Op 12-04-17 om 09:38 schreef Daniel Vetter: > On Fri, Apr 07, 2017 at 08:07:51AM +0200, Maarten Lankhorst wrote: >> As a proof of concept, first try to convert intel_tv, which is a rarely >> used connector. It has 5 properties, tv format and 4 margins. >> >> I'm less certain about the state behavior itself, should we pass a size >> parameter to intel_connector_alloc instead, so duplicate_state >> can be done globally if it can be blindly copied? >> >> Can we also have a atomic_check function for connectors, so the >> crtc_state->connectors_changed can be set there? It would be cleaner >> and more atomic-like. >> >> To match the legacy behavior, format can be changed by probing just like >> in legacy mode. >> >> Changes since v1: >> - Add intel_encoder->swap_state to allow updating connector state. >> - Add intel_tv->format for detect_mode and mode_valid, updated on atomic >> commit. >> Changes since v2: >> - Fix typo in tv_choose_preferred modes function name. >> - Assignment of tv properties is done in core, so intel_tv only needs >> a atomic_check function. Thanks Ville! >> Changes since v3: >> - connection_mutex is now held in mode_valid() and get_modes(), >> this removes the need for caching parts of the connector_state. >> Changes since v4: >> - Use the new atomic connector check function. >> >> Signed-off-by: Maarten Lankhorst <[email protected]> >> --- >> drivers/gpu/drm/i915/intel_tv.c | 175 >> +++++++++++++++------------------------- >> 1 file changed, 63 insertions(+), 112 deletions(-) >> >> diff --git a/drivers/gpu/drm/i915/intel_tv.c >> b/drivers/gpu/drm/i915/intel_tv.c >> index 3af857a75fab..784df024e230 100644 >> --- a/drivers/gpu/drm/i915/intel_tv.c >> +++ b/drivers/gpu/drm/i915/intel_tv.c >> @@ -48,8 +48,6 @@ struct intel_tv { >> struct intel_encoder base; >> >> int type; >> - const char *tv_format; >> - int margin[4]; >> }; >> >> struct video_levels { >> @@ -840,32 +838,18 @@ intel_disable_tv(struct intel_encoder *encoder, >> I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE); >> } >> >> -static const struct tv_mode * >> -intel_tv_mode_lookup(const char *tv_format) >> +static const struct tv_mode *intel_tv_mode_find(struct drm_connector_state >> *conn_state) >> { >> - int i; >> - >> - for (i = 0; i < ARRAY_SIZE(tv_modes); i++) { >> - const struct tv_mode *tv_mode = &tv_modes[i]; >> + int format = conn_state->tv.mode; >> >> - if (!strcmp(tv_format, tv_mode->name)) >> - return tv_mode; >> - } >> - return NULL; >> -} >> - >> -static const struct tv_mode * >> -intel_tv_mode_find(struct intel_tv *intel_tv) >> -{ >> - return intel_tv_mode_lookup(intel_tv->tv_format); >> + return &tv_modes[format]; >> } >> >> static enum drm_mode_status >> intel_tv_mode_valid(struct drm_connector *connector, >> struct drm_display_mode *mode) >> { >> - struct intel_tv *intel_tv = intel_attached_tv(connector); >> - const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv); >> + const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state); >> int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; >> >> if (mode->clock > max_dotclk) >> @@ -892,8 +876,7 @@ intel_tv_compute_config(struct intel_encoder *encoder, >> struct intel_crtc_state *pipe_config, >> struct drm_connector_state *conn_state) >> { >> - struct intel_tv *intel_tv = enc_to_tv(encoder); >> - const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv); >> + const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state); >> >> if (!tv_mode) >> return false; >> @@ -999,7 +982,7 @@ static void intel_tv_pre_enable(struct intel_encoder >> *encoder, >> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); >> struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); >> struct intel_tv *intel_tv = enc_to_tv(encoder); >> - const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv); >> + const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state); >> u32 tv_ctl; >> u32 scctl1, scctl2, scctl3; >> int i, j; >> @@ -1102,12 +1085,12 @@ static void intel_tv_pre_enable(struct intel_encoder >> *encoder, >> else >> ysize = 2*tv_mode->nbr_end + 1; >> >> - xpos += intel_tv->margin[TV_MARGIN_LEFT]; >> - ypos += intel_tv->margin[TV_MARGIN_TOP]; >> - xsize -= (intel_tv->margin[TV_MARGIN_LEFT] + >> - intel_tv->margin[TV_MARGIN_RIGHT]); >> - ysize -= (intel_tv->margin[TV_MARGIN_TOP] + >> - intel_tv->margin[TV_MARGIN_BOTTOM]); >> + xpos += conn_state->tv.margins.left; >> + ypos += conn_state->tv.margins.top; >> + xsize -= (conn_state->tv.margins.left + >> + conn_state->tv.margins.right); >> + ysize -= (conn_state->tv.margins.top + >> + conn_state->tv.margins.bottom); >> I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos); >> I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize); >> >> @@ -1255,7 +1238,7 @@ intel_tv_detect_type(struct intel_tv *intel_tv, >> static void intel_tv_find_better_format(struct drm_connector *connector) >> { >> struct intel_tv *intel_tv = intel_attached_tv(connector); >> - const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv); >> + const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state); >> int i; >> >> if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) == >> @@ -1271,9 +1254,7 @@ static void intel_tv_find_better_format(struct >> drm_connector *connector) >> break; >> } >> >> - intel_tv->tv_format = tv_mode->name; >> - drm_object_property_set_value(&connector->base, >> - connector->dev->mode_config.tv_mode_property, i); >> + connector->state->tv.mode = i; >> } >> >> /** >> @@ -1314,16 +1295,15 @@ intel_tv_detect(struct drm_connector *connector, >> connector_status_connected; >> } else >> status = connector_status_unknown; >> - } else >> - return connector->status; >> >> - if (status != connector_status_connected) >> - return status; >> - >> - intel_tv->type = type; >> - intel_tv_find_better_format(connector); >> + if (status == connector_status_connected) { >> + intel_tv->type = type; >> + intel_tv_find_better_format(connector); >> + } >> >> - return connector_status_connected; >> + return status; >> + } else >> + return connector->status; >> } >> >> static const struct input_res { >> @@ -1343,12 +1323,9 @@ static const struct input_res { >> * Chose preferred mode according to line number of TV format >> */ >> static void >> -intel_tv_chose_preferred_modes(struct drm_connector *connector, >> +intel_tv_choose_preferred_modes(const struct tv_mode *tv_mode, >> struct drm_display_mode *mode_ptr) >> { >> - struct intel_tv *intel_tv = intel_attached_tv(connector); >> - const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv); >> - >> if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480) >> mode_ptr->type |= DRM_MODE_TYPE_PREFERRED; >> else if (tv_mode->nbr_end > 480) { >> @@ -1371,8 +1348,7 @@ static int >> intel_tv_get_modes(struct drm_connector *connector) >> { >> struct drm_display_mode *mode_ptr; >> - struct intel_tv *intel_tv = intel_attached_tv(connector); >> - const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv); >> + const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state); >> int j, count = 0; >> u64 tmp; >> >> @@ -1415,7 +1391,7 @@ intel_tv_get_modes(struct drm_connector *connector) >> mode_ptr->clock = (int) tmp; >> >> mode_ptr->type = DRM_MODE_TYPE_DRIVER; >> - intel_tv_chose_preferred_modes(connector, mode_ptr); >> + intel_tv_choose_preferred_modes(tv_mode, mode_ptr); >> drm_mode_probed_add(connector, mode_ptr); >> count++; >> } >> @@ -1430,74 +1406,47 @@ intel_tv_destroy(struct drm_connector *connector) >> kfree(connector); >> } >> >> - >> -static int >> -intel_tv_set_property(struct drm_connector *connector, struct drm_property >> *property, >> - uint64_t val) >> -{ >> - struct drm_device *dev = connector->dev; >> - struct intel_tv *intel_tv = intel_attached_tv(connector); >> - struct drm_crtc *crtc = intel_tv->base.base.crtc; >> - int ret = 0; >> - bool changed = false; >> - >> - ret = drm_object_property_set_value(&connector->base, property, val); >> - if (ret < 0) >> - goto out; >> - >> - if (property == dev->mode_config.tv_left_margin_property && >> - intel_tv->margin[TV_MARGIN_LEFT] != val) { >> - intel_tv->margin[TV_MARGIN_LEFT] = val; >> - changed = true; >> - } else if (property == dev->mode_config.tv_right_margin_property && >> - intel_tv->margin[TV_MARGIN_RIGHT] != val) { >> - intel_tv->margin[TV_MARGIN_RIGHT] = val; >> - changed = true; >> - } else if (property == dev->mode_config.tv_top_margin_property && >> - intel_tv->margin[TV_MARGIN_TOP] != val) { >> - intel_tv->margin[TV_MARGIN_TOP] = val; >> - changed = true; >> - } else if (property == dev->mode_config.tv_bottom_margin_property && >> - intel_tv->margin[TV_MARGIN_BOTTOM] != val) { >> - intel_tv->margin[TV_MARGIN_BOTTOM] = val; >> - changed = true; >> - } else if (property == dev->mode_config.tv_mode_property) { >> - if (val >= ARRAY_SIZE(tv_modes)) { >> - ret = -EINVAL; >> - goto out; >> - } >> - if (!strcmp(intel_tv->tv_format, tv_modes[val].name)) >> - goto out; >> - >> - intel_tv->tv_format = tv_modes[val].name; >> - changed = true; >> - } else { >> - ret = -EINVAL; >> - goto out; >> - } >> - >> - if (changed && crtc) >> - intel_crtc_restore_mode(crtc); >> -out: >> - return ret; >> -} >> - >> static const struct drm_connector_funcs intel_tv_connector_funcs = { >> .dpms = drm_atomic_helper_connector_dpms, >> .late_register = intel_connector_register, >> .early_unregister = intel_connector_unregister, >> .destroy = intel_tv_destroy, >> - .set_property = intel_tv_set_property, >> - .atomic_get_property = intel_connector_atomic_get_property, >> + .set_property = drm_atomic_helper_connector_set_property, >> .fill_modes = drm_helper_probe_single_connector_modes, >> .