diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/clk/gf100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/clk/gf100.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gf100.c index 78c449b417b7..89d5543118cf 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gf100.c @@ -99,7 +99,7 @@ read_div(struct gf100_clk *clk, int doff, u32 dsrc, u32 dctl) { struct nvkm_device *device = clk->base.subdev.device; u32 ssrc = nvkm_rd32(device, dsrc + (doff * 4)); - u32 sctl = nvkm_rd32(device, dctl + (doff * 4)); + u32 sclk, sctl, sdiv = 2; switch (ssrc & 0x00000003) { case 0: @@ -109,13 +109,21 @@ read_div(struct gf100_clk *clk, int doff, u32 dsrc, u32 dctl) case 2: return 100000; case 3: - if (sctl & 0x80000000) { - u32 sclk = read_vco(clk, dsrc + (doff * 4)); - u32 sdiv = (sctl & 0x0000003f) + 2; - return (sclk * 2) / sdiv; + sclk = read_vco(clk, dsrc + (doff * 4)); + + /* Memclk has doff of 0 despite its alt. location */ + if (doff <= 2) { + sctl = nvkm_rd32(device, dctl + (doff * 4)); + + if (sctl & 0x80000000) { + if (ssrc & 0x100) + sctl >>= 8; + + sdiv = (sctl & 0x3f) + 2; + } } - return read_vco(clk, dsrc + (doff * 4)); + return (sclk * 2) / sdiv; default: return 0; } @@ -366,11 +374,17 @@ gf100_clk_prog_2(struct gf100_clk *clk, int idx) if (info->coef) { nvkm_wr32(device, addr + 0x04, info->coef); nvkm_mask(device, addr + 0x00, 0x00000001, 0x00000001); + + /* Test PLL lock */ + nvkm_mask(device, addr + 0x00, 0x00000010, 0x00000000); nvkm_msec(device, 2000, if (nvkm_rd32(device, addr + 0x00) & 0x00020000) break; ); - nvkm_mask(device, addr + 0x00, 0x00020004, 0x00000004); + nvkm_mask(device, addr + 0x00, 0x00000010, 0x00000010); + + /* Enable sync mode */ + nvkm_mask(device, addr + 0x00, 0x00000004, 0x00000004); } } } |