From eb6313add6dddf07ea3e50c4caa33a9c3b2379f1 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 11 Feb 2013 09:52:58 +1000 Subject: [PATCH] drm/nv50: initial kms support for off-chip TMDS/DP encoders Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_bios.c | 5 +- drivers/gpu/drm/nouveau/nv50_display.c | 215 +++++++++++++++++++++++-- 2 files changed, 202 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index b64065781a4a..50a6dd02f7c5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -1469,6 +1469,7 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, } case DCB_OUTPUT_DP: entry->dpconf.sor.link = (conf & 0x00000030) >> 4; + entry->extdev = (conf & 0x0000ff00) >> 8; switch ((conf & 0x00e00000) >> 21) { case 0: entry->dpconf.link_bw = 162000; @@ -1490,8 +1491,10 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, } break; case DCB_OUTPUT_TMDS: - if (dcb->version >= 0x40) + if (dcb->version >= 0x40) { entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; + entry->extdev = (conf & 0x0000ff00) >> 8; + } else if (dcb->version >= 0x30) entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8; else if (dcb->version >= 0x22) diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 5c56575729be..49f26cd86013 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1922,6 +1922,184 @@ nv50_sor_create(struct drm_connector *connector, struct dcb_output *dcbe) return 0; } +/****************************************************************************** + * PIOR + *****************************************************************************/ + +static void +nv50_pior_dpms(struct drm_encoder *encoder, int mode) +{ + struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); + struct nv50_disp *disp = nv50_disp(encoder->dev); + u32 mthd = (nv_encoder->dcb->type << 12) | nv_encoder->or; + u32 ctrl = (mode == DRM_MODE_DPMS_ON); + nv_call(disp->core, NV50_DISP_PIOR_PWR + mthd, ctrl); +} + +static bool +nv50_pior_mode_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); + struct nouveau_connector *nv_connector; + + nv_connector = nouveau_encoder_connector_get(nv_encoder); + if (nv_connector && nv_connector->native_mode) { + if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) { + int id = adjusted_mode->base.id; + *adjusted_mode = *nv_connector->native_mode; + adjusted_mode->base.id = id; + } + } + + adjusted_mode->clock *= 2; + return true; +} + +static void +nv50_pior_commit(struct drm_encoder *encoder) +{ +} + +static void +nv50_pior_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct nv50_mast *mast = nv50_mast(encoder->dev); + struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); + struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); + struct nouveau_connector *nv_connector; + u8 owner = 1 << nv_crtc->index; + u8 proto, depth; + u32 *push; + + nv_connector = nouveau_encoder_connector_get(nv_encoder); + switch (nv_connector->base.display_info.bpc) { + case 10: depth = 0x6; break; + case 8: depth = 0x5; break; + case 6: depth = 0x2; break; + default: depth = 0x0; break; + } + + switch (nv_encoder->dcb->type) { + case DCB_OUTPUT_TMDS: + case DCB_OUTPUT_DP: + proto = 0x0; + break; + default: + BUG_ON(1); + break; + } + + nv50_pior_dpms(encoder, DRM_MODE_DPMS_ON); + + push = evo_wait(mast, 8); + if (push) { + if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) { + u32 ctrl = (depth << 16) | (proto << 8) | owner; + if (mode->flags & DRM_MODE_FLAG_NHSYNC) + ctrl |= 0x00001000; + if (mode->flags & DRM_MODE_FLAG_NVSYNC) + ctrl |= 0x00002000; + evo_mthd(push, 0x0700 + (nv_encoder->or * 0x040), 