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| author | Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> | 2021-07-26 20:52:46 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-05 21:17:59 -0400 |
| commit | 96ee63730fa30614e943ac352ef772be49a712d9 (patch) | |
| tree | d35f008e9afa9521a7845b1aa8e56a687ed00bb0 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h | |
| parent | c8b3538d05f7393e09a29bb0c3f9dda19c1e5da6 (diff) | |
| download | linux-96ee63730fa30614e943ac352ef772be49a712d9.tar.gz linux-96ee63730fa30614e943ac352ef772be49a712d9.tar.bz2 linux-96ee63730fa30614e943ac352ef772be49a712d9.zip | |
drm/amd/display: Add control mechanism for FPU
DC invokes DC_FPU_START/END in multiple parts of the code; this can
create a situation where we invoke this FPU operation in a nested way or
exit too early. For avoiding this situation, this commit adds a
mechanism where dc_fpu_begin/end manages the access to
kernel_fpu_begin/end.
Change since V3:
- Christian: Move PPC64 code to dc_fpu_begin/end.
Change since V2:
- Christian: Do not use this_cpu_* between get/put_cpu_ptr().
Change since V1:
- Use a better variable names
- Use get_cpu_ptr and put_cpu_ptr to better balance preemption enable
and disable
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Anson Jacob <Anson.Jacob@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Aric Cyr <aric.cyr@amd.com>
Cc: Jun Lei <jun.lei@amd.com>
Cc: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Cc: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h index 46a33f64cf8e..230bb12c405e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h @@ -637,6 +637,27 @@ TRACE_EVENT(amdgpu_refresh_rate_track, __entry->refresh_rate_ns) ); +TRACE_EVENT(dcn_fpu, + TP_PROTO(bool begin, const char *function, const int line), + TP_ARGS(begin, function, line), + + TP_STRUCT__entry( + __field(bool, begin) + __field(const char *, function) + __field(int, line) + ), + TP_fast_assign( + __entry->begin = begin; + __entry->function = function; + __entry->line = line; + ), + TP_printk("%s()+%d: %s", + __entry->function, + __entry->line, + __entry->begin ? "begin" : "end" + ) +); + #endif /* _AMDGPU_DM_TRACE_H_ */ #undef TRACE_INCLUDE_PATH |