0,0 → 1,796 |
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#include <drm/drmP.h> |
#include <drm/drm_dp_mst_helper.h> |
#include <drm/drm_fb_helper.h> |
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#include "radeon.h" |
#include "atom.h" |
#include "ni_reg.h" |
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static struct radeon_encoder *radeon_dp_create_fake_mst_encoder(struct radeon_connector *connector); |
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static int radeon_atom_set_enc_offset(int id) |
{ |
static const int offsets[] = { EVERGREEN_CRTC0_REGISTER_OFFSET, |
EVERGREEN_CRTC1_REGISTER_OFFSET, |
EVERGREEN_CRTC2_REGISTER_OFFSET, |
EVERGREEN_CRTC3_REGISTER_OFFSET, |
EVERGREEN_CRTC4_REGISTER_OFFSET, |
EVERGREEN_CRTC5_REGISTER_OFFSET, |
0x13830 - 0x7030 }; |
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return offsets[id]; |
} |
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static int radeon_dp_mst_set_be_cntl(struct radeon_encoder *primary, |
struct radeon_encoder_mst *mst_enc, |
enum radeon_hpd_id hpd, bool enable) |
{ |
struct drm_device *dev = primary->base.dev; |
struct radeon_device *rdev = dev->dev_private; |
uint32_t reg; |
int retries = 0; |
uint32_t temp; |
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reg = RREG32(NI_DIG_BE_CNTL + primary->offset); |
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/* set MST mode */ |
reg &= ~NI_DIG_FE_DIG_MODE(7); |
reg |= NI_DIG_FE_DIG_MODE(NI_DIG_MODE_DP_MST); |
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if (enable) |
reg |= NI_DIG_FE_SOURCE_SELECT(1 << mst_enc->fe); |
else |
reg &= ~NI_DIG_FE_SOURCE_SELECT(1 << mst_enc->fe); |
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reg |= NI_DIG_HPD_SELECT(hpd); |
DRM_DEBUG_KMS("writing 0x%08x 0x%08x\n", NI_DIG_BE_CNTL + primary->offset, reg); |
WREG32(NI_DIG_BE_CNTL + primary->offset, reg); |
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if (enable) { |
uint32_t offset = radeon_atom_set_enc_offset(mst_enc->fe); |
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do { |
temp = RREG32(NI_DIG_FE_CNTL + offset); |
} while ((temp & NI_DIG_SYMCLK_FE_ON) && retries++ < 10000); |
if (retries == 10000) |
DRM_ERROR("timed out waiting for FE %d %d\n", primary->offset, mst_enc->fe); |
} |
return 0; |
} |
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static int radeon_dp_mst_set_stream_attrib(struct radeon_encoder *primary, |
int stream_number, |
int fe, |
int slots) |
{ |
struct drm_device *dev = primary->base.dev; |
struct radeon_device *rdev = dev->dev_private; |
u32 temp, val; |
int retries = 0; |
int satreg, satidx; |
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satreg = stream_number >> 1; |
satidx = stream_number & 1; |
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temp = RREG32(NI_DP_MSE_SAT0 + satreg + primary->offset); |
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val = NI_DP_MSE_SAT_SLOT_COUNT0(slots) | NI_DP_MSE_SAT_SRC0(fe); |
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val <<= (16 * satidx); |
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temp &= ~(0xffff << (16 * satidx)); |
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temp |= val; |
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DRM_DEBUG_KMS("writing 0x%08x 0x%08x\n", NI_DP_MSE_SAT0 + satreg + primary->offset, temp); |
WREG32(NI_DP_MSE_SAT0 + satreg + primary->offset, temp); |
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WREG32(NI_DP_MSE_SAT_UPDATE + primary->offset, 1); |
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do { |
temp = RREG32(NI_DP_MSE_SAT_UPDATE + primary->offset); |
} while ((temp & 0x1) && retries++ < 10000); |
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if (retries == 10000) |
DRM_ERROR("timed out waitin for SAT update %d\n", primary->offset); |
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/* MTP 16 ? */ |
return 0; |
} |
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static int radeon_dp_mst_update_stream_attribs(struct radeon_connector *mst_conn, |
struct radeon_encoder *primary) |
{ |
struct drm_device *dev = mst_conn->base.dev; |
struct stream_attribs new_attribs[6]; |
int i; |
int idx = 0; |
struct radeon_connector *radeon_connector; |
struct drm_connector *connector; |
