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path: root/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
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-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/clock/base.c197
1 files changed, 147 insertions, 50 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
index 22351f594d2a..a276a711294a 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
@@ -90,16 +90,20 @@ nouveau_cstate_prog(struct nouveau_clock *clk,
cstate = &pstate->base;
}
- ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, +1);
- if (ret && ret != -ENODEV) {
- nv_error(clk, "failed to raise fan speed: %d\n", ret);
- return ret;
+ if (ptherm) {
+ ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, +1);
+ if (ret && ret != -ENODEV) {
+ nv_error(clk, "failed to raise fan speed: %d\n", ret);
+ return ret;
+ }
}
- ret = volt->set_id(volt, cstate->voltage, +1);
- if (ret && ret != -ENODEV) {
- nv_error(clk, "failed to raise voltage: %d\n", ret);
- return ret;
+ if (volt) {
+ ret = volt->set_id(volt, cstate->voltage, +1);
+ if (ret && ret != -ENODEV) {
+ nv_error(clk, "failed to raise voltage: %d\n", ret);
+ return ret;
+ }
}
ret = clk->calc(clk, cstate);
@@ -108,13 +112,17 @@ nouveau_cstate_prog(struct nouveau_clock *clk,
clk->tidy(clk);
}
- ret = volt->set_id(volt, cstate->voltage, -1);
- if (ret && ret != -ENODEV)
- nv_error(clk, "failed to lower voltage: %d\n", ret);
+ if (volt) {
+ ret = volt->set_id(volt, cstate->voltage, -1);
+ if (ret && ret != -ENODEV)
+ nv_error(clk, "failed to lower voltage: %d\n", ret);
+ }
- ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, -1);
- if (ret && ret != -ENODEV)
- nv_error(clk, "failed to lower fan speed: %d\n", ret);
+ if (ptherm) {
+ ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, -1);
+ if (ret && ret != -ENODEV)
+ nv_error(clk, "failed to lower fan speed: %d\n", ret);
+ }
return 0;
}
@@ -194,16 +202,23 @@ nouveau_pstate_prog(struct nouveau_clock *clk, int pstatei)
return nouveau_cstate_prog(clk, pstate, 0);
}
-static int
-nouveau_pstate_calc(struct nouveau_clock *clk)
+static void
+nouveau_pstate_work(struct work_struct *work)
{
- int pstate, ret = 0;
+ struct nouveau_clock *clk = container_of(work, typeof(*clk), work);
+ int pstate;
- nv_trace(clk, "P %d U %d A %d T %d D %d\n", clk->pstate,
- clk->ustate, clk->astate, clk->tstate, clk->dstate);
+ if (!atomic_xchg(&clk->waiting, 0))
+ return;
+ clk->pwrsrc = power_supply_is_system_supplied();
- if (clk->state_nr && clk->ustate != -1) {
- pstate = (clk->ustate < 0) ? clk->astate : clk->ustate;
+ nv_trace(clk, "P %d PWR %d U(AC) %d U(DC) %d A %d T %d D %d\n",
+ clk->pstate, clk->pwrsrc, clk->ustate_ac, clk->ustate_dc,
+ clk->astate, clk->tstate, clk->dstate);
+
+ pstate = clk->pwrsrc ? clk->ustate_ac : clk->ustate_dc;
+ if (clk->state_nr && pstate != -1) {
+ pstate = (pstate < 0) ? clk->astate : pstate;
pstate = min(pstate, clk->state_nr - 1 - clk->tstate);
pstate = max(pstate, clk->dstate);
} else {
@@ -211,9 +226,26 @@ nouveau_pstate_calc(struct nouveau_clock *clk)
}
nv_trace(clk, "-> %d\n", pstate);
- if (pstate != clk->pstate)
- ret = nouveau_pstate_prog(clk, pstate);
- return ret;
+ if (pstate != clk->pstate) {
+ int ret = nouveau_pstate_prog(clk, pstate);
+ if (ret) {
+ nv_error(clk, "error setting pstate %d: %d\n",
+ pstate, ret);
+ }
+ }
+
+ wake_up_all(&clk->wait);
+ nvkm_notify_get(&clk->pwrsrc_ntfy);
+}
+
+static int
+nouveau_pstate_calc(struct nouveau_clock *clk, bool wait)
+{
+ atomic_set(&clk->waiting, 1);
+ schedule_work(&clk->work);
+ if (wait)
+ wait_event(clk->wait, !atomic_read(&clk->waiting));
+ return 0;
}
static void
@@ -361,17 +393,40 @@ nouveau_clock_ustate_update(struct nouveau_clock *clk, int req)
req = i;
}
- clk->ustate = req;
- return 0;
+ return req + 2;
+}
+
+static int
+nouveau_clock_nstate(struct nouveau_clock *clk, const char *mode, int arglen)
+{
+ int ret = 1;
+
+ if (strncasecmpz(mode, "disabled", arglen)) {
+ char save = mode[arglen];
+ long v;
+
+ ((char *)mode)[arglen] = '\0';
+ if (!kstrtol(mode, 0, &v)) {
+ ret = nouveau_clock_ustate_update(clk, v);
+ if (ret < 0)
+ ret = 1;
+ }
+ ((char *)mode)[arglen] = save;
+ }
+
+ return ret - 2;
}
int
-nouveau_clock_ustate(struct nouveau_clock *clk, int req)
+nouveau_clock_ustate(struct nouveau_clock *clk, int req, int pwr)
{
int ret = nouveau_clock_ustate_update(clk, req);
- if (ret)
