From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Sun, 18 May 2014 05:04:16 +0000 (-0400)
Subject: drm/nouveau/clk: allow end-user reclocking for nv40, nvaa, and nve0 clock types
X-Git-Tag: firefly_0821_release~176^2~3773^2~2^2~9
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ed05ba72c841d330cef111282d76a5c7881940f5;p=firefly-linux-kernel-4.4.55.git
drm/nouveau/clk: allow end-user reclocking for nv40, nvaa, and nve0 clock types
Use with caution.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
index 8f4ced75444a..c01e29c9f89a 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
@@ -77,6 +77,8 @@ struct nouveau_clock {
int tstate; /* thermal adjustment (max-) */
int dstate; /* display adjustment (min+) */
+ bool allow_reclock;
+
int (*read)(struct nouveau_clock *, enum nv_clk_src);
int (*calc)(struct nouveau_clock *, struct nouveau_cstate *);
int (*prog)(struct nouveau_clock *);
@@ -106,8 +108,8 @@ struct nouveau_clocks {
int mdiv;
};
-#define nouveau_clock_create(p,e,o,i,d) \
- nouveau_clock_create_((p), (e), (o), (i), sizeof(**d), (void **)d)
+#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_destroy(p) ({ \
struct nouveau_clock *clk = (p); \
_nouveau_clock_dtor(nv_object(clk)); \
@@ -121,7 +123,7 @@ struct nouveau_clocks {
int nouveau_clock_create_(struct nouveau_object *, struct nouveau_object *,
struct nouveau_oclass *,
- struct nouveau_clocks *, int, void **);
+ struct nouveau_clocks *, bool, int, void **);
void _nouveau_clock_dtor(struct nouveau_object *);
int _nouveau_clock_init(struct nouveau_object *);
#define _nouveau_clock_fini _nouveau_subdev_fini
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
index dd62baead39c..22351f594d2a 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
@@ -346,8 +346,8 @@ nouveau_clock_ustate_update(struct nouveau_clock *clk, int req)
struct nouveau_pstate *pstate;
int i = 0;
- /* YKW repellant */
- return -ENOSYS;
+ if (!clk->allow_reclock)
+ return -ENOSYS;
if (req != -1 && req != -2) {
list_for_each_entry(pstate, &clk->states, head) {
@@ -456,6 +456,7 @@ nouveau_clock_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
struct nouveau_clocks *clocks,
+ bool allow_reclock,
int length, void **object)
{
struct nouveau_device *device = nv_device(parent);
@@ -478,6 +479,8 @@ nouveau_clock_create_(struct nouveau_object *parent,
ret = nouveau_pstate_new(clk, idx++);
} while (ret == 0);
+ clk->allow_reclock = allow_reclock;
+
mode = nouveau_stropt(device->cfgopt, "NvClkMode", &arglen);
if (mode) {
if (!strncasecmpz(mode, "disabled", arglen)) {
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c
index b74db6cfc4e2..eb2d4425a49e 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c
@@ -82,7 +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, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nv04_domain, 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 db7346f79080..8a9e16839791 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c
@@ -213,7 +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, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nv40_domain, 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 250a6d96016b..8c132772ba9e 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,
- &priv);
+ 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 4f5a1373f002..9fb58354a80b 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
@@ -302,7 +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, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nva3_domain, 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 7a723b4f564d..6a65fc9e9663 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c
@@ -421,7 +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, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nvaa_domains, 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 c3105720ed24..dbf8517f54da 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
@@ -437,7 +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, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nvc0_domain, 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 d3c37c96f0e7..4ac1aa30ea11 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
@@ -473,7 +473,8 @@ 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, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nve0_domain, true,
+ &priv);
*pobject = nv_object(priv);
if (ret)
return ret;