goto err_xfer;

@@ -579,20 +611,20 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain,

phys_addr = le32_to_cpu(resp->chan_addr_low);
phys_addr |= (u64)le32_to_cpu(resp->chan_addr_high) << 32;
- addr = devm_ioremap(handle->dev, phys_addr, size);
+ addr = devm_ioremap(ph->dev, phys_addr, size);
if (!addr)
goto err_xfer;
*p_addr = addr;

if (p_db && SUPPORTS_DOORBELL(flags)) {
- db = devm_kzalloc(handle->dev, sizeof(*db), GFP_KERNEL);
+ db = devm_kzalloc(ph->dev, sizeof(*db), GFP_KERNEL);
if (!db)
goto err_xfer;

size = 1 << DOORBELL_REG_WIDTH(flags);
phys_addr = le32_to_cpu(resp->db_addr_low);
phys_addr |= (u64)le32_to_cpu(resp->db_addr_high) << 32;
- addr = devm_ioremap(handle->dev, phys_addr, size);
+ addr = devm_ioremap(ph->dev, phys_addr, size);
if (!addr)
goto err_xfer;

@@ -605,25 +637,25 @@ scmi_perf_domain_desc_fc(const struct scmi_handle *handle, u32 domain,
*p_db = db;
}
err_xfer:
- scmi_xfer_put(handle, t);
+ ph->xops->xfer_put(ph, t);
}

-static void scmi_perf_domain_init_fc(const struct scmi_handle *handle,
+static void scmi_perf_domain_init_fc(const struct scmi_protocol_handle *ph,
u32 domain, struct scmi_fc_info **p_fc)
{
struct scmi_fc_info *fc;

- fc = devm_kzalloc(handle->dev, sizeof(*fc), GFP_KERNEL);
+ fc = devm_kzalloc(ph->dev, sizeof(*fc), GFP_KERNEL);
if (!fc)
return;

- scmi_perf_domain_desc_fc(handle, domain, PERF_LEVEL_SET,
+ scmi_perf_domain_desc_fc(ph, domain, PERF_LEVEL_SET,
&fc->level_set_addr, &fc->level_set_db);
- scmi_perf_domain_desc_fc(handle, domain, PERF_LEVEL_GET,
+ scmi_perf_domain_desc_fc(ph, domain, PERF_LEVEL_GET,
&fc->level_get_addr, NULL);
- scmi_perf_domain_desc_fc(handle, domain, PERF_LIMITS_SET,
+ scmi_perf_domain_desc_fc(ph, domain, PERF_LIMITS_SET,
&fc->limit_set_addr, &fc->limit_set_db);
- scmi_perf_domain_desc_fc(handle, domain, PERF_LIMITS_GET,
+ scmi_perf_domain_desc_fc(ph, domain, PERF_LIMITS_GET,
&fc->limit_get_addr, NULL);
*p_fc = fc;
}
@@ -640,14 +672,14 @@ static int scmi_dev_domain_id(struct device *dev)
return clkspec.args[0];
}

-static int scmi_dvfs_device_opps_add(const struct scmi_handle *handle,
+static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
struct device *dev)
{
int idx, ret, domain;
unsigned long freq;
struct scmi_opp *opp;
struct perf_dom_info *dom;
- struct scmi_perf_info *pi = handle->perf_priv;
+ struct scmi_perf_info *pi = ph->get_priv(ph);

domain = scmi_dev_domain_id(dev);
if (domain < 0)
@@ -672,11 +704,21 @@ static int scmi_dvfs_device_opps_add(const struct scmi_handle *handle,
return 0;
}

-static int scmi_dvfs_transition_latency_get(const struct scmi_handle *handle,
- struct device *dev)
+static int __scmi_dvfs_device_opps_add(const struct scmi_handle *handle,
+ struct device *dev)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_dvfs_device_opps_add(ph, dev);
+}
+
+static int
+scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph,
+ struct device *dev)
{
struct perf_dom_info *dom;
- struct scmi_perf_info *pi = handle->perf_priv;
+ struct scmi_perf_info *pi = ph->get_priv(ph);
int domain = scmi_dev_domain_id(dev);

if (domain < 0)
@@ -687,35 +729,63 @@ static int scmi_dvfs_transition_latency_get(const struct scmi_handle *handle,
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_transition_latency_get(const struct scmi_handle *handle,
+ struct device *dev)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_dvfs_transition_latency_get(ph, dev);
+}
+
+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 scmi_perf_info *pi = ph->get_priv(ph);
struct perf_dom_info *dom = pi->dom_info + domain;

- return scmi_perf_level_set(handle, domain, freq / dom->mult_factor,
- poll);
+ return scmi_perf_level_set(ph, domain, freq / dom->mult_factor, poll);
}

