diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/disp/nv50.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/disp/nv50.c | 426 |
1 files changed, 421 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index 1b1a3845444b..c9cfd02f94ab 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -30,9 +30,15 @@ #include <engine/software.h> #include <engine/disp.h> +#include <subdev/bios.h> +#include <subdev/bios/dcb.h> +#include <subdev/bios/disp.h> +#include <subdev/bios/init.h> +#include <subdev/bios/pll.h> #include <subdev/timer.h> #include <subdev/fb.h> #include <subdev/bar.h> +#include <subdev/clock.h> #include "nv50.h" @@ -730,6 +736,27 @@ nv50_disp_cclass = { ******************************************************************************/ static void +nv50_disp_intr_error(struct nv50_disp_priv *priv) +{ + u32 channels = (nv_rd32(priv, 0x610020) & 0x001f0000) >> 16; + u32 addr, data; + int chid; + + for (chid = 0; chid < 5; chid++) { + if (!(channels & (1 << chid))) + continue; + + nv_wr32(priv, 0x610020, 0x00010000 << chid); + addr = nv_rd32(priv, 0x610080 + (chid * 0x08)); + data = nv_rd32(priv, 0x610084 + (chid * 0x08)); + nv_wr32(priv, 0x610080 + (chid * 0x08), 0x90000000); + + nv_error(priv, "chid %d mthd 0x%04x data 0x%08x 0x%08x\n", + chid, addr & 0xffc, data, addr); + } +} + +static void nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc) { struct nouveau_disp *disp = &priv->base; @@ -766,24 +793,413 @@ nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc) disp->vblank.notify(disp->vblank.data, crtc); } +static u16 +exec_lookup(struct nv50_disp_priv *priv, int head, int outp, u32 ctrl, + struct dcb_output *dcb, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, + struct nvbios_outp *info) +{ + struct nouveau_bios *bios = nouveau_bios(priv); + u16 mask, type, data; + + if (outp < 4) { + type = DCB_OUTPUT_ANALOG; + mask = 0; + } else { + outp -= 4; + switch (ctrl & 0x00000f00) { + case 0x00000000: type = DCB_OUTPUT_LVDS; mask = 1; break; + case 0x00000100: type = DCB_OUTPUT_TMDS; mask = 1; break; + case 0x00000200: type = DCB_OUTPUT_TMDS; mask = 2; break; + case 0x00000500: type = DCB_OUTPUT_TMDS; mask = 3; break; + case 0x00000800: type = DCB_OUTPUT_DP; mask = 1; break; + case 0x00000900: type = DCB_OUTPUT_DP; mask = 2; break; + default: + nv_error(priv, "unknown SOR mc 0x%08x\n", ctrl); + return 0x0000; + } + } + + mask = 0x00c0 & (mask << 6); + mask |= 0x0001 << outp; + mask |= 0x0100 << head; + + data = dcb_outp_match(bios, type, mask, ver, hdr, dcb); + if (!data) + return 0x0000; + + return nvbios_outp_match(bios, type, mask, ver, hdr, cnt, len, info); +} + +static bool +exec_script(struct nv50_disp_priv *priv, int head, int id) +{ + struct nouveau_bios *bios = nouveau_bios(priv); + struct nvbios_outp info; + struct dcb_output dcb; + u8 ver, hdr, cnt, len; + u16 data; + u32 ctrl = 0x00000000; + int i; + + for (i = 0; !(ctrl & (1 << head)) && i < 3; i++) + ctrl = nv_rd32(priv, 0x610b5c + (i * 8)); + + if (nv_device(priv)->chipset < 0x90 || + nv_device(priv)->chipset == 0x92 || + nv_device(priv)->chipset == 0xa0) { + for (i = 0; !