amdgpu_dm_get_output_color_space() applies the Broadcast RGB connector
property to default RGB output, but always selects full-range output for
BT.2020 RGB. Consequently, explicitly selecting Limited has no effect on
the output CSC or AVI InfoFrame when HDR uses BT.2020 RGB.
Select COLOR_SPACE_2020_RGB_LIMITEDRANGE when the output encoding is RGB
and Broadcast RGB is Limited. Keep Automatic and Full at full range, and
leave YCbCr output unchanged.
Add KUnit coverage for limited-range RGB output through both BT.2020
connector colorspace values.
Fixes: 6eb4c13a38 ("drm/amd/display: Support "Broadcast RGB" drm property")
Signed-off-by: Satyajit Roy <sroy14@alum.utk.edu>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
DC uses dc_edid_caps.qs_bit when constructing the HDMI AVI InfoFrame
quantization-range field. Although DRM parses the sink capability into
drm_display_info, DM never copies it into the DC EDID capabilities. The
field therefore remains zero and the AVI quantization range stays at its
default value.
Copy rgb_quant_range_selectable for HDMI sinks and extend the existing
EDID-capability KUnit test to cover it.
Fixes: 6eb4c13a38 ("drm/amd/display: Support "Broadcast RGB" drm property")
Signed-off-by: Satyajit Roy <sroy14@alum.utk.edu>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This reverts commit c119d05a36.
It removes the newline even when there are no fences attached to a
struct dma_resv, leading to multiple BOs being output on the same line,
making the debug file less readable, not more as the commit intended.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
gfx_v8_0_init_microcode() allocates rlc.register_list_format before
loading the MEC firmware.
If loading one of the subsequent firmware files fails, the function
returns through the error path without freeing register_list_format.
Use gfx_v8_0_free_microcode() in the error path so all previously
allocated firmware resources, including register_list_format, are
released.
Signed-off-by: Willian Oliveira <williandossantosdeoliveira287@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This is now set for all GMC 12.x variants in
early_init() so drop the duplicate setting.
Reviewed-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If sending TLB shootdown to a remote GPU fails, reset the connection and
mark the connection as NOT_READY.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
On the LSDMA path amdgpu_ualink_send_command() ignored the return of
amdgpu_lsdma_copy_mem() and polled the remote completion for the full
timeout even when the copy failed. With a peer down, every NPA-REVOKE
send in amdgpu_ualink_exp_cleanup_worker() wasted ~2s, and the peer
stayed ESTABLISHED so each subsequent handle cleanup timed out again,
piling up past the 120s hung-task threshold.
Return immediately when an LSDMA copy fails, and mark the connection
NOT_READY on a failed revoke send so other cleanups skip the unreachable
peer via amdgpu_ualink_check_conn_ready().
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If the userq doesn't support in a system. then there's no
valid userq_doorbell_xa entry to walk over and then has a
no-op.
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
A hung SDMA user queue wedges MES, so the MES packet reset times out and
falls back to a full MODE1 reset - once per in-flight job, a reset storm.
The queue is still on its HW slot at the first hang-detect, so use
detect_hung_queue to recover its slot from the doorbell and reset it over
MMIO, which does not need MES. Mark it HUNG (not UNMAPPED) so the restore
worker does not re-map and re-run the guilty job, and short-circuit the
per-fence hang-detect re-entry once the queue is already reset.
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Match each SDMA queue's DOORBELL_OFFSET register against the given
doorbell to recover its (instance, queue_id) HW slot. The per-queue
register stride is derived from the named QUEUE0/QUEUE1 registers.
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Match each SDMA queue's DOORBELL_OFFSET register against the given
doorbell to recover its (instance, queue_id) HW slot. The per-queue
register stride is derived from the named QUEUE0/QUEUE1 registers.
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
GFX 12.1.0 queues are managed by MES, not by the HWS runlist, so the
127 queue limit does not apply.
The topology advertises 32 CP queues plus 16 SDMA engines with 6 queues
each, so creating every queue needs 128 and the last one fails with
-ENOSPC.
Signed-off-by: Horatio Zhang <hongkun.zhang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add an optional per-IP callback that maps a user queue's doorbell index
to its HW slot (instance, queue_id). It is needed to reset a hung SDMA
user queue over MMIO, since struct amdgpu_usermode_queue does not store
its HW slot.
