drm/nouveau: add missing pll_calc calls

Fixes a null pointer dereference when reclocking on my fermi.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
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 39e73b9..41b7a6a 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
@@ -54,6 +54,7 @@ int nv04_clock_pll_calc(struct nouveau_clock *, struct nvbios_pll *,
                        int clk, struct nouveau_pll_vals *);
 int nv04_clock_pll_prog(struct nouveau_clock *, u32 reg1,
                        struct nouveau_pll_vals *);
-
+int nva3_clock_pll_calc(struct nouveau_clock *, struct nvbios_pll *,
+                       int clk, struct nouveau_pll_vals *);
 
 #endif

diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
index cc8d7d1..9068c98 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
@@ -66,6 +66,24 @@ nva3_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq)
        return ret;
 }
 
+int
+nva3_clock_pll_calc(struct nouveau_clock *clock, struct nvbios_pll *info,
+                   int clk, struct nouveau_pll_vals *pv)
+{
+       int ret, N, M, P;
+
+       ret = nva3_pll_calc(clock, info, clk, &N, NULL, &M, &P);
+
+       if (ret > 0) {
+               pv->refclk = info->refclk;
+               pv->N1 = N;
+               pv->M1 = M;
+               pv->log2P = P;
+       }
+       return ret;
+}
+
+
 static int
 nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
                struct nouveau_oclass *oclass, void *data, u32 size,
@@ -80,6 +98,7 @@ nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
                return ret;
 
        priv->base.pll_set = nva3_clock_pll_set;
+       priv->base.pll_calc = nva3_clock_pll_calc;
        return 0;
 }
 

diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
index 5ccce0b..f6962c9 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
@@ -79,6 +79,7 @@ nvc0_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
                return ret;
 
        priv->base.pll_set = nvc0_clock_pll_set;
+       priv->base.pll_calc = nva3_clock_pll_calc;
        return 0;
 }