- return ret;
- return nouveau_pstate_calc(clk);
+ if (ret >= 0) {
+ if (ret -= 2, pwr) clk->ustate_ac = ret;
+ else clk->ustate_dc = ret;
+ return nouveau_pstate_calc(clk, true);
+ }
+ return ret;
}
int
@@ -381,7 +436,7 @@ nouveau_clock_astate(struct nouveau_clock *clk, int req, int rel)
if ( rel) clk->astate += rel;
clk->astate = min(clk->astate, clk->state_nr - 1);
clk->astate = max(clk->astate, 0);
- return nouveau_pstate_calc(clk);
+ return nouveau_pstate_calc(clk, true);
}
int
@@ -391,7 +446,7 @@ nouveau_clock_tstate(struct nouveau_clock *clk, int req, int rel)
if ( rel) clk->tstate += rel;
clk->tstate = min(clk->tstate, 0);
clk->tstate = max(clk->tstate, -(clk->state_nr - 1));
- return nouveau_pstate_calc(clk);
+ return nouveau_pstate_calc(clk, true);
}
int
@@ -401,12 +456,30 @@ nouveau_clock_dstate(struct nouveau_clock *clk, int req, int rel)
if ( rel) clk->dstate += rel;
clk->dstate = min(clk->dstate, clk->state_nr - 1);
clk->dstate = max(clk->dstate, 0);
- return nouveau_pstate_calc(clk);
+ return nouveau_pstate_calc(clk, true);
+}
+
+static int
+nouveau_clock_pwrsrc(struct nvkm_notify *notify)
+{
+ struct nouveau_clock *clk =
+ container_of(notify, typeof(*clk), pwrsrc_ntfy);
+ nouveau_pstate_calc(clk, false);
+ return NVKM_NOTIFY_DROP;
}
/******************************************************************************
* subdev base class implementation
*****************************************************************************/
+
+int
+_nouveau_clock_fini(struct nouveau_object *object, bool suspend)
+{
+ struct nouveau_clock *clk = (void *)object;
+ nvkm_notify_put(&clk->pwrsrc_ntfy);
+ return nouveau_subdev_fini(&clk->base, suspend);
+}
+
int
_nouveau_clock_init(struct nouveau_object *object)
{
@@ -414,6 +487,10 @@ _nouveau_clock_init(struct nouveau_object *object)
struct nouveau_clocks *clock = clk->domains;
int ret;
+ ret = nouveau_subdev_init(&clk->base);
+ if (ret)
+ return ret;
+
memset(&clk->bstate, 0x00, sizeof(clk->bstate));
INIT_LIST_HEAD(&clk->bstate.list);
clk->bstate.pstate = 0xff;
@@ -434,7 +511,7 @@ _nouveau_clock_init(struct nouveau_object *object)
clk->tstate = 0;
clk->dstate = 0;
clk->pstate = -1;
- nouveau_pstate_calc(clk);
+ nouveau_pstate_calc(clk, true);
return 0;
}
@@ -444,6 +521,8 @@ _nouveau_clock_dtor(struct nouveau_object *object)
struct nouveau_clock *clk = (void *)object;
struct nouveau_pstate *pstate, *temp;
+ nvkm_notify_fini(&clk->pwrsrc_ntfy);
+
list_for_each_entry_safe(pstate, temp, &clk->states, head) {
nouveau_pstate_del(pstate);
}
@@ -456,6 +535,7 @@ nouveau_clock_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
struct nouveau_clocks *clocks,
+ struct nouveau_pstate *pstates, int nb_pstates,
bool allow_reclock,
int length, void **object)
{
@@ -472,29 +552,46 @@ nouveau_clock_create_(struct nouveau_object *parent,
INIT_LIST_HEAD(&clk->states);
clk->domains = clocks;
- clk->ustate = -1;
+ clk->ustate_ac = -1;
+ clk->ustate_dc = -1;
+
+ INIT_WORK(&clk->work, nouveau_pstate_work);
+ init_waitqueue_head(&clk->wait);
+ atomic_set(&clk->waiting, 0);
- idx = 0;
- do {
- ret = nouveau_pstate_new(clk, idx++);
- } while (ret == 0);
+ /* If no pstates are provided, try and fetch them from the BIOS */
+ if (!pstates) {
+ idx = 0;
+ do {
+ ret = nouveau_pstate_new(clk, idx++);
+ } while (ret == 0);
+ } else {
+ for (idx = 0; idx < nb_pstates; idx++)
+ list_add_tail(&pstates[idx].head, &clk->states);
+ clk->state_nr = nb_pstates;
+ }
clk->allow_reclock = allow_reclock;
+ ret = nvkm_notify_init(&device->event, nouveau_clock_pwrsrc, true,
+ NULL, 0, 0, &clk->pwrsrc_ntfy);
+ if (ret)
+ return ret;
+
mode = nouveau_stropt(device->cfgopt, "NvClkMode", &arglen);
if (mode) {
- if (!strncasecmpz(mode, "disabled", arglen)) {
- clk->ustate = -1;
- } else {
- char save = mode[arglen];
- long v;
-
- ((char *)mode)[arglen] = '\0';
- if (!kstrtol(mode, 0, &v))
- nouveau_clock_ustate_update(clk, v);
- ((char *)mode)[arglen] = save;
- }
+ clk->ustate_ac = nouveau_clock_nstate(clk, mode, arglen);
+ clk->ustate_dc = nouveau_clock_nstate(clk, mode, arglen);
}
+ mode = nouveau_stropt(device->cfgopt, "NvClkModeAC", &arglen);
+ if (mode)
+ clk->ustate_ac = nouveau_clock_nstate(clk, mode, arglen);
+
+ mode = nouveau_stropt(device->cfgopt, "NvClkModeDC", &arglen);
+ if (mode)
+ clk->ustate_dc = nouveau_clock_nstate(clk, mode, arglen);
+
+
return 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.