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This version brings along the following updates:
- Ensure requested LSDMA bandwidth stays within the SOP bound.
- Refactor DC_SEND_CURSOR_INFO_TO_DMU to drop the pipe_ctx param.
- Add an override for LSDMA bandwidth in the QoS table.
- Expand amdgpu_dm KUnit coverage across vblank IRQ, self-refresh, GPU
reset, plane update, MST resume, cached suspend state, writeback
transitions, atomic validation, connector-state restore, EDID CEA
parsing and DM IRQ source handling.
- Keep streamclk gating off when enabling streamclk.
- Remove unnecessary includes.
- Set mpc_tree_params->opp_id during OPP resource construct.
- Add override capability for UTM table params.
- Add immediate restore to FAMS2 for DRR.
- Fix missing APG registers for DCN60 HDMI.
- Exit IPS before connector detection on resume.
- Fix HF-VSDB DSC bpc detection to be cumulative.
- Fix unused params in flip schedule.
- Enable the FW locality check in DCN6.
- Fix DC Hub reference frequency assert range.
- Dump clock registers in HW init instead of SW init.
- Validate the IRQ source in the DM IRQ handler.
- Revert "Fix CalculateFlipSchedule Calculation".
- Assorted DML updates.
- Update urgent burst calculation to account for unbounded requests.
- Add a stressed peak-bandwidth probe with DMA contention.
- Revert "Unify CalculateFlipSchedule Logic".
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
In cm3_helper_translate_curve_to_degamma_hw_format(), seg_distr[] and
the loop counter k are uint32_t, while -1, region_start/region_end and
i are signed. Comparing them relies on implicit integer conversions,
which some compilers diagnose and which obscures the intent of the
comparisons.
[How]
Add explicit casts so the signedness of each comparison is stated in
the code. No functional change.
Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
amdgpu_dm_update_freesync_state_on_stream() keyed the VTEM guard off
new_stream->sink->sink_signal, but new_stream->sink can be NULL, leading
to a NULL pointer dereference.
Use new_stream->signal instead, which is a direct field of the already
validated new_stream and carries the same HDMI signal type. This matches
the ALLM block in the same function, which already uses new_stream->signal.
Fixes: 640fd039dc ("drm/amd/display: Emit VTEM for HF-VSDB VRR on TMDS links")
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Update fields used for mode support.
Also expose some functions so they can be re-used for future products
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
dml2_core_dcn6_funcs_mode_programming.c called DCN5 and DCN6
calcs functions directly by name, coupling the mode programming
flow to specific generations. Routing through the calcs table
lets a future core generation reuse this flow without editing it.
[How]
Add a static get_calcs(ctx) helper returning ctx->calcs->dcn6.
Replace every direct dcn5_*/dcn6_* calcs call with
get_calcs(ctx)->slot(...). dcn6_populate_mode_programming() did
not previously receive the mp context, so thread
calc_mp_ctx through it to reach get_calcs() for its three calcs
calls. Assign ctx->calcs from core->calcs in
dcn6_mp_build_calculate_mp_context(). Drop the now-unused
dml2_core_dcn5_calcs_dchub.h, dml2_core_dcn5_calcs_display_pipe.h,
and dml2_core_dcn6_calcs_dchub.h includes in favor of
dml2_core_dcn6_calcs.h.
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
dml2_core_dcn6_funcs_mode_support.c called DCN5 and DCN6 calcs
functions directly by name, coupling the mode support flow to
specific generations. Routing through the calcs table lets a
future core generation reuse this flow without editing it.
[How]
Add a static get_calcs(ctx) helper returning ctx->calcs->dcn6.
Replace every direct dcn5_*/dcn6_* calcs call with
get_calcs(ctx)->slot(...). Assign calc_ms_ctx->calcs from
core->calcs when the context is built. Drop the now-unused
dml2_core_dcn5_calcs_dchub.h, dml2_core_dcn5_calcs_display_pipe.h,
and dml2_core_dcn6_calcs_dchub.h includes in favor of
dml2_core_dcn6_calcs.h.
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
DCN6 core mode support/programming call DCN5 and DCN6 calcs
functions directly by name. The calcs layer needs one seam the
funcs layer can go through instead of hardcoding a generation.
[How]
Add union dml2_core_calcs holding one function pointer table
per generation, plus a calcs field on dml2_core_instance and on
the mode support/programming contexts.