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memset(new_attribs, 0, sizeof(new_attribs)); |
list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
struct radeon_encoder *subenc; |
struct radeon_encoder_mst *mst_enc; |
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radeon_connector = to_radeon_connector(connector); |
if (!radeon_connector->is_mst_connector) |
continue; |
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if (radeon_connector->mst_port != mst_conn) |
continue; |
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subenc = radeon_connector->mst_encoder; |
mst_enc = subenc->enc_priv; |
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if (!mst_enc->enc_active) |
continue; |
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new_attribs[idx].fe = mst_enc->fe; |
new_attribs[idx].slots = drm_dp_mst_get_vcpi_slots(&mst_conn->mst_mgr, mst_enc->port); |
idx++; |
} |
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for (i = 0; i < idx; i++) { |
if (new_attribs[i].fe != mst_conn->cur_stream_attribs[i].fe || |
new_attribs[i].slots != mst_conn->cur_stream_attribs[i].slots) { |
radeon_dp_mst_set_stream_attrib(primary, i, new_attribs[i].fe, new_attribs[i].slots); |
mst_conn->cur_stream_attribs[i].fe = new_attribs[i].fe; |
mst_conn->cur_stream_attribs[i].slots = new_attribs[i].slots; |
} |
} |
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for (i = idx; i < mst_conn->enabled_attribs; i++) { |
radeon_dp_mst_set_stream_attrib(primary, i, 0, 0); |
mst_conn->cur_stream_attribs[i].fe = 0; |
mst_conn->cur_stream_attribs[i].slots = 0; |
} |
mst_conn->enabled_attribs = idx; |
return 0; |
} |
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static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, uint32_t x, uint32_t y) |
{ |
struct drm_device *dev = mst->base.dev; |
struct radeon_device *rdev = dev->dev_private; |
struct radeon_encoder_mst *mst_enc = mst->enc_priv; |
uint32_t val, temp; |
uint32_t offset = radeon_atom_set_enc_offset(mst_enc->fe); |
int retries = 0; |
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val = NI_DP_MSE_RATE_X(x) | NI_DP_MSE_RATE_Y(y); |
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WREG32(NI_DP_MSE_RATE_CNTL + offset, val); |
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do { |
temp = RREG32(NI_DP_MSE_RATE_UPDATE + offset); |
} while ((temp & 0x1) && (retries++ < 10000)); |
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if (retries >= 10000) |
DRM_ERROR("timed out wait for rate cntl %d\n", mst_enc->fe); |
return 0; |
} |
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static int radeon_dp_mst_get_ddc_modes(struct drm_connector *connector) |
{ |
struct radeon_connector *radeon_connector = to_radeon_connector(connector); |
struct radeon_connector *master = radeon_connector->mst_port; |
struct edid *edid; |
int ret = 0; |
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edid = drm_dp_mst_get_edid(connector, &master->mst_mgr, radeon_connector->port); |
radeon_connector->edid = edid; |
DRM_DEBUG_KMS("edid retrieved %p\n", edid); |
if (radeon_connector->edid) { |
drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid); |
ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid); |
drm_edid_to_eld(&radeon_connector->base, radeon_connector->edid); |
return ret; |
} |
drm_mode_connector_update_edid_property(&radeon_connector->base, NULL); |
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return ret; |
} |
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static int radeon_dp_mst_get_modes(struct drm_connector *connector) |
{ |
return radeon_dp_mst_get_ddc_modes(connector); |
} |
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static enum drm_mode_status |
radeon_dp_mst_mode_valid(struct drm_connector *connector, |
struct drm_display_mode *mode) |
{ |
/* TODO - validate mode against available PBN for link */ |
if (mode->clock < 10000) |
return MODE_CLOCK_LOW; |
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if (mode->flags & DRM_MODE_FLAG_DBLCLK) |
return MODE_H_ILLEGAL; |
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return MODE_OK; |
} |
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struct drm_encoder *radeon_mst_best_encoder(struct drm_connector *connector) |
{ |
