diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c new file mode 100644 index 000000000..70e2c414b --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c @@ -0,0 +1,219 @@ +/* + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include "mxms.h" + +#include <subdev/bios.h> +#include <subdev/bios/conn.h> +#include <subdev/bios/dcb.h> +#include <subdev/bios/mxm.h> + +struct context { + u32 *outp; + struct mxms_odev desc; +}; + +static bool +mxm_match_tmds_partner(struct nvkm_mxm *mxm, u8 *data, void *info) +{ + struct context *ctx = info; + struct mxms_odev desc; + + mxms_output_device(mxm, data, &desc); + if (desc.outp_type == 2 && + desc.dig_conn == ctx->desc.dig_conn) + return false; + return true; +} + +static bool +mxm_match_dcb(struct nvkm_mxm *mxm, u8 *data, void *info) +{ + struct nvkm_bios *bios = mxm->subdev.device->bios; + struct context *ctx = info; + u64 desc = *(u64 *)data; + + mxms_output_device(mxm, data, &ctx->desc); + + /* match dcb encoder type to mxm-ods device type */ + if ((ctx->outp[0] & 0x0000000f) != ctx->desc.outp_type) + return true; + + /* digital output, have some extra stuff to match here, there's a + * table in the vbios that provides a mapping from the mxm digital + * connection enum values to SOR/link + */ + if ((desc & 0x00000000000000f0) >= 0x20) { + /* check against sor index */ + u8 link = mxm_sor_map(bios, ctx->desc.dig_conn); + if ((ctx->outp[0] & 0x0f000000) != (link & 0x0f) << 24) + return true; + + /* check dcb entry has a compatible link field */ + link = (link & 0x30) >> 4; + if ((link & ((ctx->outp[1] & 0x00000030) >> 4)) != link) + return true; + } + + /* mark this descriptor accounted for by setting invalid device type, + * except of course some manufactures don't follow specs properly and + * we need to avoid killing off the TMDS function on DP connectors + * if MXM-SIS is missing an entry for it. + */ + data[0] &= ~0xf0; + if (ctx->desc.outp_type == 6 && ctx->desc.conn_type == 6 && + mxms_foreach(mxm, 0x01, mxm_match_tmds_partner, ctx)) { + data[0] |= 0x20; /* modify descriptor to match TMDS now */ + } else { + data[0] |= 0xf0; + } + + return false; +} + +static int +mxm_dcb_sanitise_entry(struct nvkm_bios *bios, void *data, int idx, u16 pdcb) +{ + struct nvkm_mxm *mxm = data; + struct context ctx = { .outp = (u32 *)(bios->data + pdcb) }; + u8 type, i2cidx, link, ver, len; + u8 *conn; + + /* look for an output device structure that matches this dcb entry. + * if one isn't found, disable it. + */ + if (mxms_foreach(mxm, 0x01, mxm_match_dcb, &ctx)) { + nvkm_debug(&mxm->subdev, "disable %d: %08x %08x\n", + idx, ctx.outp[0], ctx.outp[1]); + ctx.outp[0] |= 0x0000000f; + return 0; + } + + /* modify the output's ddc/aux port, there's a pointer to a table + * with the mapping from mxm ddc/aux port to dcb i2c_index in the + * vbios mxm table + */ + i2cidx = mxm_ddc_map(bios, ctx.desc.ddc_port); + if ((ctx.outp[0] & 0x0000000f) != DCB_OUTPUT_DP) + i2cidx = (i2cidx & 0x0f) << 4; + else + i2cidx = (i2cidx & 0xf0); + + if (i2cidx != 0xf0) { + ctx.outp[0] &= ~0x000000f0; + ctx.outp[0] |= i2cidx; + } + + /* override dcb sorconf.link, based on what mxm data says */ + switch (ctx.desc.outp_type) { + case 0x00: /* Analog CRT */ + case 0x01: /* Analog TV/HDTV */ + break; + default: + link = mxm_sor_map(bios, ctx.desc.dig_conn) & 0x30; + ctx.outp[1] &= ~0x00000030; + ctx.outp[1] |= link; + break; + } + + /* we may need to fixup various other vbios tables based on what + * the descriptor says the connector type should be. + * + * in a lot of cases, the vbios tables will claim DVI-I is possible, + * and the mxm data says the connector is really HDMI. another + * common example is DP->eDP. + */ + conn = bios->data; + conn += nvbios_connEe(bios, (ctx.outp[0] & 0x0000f000) >> 12, &ver, &len); + type = conn[0]; + switch (ctx.desc.conn_type) { + case 0x01: /* LVDS */ + ctx.outp[1] |= 0x00000004; /* use_power_scripts */ + /* XXX: modify default link width in LVDS table */ + break; + case 0x02: /* HDMI */ + type = DCB_CONNECTOR_HDMI_1; + break; + case 0x03: /* DVI-D */ + type = DCB_CONNECTOR_DVI_D; + break; + case 0x0e: /* eDP, falls through to DPint */ + ctx.outp[1] |= 0x00010000; + fallthrough; + case 0x07: /* DP internal, wtf is this?? HP8670w */ + ctx.outp[1] |= 0x00000004; /* use_power_scripts? */ + type = DCB_CONNECTOR_eDP; + break; + default: + break; + } + + if (mxms_version(mxm) >= 0x0300) + conn[0] = type; + + return 0; +} + +static bool +mxm_show_unmatched(struct nvkm_mxm *mxm, u8 *data, void *info) +{ + struct nvkm_subdev *subdev = &mxm->subdev; + u64 desc = *(u64 *)data; + if ((desc & 0xf0) != 0xf0) + nvkm_info(subdev, "unmatched output device %016llx\n", desc); + return true; +} + +static void +mxm_dcb_sanitise(struct nvkm_mxm *mxm) +{ + struct nvkm_subdev *subdev = &mxm->subdev; + struct nvkm_bios *bios = subdev->device->bios; + u8 ver, hdr, cnt, len; + u16 dcb = dcb_table(bios, &ver, &hdr, &cnt, &len); + if (dcb == 0x0000 || (ver != 0x40 && ver != 0x41)) { + nvkm_warn(subdev, "unsupported DCB version\n"); + return; + } + + dcb_outp_foreach(bios, mxm, mxm_dcb_sanitise_entry); + mxms_foreach(mxm, 0x01, mxm_show_unmatched, NULL); +} + +int +nv50_mxm_new(struct nvkm_device *device, int index, struct nvkm_subdev **pmxm) +{ + struct nvkm_mxm *mxm; + int ret; + + ret = nvkm_mxm_new_(device, index, &mxm); + if (mxm) + *pmxm = &mxm->subdev; + if (ret) + return ret; + + if (mxm->action & MXM_SANITISE_DCB) + mxm_dcb_sanitise(mxm); + + return 0; +} |