Commit Graph

7 Commits

Author SHA1 Message Date
Rafal Ostrowski
63ab80d9ac drm/amd/display: DML2.1 Post-Si Cleanup
[Why]
There are a few cleanup and refactoring tasks that need to be done
with the DML2.1 wrapper and DC interface to remove dependencies on
legacy structures and N-1 prototypes.

[How]
Implemented pipe_ctx->global_sync.
Implemented new functions to use pipe_ctx->hubp_regs and
pipe_ctx->global_sync:
- hubp_setup2
- hubp_setup_interdependent2
- Several other new functions for DCN 4.01 to support newer structures

Removed dml21_update_pipe_ctx_dchub_regs
Removed dml21_extract_legacy_watermark_set
Removed dml21_populate_pipe_ctx_dlg_param
Removed outdated dcn references in DML2.1 wrapper.

Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Rafal Ostrowski <rostrows@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-01-10 12:00:34 -05:00
Dr. David Alan Gilbert
5fd95dab60 drm/amd/display: Remove last parts of timing_trace
Commit c2c2ce1e96 ("drm/amd/display: Optimize passive update planes.")
removed the last caller of context_timing_trace.
Remove it.

With that gone, no one is now looking at the 'timing_trace' flag, remove
it and all the places that set it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-11-04 11:26:36 -05:00
Srinivasan Shanmugam
63de35a8fc drm/amd/display: Fix out-of-bounds access in 'dcn21_link_encoder_create'
An issue was identified in the dcn21_link_encoder_create function where
an out-of-bounds access could occur when the hpd_source index was used
to reference the link_enc_hpd_regs array. This array has a fixed size
and the index was not being checked against the array's bounds before
accessing it.

This fix adds a conditional check to ensure that the hpd_source index is
within the valid range of the link_enc_hpd_regs array. If the index is
out of bounds, the function now returns NULL to prevent undefined
behavior.

References:

