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path: root/drivers/gpu/drm/amd/display
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2024-05-02drm/amd/display: Ensure index calculation will not overflowAlex Hung
[WHY & HOW] Make sure vmid0p72_idx, vnom0p8_idx and vmax0p9_idx calculation will never overflow and exceess array size. This fixes 3 OVERRUN and 1 INTEGER_OVERFLOW issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Skip plane when not found by stream idAlex Hung
[Why & How] dml_stream_idx will be -1 when it is not found. Check and skip in such a case as -1 is not a valid array index. This fixes a NEGATIVE_RETURNS issue reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Avoid overflow dc_clk_table->entries by limit to ↵Alex Hung
MAX_NUM_DPM_LVL [Why] dc_clk_table->entries has size of MAX_NUM_DPM_LVL(=8), but the loop counter i can go up to DML_MAX_CLK_TABLE_SIZE(=20) - 1. [How] The loop should be min(DML_MAX_CLK_TABLE_SIZE, MAX_NUM_DPM_LVL) - 1 instead. This fixes 21 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Fix Coverity INTEGER_OVERFLOW within ↵Hersen Wu
decide_fallback_link_setting_max_bw_policy [Why] For addtion (uint8_t) variable + constant 1, coverity generates message below: Truncation due to cast operation on "cur_idx + 1" from 32 to 8 bits. Then Coverity assume result is 32 bits value be saved into 8 bits variable. When result is used as index to access array, Coverity suspects index invalid. [How] Change varaible type to uint32_t. Reviewed-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Limit array index according to architectureAlex Hung
[WHY & HOW] ctx->architecture determine array sizes of ODMMode and DPPPerSurface arrays to __DML2_WRAPPER_MAX_STREAMS_PLANES__ or __DML_NUM_PLANES__, and these array index should be checked before used This fixes 2 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Spinlock before reading eventAlex Hung
[WHY & HOW] A read of acrtc_attach->base.state->event was not locked so moving it inside the spinlock. This fixes a LOCK_EVASION issue reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Limit clock assignments by size of clk tablesAlex Hung
[WHAT & HOW] Check clk table's array size to avoid out-of-bound memory accesses. This fixes two OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Release clck_src memory if clk_src_construct failsHersen Wu
[Why] Coverity reports RESOURCE_LEAK for some implemenations of clock_source_create. Do not release memory of clk_src if contructor fails. [How] Free clk_src if contructor fails. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Fix wrong array size dummy_boolean of ↵Hersen Wu
dml2_core_calcs_mode_support_locals [Why] Coverity reports OVERRUN warning for CalculateSwathAndDETConfiguration_params->hw_debug5 = &s->dummy_boolean[2]. bool dummy_boolean[2] is defined within struct dml2_core_calcs_mode_support_locals. [How] Change array size from 2 to 3. Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Add NULL pointer check for kzallocHersen Wu
[Why & How] Check return pointer of kzalloc before using it. Reviewed-by: Alex Hung <alex.hung@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Fix Coverity INTEGER_OVERFLOW within dal_gpio_service_createHersen Wu
[Why] For subtraction, coverity reports integer overflow warning message when variable type is uint32_t. [How] Change variable type to int32_t. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Fix Coverity INTERGER_OVERFLOW within construct_integrated_infoHersen Wu
[Why] For substrcation, coverity reports integer overflow warning message when variable type is uint32_t. [How] Change varaible type to int32_t. Reviewed-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Add otg_master NULL check within ↵Hersen Wu
resource_log_pipe_topology_update [Why] Coverity reports NULL_RETURN warning. [How] Add otg_master NULL check. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Check link_index before accessing dc->links[]Alex Hung
[WHY & HOW] dc->links[] has max size of MAX_LINKS and NULL is return when trying to access with out-of-bound index. This fixes 3 OVERRUN and 1 RESOURCE_LEAK issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Release state memory if amdgpu_dm_create_color_properties failHersen Wu
[Why] Coverity reports RESOURCE_LEAK warning. State memory is not released if dm_create_color_properties fail. [How] Call kfree(state) before return. Reviewed-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Check msg_id before processing transcationAlex Hung
