Re: [PATCH i-g-t v2 09/15] igt_kms: Clear all _changed members centrally

[Maarten Lankhorst <maarten.lankhorst@linux.intel.com>]

Op 21-07-16 om 14:13 schreef Ander Conselvan De Oliveira:
> On Wed, 2016-07-06 at 11:55 +0200, Maarten Lankhorst wrote:
>> This will make it easier to support TEST_ONLY commits.
>>
>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
>> ---
>>  lib/igt_kms.c | 84 ++++++++++++++++++++++++++++++++++----------------------
>> ---
>>  1 file changed, 48 insertions(+), 36 deletions(-)
>>
>> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
>> index 9fc5559a5df4..d0d0dcff8193 100644
>> --- a/lib/igt_kms.c
>> +++ b/lib/igt_kms.c
>> @@ -1727,11 +1727,6 @@ igt_atomic_prepare_plane_commit(igt_plane_t *plane,
>> igt_pipe_t *pipe,
>>  	if (plane->rotation_changed)
>>  		igt_atomic_populate_plane_req(req, plane,
>>  			IGT_PLANE_ROTATION, plane->rotation);
>> -
>> -	plane->fb_changed = false;
>> -	plane->position_changed = false;
>> -	plane->size_changed = false;
>> -	plane->rotation_changed = false;
>>  }
>>  
>>  
>> @@ -1819,15 +1814,10 @@ static int igt_drm_plane_commit(igt_plane_t *plane,
>>  		CHECK_RETURN(ret, fail_on_error);
>>  	}
>>  
>> -	plane->fb_changed = false;
>> -	plane->position_changed = false;
>> -	plane->size_changed = false;
>> -
>>  	if (plane->rotation_changed) {
>>  		ret = igt_plane_set_property(plane, plane->rotation_property,
>>  				       plane->rotation);
>>  
>> -		plane->rotation_changed = false;
>>  		CHECK_RETURN(ret, fail_on_error);
>>  	}
>>  
>> @@ -1872,8 +1862,6 @@ static int igt_cursor_commit_legacy(igt_plane_t *cursor,
>>  		}
>>  
>>  		CHECK_RETURN(ret, fail_on_error);
>> -
>> -		cursor->fb_changed = false;
>>  	}
>>  
>>  	if (cursor->position_changed) {
>> @@ -1887,8 +1875,6 @@ static int igt_cursor_commit_legacy(igt_plane_t *cursor,
>>  
>>  		ret = drmModeMoveCursor(display->drm_fd, crtc_id, x, y);
>>  		CHECK_RETURN(ret, fail_on_error);
>> -
>> -		cursor->position_changed = false;
>>  	}
>>  
>>  	return 0;
>> @@ -1915,7 +1901,7 @@ static int igt_primary_plane_commit_legacy(igt_plane_t
>> *primary,
>>  	igt_assert(!primary->rotation_changed);
>>  
>>  	if (!primary->fb_changed && !primary->position_changed &&
>> -		!primary->size_changed)
>> +	    !primary->size_changed)
>>  		return 0;
>>  
>>  	crtc_id = pipe->crtc_id;
>> @@ -1959,9 +1945,6 @@ static int igt_primary_plane_commit_legacy(igt_plane_t
>> *primary,
>>  	CHECK_RETURN(ret, fail_on_error);
>>  
>>  	primary->pipe->enabled = (fb_id != 0);
>> -	primary->fb_changed = false;
>> -	primary->position_changed = false;
>> -	primary->size_changed = false;
>>  
>>  	return 0;
>>  }
>> @@ -1982,7 +1965,7 @@ static int igt_plane_commit(igt_plane_t *plane,
>>  		return igt_primary_plane_commit_legacy(plane, pipe,
>>  						       fail_on_error);
>>  	} else {
>> -			return igt_drm_plane_commit(plane, pipe,
>> fail_on_error);
>> +		return igt_drm_plane_commit(plane, pipe, fail_on_error);
>>  	}
>>  }
>>  
>> @@ -2008,8 +1991,6 @@ static int igt_pipe_commit(igt_pipe_t *pipe,
>>  	if (pipe->background_changed) {
>>  		igt_crtc_set_property(pipe, pipe->background_property,