1); + evo_data(push, ctrl); + } + + evo_kick(push, mast); + } + + nv_encoder->crtc = encoder->crtc; +} + +static void +nv50_pior_disconnect(struct drm_encoder *encoder) +{ + struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); + struct nv50_mast *mast = nv50_mast(encoder->dev); + const int or = nv_encoder->or; + u32 *push; + + if (nv_encoder->crtc) { + nv50_crtc_prepare(nv_encoder->crtc); + + push = evo_wait(mast, 4); + if (push) { + if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) { + evo_mthd(push, 0x0700 + (or * 0x040), 1); + evo_data(push, 0x00000000); + } + + evo_mthd(push, 0x0080, 1); + evo_data(push, 0x00000000); + evo_kick(push, mast); + } + } + + nv_encoder->crtc = NULL; +} + +static void +nv50_pior_destroy(struct drm_encoder *encoder) +{ + drm_encoder_cleanup(encoder); + kfree(encoder); +} + +static const struct drm_encoder_helper_funcs nv50_pior_hfunc = { + .dpms = nv50_pior_dpms, + .mode_fixup = nv50_pior_mode_fixup, + .prepare = nv50_pior_disconnect, + .commit = nv50_pior_commit, + .mode_set = nv50_pior_mode_set, + .disable = nv50_pior_disconnect, + .get_crtc = nv50_display_crtc_get, +}; + +static const struct drm_encoder_funcs nv50_pior_func = { + .destroy = nv50_pior_destroy, +}; + +static int +nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe) +{ + struct nouveau_drm *drm = nouveau_drm(connector->dev); + struct nouveau_i2c *i2c = nouveau_i2c(drm->device); + struct nouveau_i2c_port *ddc = NULL; + struct nouveau_encoder *nv_encoder; + struct drm_encoder *encoder; + int type; + + switch (dcbe->type) { + case DCB_OUTPUT_TMDS: + ddc = i2c->find_type(i2c, NV_I2C_TYPE_EXTDDC(dcbe->extdev)); + type = DRM_MODE_ENCODER_TMDS; + break; + case DCB_OUTPUT_DP: + ddc = i2c->find_type(i2c, NV_I2C_TYPE_EXTAUX(dcbe->extdev)); + type = DRM_MODE_ENCODER_TMDS; + break; + default: + return -ENODEV; + } + + nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); + if (!nv_encoder) + return -ENOMEM; + nv_encoder->dcb = dcbe; + nv_encoder->or = ffs(dcbe->or) - 1; + nv_encoder->i2c = ddc; + + encoder = to_drm_encoder(nv_encoder); + encoder->possible_crtcs = dcbe->heads; + encoder->possible_clones = 0; + drm_encoder_init(connector->dev, encoder, &nv50_pior_func, type); + drm_encoder_helper_add(encoder, &nv50_pior_hfunc); + + drm_mode_connector_attach_encoder(connector, encoder); + return 0; +} + /****************************************************************************** * Init *****************************************************************************/ @@ -2044,25 +2222,28 @@ nv50_display_create(struct drm_device *dev) if (IS_ERR(connector)) continue; - if (dcbe->location != DCB_LOC_ON_CHIP) { - NV_WARN(drm, "skipping off-chip encoder %d/%d\n", - dcbe->type, ffs(dcbe->or) - 1); - continue; + if (dcbe->location == DCB_LOC_ON_CHIP) { + switch (dcbe->type) { + case DCB_OUTPUT_TMDS: + case DCB_OUTPUT_LVDS: + case DCB_OUTPUT_DP: + ret = nv50_sor_create(connector, dcbe); + break; + case DCB_OUTPUT_ANALOG: + ret = nv50_dac_create(connector, dcbe); + break; + default: + ret = -ENODEV; + break; + } + } else { + ret = nv50_pior_create(connector, dcbe); } - switch (dcbe->type) { - case DCB_OUTPUT_TMDS: - case DCB_OUTPUT_LVDS: - case DCB_OUTPUT_DP: - nv50_sor_create(connector, dcbe); - break; - case DCB_OUTPUT_ANALOG: - nv50_dac_create(connector, dcbe); - break; - default: - NV_WARN(drm, "skipping unsupported encoder %d/%d\n", - dcbe->type, ffs(dcbe->or) - 1); - continue; + if (ret) { + NV_WARN(drm, "failed to create encoder %d/%d/%d: %d\n", + dcbe->location, dcbe->type, + ffs(dcbe->or) - 1, ret); } } -- 2.34.1