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, >> .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, >> }; >> >> +static int intel_tv_atomic_check(struct drm_connector *connector, >> + struct drm_connector_state *new_state) >> +{ >> + struct drm_crtc_state *new_crtc_state; >> + struct drm_connector_state *old_state; >> + >> + if (!new_state->crtc) >> + return 0; >> + >> + old_state = drm_atomic_get_old_connector_state(new_state->state, >> connector); >> + new_crtc_state = drm_atomic_get_new_crtc_state(new_state->state, >> new_state->crtc); >> + >> + if (old_state->tv.mode != new_state->tv.mode || >> + old_state->tv.margins.left != new_state->tv.margins.left || >> + old_state->tv.margins.right != new_state->tv.margins.right || >> + old_state->tv.margins.top != new_state->tv.margins.top || >> + old_state->tv.margins.bottom != new_state->tv.margins.bottom) { >> + /* Force a modeset. */ >> + >> + new_crtc_state->connectors_changed = true; >> + } > I wonder whether we should have a default atomic_check for TV, which does > exactly the above? Otoh, 2nd driver to use them can do this :-) > >> + >> + return 0; >> +} >> + >> static const struct drm_connector_helper_funcs >> intel_tv_connector_helper_funcs = { >> .detect_ctx = intel_tv_detect, >> .mode_valid = intel_tv_mode_valid, >> .get_modes = intel_tv_get_modes, >> + .atomic_check = intel_tv_atomic_check, >> }; >> >> static const struct drm_encoder_funcs intel_tv_enc_funcs = { >> @@ -1515,6 +1464,7 @@ intel_tv_init(struct drm_i915_private *dev_priv) >> u32 tv_dac_on, tv_dac_off, save_tv_dac; >> const char *tv_format_names[ARRAY_SIZE(tv_modes)]; >> int i, initial_mode = 0; >> + struct drm_connector_state *state; >> >> if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED) >> return; >> @@ -1560,6 +1510,7 @@ intel_tv_init(struct drm_i915_private *dev_priv) >> >> intel_encoder = &intel_tv->base; >> connector = &intel_connector->base; >> + state = connector->state; >> >> /* The documentation, for the older chipsets at least, recommend >> * using a polling method rather than hotplug detection for TVs. >> @@ -1597,12 +1548,12 @@ intel_tv_init(struct drm_i915_private *dev_priv) >> intel_tv->type = DRM_MODE_CONNECTOR_Unknown; >> >> /* BIOS margin values */ >> - intel_tv->margin[TV_MARGIN_LEFT] = 54; >> - intel_tv->margin[TV_MARGIN_TOP] = 36; >> - intel_tv->margin[TV_MARGIN_RIGHT] = 46; >> - intel_tv->margin[TV_MARGIN_BOTTOM] = 37; >> + state->tv.margins.left = 54; >> + state->tv.margins.top = 36; >> + state->tv.margins.right = 46; >> + state->tv.margins.bottom = 37; >> >> - intel_tv->tv_format = tv_modes[initial_mode].name; >> + state->tv.mode = initial_mode; >> >> drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs); >> connector->interlace_allowed = false; >> @@ -1616,17 +1567,17 @@ intel_tv_init(struct drm_i915_private *dev_priv) >> tv_format_names); >> >> drm_object_attach_property(&connector->base, >> dev->mode_config.tv_mode_property, >> - initial_mode); >> + state->tv.mode); >> drm_object_attach_property(&connector->base, >> dev->mode_config.tv_left_margin_property, >> - intel_tv->margin[TV_MARGIN_LEFT]); >> + state->tv.margins.left); >> drm_object_attach_property(&connector->base, >> dev->mode_config.tv_top_margin_property, >> - intel_tv->margin[TV_MARGIN_TOP]); >> + state->tv.margins.top); >> drm_object_attach_property(&connector->base, >> dev->mode_config.tv_right_margin_property, >> - intel_tv->margin[TV_MARGIN_RIGHT]); >> + state->tv.margins.right); >> drm_object_attach_property(&connector->base, >> dev->mode_config.tv_bottom_margin_property, >> - intel_tv->margin[TV_MARGIN_BOTTOM]); >> + state->tv.margins.bottom); > Another opportunity for a helper to attach the tw mode properties with > correct defaults and all that. Hm, on that ... should we have an > attach_prop function which doesn't require the initial value, since with > atomic that's not needed? Yeah perhaps, although we could just initialize to 0 here just fine with the atomic getproperty.
In fact probably even before this patch, since I believe it's broken with i915 being a atomic driver.. ~Maarten _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