struct radeon_connector *radeon_connector = to_radeon_connector(connector); |
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return &radeon_connector->mst_encoder->base; |
} |
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static const struct drm_connector_helper_funcs radeon_dp_mst_connector_helper_funcs = { |
.get_modes = radeon_dp_mst_get_modes, |
.mode_valid = radeon_dp_mst_mode_valid, |
.best_encoder = radeon_mst_best_encoder, |
}; |
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static enum drm_connector_status |
radeon_dp_mst_detect(struct drm_connector *connector, bool force) |
{ |
struct radeon_connector *radeon_connector = to_radeon_connector(connector); |
struct radeon_connector *master = radeon_connector->mst_port; |
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return drm_dp_mst_detect_port(connector, &master->mst_mgr, radeon_connector->port); |
} |
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static void |
radeon_dp_mst_connector_destroy(struct drm_connector *connector) |
{ |
struct radeon_connector *radeon_connector = to_radeon_connector(connector); |
struct radeon_encoder *radeon_encoder = radeon_connector->mst_encoder; |
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drm_encoder_cleanup(&radeon_encoder->base); |
kfree(radeon_encoder); |
drm_connector_cleanup(connector); |
kfree(radeon_connector); |
} |
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static int radeon_connector_dpms(struct drm_connector *connector, int mode) |
{ |
DRM_DEBUG_KMS("\n"); |
return 0; |
} |
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static const struct drm_connector_funcs radeon_dp_mst_connector_funcs = { |
.dpms = radeon_connector_dpms, |
.detect = radeon_dp_mst_detect, |
.fill_modes = drm_helper_probe_single_connector_modes, |
.destroy = radeon_dp_mst_connector_destroy, |
}; |
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static struct drm_connector *radeon_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr, |
struct drm_dp_mst_port *port, |
const char *pathprop) |
{ |
struct radeon_connector *master = container_of(mgr, struct radeon_connector, mst_mgr); |
struct drm_device *dev = master->base.dev; |
struct radeon_connector *radeon_connector; |
struct drm_connector *connector; |
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radeon_connector = kzalloc(sizeof(*radeon_connector), GFP_KERNEL); |
if (!radeon_connector) |
return NULL; |
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radeon_connector->is_mst_connector = true; |
connector = &radeon_connector->base; |
radeon_connector->port = port; |
radeon_connector->mst_port = master; |
DRM_DEBUG_KMS("\n"); |
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drm_connector_init(dev, connector, &radeon_dp_mst_connector_funcs, DRM_MODE_CONNECTOR_DisplayPort); |
drm_connector_helper_add(connector, &radeon_dp_mst_connector_helper_funcs); |
radeon_connector->mst_encoder = radeon_dp_create_fake_mst_encoder(master); |
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drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0); |
drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0); |
drm_mode_connector_set_path_property(connector, pathprop); |
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return connector; |
} |
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static void radeon_dp_register_mst_connector(struct drm_connector *connector) |
{ |
struct drm_device *dev = connector->dev; |
struct radeon_device *rdev = dev->dev_private; |
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drm_modeset_lock_all(dev); |
radeon_fb_add_connector(rdev, connector); |
drm_modeset_unlock_all(dev); |
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drm_connector_register(connector); |
} |
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static void radeon_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr, |
struct drm_connector *connector) |
{ |
struct radeon_connector *master = container_of(mgr, struct radeon_connector, mst_mgr); |
struct drm_device *dev = master->base.dev; |
struct radeon_device *rdev = dev->dev_private; |
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drm_connector_unregister(connector); |
/* need to nuke the connector */ |
drm_modeset_lock_all(dev); |
/* dpms off */ |
