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| author | Dave Airlie <airlied@redhat.com> | 2017-10-09 11:21:15 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-10-09 11:21:15 +1000 |
| commit | b9e56e41e0c55c2b2ab5919c5e167faa4200b083 (patch) | |
| tree | 8b580cf1e412a1c7078fe75994d3effeb297bfc3 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | |
| parent | bb7a9c8d712f37385a706a594d6edf6e6d2669d0 (diff) | |
| parent | 8ee5702afdd48b5864c46418ad310d6a23c8e9ab (diff) | |
| download | linux-b9e56e41e0c55c2b2ab5919c5e167faa4200b083.tar.gz linux-b9e56e41e0c55c2b2ab5919c5e167faa4200b083.tar.bz2 linux-b9e56e41e0c55c2b2ab5919c5e167faa4200b083.zip | |
Merge branch 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux into drm-next
Initial pull request for DC support. We've completed a substantial amount of
the cleanup and restructuring in our TODO. There are a few additional
cleanups that we are continuing to work on, but I don't think there are any
showstoppers remaining. We've tried to maintain most of the history for bisect
purposes. Harry made sure all the commits build. We've enabled DC for vega10
and Raven. Pre-vega10 parts can be enabled via module parameter (amdgpu.dc=1),
but are not enabled by default at this point until we get further testing
upstream.
This code provides atomic modesetting support for DCE8 (CIK), DCE10 (Tonga,
Fiji), DCE11 (CZ, ST, Polaris), DCE12 (vega10), and DCN1 (RV) including
HDMI and DP audio, DP MST, and many other advanced display features.
+
Latest cleanups for DC from you and Harry. Note that there is some
flickering on some older asics with this branch due to a regression in powerplay
that has already been fixed and will be included in my next non-DC pull request
next week.
* 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux: (897 commits)
amdgpu/dc: use kref for dc_state.
amdgpu/dc: convert dc_sink to kref.
amdgpu/dc: convert dc_stream_state to kref.
amdgpu/dc: use kref for dc_plane_state.
amdgpu/dc: convert dc_gamma to kref reference counting.
amdgpu/dc: convert dc_transfer to use a kref.
amdgpu/dc: kill a bunch of dead code.
amdgpu/dc: set a bunch of functions to static.
amdgpu/dc: kill some deadcode in dc core.
amdgpu/dc: fix indentation on a couple of returns.
amdgpu/dm: don't use after free.
amdgpu/dc: kfree already checks for NULL.
amdgpu/dc: fix a bunch of misc whitespace.
amdgpu/dc: drop hw_sequencer_types.h
amdgpu/dc: drop dce110_types.h
amdgpu/dc: use kernel ilog2 for log_2.
amdgpu/dc: don't memset after kzalloc.
amdgpu/dc: inline dal grph object id functions.
amdgpu/dc: inline dml_round_to_multiple
amdgpu/dc: rename bios get_image symbol to something more searchable.
...