[   65.920507] ------------[ cut here ]------------
[   65.920510] UBSAN: array-index-out-of-bounds in drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn21/dcn21_resource.c:1312:29
[   65.920519] index 7 is out of range for type 'dcn10_link_enc_hpd_registers [5]'
[   65.920523] CPU: 3 PID: 1178 Comm: modprobe Tainted: G           OE      6.8.0-cleanershaderfeatureresetasdntipmi200nv2132 #13
[   65.920525] Hardware name: AMD Majolica-RN/Majolica-RN, BIOS WMJ0429N_Weekly_20_04_2 04/29/2020
[   65.920527] Call Trace:
[   65.920529]  <TASK>
[   65.920532]  dump_stack_lvl+0x48/0x70
[   65.920541]  dump_stack+0x10/0x20
[   65.920543]  __ubsan_handle_out_of_bounds+0xa2/0xe0
[   65.920549]  dcn21_link_encoder_create+0xd9/0x140 [amdgpu]
[   65.921009]  link_create+0x6d3/0xed0 [amdgpu]
[   65.921355]  create_links+0x18a/0x4e0 [amdgpu]
[   65.921679]  dc_create+0x360/0x720 [amdgpu]
[   65.921999]  ? dmi_matches+0xa0/0x220
[   65.922004]  amdgpu_dm_init+0x2b6/0x2c90 [amdgpu]
[   65.922342]  ? console_unlock+0x77/0x120
[   65.922348]  ? dev_printk_emit+0x86/0xb0
[   65.922354]  dm_hw_init+0x15/0x40 [amdgpu]
[   65.922686]  amdgpu_device_init+0x26a8/0x33a0 [amdgpu]
[   65.922921]  amdgpu_driver_load_kms+0x1b/0xa0 [amdgpu]
[   65.923087]  amdgpu_pci_probe+0x1b7/0x630 [amdgpu]
[   65.923087]  local_pci_probe+0x4b/0xb0
[   65.923087]  pci_device_probe+0xc8/0x280
[   65.923087]  really_probe+0x187/0x300
[   65.923087]  __driver_probe_device+0x85/0x130
[   65.923087]  driver_probe_device+0x24/0x110
[   65.923087]  __driver_attach+0xac/0x1d0
[   65.923087]  ? __pfx___driver_attach+0x10/0x10
[   65.923087]  bus_for_each_dev+0x7d/0xd0
[   65.923087]  driver_attach+0x1e/0x30
[   65.923087]  bus_add_driver+0xf2/0x200
[   65.923087]  driver_register+0x64/0x130
[   65.923087]  ? __pfx_amdgpu_init+0x10/0x10 [amdgpu]
[   65.923087]  __pci_register_driver+0x61/0x70
[   65.923087]  amdgpu_init+0x7d/0xff0 [amdgpu]
[   65.923087]  do_one_initcall+0x49/0x310
[   65.923087]  ? kmalloc_trace+0x136/0x360
[   65.923087]  do_init_module+0x6a/0x270
[   65.923087]  load_module+0x1fce/0x23a0
[   65.923087]  init_module_from_file+0x9c/0xe0
[   65.923087]  ? init_module_from_file+0x9c/0xe0
[   65.923087]  idempotent_init_module+0x179/0x230
[   65.923087]  __x64_sys_finit_module+0x5d/0xa0
[   65.923087]  do_syscall_64+0x76/0x120
[   65.923087]  entry_SYSCALL_64_after_hwframe+0x6e/0x76
[   65.923087] RIP: 0033:0x7f2d80f1e88d
[   65.923087] Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 b5 0f 00 f7 d8 64 89 01 48
[   65.923087] RSP: 002b:00007ffc7bc1aa78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   65.923087] RAX: ffffffffffffffda RBX: 0000564c9c1db130 RCX: 00007f2d80f1e88d
[   65.923087] RDX: 0000000000000000 RSI: 0000564c9c1e5480 RDI: 000000000000000f
[   65.923087] RBP: 0000000000040000 R08: 0000000000000000 R09: 0000000000000002
[   65.923087] R10: 000000000000000f R11: 0000000000000246 R12: 0000564c9c1e5480
[   65.923087] R13: 0000564c9c1db260 R14: 0000000000000000 R15: 0000564c9c1e54b0
[   65.923087]  </TASK>
[   65.923927] ---[ end trace ]---

Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-10-01 17:37:41 -04:00
Alex Hung
5559598742 drm/amd/display: Pass non-null to dcn20_validate_apply_pipe_split_flags
[WHAT & HOW]
"dcn20_validate_apply_pipe_split_flags" dereferences merge, and thus it
cannot be a null pointer. Let's pass a valid pointer to avoid null
dereference.

This fixes 2 FORWARD_NULL issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@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>
2024-07-23 17:07:11 -04:00
Rodrigo Siqueira
6d4279cb99 drm/amd/display: Drop legacy code
This commit removes code that are not used by display anymore.

Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-12 00:34:49 -04:00
RutingZhang
bcdbd6f607 drm/amd/display: remove unnecessary braces to fix coding style
checkpatch complains that:

WARNING: braces {} are not necessary for single statement blocks
+                if (pool->base.irqs != NULL) {
+                        dal_irq_service_destroy(&pool->base.irqs);
+                }

Fixed it by removing unnecessary braces to fix the coding style issue.

Signed-off-by: RutingZhang <u202112078@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-29 16:49:22 -05:00
Mounika Adhuri
8b8eed05a1 drm/amd/display: Refactor resource into component directory
[WHY]
Move all resource files to unique folder resource.

[HOW]
Created resource folder in dc, moved the
dcnxx_resource.c and dcnxx_resource.h files into
corresponding new folders inside the resource and
made appropriate changes for compilation in Makefiles.

Reviewed-by: Martin Leung <martin.leung@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Mounika Adhuri <moadhuri@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 09:30:50 -05:00