drm/nvc0: implement crtc pll setting

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 274e9b6..e0997d6 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -4828,7 +4828,7 @@ int get_pll_limits(struct drm_device *dev, uint32_t limit_match, struct pll_lims
                pll_lim->min_p = record[12];
                pll_lim->max_p = record[13];
                /* where did this go to?? */
-               if (limit_match == 0x00614100 || limit_match == 0x00614900)
+               if ((entry[0] & 0xf0) == 0x80)
                        pll_lim->refclk = 27000;
                else
                        pll_lim->refclk = 100000;

diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index 5d11ea1..a438e56 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -264,11 +264,16 @@ nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, int scaling_mode, bool update)
 int
 nv50_crtc_set_clock(struct drm_device *dev, int head, int pclk)
 {
-       uint32_t reg = NV50_PDISPLAY_CRTC_CLK_CTRL1(head);
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct pll_lims pll;
-       uint32_t reg1, reg2;
+       uint32_t reg, reg1, reg2;
        int ret, N1, M1, N2, M2, P;
 
+       if (dev_priv->chipset < NV_C0)
+               reg = NV50_PDISPLAY_CRTC_CLK_CTRL1(head);
+       else
+               reg = 0x614140 + (head * 0x800);
+
        ret = get_pll_limits(dev, reg, &pll);
        if (ret)
                return ret;
@@ -286,7 +291,8 @@ nv50_crtc_set_clock(struct drm_device *dev, int head, int pclk)
                nv_wr32(dev, reg, 0x10000611);
                nv_wr32(dev, reg + 4, reg1 | (M1 << 16) | N1);
                nv_wr32(dev, reg + 8, reg2 | (P << 28) | (M2 << 16) | N2);
-       } else {
+       } else
+       if (dev_priv->chipset < NV_C0) {
                ret = nv50_calc_pll2(dev, &pll, pclk, &N1, &N2, &M1, &P);
                if (ret <= 0)
                        return 0;
@@ -298,6 +304,17 @@ nv50_crtc_set_clock(struct drm_device *dev, int head, int pclk)
                nv_wr32(dev, reg, 0x50000610);
                nv_wr32(dev, reg + 4, reg1 | (P << 16) | (M1 << 8) | N1);
                nv_wr32(dev, reg + 8, N2);
+       } else {
+               ret = nv50_calc_pll2(dev, &pll, pclk, &N1, &N2, &M1, &P);
+               if (ret <= 0)
+                       return 0;
+
+               NV_DEBUG(dev, "pclk %d out %d N %d fN 0x%04x M %d P %d\n",
+                        pclk, ret, N1, N2, M1, P);
+
+               nv_mask(dev, reg + 0x0c, 0x00000000, 0x00000100);
+               nv_wr32(dev, reg + 0x04, (P << 16) | (N1 << 8) | M1);
+               nv_wr32(dev, reg + 0x10, N2 << 16);
        }
 
        return 0;