diff options
Diffstat (limited to 'nvkm/engine/disp/nvd0.c')
| -rw-r--r-- | nvkm/engine/disp/nvd0.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/nvkm/engine/disp/nvd0.c b/nvkm/engine/disp/nvd0.c index a571c4fd6..747e64bb9 100644 --- a/nvkm/engine/disp/nvd0.c +++ b/nvkm/engine/disp/nvd0.c @@ -976,6 +976,9 @@ nvd0_disp_intr_unk2_2_tu(struct nv50_disp_priv *priv, int head, const int or = ffs(outp->or) - 1; const u32 ctrl = nv_rd32(priv, 0x660200 + (or * 0x020)); const u32 conf = nv_rd32(priv, 0x660404 + (head * 0x300)); + const s32 vactive = nv_rd32(priv, 0x660414 + (head * 0x300)) & 0xffff; + const s32 vblanke = nv_rd32(priv, 0x66041c + (head * 0x300)) & 0xffff; + const s32 vblanks = nv_rd32(priv, 0x660420 + (head * 0x300)) & 0xffff; const u32 pclk = nv_rd32(priv, 0x660450 + (head * 0x300)) / 1000; const u32 link = ((ctrl & 0xf00) == 0x800) ? 0 : 1; const u32 hoff = (head * 0x800); @@ -983,23 +986,35 @@ nvd0_disp_intr_unk2_2_tu(struct nv50_disp_priv *priv, int head, const u32 loff = (link * 0x080) + soff; const u32 symbol = 100000; const u32 TU = 64; - u32 dpctrl = nv_rd32(priv, 0x61c10c + loff) & 0x000f0000; + u32 dpctrl = nv_rd32(priv, 0x61c10c + loff); u32 clksor = nv_rd32(priv, 0x612300 + soff); u32 datarate, link_nr, link_bw, bits; u64 ratio, value; + link_nr = hweight32(dpctrl & 0x000f0000); + link_bw = (clksor & 0x007c0000) >> 18; + link_bw *= 27000; + + /* symbols/hblank - algorithm taken from comments in tegra driver */ + value = vblanke + vactive - vblanks - 7; + value = value * link_bw; + do_div(value, pclk); + value = value - (3 * !!(dpctrl & 0x00004000)) - (12 / link_nr); + nv_mask(priv, 0x616620 + hoff, 0x0000ffff, value); + + /* symbols/vblank - algorithm taken from comments in tegra driver */ + value = vblanks - vblanke - 25; + value = value * link_bw; + do_div(value, pclk); + value = value - ((36 / link_nr) + 3) - 1; + nv_mask(priv, 0x616624 + hoff, 0x00ffffff, value); + + /* watermark */ if ((conf & 0x3c0) == 0x180) bits = 30; else if ((conf & 0x3c0) == 0x140) bits = 24; else bits = 18; datarate = (pclk * bits) / 8; - if (dpctrl > 0x00030000) link_nr = 4; - else if (dpctrl > 0x00010000) link_nr = 2; - else link_nr = 1; - - link_bw = (clksor & 0x007c0000) >> 18; - link_bw *= 27000; - ratio = datarate; ratio *= symbol; do_div(ratio, link_nr * link_bw); |