(ctrl & (1 << head)) && i < 2; i++) + ctrl = nv_rd32(priv, 0x610b74 + (i * 8)); + i += 3; + } else { + for (i = 0; !(ctrl & (1 << head)) && i < 4; i++) + ctrl = nv_rd32(priv, 0x610798 + (i * 8)); + i += 3; + } + + if (!(ctrl & (1 << head))) + return false; + + data = exec_lookup(priv, head, i, ctrl, &dcb, &ver, &hdr, &cnt, &len, &info); + if (data) { + struct nvbios_init init = { + .subdev = nv_subdev(priv), + .bios = bios, + .offset = info.script[id], + .outp = &dcb, + .crtc = head, + .execute = 1, + }; + + return nvbios_exec(&init) == 0; + } + + return false; +} + +static u32 +exec_clkcmp(struct nv50_disp_priv *priv, int head, int id, u32 pclk, + struct dcb_output *outp) +{ + struct nouveau_bios *bios = nouveau_bios(priv); + struct nvbios_outp info1; + struct nvbios_ocfg info2; + u8 ver, hdr, cnt, len; + u16 data, conf; + u32 ctrl = 0x00000000; + int i; + + for (i = 0; !(ctrl & (1 << head)) && i < 3; i++) + ctrl = nv_rd32(priv, 0x610b58 + (i * 8)); + + if (nv_device(priv)->chipset < 0x90 || + nv_device(priv)->chipset == 0x92 || + nv_device(priv)->chipset == 0xa0) { + for (i = 0; !(ctrl & (1 << head)) && i < 2; i++) + ctrl = nv_rd32(priv, 0x610b70 + (i * 8)); + i += 3; + } else { + for (i = 0; !(ctrl & (1 << head)) && i < 4; i++) + ctrl = nv_rd32(priv, 0x610794 + (i * 8)); + i += 3; + } + + if (!(ctrl & (1 << head))) + return 0x0000; + + data = exec_lookup(priv, head, i, ctrl, outp, &ver, &hdr, &cnt, &len, &info1); + if (!data) + return 0x0000; + + switch (outp->type) { + case DCB_OUTPUT_TMDS: + conf = (ctrl & 0x00000f00) >> 8; + if (pclk >= 165000) + conf |= 0x0100; + break; + case DCB_OUTPUT_LVDS: + conf = priv->sor.lvdsconf; + break; + case DCB_OUTPUT_DP: + conf = (ctrl & 0x00000f00) >> 8; + break; + case DCB_OUTPUT_ANALOG: + default: + conf = 0x00ff; + break; + } + + data = nvbios_ocfg_match(bios, data, conf, &ver, &hdr, &cnt, &len, &info2); + if (data) { + data = nvbios_oclk_match(bios, info2.clkcmp[id], pclk); + if (data) { + struct nvbios_init init = { + .subdev = nv_subdev(priv), + .bios = bios, + .offset = data, + .outp = outp, + .crtc = head, + .execute = 1, + }; + + if (nvbios_exec(&init)) + return 0x0000; + return conf; + } + } + + return 0x0000; +} + +static void +nv50_disp_intr_unk10(struct nv50_disp_priv *priv, u32 super) +{ + int head = ffs((super & 0x00000060) >> 5) - 1; + if (head >= 0) { + head = ffs((super & 0x00000180) >> 7) - 1; + if (head >= 0) + exec_script(priv, head, 1); + } + + nv_wr32(priv, 0x610024, 0x00000010); + nv_wr32(priv, 0x610030, 0x80000000); +} + +static void +nv50_disp_intr_unk20_dp(struct nv50_disp_priv *priv, + struct dcb_output *outp, u32 pclk) +{ + const int link = !(outp->sorconf.link & 1); + const int or = ffs(outp->or) - 1; + const u32 soff = ( or * 0x800); + const u32 loff = (link * 0x080) + soff; + const u32 ctrl = nv_rd32(priv, 0x610794 + (or * 8)); + const u32 bits = ((ctrl & 0x000f0000) == 0x00020000) ? 