radeon_fb_remove_connector(rdev, connector); |
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drm_connector_cleanup(connector); |
drm_modeset_unlock_all(dev); |
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kfree(connector); |
DRM_DEBUG_KMS("\n"); |
} |
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static void radeon_dp_mst_hotplug(struct drm_dp_mst_topology_mgr *mgr) |
{ |
struct radeon_connector *master = container_of(mgr, struct radeon_connector, mst_mgr); |
struct drm_device *dev = master->base.dev; |
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drm_kms_helper_hotplug_event(dev); |
} |
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struct drm_dp_mst_topology_cbs mst_cbs = { |
.add_connector = radeon_dp_add_mst_connector, |
.register_connector = radeon_dp_register_mst_connector, |
.destroy_connector = radeon_dp_destroy_mst_connector, |
.hotplug = radeon_dp_mst_hotplug, |
}; |
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struct radeon_connector *radeon_mst_find_connector(struct drm_encoder *encoder) |
{ |
struct drm_device *dev = encoder->dev; |
struct drm_connector *connector; |
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list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
struct radeon_connector *radeon_connector = to_radeon_connector(connector); |
if (!connector->encoder) |
continue; |
if (!radeon_connector->is_mst_connector) |
continue; |
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DRM_DEBUG_KMS("checking %p vs %p\n", connector->encoder, encoder); |
if (connector->encoder == encoder) |
return radeon_connector; |
} |
return NULL; |
} |
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void radeon_dp_mst_prepare_pll(struct drm_crtc *crtc, struct drm_display_mode *mode) |
{ |
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
struct drm_device *dev = crtc->dev; |
struct radeon_device *rdev = dev->dev_private; |
struct radeon_encoder *radeon_encoder = to_radeon_encoder(radeon_crtc->encoder); |
struct radeon_encoder_mst *mst_enc = radeon_encoder->enc_priv; |
struct radeon_connector *radeon_connector = radeon_mst_find_connector(&radeon_encoder->base); |
int dp_clock; |
struct radeon_connector_atom_dig *dig_connector = mst_enc->connector->con_priv; |
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if (radeon_connector) { |
radeon_connector->pixelclock_for_modeset = mode->clock; |
if (radeon_connector->base.display_info.bpc) |
radeon_crtc->bpc = radeon_connector->base.display_info.bpc; |
else |
radeon_crtc->bpc = 8; |
} |
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DRM_DEBUG_KMS("dp_clock %p %d\n", dig_connector, dig_connector->dp_clock); |
dp_clock = dig_connector->dp_clock; |
radeon_crtc->ss_enabled = |
radeon_atombios_get_asic_ss_info(rdev, &radeon_crtc->ss, |
ASIC_INTERNAL_SS_ON_DP, |
dp_clock); |
} |
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static void |
radeon_mst_encoder_dpms(struct drm_encoder *encoder, int mode) |
{ |
struct drm_device *dev = encoder->dev; |
struct radeon_device *rdev = dev->dev_private; |
struct radeon_encoder *radeon_encoder, *primary; |
struct radeon_encoder_mst *mst_enc; |
struct radeon_encoder_atom_dig *dig_enc; |
struct radeon_connector *radeon_connector; |
struct drm_crtc *crtc; |
struct radeon_crtc *radeon_crtc; |
int ret, slots; |
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if (!ASIC_IS_DCE5(rdev)) { |
DRM_ERROR("got mst dpms on non-DCE5\n"); |
return; |
} |
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radeon_connector = radeon_mst_find_connector(encoder); |
if (!radeon_connector) |
return; |
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radeon_encoder = to_radeon_encoder(encoder); |
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mst_enc = radeon_encoder->enc_priv; |
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primary = mst_enc->primary; |
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dig_enc = primary->enc_priv; |
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crtc = encoder->crtc; |
DRM_DEBUG_KMS("got connector %d\n", dig_enc->active_mst_links); |
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switch (mode) { |
case DRM_MODE_DPMS_ON: |
dig_enc->active_mst_links++; |
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radeon_crtc = to_radeon_crtc(crtc); |