[WHY & HOW] HDCP_MESSAGE_ID_INVALID (-1) is not a valid msg_id nor is it a valid array index, and it needs checking before used. This fixes 4 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Skip updating link encoder for unknown eng_idAlex Hung
This prevents accessing to negative index of link_encoders array. This fixes an OVERRUN issue reported by Coverity. Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[]Alex Hung
[WHY & HOW] num_valid_sets needs to be checked to avoid a negative index when accessing reader_wm_sets[num_valid_sets - 1]. This fixes an OVERRUN issue reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Add array index check for hdcp ddc accessHersen Wu
[Why] Coverity reports OVERRUN warning. Do not check if array index valid. [How] Check msg_id valid and valid array index. Reviewed-by: Alex Hung <alex.hung@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Add missing NULL pointer check within dpcd_extend_address_rangeHersen Wu
[Why & How] ASSERT if return NULL from kcalloc. Reviewed-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Check index for aux_rd_interval before usingAlex Hung
aux_rd_interval has size of 7 and should be checked. This fixes 3 OVERRUN and 1 INTEGER_OVERFLOW issues reported by Coverity. Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Fix incorrect size calculation for loopAlex Hung
[WHY] fe_clk_en has size of 5 but sizeof(fe_clk_en) has byte size 20 which is lager than the array size. [HOW] Divide byte size 20 by its element size. This fixes 2 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_linksHersen Wu
[Why] Coverity report OVERRUN warning. There are only max_links elements within dc->links. link count could up to AMDGPU_DM_MAX_DISPLAY_INDEX 31. [How] Make sure link count less than max_links. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Stop amdgpu_dm initialize when stream nums greater than 6Hersen Wu
[Why] Coverity reports OVERRUN warning. Should abort amdgpu_dm initialize. [How] Return failure to amdgpu_dm_init. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Add NULL pointer and OVERRUN check within amdgpu_dm irq ↵Hersen Wu
register [WHY] Coverity reports OVERRUN issues within amdgpu_dm interrupt registers. Do not check index value before access array. Do not check NULL pointer. [HOW] Add index value check for array. Add check for pointer from amdgpu_dm_irq_register_interrupt. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Check gpio_id before used as array indexAlex Hung
[WHY & HOW] GPIO_ID_UNKNOWN (-1) is not a valid value for array index and therefore should be checked in advance. This fixes 5 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Ensure array index tg_inst won't be -1Alex Hung
[WHY & HOW] tg_inst will be a negative if timing_generator_count equals 0, which should be checked before used. This fixes 2 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Skip accessing array for unknown eng_idAlex Hung
[WHY] ENGINE_ID_UNKNOWN (-1) is not a valid eng_id and not a valid array index. [HOW] Check whether eng_id is unknown to avoid access array with negative array index. This fixes 4 OVERRUN issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Refactor DCCG into component folderRevalla Hari Krishna
[why] cleaning up the code refactor requires dccg to be in its own component. [how] move all files under newly created dccg folder and fixing the makefiles. Reviewed-by: Martin Leung <martin.leung@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Revalla Hari Krishna <harikrishna.revalla@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Fix invalid Copyright noticeLeo Ma
[Why && How] Copyright notice failed in the Palamida scan and make changes to align with our guidelines. Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Leo Ma <hanghong.ma@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Remove redundant NULL check in dcn10_set_input_transfer_funcSrinivasan Shanmugam
This commit removes an unnecessary NULL check in the `dcn10_set_input_transfer_func` function in the `dcn10_hwseq.c` file. The variable `tf` is assigned the address of `plane_state->in_transfer_func` unconditionally, so it can never be `NULL`. Therefore, the check `if (tf == NULL)` is unnecessary and has been removed. Fixes the below smatch warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn10/dcn10_hwseq.c:1839 dcn10_set_input_transfer_func() warn: address of 'plane_state->in_transfer_func' is non-NULL Fixes: 285a7054bf81 ("drm/amd/display: Remove plane and stream pointers from dc scratch") Cc: Wenjing Liu <wenjing.liu@amd.com> Cc: Tom Chung <chiahsuan.chung@amd.com> Cc: Alvin Lee <alvin.lee2@amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Cc: Roman Li <roman.li@amd.com> Cc: Hersen Wu <hersenxs.wu@amd.com> Cc: Alex Hung <alex.hung@amd.com> Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Suggested-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Remove redundant NULL check in dce110_set_input_transfer_funcSrinivasan Shanmugam
