Later we will have situations where the expected and the current state
isn't the same.
Signed-off-by: Karol Herbst <karolher...@gmail.com>
Reviewed-by: Martin Peres <martin.pe...@free.fr>
---
drm/nouveau/include/nvkm/subdev/clk.h | 2 ++
drm/nouveau/nvkm/subdev/clk/base.c | 32 +++++++++++++++++++++++++-------
2 files changed, 27 insertions(+), 7 deletions(-)
diff --git a/drm/nouveau/include/nvkm/subdev/clk.h
b/drm/nouveau/include/nvkm/subdev/clk.h
index 37263b7f..0e0af704 100644
--- a/drm/nouveau/include/nvkm/subdev/clk.h
+++ b/drm/nouveau/include/nvkm/subdev/clk.h
@@ -101,6 +101,8 @@ struct nvkm_clk {
int ustate_ac; /* user-requested (-1 disabled, -2 perfmon) */
int ustate_dc; /* user-requested (-1 disabled, -2 perfmon) */
int astate; /* perfmon adjustment (base) */
+ struct nvkm_cstate *cstate;
+ int exp_cstateid;
u8 temp;
bool allow_reclock;
diff --git a/drm/nouveau/nvkm/subdev/clk/base.c
b/drm/nouveau/nvkm/subdev/clk/base.c
index 0d4d9fdf..d37c13b7 100644
--- a/drm/nouveau/nvkm/subdev/clk/base.c
+++ b/drm/nouveau/nvkm/subdev/clk/base.c
@@ -146,9 +146,14 @@ static struct nvkm_cstate *
nvkm_cstate_get(struct nvkm_clk *clk, struct nvkm_pstate *pstate, int cstatei)
{
struct nvkm_cstate *cstate;
- if (cstatei == NVKM_CLK_CSTATE_HIGHEST)
+ switch (cstatei) {
+ case NVKM_CLK_CSTATE_HIGHEST:
return list_last_entry(&pstate->list, typeof(*cstate), head);
- else {
+ case NVKM_CLK_CSTATE_BASE:
+ return &pstate->base;
+ case NVKM_CLK_CSTATE_DEFAULT:
+ return NULL;
+ default:
list_for_each_entry(cstate, &pstate->list, head) {
if (cstate->id == cstatei)
return cstate;
@@ -167,6 +172,9 @@ nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate
*pstate, int cstatei)
struct nvkm_cstate *cstate;
int ret;
+ if (cstatei == NVKM_CLK_CSTATE_DEFAULT)
+ return 0;
+
if (!list_empty(&pstate->list)) {
cstate = nvkm_cstate_get(clk, pstate, cstatei);
cstate = nvkm_cstate_find_best(clk, pstate, cstate);
@@ -193,6 +201,7 @@ nvkm_cstate_prog(struct nvkm_clk *clk, struct nvkm_pstate
*pstate, int cstatei)
ret = clk->func->calc(clk, cstate);
if (ret == 0) {
+ clk->cstate = cstate;
ret = clk->func->prog(clk);
clk->func->tidy(clk);
}
@@ -295,7 +304,7 @@ nvkm_pstate_prog(struct nvkm_clk *clk, int pstatei)
ram->func->tidy(ram);
}
- return nvkm_cstate_prog(clk, pstate, NVKM_CLK_CSTATE_HIGHEST);
+ return nvkm_cstate_prog(clk, pstate, clk->exp_cstateid);
}
static void
@@ -313,9 +322,9 @@ nvkm_clk_update_work(struct work_struct *work)
pstate = clk->pstate->pstate;
else
pstate = NVKM_CLK_PSTATE_DEFAULT;
- nvkm_trace(subdev, "P %d PWR %d U(AC) %d U(DC) %d A %d T %d°C\n",
+ nvkm_trace(subdev, "P %d PWR %d U(AC) %d U(DC) %d A %d C %d T %d°C\n",
pstate, clk->pwrsrc, clk->ustate_ac, clk->ustate_dc,
- clk->astate, clk->temp);
+ clk->astate, clk->exp_cstateid, clk->temp);
pstate = clk->pwrsrc ? clk->ustate_ac : clk->ustate_dc;
if (clk->state_nr && pstate != -1) {
@@ -536,6 +545,7 @@ nvkm_clk_ustate(struct nvkm_clk *clk, int req, int pwr)
if (ret >= 0) {
if (ret -= 2, pwr) clk->ustate_ac = ret;
else clk->ustate_dc = ret;
+ clk->exp_cstateid = NVKM_CLK_CSTATE_HIGHEST;
return nvkm_clk_update(clk, true);
}
return ret;
@@ -548,6 +558,7 @@ nvkm_clk_astate(struct nvkm_clk *clk, int req, int rel,
bool wait)
if ( rel) clk->astate += rel;
clk->astate = min(clk->astate, clk->state_nr - 1);
clk->astate = max(clk->astate, 0);
+ clk->exp_cstateid = NVKM_CLK_CSTATE_BASE;
return nvkm_clk_update(clk, wait);
}
@@ -618,6 +629,8 @@ nvkm_clk_init(struct nvkm_subdev *subdev)
clk->astate = clk->state_nr - 1;
clk->pstate = NULL;
+ clk->exp_cstateid = NVKM_CLK_CSTATE_DEFAULT;
+ clk->cstate = NULL;
clk->temp = 90; /* reasonable default value */
nvkm_clk_update(clk, true);
return 0;
@@ -701,15 +714,20 @@ nvkm_clk_ctor(const struct nvkm_clk_func *func, struct
nvkm_device *device,
if (mode) {
clk->ustate_ac = nvkm_clk_nstate(clk, mode, arglen);
clk->ustate_dc = nvkm_clk_nstate(clk, mode, arglen);
+ clk->exp_cstateid = NVKM_CLK_CSTATE_HIGHEST;
}
mode = nvkm_stropt(device->cfgopt, "NvClkModeAC", &arglen);
- if (mode)
+ if (mode) {
clk->ustate_ac = nvkm_clk_nstate(clk, mode, arglen);
+ clk->exp_cstateid = NVKM_CLK_CSTATE_HIGHEST;
+ }
mode = nvkm_stropt(device->cfgopt, "NvClkModeDC", &arglen);
- if (mode)
+ if (mode) {
clk->ustate_dc = nvkm_clk_nstate(clk, mode, arglen);
+ clk->exp_cstateid = NVKM_CLK_CSTATE_HIGHEST;
+ }
clk->boost_mode = nvkm_longopt(device->cfgopt, "NvBoost",
NVKM_CLK_BOOST_NONE);
--
2.12.0
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