| Age | Commit message (Collapse) | Author | Files | Lines |
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Removal of DC_FP_* wrappers from dml (9696679bf7ac) provokes a mutex
lock [2] on the amdgpu driver. Re-arrange the dcn10 code to avoid
locking the mutex by placing the DC_FP_* wrappers around the proper
functions.
This fixes the following WARN/stacktrace:
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:283
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 227, name: systemd-udevd
preempt_count: 1, expected: 0
CPU: 4 PID: 227 Comm: systemd-udevd Not tainted 6.0.0-rc6-qtec-standard #2
Hardware name: Qtechnology A/S QT5222/QT5221, BIOS v1.0.1 06/07/2021
Call Trace:
<TASK>
dump_stack_lvl+0x33/0x42
__might_resched.cold.172+0xa5/0xb3
mutex_lock+0x1a/0x40
amdgpu_dpm_get_clock_by_type_with_voltage+0x38/0x70 [amdgpu]
dm_pp_get_clock_levels_by_type_with_voltage+0x64/0xa0 [amdgpu]
dcn_bw_update_from_pplib+0x70/0x340 [amdgpu]
dcn10_create_resource_pool+0x8c8/0xd20 [amdgpu]
? __kmalloc+0x1c7/0x4a0
dc_create_resource_pool+0xe7/0x190 [amdgpu]
dc_create+0x212/0x5d0 [amdgpu]
amdgpu_dm_init+0x246/0x370 [amdgpu]
? schedule_hrtimeout_range_clock+0x93/0x120
? phm_wait_for_register_unequal.part.1+0x4a/0x80 [amdgpu]
dm_hw_init+0xe/0x20 [amdgpu]
amdgpu_device_init.cold.56+0x1324/0x1653 [amdgpu]
? pci_bus_read_config_word+0x43/0x80
amdgpu_driver_load_kms+0x15/0x120 [amdgpu]
amdgpu_pci_probe+0x116/0x320 [amdgpu]
pci_device_probe+0x97/0x110
really_probe+0xdd/0x340
__driver_probe_device+0x80/0x170
driver_probe_device+0x1f/0x90
__driver_attach+0xdc/0x180
? __device_attach_driver+0x100/0x100
? __device_attach_driver+0x100/0x100
bus_for_each_dev+0x74/0xc0
bus_add_driver+0x19e/0x210
? kset_find_obj+0x30/0xa0
? 0xffffffffa0a5b000
driver_register+0x6b/0xc0
? 0xffffffffa0a5b000
do_one_initcall+0x4a/0x1f0
? __vunmap+0x28e/0x2f0
? __cond_resched+0x15/0x30
? kmem_cache_alloc_trace+0x3d/0x440
do_init_module+0x4a/0x1e0
load_module+0x1cba/0x1e10
? __do_sys_finit_module+0xb7/0x120
__do_sys_finit_module+0xb7/0x120
do_syscall_64+0x3c/0x80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff2b5f5422d
Code: 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 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 c3 ab 0e 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc44ab28e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 0000555c566a9240 RCX: 00007ff2b5f5422d
RDX: 0000000000000000 RSI: 00007ff2b60bb353 RDI: 0000000000000019
RBP: 00007ff2b60bb353 R08: 0000000000000000 R09: 0000555c566a9240
R10: 0000000000000019 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000020000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Fixes: 9696679bf7ac ("drm/amd/display: remove DC_FP_* wrapper from dml folder")
Reviewed-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Daniel Gomez <daniel@qtec.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[why]
Conditionals in the DML basic math functions significantly impact mode
enumeration.
[how]
Remove conditionals for floor/ceil operations which are used frequently
in DML and add an assertion for invalid callers using zero granuality.
Fix existing callers that rely on 0 granularity.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[Why]
RV2 do not change pipe split policy in the
minimal pipe split transition state.
This will unblock mode support on some
parts that limit to DPM0 for power reason.
[How]
Do not change pipe split policy in the
minimal pipe split transition state to
allow 4k multi display configs to be
supported at DPM0.
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Derek Lai <Derek.Lai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Fixes five checkpatch warnings:
CHECK: Please don't use multiple blank lines
+
+
ERROR: Macros with complex values should be enclosed in parentheses
+#define MAX_I64 \
+ (int64_t)((1ULL << 63) - 1)
WARNING: Missing a blank line after declarations
+ struct bw_fixed res;
+ ASSERT(value < BW_FIXED_MAX_I32 && value > BW_FIXED_MIN_I32);
ERROR: that open brace { should be on the previous line
+ do
+ {
ERROR: that open brace { should be on the previous line
+ if (remainder >= arg2_value)
+ {
Signed-off-by: Tales Aparecida <tales.aparecida@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The definition of MIN_I64 in bw_fixed.c can cause gcc to whinge about
integer overflow, because it is treated as a positive value, which is
then negated. The temporary positive value is not necessarily
representable.
This causes the following warning:
../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/calcs/bw_fixed.c:30:19:
warning: integer overflow in expression ‘-9223372036854775808’ of type
‘long long int’ results in ‘-9223372036854775808’ [-Woverflow]
30 | (int64_t)(-(1LL << 63))
| ^
Writing out (-MAX_I64 - 1) works instead.
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Tales Aparecida <tales.aparecida@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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FPU documentation states that developers must not use DC_FP_START/END
inside dml files, but use this macro to wrap calls to FPU functions in
dc folder (outside dml folder). Therefore, this patch removes DC_FP_*
wrappers from dml folder and wraps calls for these FPU operations
outside dml, as required.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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dcn10_validate_bandwidth is only used on dcn10 files, but is declared in
dcn_calcs files. Rename dcn10_* to dcn_* in calcs, remove DC_FP_* wrapper
inside DML folder and create an specific dcn10_validate_bandwidth in
dcn10_resources that calls dcn_validate_bandwidth and properly wraps that
FPU function with DC_FP_* macro.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Unused. Convert the divisions into asserts on the divisor, to
debug why it is zero. The divide by zero is suspected of causing
kernel panics.
While I have no idea where the zero is coming from I think this
patch is a positive either way.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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In calculate_bandwidth(), the tag free_sclk and free_yclk are reversed,
which could lead to a memory leak of yclk.
Fix this bug by changing the location of free_sclk and free_yclk.
This bug was found by a static analyzer.
Builds with 'make allyesconfig' show no new warnings,
and our static analyzer no longer warns about this code.
Fixes: 2be8989d0fc2 ("drm/amd/display/dc/calcs/dce_calcs: Move some large variables from the stack to the heap")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Eliminate the follow smatch warning:
drivers/gpu/drm/amd/display/dc/dml/calcs/dce_calcs.c:3415 bw_calcs() warn: inconsistent indenting
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The calcs folder has FPU code on it, which should be isolated inside the
DML folder as per https://patchwork.freedesktop.org/series/93042/.
This commit aims single-handedly to correct the location of such FPU
code and does not refactor any functions.
Changes since v2:
- Corrected problems to compile when DCN was disabled.
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Isabella Basso <isabbasso@riseup.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Daniel Gomez
Aric Cyr
Derek Lai
Tales Aparecida
David Gow
Melissa Wen
Bas Nieuwenhuizen
Zhou Qingyang
Yang Li
Isabella Basso