Add dml2_core_dcn6_calcs.c/.h defining struct
dml2_core_dcn6_calcs, a flat table covering every DCN6 calcs
function and every DCN5 calcs function DCN6 reuses, and
dml2_core_dcn6_calcs_init() to populate it.
Call dml2_core_dcn6_calcs_init() from
dml2_core_dcn6_funcs_initialize().
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
dcn5_calculate_urgent_burst_factor function is aware of unbounded
request mode making the buffer larger
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Revert commit 7bee763002 ("drm/amd/display: Fix CalculateFlipSchedule Calculation")
Because it causes some regression
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Add dm_test_irq_handler_invalid_source to cover the early return in
amdgpu_dm_irq_handler() when dc_interrupt_to_irq_source() cannot map the
hardware entry.
Reuse the existing unmapped irq_service stub and assert that neither the
high- nor the low-context handler is dispatched.
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
dc_interrupt_to_irq_source() can return DC_IRQ_SOURCE_INVALID for an
unmapped src_id/src_data pair. The value was passed straight to
dc_interrupt_ack() and used to index the DM high/low handler tables.
[How]
Reject sources outside the valid range before using them.
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
- Dumping clock registers in SW init can get incorrect clock readback due
to other init code (e.g., in DMU) potentially not executed yet
- Move clk_ip register access into HW init to ensure the clock read back
gets the correct values
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
The DC Hub reference frequency valid range was asserted incorrectly.
Correct the range to 20 to 50 MHz and update the comment accordingly.
Reviewed-by: Sridevi Arvindekar <sridevi.arvindekar@amd.com>
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Enable FW locality check in DCN6
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
dcn6_calculate_flip_schedule() no longer uses meta_row_height and
meta_row_height_chroma in any of its calculations, so both parameters
are flagged as unreferenced by compilers with stricter warning levels.
Cast both to void to document that they are intentionally unused. The
parameters are kept because the signature is fixed by the
shared function pointer.
Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
The HDMI Forum VSDB reports the maximum DSC color depth a sink supports.
This maximum is cumulative: a sink that reports 12 bpc also supports 10
and 8 bpc.
The previous code used exact "== 10" and "== 12" comparisons chained with
else-if, so a 12 bpc sink only set frl_dsc_12bpc and never set
frl_dsc_10bpc, incorrectly narrowing the DSC bpc range usable with that
sink.
Use ">= 10" and a separate ">= 12" check so a sink advertising a higher
maximum also enables the lower DSC bit depths it supports.
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
On resume, dm_resume() walks the connector list and, for each connector,
calls dc_link_detect_connection_type() at the top of the loop iteration
before the per-connector dc_exit_ips_for_hw_access() that sits in the
detection branch. There is no dc_exit_ips_for_hw_access() before the loop,
so the very first HW access relies on an earlier connector having already
taken the display out of IPS.
Commit d1d51519bc ("drm/amd/display: Skip eDP detection when no sink")
skips the eDP connector when no panel is present. On a DCN3.5 APU whose
eDP link has no sink, the eDP iteration - which used to bring the HW out
of IPS first - is now skipped, so a downstream DP connector becomes the
first one processed. Its initial DDC/AUX access then runs while the HW is
still idle, the AUX transfers time out (-ETIMEDOUT), and the EDID read
fails:
[drm:dm_helpers_read_local_edid [amdgpu]] *ERROR* EDID err: 2, on connector: DP-1
amdgpu: [drm] *ERROR* No EDID read.
Take the display out of IPS once before the detection loop so the first
connector processed no longer touches the AUX/DDC engine while the HW is
still in idle power state. This keeps the eDP-skip boot/resume
optimization while fixing the DP EDID read failure.
Fixes: d1d51519bc ("drm/amd/display: Skip eDP detection when no sink")
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Adds toggle to immediately restore FAMS2 streams instead of waiting for
DRR VTotal changes to latch
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Add calls for overriding UTM table params from PMFW. This is for
debug and test purposes only when PMFW has not yet populated the table
values correctly.
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Currently, init_pipes() is the only interface responsible for
initializing the OPP->MPCC resource for all pipes. However, during
seamless boot transitions, init_pipes() is skipped and we transition
directly to an ODM2:1 config where we end up programming the default SW
struct state of mpc_tree_params, which is 0. This results in a config
where both HUBP0 & HUBP1 are being fed into the same OPP inst, 0 in this
case.