>>  			pipe->background);
>> -
>> -		pipe->background_changed = false;
>>  	}
>>  
>>  	if (pipe->color_mgmt_changed) {
>> @@ -2019,8 +2000,6 @@ static int igt_pipe_commit(igt_pipe_t *pipe,
>>  				      pipe->ctm_blob);
>>  		igt_crtc_set_property(pipe, pipe->gamma_property,
>>  				      pipe->gamma_blob);
>> -
>> -		pipe->color_mgmt_changed = false;
>>  	}
>>  
>>  	for (i = 0; i < pipe->n_planes; i++) {
>> @@ -2140,35 +2119,68 @@ static int do_display_commit(igt_display_t *display,
>>  			     bool fail_on_error)
>>  {
>>  	int i, ret;
>> -	int valid_outs = 0;
>> -
>> +	enum pipe pipe;
>>  	LOG_INDENT(display, "commit");
>>  
>>  	igt_display_refresh(display);
>>  
>>  	if (s == COMMIT_ATOMIC) {
>> -
>>  		ret = igt_atomic_commit(display);
>> +
>>  		CHECK_RETURN(ret, fail_on_error);
>> -		return 0;
>> +	} else {
>> +		int valid_outs = 0;
>>  
>> -	}
>> +		for_each_pipe(display, pipe) {
>> +			igt_pipe_t *pipe_obj = &display->pipes[pipe];
>> +			igt_output_t *output = igt_pipe_get_output(pipe_obj);
>>  
>> -	for_each_pipe(display, i) {
>> -		igt_pipe_t *pipe_obj = &display->pipes[i];
>> -		igt_output_t *output = igt_pipe_get_output(pipe_obj);
>> +			if (output && output->valid)
>> +				valid_outs++;
>>  
>> -		if (output && output->valid)
>> -			valid_outs++;
>> +			ret = igt_pipe_commit(pipe_obj, s, fail_on_error);
>> +			CHECK_RETURN(ret, fail_on_error);
>> +		}
>>  
>> -		ret = igt_pipe_commit(pipe_obj, s, fail_on_error);
>>  		CHECK_RETURN(ret, fail_on_error);
>> +
>> +		if (valid_outs == 0) {
>> +			LOG_UNINDENT(display);
>> +
>> +			return -1;
>> +		}
>>  	}
>>  
>>  	LOG_UNINDENT(display);
>>  
>> -	if (valid_outs == 0)
>> -		return -1;
>> +	if (ret)
>> +		return ret;
>> +
>> +	for_each_pipe(display, pipe) {
>> +		igt_pipe_t *pipe_obj = &display->pipes[pipe];
>> +		igt_plane_t *plane;
>> +
>> +		if (s == COMMIT_ATOMIC) {
>> +			pipe_obj->color_mgmt_changed = false;
>> +			pipe_obj->background_changed = false;
>> +		}
> If this is supposed to match the previous behavior, shouldn't the condition be
> "!= COMMIT_ATOMIC". Both flags are set from igt_pipe_commit() which is not
> called in the atomic case. However, the flags aren't set to false in
> igt_atomic_prepare_crtc_commit(). That actually sounds like a bug?
I think you're right, real fix is to just update those atomically too. :)
>> +
>> +		for_each_plane_on_pipe(display, pipe, plane) {
>> +			plane->fb_changed = false;
>> +			plane->position_changed = false;
>> +			plane->size_changed = false;
>> +
>> +			if (s != COMMIT_LEGACY || !(plane->is_primary || 
>> plane->is_cursor))
>> +				plane->rotation_changed = false;
> Can't plane->rotation_changed be set unconditionally here? The legacy primary
> plane commit has an assert for rotation_changed == false and perhaps the cursor
> version should have the same.
This is specifically to exclude s == COMMIT_LEGACY && (plane->is_primary || plane->is_cursor),
we don't update rotation_changed in this case.

Maybe I should just add an assert to the legacy update functions instead.
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