Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a018298f authored by Harry Wentland's avatar Harry Wentland Committed by Alex Deucher
Browse files

drm/amd/display: Add disclaimer to BW and DML code provided by HW 



This code can sometimes look troubling but we trust it as it comes from
HW teams with a guarantee of correctness. Add a note to these files to
explain this.

v2: thing -> things

Signed-off-by: default avatarHarry Wentland <harry.wentland@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3f4e3a28

drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c

+9 −0
Original line number Diff line number Diff line
@@ -29,6 +29,15 @@ 
#include "core_types.h"

#include "dal_asic_id.h"



/*

 * NOTE:

 *   This file is gcc-parseable HW gospel, coming straight from HW engineers.

 *

 * It doesn't adhere to Linux kernel style and sometimes will do things in odd

 * ways. Unless there is something clearly wrong with it the code should

 * remain as-is as it provides us with a guarantee from HW that it is correct.

 */



/*******************************************************************************

 * Private Functions

 ******************************************************************************/

drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.c

+9 −0
Original line number Diff line number Diff line
@@ -27,6 +27,15 @@ 
#include "dcn_calc_auto.h"

#include "dcn_calc_math.h"



/*

 * NOTE:

 *   This file is gcc-parseable HW gospel, coming straight from HW engineers.

 *

 * It doesn't adhere to Linux kernel style and sometimes will do things in odd

 * ways. Unless there is something clearly wrong with it the code should

 * remain as-is as it provides us with a guarantee from HW that it is correct.

 */



/*REVISION#250*/

void scaler_settings_calculation(struct dcn_bw_internal_vars *v)

{

drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.c

+9 −0
Original line number Diff line number Diff line
@@ -27,6 +27,15 @@ 


#define isNaN(number) ((number) != (number))



/*

 * NOTE:

 *   This file is gcc-parseable HW gospel, coming straight from HW engineers.

 *

 * It doesn't adhere to Linux kernel style and sometimes will do things in odd

 * ways. Unless there is something clearly wrong with it the code should

 * remain as-is as it provides us with a guarantee from HW that it is correct.

 */



float dcn_bw_mod(const float arg1, const float arg2)

{

	if (isNaN(arg1))

drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c

+9 −0
Original line number Diff line number Diff line
@@ -33,6 +33,15 @@ 
#include "dcn10/dcn10_resource.h"

#include "dcn_calc_math.h"



/*

 * NOTE:

 *   This file is gcc-parseable HW gospel, coming straight from HW engineers.

 *

 * It doesn't adhere to Linux kernel style and sometimes will do things in odd

 * ways. Unless there is something clearly wrong with it the code should

 * remain as-is as it provides us with a guarantee from HW that it is correct.

 */



/* Defaults from spreadsheet rev#247 */

const struct dcn_soc_bounding_box dcn10_soc_defaults = {

		/* latencies */

drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c

+9 −0
Original line number Diff line number Diff line
@@ -28,6 +28,15 @@ 


#include "dml_inline_defs.h"



/*

 * NOTE:

 *   This file is gcc-parseable HW gospel, coming straight from HW engineers.

 *

 * It doesn't adhere to Linux kernel style and sometimes will do things in odd

 * ways. Unless there is something clearly wrong with it the code should

 * remain as-is as it provides us with a guarantee from HW that it is correct.

 */



#define BPP_INVALID 0

#define BPP_BLENDED_PIPE 0xffffffff

static const unsigned int NumberOfStates = DC__VOLTAGE_STATES;