This is purely a case of programming incorrect SW state initialization
values into HW, so fix this by initializing mpc_tree_params with the
correct instances during resource construct.
Reviewed-by: Michael Strauss <michael.strauss@amd.com>
Signed-off-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
These direct inclusions are unnecessary as the relevant headers
are taken care of by the broader inclusions in these files.
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
streamclk gating sequence update: disable streamclk gating when using
streamclk
Reviewed-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Add KUnit coverage for the EDID CEA extension parsing helpers
dm_edid_parser_send_cea(), parse_edid_cea_dmcu(), parse_edid_cea_dmub()
and parse_edid_cea(). Tests exercise the oversized-chunk rejection and
DMUB-unavailable paths of the send helper, the DMCU ack/VSDB branches
via a mock dmcu_funcs table, the DMUB empty/send-fail branches, and both
routing branches of parse_edid_cea().
Assisted-by: Copilot:Claude-Opus-4.8
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Add KUnit tests exercising every guard branch of
dm_restore_drm_connector_state(): the writeback short-circuit, a missing
dc_sink, a NULL connector atomic state, a NULL encoder, a crtc state
without a dc stream, and an unchanged sink that skips the forced atomic
commit.
Assisted-by: Copilot:Claude-Opus-4.8
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Add KUnit tests for an empty amdgpu_dm_atomic_check(), an unchanged
CRTC update, and a detached plane update.
[How]
Use standard DRM KUnit objects and existing state fixtures so each
helper reaches its software-only early return without DC hardware
programming.
Assisted-by: Copilot:Claude-Opus-5 GPT-5.6 Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Add KUnit tests for dm_clear_writeback() removing stream writeback
state and dm_set_writeback() leaving a job unarmed when no DC pipe
matches.
[How]
Use the real DC removal helper with a state-only update_bandwidth
fake, and construct the minimal DRM writeback objects needed to reach
the no-pipe cleanup path.
Assisted-by: Copilot:Claude-Opus-5 GPT-5.6 Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Peak-bandwidth-under-contention validation currently needs an
external tool to manufacture memory contention while querying
peak bandwidth. Expose this as an explicit probe variant so the
driver can generate that contention itself.
[How]
Add a new probe type that builds the same gated perfmon sequence
as the plain peak-BW probe, with a DMA copy of the current
surface into a scratch buffer inserted before the measurement
window to synthesize a competing memory client. Move the scratch
buffer fields onto the base resource pool struct instead of an
ASIC-specific subclass, and reject the probe with a new status
code when the buffer was never allocated. Also fixes a stack-
corruption bug where a local variable's address was captured by
a deferred callback and used after the local went out of scope,
and a missing NULL check on a similar output parameter used by
an early-return path.
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Add KUnit tests for dm_cache_state() covering successful caching
on an empty DRM device and propagation of an atomic suspend error.
[How]
Use the standard DRM KUnit device for the success path and the
shared DM ops table to inject the suspend failure.
Assisted-by: Copilot:Claude-Opus-5 GPT-5.6 Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Add KUnit tests for resume_mst_branch_status() without a primary
branch and s3_handle_mst() with an empty connector list.
[How]
Use the real topology mutex and DRM connector iterator. The tests
stop before AUX or topology-manager hardware operations are required.
Assisted-by: Copilot:Claude-Opus-5 GPT-5.6 Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Add KUnit tests for update_planes_and_stream_adapter() covering
descending plane sorting, argument forwarding, call ordering, and
DC failure propagation.
[How]
Extend the existing DM KUnit ops table with the two DC calls and use
spies to observe inputs and ordering. Reuse one ops installer for the
adapter and MMHUB tests.
Assisted-by: Copilot:Claude-Opus-5 GPT-5.6 Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Since PMFW does not yet populate LSDMA BW with correct values,
add an override interface for debug purposes until values are
populated correctly by PMFW.
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Add KUnit tests for dm_gpureset_toggle_interrupts() on DCN,
amdgpu_dm_commit_zero_streams() on an already empty DC state, and
dm_destroy_cached_state() without a cached state.
[How]
GRPH_PFLIP is unused on DCN, so only the vupdate interrupt is toggled
and no interrupt service is needed. An unchanged empty stream list makes
dc_commit_streams() return early.
Assisted-by: Copilot:Claude-Opus-5 GPT-5.6 Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