-static int scmi_dvfs_freq_get(const struct scmi_handle *handle, u32 domain,
+static int __scmi_dvfs_freq_set(const struct scmi_handle *handle,
+ u32 domain, unsigned long freq, bool poll)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_dvfs_freq_set(ph, domain, freq, poll);
+}
+
+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 scmi_perf_info *pi = ph->get_priv(ph);
struct perf_dom_info *dom = pi->dom_info + domain;

- ret = scmi_perf_level_get(handle, domain, &level, poll);
+ ret = scmi_perf_level_get(ph, domain, &level, poll);
if (!ret)
*freq = level * 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_freq_get(const struct scmi_handle *handle, u32 domain,
+ unsigned long *freq, bool poll)
{
- struct scmi_perf_info *pi = handle->perf_priv;
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_dvfs_freq_get(ph, domain, freq, poll);
+}
+
+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 = ph->get_priv(ph);
struct perf_dom_info *dom;
unsigned long opp_freq;
int idx, ret = -EINVAL;
@@ -739,25 +809,67 @@ static int scmi_dvfs_est_power_get(const struct scmi_handle *handle, u32 domain,
return ret;
}

-static bool scmi_fast_switch_possible(const struct scmi_handle *handle,
+static int __scmi_dvfs_est_power_get(const struct scmi_handle *handle,
+ u32 domain, unsigned long *freq,
+ unsigned long *power)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_dvfs_est_power_get(ph, domain, freq, power);
+}
+
+static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph,
struct device *dev)
{
struct perf_dom_info *dom;
- struct scmi_perf_info *pi = handle->perf_priv;
+ struct scmi_perf_info *pi = ph->get_priv(ph);

dom = pi->dom_info + scmi_dev_domain_id(dev);

return dom->fc_info && dom->fc_info->level_set_addr;
}

-static bool scmi_power_scale_mw_get(const struct scmi_handle *handle)
+static bool __scmi_fast_switch_possible(const struct scmi_handle *handle,
+ struct device *dev)
{
- struct scmi_perf_info *pi = handle->perf_priv;
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_fast_switch_possible(ph, dev);
+}
+
+static bool scmi_power_scale_mw_get(const struct scmi_protocol_handle *ph)
+{
+ struct scmi_perf_info *pi = ph->get_priv(ph);

return pi->power_scale_mw;
}

+static bool __scmi_power_scale_mw_get(const struct scmi_handle *handle)
+{
+ const struct scmi_protocol_handle *ph =
+ scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
+
+ return scmi_power_scale_mw_get(ph);
+}
+
static const struct scmi_perf_ops perf_ops = {
+ .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,
+ .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,
+ .power_scale_mw_get = __scmi_power_scale_mw_get,
+};
+
+static const struct scmi_perf_proto_ops perf_proto_ops = {
.limits_set = scmi_perf_limits_set,
.limits_get = scmi_perf_limits_get,
.level_set = scmi_perf_level_set,
@@ -772,7 +884,7 @@ static const struct scmi_perf_ops perf_ops = {
.power_scale_mw_get = scmi_power_scale_mw_get,
};

-static int scmi_perf_set_notify_enabled(const void *handle,
+static int scmi_perf_set_notify_enabled(const void *ph,
u8 evt_id, u32 src_id, bool enable)
{
int ret, cmd_id;
@@ -781,7 +893,7 @@ static int scmi_perf_set_notify_enabled(const void *handle,
return -EINVAL;

cmd_id = evt_2_cmd[evt_id];
- ret = scmi_perf_level_limits_notify(handle, src_id, cmd_id, enable);
+ 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);
@@ -789,7 +901,7 @@ static int scmi_perf_set_notify_enabled(const void *handle,
return ret;
}

-static void *scmi_perf_fill_custom_report(const void *handle,
+static void *scmi_perf_fill_custom_report(const void *ph,
u8 evt_id, ktime_t timestamp,
const void *payld, size_t payld_sz,
void *report, u32 *src_id)
@@ -837,10 +949,10 @@ static void *scmi_perf_fill_custom_report(const void *handle,
return rep;
}

-static int scmi_perf_get_num_sources(const void *handle)
+static int scmi_perf_get_num_sources(const void *ph)
{
struct scmi_perf_info *pi =
- ((const struct scmi_handle *)(handle))->perf_priv;
+ ((const struct scmi_protocol_handle *)ph)->get_priv(ph);

if (!pi)
return -EINVAL;
@@ -874,24 +986,25 @@ static const struct scmi_protocol_events perf_protocol_events = {
.num_events = ARRAY_SIZE(perf_events),
};