18 : 24; + const u32 symbol = 100000; + u32 dpctrl = nv_rd32(priv, 0x61c10c + loff) & 0x0000f0000; + u32 clksor = nv_rd32(priv, 0x614300 + soff); + int bestTU = 0, bestVTUi = 0, bestVTUf = 0, bestVTUa = 0; + int TU, VTUi, VTUf, VTUa; + u64 link_data_rate, link_ratio, unk; + u32 best_diff = 64 * symbol; + u32 link_nr, link_bw, r; + + /* calculate packed data rate for each lane */ + if (dpctrl > 0x00030000) link_nr = 4; + else if (dpctrl > 0x00010000) link_nr = 2; + else link_nr = 1; + + if (clksor & 0x000c0000) + link_bw = 270000; + else + link_bw = 162000; + + link_data_rate = (pclk * bits / 8) / link_nr; + + /* calculate ratio of packed data rate to link symbol rate */ + link_ratio = link_data_rate * symbol; + r = do_div(link_ratio, link_bw); + + for (TU = 64; TU >= 32; TU--) { + /* calculate average number of valid symbols in each TU */ + u32 tu_valid = link_ratio * TU; + u32 calc, diff; + + /* find a hw representation for the fraction.. */ + VTUi = tu_valid / symbol; + calc = VTUi * symbol; + diff = tu_valid - calc; + if (diff) { + if (diff >= (symbol / 2)) { + VTUf = symbol / (symbol - diff); + if (symbol - (VTUf * diff)) + VTUf++; + + if (VTUf <= 15) { + VTUa = 1; + calc += symbol - (symbol / VTUf); + } else { + VTUa = 0; + VTUf = 1; + calc += symbol; + } + } else { + VTUa = 0; + VTUf = min((int)(symbol / diff), 15); + calc += symbol / VTUf; + } + + diff = calc - tu_valid; + } else { + /* no remainder, but the hw doesn't like the fractional + * part to be zero. decrement the integer part and + * have the fraction add a whole symbol back + */ + VTUa = 0; + VTUf = 1; + VTUi--; + } + + if (diff < best_diff) { + best_diff = diff; + bestTU = TU; + bestVTUa = VTUa; + bestVTUf = VTUf; + bestVTUi = VTUi; + if (diff == 0) + break; + } + } + + if (!bestTU) { + nv_error(priv, "unable to find suitable dp config\n"); + return; + } + + /* XXX close to vbios numbers, but not right */ + unk = (symbol - link_ratio) * bestTU; + unk *= link_ratio; + r = do_div(unk, symbol); + r = do_div(unk, symbol); + unk += 6; + + nv_mask(priv, 0x61c10c + loff, 0x000001fc, bestTU << 2); + nv_mask(priv, 0x61c128 + loff, 0x010f7f3f, bestVTUa << 24 | + bestVTUf << 16 | + bestVTUi << 8 | unk); +} + +static void +nv50_disp_intr_unk20(struct nv50_disp_priv *priv, u32 super) +{ + struct dcb_output outp; + u32 addr, mask, data; + int head; + + /* finish detaching encoder? */ + head = ffs((super & 0x00000180) >> 7) - 1; + if (head >= 0) + exec_script(priv, head, 2); + + /* check whether a vpll change is required */ + head = ffs((super & 0x00000600) >> 9) - 1; + if (head >= 0) { + u32 pclk = nv_rd32(priv, 0x610ad0 + (head * 0x540)) & 0x3fffff; + if (pclk) { + struct nouveau_clock *clk = nouveau_clock(priv); + clk->pll_set(clk, PLL_VPLL0 + head, pclk); + } + + nv_mask(priv, 0x614200 + head * 0x800, 0x0000000f, 0x00000000); + } + + /* (re)attach the relevant OR to the head */ + head = ffs((super & 0x00000180) >> 7) - 1; + if (head >= 0) { + u32 pclk = nv_rd32(priv, 0x610ad0 + (head * 0x540)) & 0x3fffff; + u32 conf = exec_clkcmp(priv, head, 0, pclk, &outp); + if (conf) { + if (outp.type == DCB_OUTPUT_ANALOG) { + addr = 0x614280 + (ffs(outp.or) - 1) * 0x800; + mask = 0xffffffff; + data = 0x00000000; + } else { + if (outp.type == DCB_OUTPUT_DP) + nv50_disp_intr_unk20_dp(priv, &outp, pclk); + addr = 0x614300 + (ffs(outp.or) - 1) * 0x800; + mask = 0x00000707; + data = (conf & 0x0100) ? 