The X1E80100 SoC hosts a number of cpu boost frequencies, so let's enable
boost support if the freq_table has any opps marked as turbo in it.

Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
---

v3:
* Don't set per-policy boost flags from the cpufreq driver. [Viresh]

 drivers/cpufreq/scmi-cpufreq.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c
index 0b483bd0d3ca..3b4f6bfb2f4c 100644
--- a/drivers/cpufreq/scmi-cpufreq.c
+++ b/drivers/cpufreq/scmi-cpufreq.c
@@ -30,6 +30,7 @@ struct scmi_data {
 
 static struct scmi_protocol_handle *ph;
 static const struct scmi_perf_proto_ops *perf_ops;
+static struct cpufreq_driver scmi_cpufreq_driver;
 
 static unsigned int scmi_cpufreq_get_rate(unsigned int cpu)
 {
@@ -167,6 +168,12 @@ scmi_get_rate_limit(u32 domain, bool has_fast_switch)
 	return rate_limit;
 }
 
+static struct freq_attr *scmi_cpufreq_hw_attr[] = {
+	&cpufreq_freq_attr_scaling_available_freqs,
+	NULL,
+	NULL,
+};
+
 static int scmi_cpufreq_init(struct cpufreq_policy *policy)
 {
 	int ret, nr_opp, domain;
@@ -276,6 +283,17 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
 	policy->transition_delay_us =
 		scmi_get_rate_limit(domain, policy->fast_switch_possible);
 
+	if (policy_has_boost_freq(policy)) {
+		ret = cpufreq_enable_boost_support();
+		if (ret) {
+			dev_warn(cpu_dev, "failed to enable boost: %d\n", ret);
+			goto out_free_opp;
+		} else {
+			scmi_cpufreq_hw_attr[1] = &cpufreq_freq_attr_scaling_boost_freqs;
+			scmi_cpufreq_driver.boost_enabled = true;
+		}
+	}
+
 	return 0;
 
 out_free_opp:
@@ -334,7 +352,7 @@ static struct cpufreq_driver scmi_cpufreq_driver = {
 		  CPUFREQ_NEED_INITIAL_FREQ_CHECK |
 		  CPUFREQ_IS_COOLING_DEV,
 	.verify	= cpufreq_generic_frequency_table_verify,
-	.attr	= cpufreq_generic_attr,
+	.attr	= scmi_cpufreq_hw_attr,
 	.target_index	= scmi_cpufreq_set_target,
 	.fast_switch	= scmi_cpufreq_fast_switch,
 	.get	= scmi_cpufreq_get_rate,
-- 
2.34.1

On Fri, Mar 08, 2024 at 04:14:10PM +0530, Sibi Sankar wrote:
> The X1E80100 SoC hosts a number of cpu boost frequencies, so let's enable
> boost support if the freq_table has any opps marked as turbo in it.
>

I had asked if you could put the information about how and when the boost
frequencies are used, it would be useful for reference purposes when someone
attempts to use this feature. But it is not a blocker, just good to have
info.

Also I would not sure specific platform name, just refer as certain platforms
as it such information becomes stale soon.

Anyways apart for those nits on the commit message, this looks good.

Reviewed-by: <viresh.kumar@linaro.org>

I am assuming Viresh might take both these changes for via his tree. If not,
I can take it for v6.10 after v6.9-rc1

-- 
Regards,
Sudeep

On 08-03-24, 14:06, Sudeep Holla wrote:
> Anyways apart for those nits on the commit message, this looks good.
> 
> Reviewed-by: <viresh.kumar@linaro.org>

:)

-- 
viresh

On Mon, Mar 11, 2024 at 10:25:13AM +0530, Viresh Kumar wrote:
> On 08-03-24, 14:06, Sudeep Holla wrote:
> > Anyways apart for those nits on the commit message, this looks good.
> > 
> > Reviewed-by: <viresh.kumar@linaro.org>
> 
> :)
>

😉

So stupid of me, I wanted to make sure you were in to and seem to have
copied the same address for my reviewed by. Sorry for that, obviously
I meant:

Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>

--
Regards,
Sudeep