This commit removes a redundant NULL check in the `dce110_set_input_transfer_func` function in the `dce110_hwseq.c` file. The variable `tf` is assigned the address of `plane_state->in_transfer_func` unconditionally, so it can never be `NULL`. Therefore, the check `if (tf == NULL)` is unnecessary and has been removed. Fixes the below smatch warning: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dce110/dce110_hwseq.c:301 dce110_set_input_transfer_func() warn: address of 'plane_state->in_transfer_func' is non-NULL Fixes: 285a7054bf81 ("drm/amd/display: Remove plane and stream pointers from dc scratch") Cc: Wenjing Liu <wenjing.liu@amd.com> Cc: Tom Chung <chiahsuan.chung@amd.com> Cc: Alvin Lee <alvin.lee2@amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Cc: Roman Li <roman.li@amd.com> Cc: Hersen Wu <hersenxs.wu@amd.com> Cc: Alex Hung <alex.hung@amd.com> Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Suggested-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: re-indent dc_power_down_on_boot()Dan Carpenter
These lines are indented too far. Clean the whitespace. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Fix spelling various spelling mistakesColin Ian King
There are various spelling mistakes in dml2_printf messages, fix them. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Avoid -Wenum-float-conversion in ↵Nathan Chancellor
add_margin_and_round_to_dfs_grainularity() When building with clang 19 or newer (which strengthened some of the enum conversion warnings for C), there is a warning (or error with CONFIG_WERROR=y) around doing arithmetic with an enumerated type and a floating point expression. drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml21/src/dml2_dpmm/dml2_dpmm_dcn4.c:181:58: error: arithmetic between enumeration type 'enum dentist_divider_range' and floating-point type 'double' [-Werror,-Wenum-float-conversion] 181 | divider = (unsigned int)(DFS_DIVIDER_RANGE_SCALE_FACTOR * (vco_freq_khz / clock_khz)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. This conversion is expected due to the nature of the enumerated value and definition, so silence the warning by casting the enumeration to an integer explicitly to make it clear to the compiler. Fixes: 70839da63605 ("drm/amd/display: Add new DCN401 sources") Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-02drm/amd/display: Disable panel replay by default for nowMario Limonciello
Panel replay was enabled by default in commit 5950efe25ee0 ("drm/amd/display: Enable Panel Replay for static screen use case"), but it isn't working properly at least on some BOE and AUO panels. Instead of being static the screen is solid black when active. As it's a new feature that was just introduced that regressed VRR disable it for now so that problem can be properly root caused. Cc: Tom Chung <chiahsuan.chung@amd.com> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3344 Fixes: 5950efe25ee0 ("drm/amd/display: Enable Panel Replay for static screen use case") Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-01drm/amd/display: Disable panel replay by default for nowMario Limonciello
Panel replay was enabled by default in commit 5950efe25ee0 ("drm/amd/display: Enable Panel Replay for static screen use case"), but it isn't working properly at least on some BOE and AUO panels. Instead of being static the screen is solid black when active. As it's a new feature that was just introduced that regressed VRR disable it for now so that problem can be properly root caused. Cc: Tom Chung <chiahsuan.chung@amd.com> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3344 Fixes: 5950efe25ee0 ("drm/amd/display: Enable Panel Replay for static screen use case") Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Disable seamless boot on 128b/132b encodingSung Joon Kim
[why] preOS will not support display mode programming and link training for UHBR rates. [how] If we detect a sink that's UHBR capable, disable seamless boot Reviewed-by: Anthony Koo <anthony.koo@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Fix DC mode screen flickering on DCN321Leo Ma
[Why && How] Screen flickering saw on 4K@60 eDP with high refresh rate external monitor when booting up in DC mode. DC Mode Capping is disabled which caused wrong UCLK being used. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Leo Ma <hanghong.ma@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Add VCO speed parameter for DCN31 FPURodrigo Siqueira
