summaryrefslogtreecommitdiff
path: root/drivers/opp/core.c
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2025-01-13 11:14:06 +1000
committerDave Airlie <airlied@redhat.com>2025-01-13 11:14:07 +1000
commit24c61d553302ee49e9c21dd251275ba8c36dcfe4 (patch)
tree3ee8731a0936b1825f38e0b7663790371cc139d1 /drivers/opp/core.c
parentc3d590f8ba0474bb77b91efc49f9ed91a8181f97 (diff)
parent866e43b945bf98f8e807dfa45eca92f931f3a032 (diff)
Merge tag 'drm-msm-next-2025-01-07' of gitlab.freedesktop.org:drm/msm into drm-next
Updates for v6.14 MDSS: - properly described UBWC registers - added SM6150 (aka QCS615) support MDP4: - several small fixes DPU: - added SM6150 (aka QCS615) support - enabled wide planes if virtual planes are enabled (by using two SSPPs for a single plane) - fixed modes filtering for platforms w/o 3DMux - fixed DSPP DSPP_2 / _3 links on several platforms - corrected DSPP definitions on SDM670 - added CWB hardware blocks support - added VBIF to DPU snapshots - dropped struct dpu_rm_requirements DP: - reworked DP audio support DSI: - added SM6150 (aka QCS615) support GPU: - Print GMU core fw version - GMU bandwidth voting for a740 and a750 - Expose uche trap base via uapi - UAPI error reporting Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGsutUu4ff6OpXNXxqf1xaV0rV6oV23VXNRiF0_OEfe72Q@mail.gmail.com
Diffstat (limited to 'drivers/opp/core.c')
-rw-r--r--drivers/opp/core.c82
1 files changed, 65 insertions, 17 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 0311b18319a4..be3291b53719 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -101,11 +101,55 @@ struct opp_table *_find_opp_table(struct device *dev)
* representation in the OPP table and manage the clock configuration themselves
* in an platform specific way.
*/
-static bool assert_single_clk(struct opp_table *opp_table)
+static bool assert_single_clk(struct opp_table *opp_table,
+ unsigned int __always_unused index)
{
return !WARN_ON(opp_table->clk_count > 1);
}
+/*
+ * Returns true if clock table is large enough to contain the clock index.
+ */
+static bool assert_clk_index(struct opp_table *opp_table,
+ unsigned int index)
+{
+ return opp_table->clk_count > index;
+}
+
+/*
+ * Returns true if bandwidth table is large enough to contain the bandwidth index.
+ */
+static bool assert_bandwidth_index(struct opp_table *opp_table,
+ unsigned int index)
+{
+ return opp_table->path_count > index;
+}
+
+/**
+ * dev_pm_opp_get_bw() - Gets the bandwidth corresponding to an opp
+ * @opp: opp for which bandwidth has to be returned for
+ * @peak: select peak or average bandwidth
+ * @index: bandwidth index
+ *
+ * Return: bandwidth in kBps, else return 0
+ */
+unsigned long dev_pm_opp_get_bw(struct dev_pm_opp *opp, bool peak, int index)
+{
+ if (IS_ERR_OR_NULL(opp)) {
+ pr_err("%s: Invalid parameters\n", __func__);
+ return 0;
+ }
+
+ if (index >= opp->opp_table->path_count)
+ return 0;
+
+ if (!opp->bandwidth)
+ return 0;
+
+ return peak ? opp->bandwidth[index].peak : opp->bandwidth[index].avg;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_bw);
+
/**
* dev_pm_opp_get_voltage() - Gets the voltage corresponding to an opp
* @opp: opp for which voltage has to be returned for
@@ -499,12 +543,12 @@ static struct dev_pm_opp *_opp_table_find_key(struct opp_table *opp_table,
unsigned long (*read)(struct dev_pm_opp *opp, int index),
bool (*compare)(struct dev_pm_opp **opp, struct dev_pm_opp *temp_opp,
unsigned long opp_key, unsigned long key),
- bool (*assert)(struct opp_table *opp_table))
+ bool (*assert)(struct opp_table *opp_table, unsigned int index))
{
struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
/* Assert that the requirement is met */
- if (assert && !assert(opp_table))
+ if (assert && !assert(opp_table, index))
return ERR_PTR(-EINVAL);
mutex_lock(&opp_table->lock);
@@ -532,7 +576,7 @@ _find_key(struct device *dev, unsigned long *key, int index, bool available,
unsigned long (*read)(struct dev_pm_opp *opp, int index),
bool (*compare)(struct dev_pm_opp **opp, struct dev_pm_opp *temp_opp,
unsigned long opp_key, unsigned long key),
- bool (*assert)(struct opp_table *opp_table))
+ bool (*assert)(struct opp_table *opp_table, unsigned int index))
{
struct opp_table *opp_table;
struct dev_pm_opp *opp;
@@ -555,7 +599,7 @@ _find_key(struct device *dev, unsigned long *key, int index, bool available,