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 498 |
1 files changed, 498 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c new file mode 100644 index 000000000000..9bd142f65f9b --- /dev/null +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -0,0 +1,498 @@ +/* + * Copyright 2015 Advanced Micro Devices, 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: AMD + * + */ + +#include <linux/string.h> +#include <linux/acpi.h> +#include <linux/version.h> +#include <linux/i2c.h> + +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/amdgpu_drm.h> +#include <drm/drm_edid.h> + +#include "dm_services.h" +#include "amdgpu.h" +#include "dc.h" +#include "amdgpu_dm.h" +#include "amdgpu_dm_irq.h" + +#include "dm_helpers.h" + +/* dm_helpers_parse_edid_caps + * + * Parse edid caps + * + * @edid: [in] pointer to edid + * edid_caps: [in] pointer to edid caps + * @return + * void + * */ +enum dc_edid_status dm_helpers_parse_edid_caps( + struct dc_context *ctx, + const struct dc_edid *edid, + struct dc_edid_caps *edid_caps) +{ + struct edid *edid_buf = (struct edid *) edid->raw_edid; + struct cea_sad *sads; + int sad_count = -1; + int sadb_count = -1; + int i = 0; + int j = 0; + uint8_t *sadb = NULL; + + enum dc_edid_status result = EDID_OK; + + if (!edid_caps || !edid) + return EDID_BAD_INPUT; + + if (!drm_edid_is_valid(edid_buf)) + result = EDID_BAD_CHECKSUM; + + edid_caps->manufacturer_id = (uint16_t) edid_buf->mfg_id[0] | + ((uint16_t) edid_buf->mfg_id[1])<<8; + edid_caps->product_id = (uint16_t) edid_buf->prod_code[0] | + ((uint16_t) edid_buf->prod_code[1])<<8; + edid_caps->serial_number = edid_buf->serial; + edid_caps->manufacture_week = edid_buf->mfg_week; + edid_caps->manufacture_year = edid_buf->mfg_year; + + /* One of the four detailed_timings stores the monitor name. It's + * stored in an array of length 13. */ + for (i = 0; i < 4; i++) { + if (edid_buf->detailed_timings[i].data.other_data.type == 0xfc) { + while (j < 13 && edid_buf->detailed_timings[i].data.other_data.data.str.str[j]) { + if (edid_buf->detailed_timings[i].data.other_data.data.str.str[j] == '\n') + break; + + edid_caps->display_name[j] = + edid_buf->detailed_timings[i].data.other_data.data.str.str[j]; + j++; + } + } + } + + edid_caps->edid_hdmi = drm_detect_hdmi_monitor( + (struct edid *) edid->raw_edid); + + sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads); + if (sad_count <= 0) { + DRM_INFO("SADs count is: %d, don't need to read it\n", + sad_count); + return result; + } + + edid_caps->audio_mode_count = sad_count < DC_MAX_AUDIO_DESC_COUNT ? sad_count : DC_MAX_AUDIO_DESC_COUNT; + for (i = 0; i < edid_caps->audio_mode_count; ++i) { + struct cea_sad *sad = &sads[i]; + + edid_caps->audio_modes[i].format_code = sad->format; + edid_caps->audio_modes[i].channel_count = sad->channels; + edid_caps->audio_modes[i].sample_rate = sad->freq; + edid_caps->audio_modes[i].sample_size = sad->byte2; + } + + sadb_count = drm_edid_to_speaker_allocation((struct edid *) edid->raw_edid, &sadb); + + if (sadb_count < 0) { + DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sadb_count); + sadb_count = 0; + } + + if (sadb_count) + edid_caps->speaker_flags = sadb[0]; + else + edid_caps->speaker_flags = DEFAULT_SPEAKER_LOCATION; + + kfree(sads); + kfree(sadb); + + return result; +} + +static void get_payload_table( + struct amdgpu_dm_connector *aconnector, + struct dp_mst_stream_allocation_table *proposed_table) +{ + int i; + struct drm_dp_mst_topology_mgr *mst_mgr = + &aconnector->mst_port->mst_mgr; + + mutex_lock(&mst_mgr->payload_lock); + + proposed_table->stream_count = 0; + + /* number of active streams */ + for (i = 0; i < mst_mgr->max_payloads; i++) { + if (mst_mgr->payloads[i].num_slots == 0) + break; /* end of vcp_id table */ + + ASSERT(mst_mgr->payloads[i].payload_state != + DP_PAYLOAD_DELETE_LOCAL); + + if (mst_mgr->payloads[i].payload_state == DP_PAYLOAD_LOCAL || + mst_mgr->payloads[i].payload_state == + DP_PAYLOAD_REMOTE) { + + struct dp_mst_stream_allocation *sa = + &proposed_table->stream_allocations[ + proposed_table->stream_count]; + + sa->slot_count = mst_mgr->payloads[i].num_slots; + sa->vcp_id = mst_mgr->proposed_vcpis[i]->vcpi; + proposed_table->stream_count++; + } + } + + mutex_unlock(&mst_mgr->payload_lock); +} + +/* + * Writes payload allocation table in immediate downstream device. + */ +bool dm_helpers_dp_mst_write_payload_allocation_table( + struct dc_context *ctx, + const struct dc_stream_state *stream, + struct dp_mst_stream_allocation_table *proposed_table, + bool enable) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_dp_mst_topology_mgr *mst_mgr; + struct drm_dp_mst_port *mst_port; + int slots = 0; + bool ret; + int clock; + int bpp = 0; + int pbn = 0; + + aconnector = stream->sink->priv; + + if (!aconnector || !aconnector->mst_port) + return false; + + mst_mgr = &aconnector->mst_port->mst_mgr; + + if (!mst_mgr->mst_state) + return false; + + mst_port = aconnector->port; + + if (enable) { + clock = stream->timing.pix_clk_khz; + + switch (stream->timing.display_color_depth) { + + case COLOR_DEPTH_666: + bpp = 6; + break; + case COLOR_DEPTH_888: + bpp = 8; + break; + case COLOR_DEPTH_101010: + bpp = 10; + break; + case COLOR_DEPTH_121212: + bpp = 12; + break; + case COLOR_DEPTH_141414: + bpp = 14; + break; + case COLOR_DEPTH_161616: + bpp = 16; + break; + default: + ASSERT(bpp != 0); + break; + } + + bpp = bpp * 3; + + /* TODO need to know link rate */ + + pbn = drm_dp_calc_pbn_mode(clock, bpp); + + slots = drm_dp_find_vcpi_slots(mst_mgr, pbn); + ret = drm_dp_mst_allocate_vcpi(mst_mgr, mst_port, pbn, slots); + + if (!ret) + return false; + + } else { + drm_dp_mst_reset_vcpi_slots(mst_mgr, mst_port); + } + + ret = drm_dp_update_payload_part1(mst_mgr); + + /* mst_mgr->->payloads are VC payload notify MST branch using DPCD or + * AUX message. The sequence is slot 1-63 allocated sequence for each + * stream. AMD ASIC stream slot allocation should follow the same + * sequence. copy DRM MST allocation to dc */ + + get_payload_table(aconnector, proposed_table); + + if (ret) + return false; + + return true; +} + +/* + * Polls for ACT (allocation change trigger) handled and sends + * ALLOCATE_PAYLOAD message. + */ +bool dm_helpers_dp_mst_poll_for_allocation_change_trigger( + struct dc_context *ctx, + const struct dc_stream_state *stream) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_dp_mst_topology_mgr *mst_mgr; + int ret; + + aconnector = stream->sink->priv; + + if (!aconnector || !aconnector->mst_port) + return false; + + mst_mgr = &aconnector->mst_port->mst_mgr; + + if (!mst_mgr->mst_state) + return false; + + ret = drm_dp_check_act_status(mst_mgr); + + if (ret) + return false; + + return true; +} + +bool dm_helpers_dp_mst_send_payload_allocation( + struct dc_context *ctx, + const struct dc_stream_state *stream, + bool enable) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_dp_mst_topology_mgr *mst_mgr; + struct drm_dp_mst_port *mst_port; + int ret; + + aconnector = stream->sink->priv; + + if (!aconnector || !aconnector->mst_port) + return false; + + mst_port = aconnector->port; + + mst_mgr = &aconnector->mst_port->mst_mgr; + + if (!mst_mgr->mst_state) + return false; + + ret = drm_dp_update_payload_part2(mst_mgr); + + if (ret) + return false; + + if (!enable) + drm_dp_mst_deallocate_vcpi(mst_mgr, mst_port); + + return true; +} + +bool dm_helpers_dc_conn_log(struct dc_context *ctx, struct log_entry *entry, enum dc_log_type event) +{ + return true; +} + +void dm_dtn_log_begin(struct dc_context *ctx) +{} + +void dm_dtn_log_append_v(struct dc_context *ctx, + const char *pMsg, ...) +{} + +void dm_dtn_log_end(struct dc_context *ctx) +{} + +bool dm_helpers_dp_mst_start_top_mgr( + struct dc_context *ctx, + const struct dc_link *link, + bool boot) +{ + struct amdgpu_dm_connector *aconnector = link->priv; + + if (!aconnector) { + DRM_ERROR("Failed to found connector for link!"); + return false; + } + + if (boot) { + DRM_INFO("DM_MST: Differing MST start on aconnector: %p [id: %d]\n", + aconnector, aconnector->base.base.id); + return true; + } + + DRM_INFO("DM_MST: starting TM on aconnector: %p [id: %d]\n", + aconnector, aconnector->base.base.id); + + return (drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true) == 0); +} + +void dm_helpers_dp_mst_stop_top_mgr( + struct dc_context *ctx, + const struct dc_link *link) +{ + struct amdgpu_dm_connector *aconnector = link->priv; + + if (!aconnector) { + DRM_ERROR("Failed to found connector for link!"); + return; + } + + DRM_INFO("DM_MST: stopping TM on aconnector: %p [id: %d]\n", + aconnector, aconnector->base.base.id); + + if (aconnector->mst_mgr.mst_state == true) + drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, false); +} + +bool dm_helpers_dp_read_dpcd( + struct dc_context *ctx, + const struct dc_link *link, + uint32_t address, + uint8_t *data, + uint32_t size) +{ + + struct amdgpu_dm_connector *aconnector = link->priv; + + if (!aconnector) { + DRM_ERROR("Failed to found connector for link!"); + return false; + } + + return drm_dp_dpcd_read(&aconnector->dm_dp_aux.aux, address, + data, size) > 0; +} + +bool dm_helpers_dp_write_dpcd( + struct dc_context *ctx, + const struct dc_link *link, + uint32_t address, + const uint8_t *data, + uint32_t size) +{ + struct amdgpu_dm_connector *aconnector = link->priv; + + if (!aconnector) { + DRM_ERROR("Failed to found connector for link!"); + return false; + } + + return drm_dp_dpcd_write(&aconnector->dm_dp_aux.aux, + address, (uint8_t *)data, size) > 0; +} + +bool dm_helpers_submit_i2c( + struct dc_context *ctx, + const struct dc_link *link, + struct i2c_command *cmd) +{ + struct amdgpu_dm_connector *aconnector = link->priv; + struct i2c_msg *msgs; + int i = 0; + int num = cmd->number_of_payloads; + bool result; + + if (!aconnector) { + DRM_ERROR("Failed to found connector for link!"); + return false; + } + + msgs = kzalloc(num * sizeof(struct i2c_msg), GFP_KERNEL); + + if (!msgs) + return false; + + for (i = 0; i < num; i++) { + msgs[i].flags = cmd->payloads[i].write ? 0 : I2C_M_RD; + msgs[i].addr = cmd->payloads[i].address; + msgs[i].len = cmd->payloads[i].length; + msgs[i].buf = cmd->payloads[i].data; + } + + result = i2c_transfer(&aconnector->i2c->base, msgs, num) == num; + + kfree(msgs); + + return result; +} + +enum dc_edid_status dm_helpers_read_local_edid( + struct dc_context *ctx, + struct dc_link *link, + struct dc_sink *sink) +{ + struct amdgpu_dm_connector *aconnector = link->priv; + struct i2c_adapter *ddc; + int retry = 3; + enum dc_edid_status edid_status; + struct edid *edid; + + if (link->aux_mode) + ddc = &aconnector->dm_dp_aux.aux.ddc; + else + ddc = &aconnector->i2c->base; + + /* some dongles read edid incorrectly the first time, + * do check sum and retry to make sure read correct edid. + */ + do { + + edid = drm_get_edid(&aconnector->base, ddc); + + if (!edid) + return EDID_NO_RESPONSE; + + sink->dc_edid.length = EDID_LENGTH * (edid->extensions + 1); + memmove(sink->dc_edid.raw_edid, (uint8_t *)edid, sink->dc_edid.length); + + /* We don't need the original edid anymore */ + kfree(edid); + + edid_status = dm_helpers_parse_edid_caps( + ctx, + &sink->dc_edid, + &sink->edid_caps); + + } while (edid_status == EDID_BAD_CHECKSUM && --retry > 0); + + if (edid_status != EDID_OK) + DRM_ERROR("EDID err: %d, on connector: %s", + edid_status, + aconnector->base.name); + + return edid_status; +} |