-static int scmi_perf_protocol_init(struct scmi_handle *handle)
+static int scmi_perf_protocol_init(const struct scmi_protocol_handle *ph)
{
int domain;
u32 version;
struct scmi_perf_info *pinfo;
+ struct scmi_handle *handle;

- scmi_version_get(handle, SCMI_PROTOCOL_PERF, &version);
+ ph->xops->version_get(ph, &version);

- 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);
+ scmi_perf_attributes_get(ph, pinfo);

- pinfo->dom_info = devm_kcalloc(handle->dev, pinfo->num_domains,
+ pinfo->dom_info = devm_kcalloc(ph->dev, pinfo->num_domains,
sizeof(*pinfo->dom_info), GFP_KERNEL);
if (!pinfo->dom_info)
return -ENOMEM;
@@ -899,24 +1012,26 @@ 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);
+ scmi_perf_domain_attributes_get(ph, domain, dom);
+ scmi_perf_describe_levels_get(ph, domain, dom);

if (dom->perf_fastchannels)
- scmi_perf_domain_init_fc(handle, domain, &dom->fc_info);
+ scmi_perf_domain_init_fc(ph, domain, &dom->fc_info);
}

pinfo->version = version;
+
+ /* Transient code for legacy ops interface */
+ handle = scmi_map_scmi_handle(ph);
handle->perf_ops = &perf_ops;
- handle->perf_priv = pinfo;

- return 0;
+ return ph->set_priv(ph, pinfo);
}

static const struct scmi_protocol scmi_perf = {
.id = SCMI_PROTOCOL_PERF,
- .init = &scmi_perf_protocol_init,
- .ops = &perf_ops,
+ .instance_init = &scmi_perf_protocol_init,
+ .ops = &perf_proto_ops,
.events = &perf_protocol_events,
};

diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h
index 2b66b243e841..c658aec78e15 100644
--- a/include/linux/scmi_protocol.h
+++ b/include/linux/scmi_protocol.h
@@ -85,7 +85,7 @@ struct scmi_clk_ops {
};

/**
- * struct scmi_perf_ops - represents the various operations provided
+ * struct scmi_perf_proto_ops - represents the various operations provided
* by SCMI Performance Protocol
*
* @limits_set: sets limits on the performance level of a domain
@@ -102,6 +102,31 @@ struct scmi_clk_ops {
* @est_power_get: gets the estimated power cost for a given performance domain
* at a given frequency
*/
+struct scmi_perf_proto_ops {
+ int (*limits_set)(const struct scmi_protocol_handle *ph, u32 domain,
+ u32 max_perf, u32 min_perf);
+ int (*limits_get)(const struct scmi_protocol_handle *ph, u32 domain,
+ u32 *max_perf, u32 *min_perf);
+ int (*level_set)(const struct scmi_protocol_handle *ph, u32 domain,
+ u32 level, bool poll);
+ int (*level_get)(const struct scmi_protocol_handle *ph, u32 domain,
+ u32 *level, bool poll);
+ int (*device_domain_id)(struct device *dev);
+ int (*transition_latency_get)(const struct scmi_protocol_handle *ph,
+ struct device *dev);
+ int (*device_opps_add)(const struct scmi_protocol_handle *ph,
+ struct device *dev);
+ int (*freq_set)(const struct scmi_protocol_handle *ph, u32 domain,
+ unsigned long rate, bool poll);
+ int (*freq_get)(const struct scmi_protocol_handle *ph, u32 domain,
+ unsigned long *rate, bool poll);
+ int (*est_power_get)(const struct scmi_protocol_handle *ph, u32 domain,
+ unsigned long *rate, unsigned long *power);
+ bool (*fast_switch_possible)(const struct scmi_protocol_handle *ph,
+ struct device *dev);
+ bool (*power_scale_mw_get)(const struct scmi_protocol_handle *ph);
+};
+
struct scmi_perf_ops {
int (*limits_set)(const struct scmi_handle *handle, u32 domain,
u32 max_perf, u32 min_perf);
@@ -615,8 +640,6 @@ struct scmi_notify_ops {
* operations and a dedicated protocol handler
* @devm_protocol_put: devres managed method to release a protocol
* @notify_ops: pointer to set of notifications related operations
- * @perf_priv: pointer to private data structure specific to performance
- * protocol(for internal use only)
* @clk_priv: pointer to private data structure specific to clock
* protocol(for internal use only)
* @power_priv: pointer to private data structure specific to power
@@ -647,7 +670,6 @@ struct scmi_handle {

const struct scmi_notify_ops *notify_ops;
/* for protocol internal use */
- void *perf_priv;
void *clk_priv;
void *power_priv;
void *sensor_priv;