From: Alexandre Courbot Date: Sat, 26 Jul 2014 09:41:40 +0000 (+0900) Subject: drm/nouveau/clk: support for non-BIOS pstates X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bb4d29df5e929a356e2cff2a6d7f38442d322d5b;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git drm/nouveau/clk: support for non-BIOS pstates Make nouveau_clock_create() take new two optional arguments: an array of pstates and its size. When these are specified, nouveau_clock_create() will use the provided pstates instead of probing them using the BIOS. This is useful for platforms which do not provide a BIOS, like Tegra. Signed-off-by: Alexandre Courbot Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h index 9f37c096c34d..a7581478e4ea 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h @@ -115,8 +115,9 @@ struct nouveau_clocks { int mdiv; }; -#define nouveau_clock_create(p,e,o,i,r,d) \ - nouveau_clock_create_((p), (e), (o), (i), (r), sizeof(**d), (void **)d) +#define nouveau_clock_create(p,e,o,i,r,s,n,d) \ + nouveau_clock_create_((p), (e), (o), (i), (r), (s), (n), sizeof(**d), \ + (void **)d) #define nouveau_clock_destroy(p) ({ \ struct nouveau_clock *clk = (p); \ _nouveau_clock_dtor(nv_object(clk)); \ @@ -132,7 +133,8 @@ struct nouveau_clocks { int nouveau_clock_create_(struct nouveau_object *, struct nouveau_object *, struct nouveau_oclass *, - struct nouveau_clocks *, bool, int, void **); + struct nouveau_clocks *, struct nouveau_pstate *, + int, bool, int, void **); void _nouveau_clock_dtor(struct nouveau_object *); int _nouveau_clock_init(struct nouveau_object *); int _nouveau_clock_fini(struct nouveau_object *, bool); diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c index 508639d0f088..d3f70d892d54 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c @@ -534,6 +534,7 @@ 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) { @@ -557,10 +558,17 @@ nouveau_clock_create_(struct nouveau_object *parent, 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; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c index eb2d4425a49e..4c48232686be 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c @@ -82,8 +82,8 @@ nv04_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv04_clock_priv *priv; int ret; - ret = nouveau_clock_create(parent, engine, oclass, nv04_domain, false, - &priv); + ret = nouveau_clock_create(parent, engine, oclass, nv04_domain, NULL, 0, + false, &priv); *pobject = nv_object(priv); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c index 8a9e16839791..08368fe97029 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c @@ -213,8 +213,8 @@ nv40_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv40_clock_priv *priv; int ret; - ret = nouveau_clock_create(parent, engine, oclass, nv40_domain, true, - &priv); + ret = nouveau_clock_create(parent, engine, oclass, nv40_domain, NULL, 0, + true, &priv); *pobject = nv_object(priv); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c index 8c132772ba9e..5070ebc260f8 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c @@ -507,7 +507,7 @@ nv50_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, int ret; ret = nouveau_clock_create(parent, engine, oclass, pclass->domains, - false, &priv); + NULL, 0, false, &priv); *pobject = nv_object(priv); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c index 9fb58354a80b..087012b18956 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c @@ -302,8 +302,8 @@ nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nva3_clock_priv *priv; int ret; - ret = nouveau_clock_create(parent, engine, oclass, nva3_domain, false, - &priv); + ret = nouveau_clock_create(parent, engine, oclass, nva3_domain, NULL, 0, + false, &priv); *pobject = nv_object(priv); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c index 6a65fc9e9663..74e19731b1b7 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c @@ -421,8 +421,8 @@ nvaa_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nvaa_clock_priv *priv; int ret; - ret = nouveau_clock_create(parent, engine, oclass, nvaa_domains, true, - &priv); + ret = nouveau_clock_create(parent, engine, oclass, nvaa_domains, NULL, + 0, true, &priv); *pobject = nv_object(priv); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c index dbf8517f54da..1234abaab2db 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c @@ -437,8 +437,8 @@ nvc0_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nvc0_clock_priv *priv; int ret; - ret = nouveau_clock_create(parent, engine, oclass, nvc0_domain, false, - &priv); + ret = nouveau_clock_create(parent, engine, oclass, nvc0_domain, NULL, 0, + false, &priv); *pobject = nv_object(priv); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c index 0e62a3240144..7eccad57512e 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c @@ -475,8 +475,8 @@ nve0_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nve0_clock_priv *priv; int ret; - ret = nouveau_clock_create(parent, engine, oclass, nve0_domain, true, - &priv); + ret = nouveau_clock_create(parent, engine, oclass, nve0_domain, NULL, 0, + true, &priv); *pobject = nv_object(priv); if (ret) return ret;