Commit 6a0b99e9 authored by Gert Wollny's avatar Gert Wollny Committed by Christian Gmeiner
Browse files

drm/etnaviv: Add module parameter to force PPU flop reset 



v2: Check for feature PIPE_3D when forcing PPU flop reset (Lucas)

v3: - drop use of ppu_flop_reset enum (Christian Gmeiner)
    - don't initialize module parameter to zero (checkpatch)
    - avoid multi-line string in warning message (checkpatch)

Signed-off-by: default avatarGert Wollny <gert.wollny@collabora.com>
Reviewed-by: default avatarChristian Gmeiner <cgmeiner@igalia.com>
Tested-by: Marek Vasut <marek.vasut@mailbox.org> # STM32MP255C DHCOS DHSBC
Link: https://patch.msgid.link/20251119164624.9297-6-gert.wollny@collabora.com


Signed-off-by: default avatarChristian Gmeiner <cgmeiner@igalia.com>
parent 85ba57ad

drivers/gpu/drm/etnaviv/etnaviv_flop_reset.c

+16 −0
Original line number Diff line number Diff line
@@ -15,6 +15,9 @@ 


#include "etnaviv_flop_reset.h"



static int etnaviv_force_flop_reset;

module_param_named(force_flop_reset, etnaviv_force_flop_reset, int, 0);



#define PPU_IMAGE_STRIDE 64

#define PPU_IMAGE_XSIZE 64

#define PPU_IMAGE_YSIZE 6
@@ -150,6 +153,19 @@ bool etnaviv_flop_reset_ppu_require(const struct etnaviv_chip_identity *chip_id) 
			return true;

	}



	if (etnaviv_force_flop_reset) {

		if (!(chip_id->features & chipFeatures_PIPE_3D)) {

			pr_warn("Etnaviv: model: 0x%04x, revision: 0x%04x does not support PIPE_3D\n",

				chip_id->model, chip_id->revision);

			pr_warn("Request to force PPU flop reset ignored.\n");

			return false;

		}



		pr_info("Force PPU flop reset for model: 0x%04x, revision: 0x%04x\n",

			chip_id->model, chip_id->revision);

		return true;

	}



	return false;

}