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if (dig_enc->active_mst_links == 1) { |
mst_enc->fe = dig_enc->dig_encoder; |
mst_enc->fe_from_be = true; |
atombios_set_mst_encoder_crtc_source(encoder, mst_enc->fe); |
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atombios_dig_encoder_setup(&primary->base, ATOM_ENCODER_CMD_SETUP, 0); |
atombios_dig_transmitter_setup2(&primary->base, ATOM_TRANSMITTER_ACTION_ENABLE, |
0, 0, dig_enc->dig_encoder); |
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if (radeon_dp_needs_link_train(mst_enc->connector) || |
dig_enc->active_mst_links == 1) { |
radeon_dp_link_train(&primary->base, &mst_enc->connector->base); |
} |
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} else { |
mst_enc->fe = radeon_atom_pick_dig_encoder(encoder, radeon_crtc->crtc_id); |
if (mst_enc->fe == -1) |
DRM_ERROR("failed to get frontend for dig encoder\n"); |
mst_enc->fe_from_be = false; |
atombios_set_mst_encoder_crtc_source(encoder, mst_enc->fe); |
} |
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DRM_DEBUG_KMS("dig encoder is %d %d %d\n", dig_enc->dig_encoder, |
dig_enc->linkb, radeon_crtc->crtc_id); |
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ret = drm_dp_mst_allocate_vcpi(&radeon_connector->mst_port->mst_mgr, |
radeon_connector->port, |
mst_enc->pbn, &slots); |
ret = drm_dp_update_payload_part1(&radeon_connector->mst_port->mst_mgr); |
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radeon_dp_mst_set_be_cntl(primary, mst_enc, |
radeon_connector->mst_port->hpd.hpd, true); |
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mst_enc->enc_active = true; |
radeon_dp_mst_update_stream_attribs(radeon_connector->mst_port, primary); |
radeon_dp_mst_set_vcp_size(radeon_encoder, slots, 0); |
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atombios_dig_encoder_setup2(&primary->base, ATOM_ENCODER_CMD_DP_VIDEO_ON, 0, |
mst_enc->fe); |
ret = drm_dp_check_act_status(&radeon_connector->mst_port->mst_mgr); |
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ret = drm_dp_update_payload_part2(&radeon_connector->mst_port->mst_mgr); |
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break; |
case DRM_MODE_DPMS_STANDBY: |
case DRM_MODE_DPMS_SUSPEND: |
case DRM_MODE_DPMS_OFF: |
DRM_ERROR("DPMS OFF %d\n", dig_enc->active_mst_links); |
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if (!mst_enc->enc_active) |
return; |
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drm_dp_mst_reset_vcpi_slots(&radeon_connector->mst_port->mst_mgr, mst_enc->port); |
ret = drm_dp_update_payload_part1(&radeon_connector->mst_port->mst_mgr); |
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drm_dp_check_act_status(&radeon_connector->mst_port->mst_mgr); |
/* and this can also fail */ |
drm_dp_update_payload_part2(&radeon_connector->mst_port->mst_mgr); |
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drm_dp_mst_deallocate_vcpi(&radeon_connector->mst_port->mst_mgr, mst_enc->port); |
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mst_enc->enc_active = false; |
radeon_dp_mst_update_stream_attribs(radeon_connector->mst_port, primary); |
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radeon_dp_mst_set_be_cntl(primary, mst_enc, |
radeon_connector->mst_port->hpd.hpd, false); |
atombios_dig_encoder_setup2(&primary->base, ATOM_ENCODER_CMD_DP_VIDEO_OFF, 0, |
mst_enc->fe); |
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if (!mst_enc->fe_from_be) |
radeon_atom_release_dig_encoder(rdev, mst_enc->fe); |
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mst_enc->fe_from_be = false; |
dig_enc->active_mst_links--; |
if (dig_enc->active_mst_links == 0) { |
/* drop link */ |
} |
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break; |
} |
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} |
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static bool radeon_mst_mode_fixup(struct drm_encoder *encoder, |
const struct drm_display_mode *mode, |
struct drm_display_mode *adjusted_mode) |
{ |
struct radeon_encoder_mst *mst_enc; |
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
int bpp = 24; |
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mst_enc = radeon_encoder->enc_priv; |
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mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp); |