Add VCO speed parameters in the bounding box array. Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Allocate zero bw after bw alloc enableMeenakshikumar Somasundaram
[Why] During DP tunnel creation, CM preallocates BW and reduces estimated BW of other DPIA. CM release preallocation only when allocation is complete. Display mode validation logic validates timings based on bw available per host router. In multi display setup, this causes bw allocation failure when allocation greater than estimated bw. [How] Do zero alloc to make the CM to release preallocation and update estimated BW correctly for all DPIAs per host router. Reviewed-by: PeiChen Huang <peichen.huang@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Fix incorrect DSC instance for MSTHersen Wu
[Why] DSC debugfs, such as dp_dsc_clock_en_read, use aconnector->dc_link to find pipe_ctx for display. Displays connected to MST hub share the same dc_link. DSC instance is from pipe_ctx. This causes incorrect DSC instance for display connected to MST hub. [How] Add aconnector->sink check to find pipe_ctx. CC: stable@vger.kernel.org Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Atom Integrated System Info v2_2 for DCN35Gabe Teeger
New request from KMD/VBIOS in order to support new UMA carveout model. This fixes a null dereference from accessing Ctx->dc_bios->integrated_info while it was NULL. DAL parses through the BIOS and extracts the necessary integrated_info but was missing a case for the new BIOS version 2.3. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Gabe Teeger <gabe.teeger@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Add dtbclk access to dcn315Swapnil Patel
[Why & How] Currently DCN315 clk manager is missing code to enable/disable dtbclk. Because of this, "optimized_required" flag is constantly set and this prevents FreeSync from engaging for certain high bandwidth display Modes which require DTBCLK. Reviewed-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Swapnil Patel <swapnil.patel@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Ensure that dmcub support flag is set for DCN20Rodrigo Siqueira
In the DCN20 resource initialization, ensure that DMCUB support starts configured as true. Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Handle Y carry-over in VCP X.Y calculationGeorge Shen
Theoretically rare corner case where ceil(Y) results in rounding up to an integer. If this happens, the 1 should be carried over to the X value. CC: stable@vger.kernel.org Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: George Shen <george.shen@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Add MSF panel to DPCD 0x317 patch listTobias Jakobi
This 8.4 inch panel is integrated in the Ayaneo Kun handheld device. The panel resolution is 2560×1600, i.e. it has portrait dimensions. Decoding the EDID shows: Manufacturer: MSF Model: 4099 Display Product Name: 'TV080WUM-NL0 ' Judging from the product name this might be a clone of a BOE panel, but with larger dimensions. Panel frequently shows non-functional backlight control. Adding some debug prints to update_connector_ext_caps() shows that something the OLED bit of ext_caps is set, and then the driver assumes that backlight is controlled via AUX. Forcing backlight control to PWM via amdgpu.backlight=0 restores backlight operation. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Remove duplicate dcn401/dcn401_clk_mgr.h headerJiapeng Chong
./drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c: dcn401/dcn401_clk_mgr.h is included more than once. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8885 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: Remove duplicate spl/dc_spl_types.h headerJiapeng Chong
./drivers/gpu/drm/amd/display/dc/inc/hw/transform.h: spl/dc_spl_types.h is included more than once. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8884 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-30drm/amd/display: re-indent dpp401_dscl_program_isharp()Dan Carpenter
Smatch complains because some lines are indented more than they should be. I went a bit crazy re-indenting this. ;) The comments were not useful except as a marker of things which are left to implement so I deleted most of them except for the TODO. I introduced a "data" pointer so that I could replace "scl_data->dscl_prog_data." with just "data->" and shorten the lines a bit. It's more readable without the line breaks. I also tried to align it so you can see what is changing on each line. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
generated by cgit v1.2.3 (git 2.51.0) at 2026-11-06 19:16:45 +0000