static struct dev_pm_opp *_find_key_exact(struct device *dev,
unsigned long key, int index, bool available,
unsigned long (*read)(struct dev_pm_opp *opp, int index),
- bool (*assert)(struct opp_table *opp_table))
+ bool (*assert)(struct opp_table *opp_table, unsigned int index))
{
/*
* The value of key will be updated here, but will be ignored as the
@@ -568,7 +612,7 @@ static struct dev_pm_opp *_find_key_exact(struct device *dev,
static struct dev_pm_opp *_opp_table_find_key_ceil(struct opp_table *opp_table,
unsigned long *key, int index, bool available,
unsigned long (*read)(struct dev_pm_opp *opp, int index),
- bool (*assert)(struct opp_table *opp_table))
+ bool (*assert)(struct opp_table *opp_table, unsigned int index))
{
return _opp_table_find_key(opp_table, key, index, available, read,
_compare_ceil, assert);
@@ -577,7 +621,7 @@ static struct dev_pm_opp *_opp_table_find_key_ceil(struct opp_table *opp_table,
static struct dev_pm_opp *_find_key_ceil(struct device *dev, unsigned long *key,
int index, bool available,
unsigned long (*read)(struct dev_pm_opp *opp, int index),
- bool (*assert)(struct opp_table *opp_table))
+ bool (*assert)(struct opp_table *opp_table, unsigned int index))
{
return _find_key(dev, key, index, available, read, _compare_ceil,
assert);
@@ -586,7 +630,7 @@ static struct dev_pm_opp *_find_key_ceil(struct device *dev, unsigned long *key,
static struct dev_pm_opp *_find_key_floor(struct device *dev,
unsigned long *key, int index, bool available,
unsigned long (*read)(struct dev_pm_opp *opp, int index),
- bool (*assert)(struct opp_table *opp_table))
+ bool (*assert)(struct opp_table *opp_table, unsigned int index))
{
return _find_key(dev, key, index, available, read, _compare_floor,
assert);
@@ -647,7 +691,8 @@ struct dev_pm_opp *
dev_pm_opp_find_freq_exact_indexed(struct device *dev, unsigned long freq,
u32 index, bool available)
{
- return _find_key_exact(dev, freq, index, available, _read_freq, NULL);
+ return _find_key_exact(dev, freq, index, available, _read_freq,
+ assert_clk_index);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact_indexed);
@@ -707,7 +752,8 @@ struct dev_pm_opp *
dev_pm_opp_find_freq_ceil_indexed(struct device *dev, unsigned long *freq,
u32 index)
{
- return _find_key_ceil(dev, freq, index, true, _read_freq, NULL);
+ return _find_key_ceil(dev, freq, index, true, _read_freq,
+ assert_clk_index);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil_indexed);
@@ -760,7 +806,7 @@ struct dev_pm_opp *
dev_pm_opp_find_freq_floor_indexed(struct device *dev, unsigned long *freq,
u32 index)
{
- return _find_key_floor(dev, freq, index, true, _read_freq, NULL);
+ return _find_key_floor(dev, freq, index, true, _read_freq, assert_clk_index);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor_indexed);
@@ -878,7 +924,8 @@ struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, unsigned int *bw,
unsigned long temp = *bw;
struct dev_pm_opp *opp;
- opp = _find_key_ceil(dev, &temp, index, true, _read_bw, NULL);
+ opp = _find_key_ceil(dev, &temp, index, true, _read_bw,
+ assert_bandwidth_index);
*bw = temp;
return opp;
}
@@ -909,7 +956,8 @@ struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
unsigned long temp = *bw;
struct dev_pm_opp *opp;
- opp = _find_key_floor(dev, &temp, index, true, _read_bw, NULL);
+ opp = _find_key_floor(dev, &temp, index, true, _read_bw,
+ assert_bandwidth_index);
*bw = temp;
return opp;
}
@@ -1702,7 +1750,7 @@ void dev_pm_opp_remove(struct device *dev, unsigned long freq)
if (IS_ERR(opp_table))
return;
- if (!assert_single_clk(opp_table))
+ if (!assert_single_clk(opp_table, 0))
goto put_table;
mutex_lock(&opp_table->lock);
@@ -2054,7 +2102,7 @@ int _opp_add_v1(struct opp_table *opp_table, struct device *dev,
unsigned long tol, u_volt = data->u_volt;
int ret;
- if (!assert_single_clk(opp_table))
+ if (!assert_single_clk(opp_table, 0))
return -EINVAL;
new_opp = _opp_allocate(opp_table);
@@ -2810,7 +2858,7 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
return r;
}
- if (!assert_single_clk(opp_table)) {
+ if (!assert_single_clk(opp_table, 0)) {
r = -EINVAL;
goto put_table;
}
@@ -2886,7 +2934,7 @@ int dev_pm_opp_adjust_voltage(struct device *dev, unsigned long freq,
return r;
}
- if (!assert_single_clk(opp_table)) {
+ if (!assert_single_clk(opp_table, 0)) {
r = -EINVAL;
goto put_table;
}