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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/dc/dc_trace.h | |
| parent | drm/amd/display: Move specific DCN2x code that uses FPU to DML (diff) | |
| download | linux-dev-96ee63730fa30614e943ac352ef772be49a712d9.tar.xz linux-dev-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/dc/dc_trace.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_trace.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_trace.h b/drivers/gpu/drm/amd/display/dc/dc_trace.h index d2615357269b..d598ba697e45 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_trace.h +++ b/drivers/gpu/drm/amd/display/dc/dc_trace.h @@ -37,3 +37,6 @@ #define TRACE_DCN_CLOCK_STATE(dcn_clocks) \ trace_amdgpu_dm_dc_clocks_state(dcn_clocks) + +#define TRACE_DCN_FPU(begin, function, line) \ + trace_dcn_fpu(begin, function, line) |