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mst_enc->primary->active_device = mst_enc->primary->devices & mst_enc->connector->devices; |
DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n", |
mst_enc->primary->active_device, mst_enc->primary->devices, |
mst_enc->connector->devices, mst_enc->primary->base.encoder_type); |
|
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drm_mode_set_crtcinfo(adjusted_mode, 0); |
{ |
struct radeon_connector_atom_dig *dig_connector; |
|
dig_connector = mst_enc->connector->con_priv; |
dig_connector->dp_lane_count = drm_dp_max_lane_count(dig_connector->dpcd); |
dig_connector->dp_clock = radeon_dp_get_max_link_rate(&mst_enc->connector->base, |
dig_connector->dpcd); |
DRM_DEBUG_KMS("dig clock %p %d %d\n", dig_connector, |
dig_connector->dp_lane_count, dig_connector->dp_clock); |
} |
return true; |
} |
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static void radeon_mst_encoder_prepare(struct drm_encoder *encoder) |
{ |
struct radeon_connector *radeon_connector; |
struct radeon_encoder *radeon_encoder, *primary; |
struct radeon_encoder_mst *mst_enc; |
struct radeon_encoder_atom_dig *dig_enc; |
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radeon_connector = radeon_mst_find_connector(encoder); |
if (!radeon_connector) { |
DRM_DEBUG_KMS("failed to find connector %p\n", encoder); |
return; |
} |
radeon_encoder = to_radeon_encoder(encoder); |
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radeon_mst_encoder_dpms(encoder, DRM_MODE_DPMS_OFF); |
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mst_enc = radeon_encoder->enc_priv; |
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primary = mst_enc->primary; |
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dig_enc = primary->enc_priv; |
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mst_enc->port = radeon_connector->port; |
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if (dig_enc->dig_encoder == -1) { |
dig_enc->dig_encoder = radeon_atom_pick_dig_encoder(&primary->base, -1); |
primary->offset = radeon_atom_set_enc_offset(dig_enc->dig_encoder); |
atombios_set_mst_encoder_crtc_source(encoder, dig_enc->dig_encoder); |
|
|
} |
DRM_DEBUG_KMS("%d %d\n", dig_enc->dig_encoder, primary->offset); |
} |
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static void |
radeon_mst_encoder_mode_set(struct drm_encoder *encoder, |
struct drm_display_mode *mode, |
struct drm_display_mode *adjusted_mode) |
{ |
DRM_DEBUG_KMS("\n"); |
} |
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static void radeon_mst_encoder_commit(struct drm_encoder *encoder) |
{ |
radeon_mst_encoder_dpms(encoder, DRM_MODE_DPMS_ON); |
DRM_DEBUG_KMS("\n"); |
} |
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static const struct drm_encoder_helper_funcs radeon_mst_helper_funcs = { |
.dpms = radeon_mst_encoder_dpms, |
.mode_fixup = radeon_mst_mode_fixup, |
.prepare = radeon_mst_encoder_prepare, |
.mode_set = radeon_mst_encoder_mode_set, |
.commit = radeon_mst_encoder_commit, |
}; |
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void radeon_dp_mst_encoder_destroy(struct drm_encoder *encoder) |
{ |
drm_encoder_cleanup(encoder); |
kfree(encoder); |
} |
|
static const struct drm_encoder_funcs radeon_dp_mst_enc_funcs = { |
.destroy = radeon_dp_mst_encoder_destroy, |
}; |
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static struct radeon_encoder * |
radeon_dp_create_fake_mst_encoder(struct radeon_connector *connector) |
{ |
struct drm_device *dev = connector->base.dev; |
struct radeon_device *rdev = dev->dev_private; |
struct radeon_encoder *radeon_encoder; |
struct radeon_encoder_mst *mst_enc; |
struct drm_encoder *encoder; |
const struct drm_connector_helper_funcs *connector_funcs = connector->base.helper_private; |
struct drm_encoder *enc_master = connector_funcs->best_encoder(&connector->base); |
|
DRM_DEBUG_KMS("enc master is %p\n", enc_master); |
radeon_encoder = kzalloc(sizeof(*radeon_encoder), GFP_KERNEL); |
if (!radeon_encoder) |
return NULL; |
|
radeon_encoder->enc_priv = kzalloc(sizeof(*mst_enc), GFP_KERNEL); |
if (!radeon_encoder->enc_priv) { |
kfree(radeon_encoder); |
return NULL; |
} |
encoder = &radeon_encoder->base; |
switch (rdev->num_crtc) { |
case 1: |