0x0101 : 0x0000; + } + + nv_mask(priv, addr, mask, data); + } + } + + nv_wr32(priv, 0x610024, 0x00000020); + nv_wr32(priv, 0x610030, 0x80000000); +} + +/* If programming a TMDS output on a SOR that can also be configured for + * DisplayPort, make sure NV50_SOR_DP_CTRL_ENABLE is forced off. + * + * It looks like the VBIOS TMDS scripts make an attempt at this, however, + * the VBIOS scripts on at least one board I have only switch it off on + * link 0, causing a blank display if the output has previously been + * programmed for DisplayPort. + */ +static void +nv50_disp_intr_unk40_tmds(struct nv50_disp_priv *priv, struct dcb_output *outp) +{ + struct nouveau_bios *bios = nouveau_bios(priv); + const int link = !(outp->sorconf.link & 1); + const int or = ffs(outp->or) - 1; + const u32 loff = (or * 0x800) + (link * 0x80); + const u16 mask = (outp->sorconf.link << 6) | outp->or; + u8 ver, hdr; + + if (dcb_outp_match(bios, DCB_OUTPUT_DP, mask, &ver, &hdr, outp)) + nv_mask(priv, 0x61c10c + loff, 0x00000001, 0x00000000); +} + +static void +nv50_disp_intr_unk40(struct nv50_disp_priv *priv, u32 super) +{ + int head = ffs((super & 0x00000180) >> 7) - 1; + if (head >= 0) { + struct dcb_output outp; + u32 pclk = nv_rd32(priv, 0x610ad0 + (head * 0x540)) & 0x3fffff; + if (pclk && exec_clkcmp(priv, head, 1, pclk, &outp)) { + if (outp.type == DCB_OUTPUT_TMDS) + nv50_disp_intr_unk40_tmds(priv, &outp); + } + } + + nv_wr32(priv, 0x610024, 0x00000040); + nv_wr32(priv, 0x610030, 0x80000000); +} + +static void +nv50_disp_intr_super(struct nv50_disp_priv *priv, u32 intr1) +{ + u32 super = nv_rd32(priv, 0x610030); + + nv_debug(priv, "supervisor 0x%08x 0x%08x\n", intr1, super); + + if (intr1 & 0x00000010) + nv50_disp_intr_unk10(priv, super); + if (intr1 & 0x00000020) + nv50_disp_intr_unk20(priv, super); + if (intr1 & 0x00000040) + nv50_disp_intr_unk40(priv, super); +} + void nv50_disp_intr(struct nouveau_subdev *subdev) { struct nv50_disp_priv *priv = (void *)subdev; - u32 stat1 = nv_rd32(priv, 0x610024); + u32 intr0 = nv_rd32(priv, 0x610020); + u32 intr1 = nv_rd32(priv, 0x610024); - if (stat1 & 0x00000004) { + if (intr0 & 0x001f0000) { + nv50_disp_intr_error(priv); + intr0 &= ~0x001f0000; + } + + if (intr1 & 0x00000004) { nv50_disp_intr_vblank(priv, 0); nv_wr32(priv, 0x610024, 0x00000004); - stat1 &= ~0x00000004; + intr1 &= ~0x00000004; } - if (stat1 & 0x00000008) { + if (intr1 & 0x00000008) { nv50_disp_intr_vblank(priv, 1); nv_wr32(priv, 0x610024, 0x00000008); - stat1 &= ~0x00000008; + intr1 &= ~0x00000008; } + if (intr1 & 0x00000070) { + nv50_disp_intr_super(priv, intr1); + intr1 &= ~0x00000070; + } } static int |