encoder->possible_crtcs = 0x1; |
break; |
case 2: |
default: |
encoder->possible_crtcs = 0x3; |
break; |
case 4: |
encoder->possible_crtcs = 0xf; |
break; |
case 6: |
encoder->possible_crtcs = 0x3f; |
break; |
} |
|
drm_encoder_init(dev, &radeon_encoder->base, &radeon_dp_mst_enc_funcs, |
DRM_MODE_ENCODER_DPMST); |
drm_encoder_helper_add(encoder, &radeon_mst_helper_funcs); |
|
mst_enc = radeon_encoder->enc_priv; |
mst_enc->connector = connector; |
mst_enc->primary = to_radeon_encoder(enc_master); |
radeon_encoder->is_mst_encoder = true; |
return radeon_encoder; |
} |
|
int |
radeon_dp_mst_init(struct radeon_connector *radeon_connector) |
{ |
struct drm_device *dev = radeon_connector->base.dev; |
|
if (!radeon_connector->ddc_bus->has_aux) |
return 0; |
|
radeon_connector->mst_mgr.cbs = &mst_cbs; |
return drm_dp_mst_topology_mgr_init(&radeon_connector->mst_mgr, dev->dev, |
&radeon_connector->ddc_bus->aux, 16, 6, |
radeon_connector->base.base.id); |
} |
|
int |
radeon_dp_mst_probe(struct radeon_connector *radeon_connector) |
{ |
struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; |
struct drm_device *dev = radeon_connector->base.dev; |
struct radeon_device *rdev = dev->dev_private; |
int ret; |
u8 msg[1]; |
|
if (!radeon_mst) |
return 0; |
|
if (!ASIC_IS_DCE5(rdev)) |
return 0; |
|
if (dig_connector->dpcd[DP_DPCD_REV] < 0x12) |
return 0; |
|
ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_MSTM_CAP, msg, |
1); |
if (ret) { |
if (msg[0] & DP_MST_CAP) { |
DRM_DEBUG_KMS("Sink is MST capable\n"); |
dig_connector->is_mst = true; |
} else { |
DRM_DEBUG_KMS("Sink is not MST capable\n"); |
dig_connector->is_mst = false; |
} |
|
} |
drm_dp_mst_topology_mgr_set_mst(&radeon_connector->mst_mgr, |
dig_connector->is_mst); |
return dig_connector->is_mst; |
} |
|
int |
radeon_dp_mst_check_status(struct radeon_connector *radeon_connector) |
{ |
struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; |
int retry; |
|
if (dig_connector->is_mst) { |
u8 esi[16] = { 0 }; |
int dret; |
int ret = 0; |
bool handled; |
|
dret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, |
DP_SINK_COUNT_ESI, esi, 8); |
go_again: |
if (dret == 8) { |
DRM_DEBUG_KMS("got esi %02x %02x %02x\n", esi[0], esi[1], esi[2]); |
ret = drm_dp_mst_hpd_irq(&radeon_connector->mst_mgr, esi, &handled); |
|
if (handled) { |
for (retry = 0; retry < 3; retry++) { |
int wret; |
wret = drm_dp_dpcd_write(&radeon_connector->ddc_bus->aux, |
DP_SINK_COUNT_ESI + 1, &esi[1], 3); |
if (wret == 3) |
break; |
} |
|
dret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, |
DP_SINK_COUNT_ESI, esi, 8); |
if (dret == 8) { |
DRM_DEBUG_KMS("got esi2 %02x %02x %02x\n", esi[0], esi[1], esi[2]); |
goto go_again; |
} |
} else |
ret = 0; |
|
return ret; |
} else { |
DRM_DEBUG_KMS("failed to get ESI - device may have failed %d\n", ret); |
dig_connector->is_mst = false; |
drm_dp_mst_topology_mgr_set_mst(&radeon_connector->mst_mgr, |
dig_connector->is_mst); |
/* send a hotplug event */ |
} |
} |
return -EINVAL; |
} |
|
#if defined(CONFIG_DEBUG_FS) |
|
static int radeon_debugfs_mst_info(struct seq_file *m, void *data) |
{ |
struct drm_info_node *node = (struct drm_info_node *)m->private; |
struct drm_device *dev = node->minor->dev; |
struct drm_connector *connector; |
struct radeon_connector *radeon_connector; |
struct radeon_connector_atom_dig *dig_connector; |
int i; |
|
drm_modeset_lock_all(dev); |
list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) |
continue; |
|
radeon_connector = to_radeon_connector(connector); |
dig_connector = radeon_connector->con_priv; |
if (radeon_connector->is_mst_connector) |
continue; |
if (!dig_connector->is_mst) |
continue; |
drm_dp_mst_dump_topology(m, &radeon_connector->mst_mgr); |
|
for (i = 0; i < radeon_connector->enabled_attribs; i++) |
seq_printf(m, "attrib %d: %d %d\n", i, |
radeon_connector->cur_stream_attribs[i].fe, |
radeon_connector->cur_stream_attribs[i].slots); |
} |
drm_modeset_unlock_all(dev); |
return 0; |
} |
|
static struct drm_info_list radeon_debugfs_mst_list[] = { |
{"radeon_mst_info", &radeon_debugfs_mst_info, 0, NULL}, |
}; |
#endif |
|
int radeon_mst_debugfs_init(struct radeon_device *rdev) |
{ |
#if defined(CONFIG_DEBUG_FS) |
return radeon_debugfs_add_files(rdev, radeon_debugfs_mst_list, 1); |
#endif |
return 0; |
} |