Commit 6d5f76e0 authored by Dave Stevenson's avatar Dave Stevenson
Browse files

drm/vc4: hvs: Fix dlist debug not resetting the next entry pointer 



The debug function to display the dlists didn't reset next_entry_start
when starting each display, so resulting in not stopping the
list at the correct place.

Fixes: c6dac003 ("drm/vc4: hvs: Add debugfs node that dumps the current display lists")
Reviewed-by: default avatarMaxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240621152055.4180873-18-dave.stevenson@raspberrypi.com


Signed-off-by: default avatarDave Stevenson <dave.stevenson@raspberrypi.com>
parent 223ee256

drivers/gpu/drm/vc4/vc4_hvs.c

+2 −1
Original line number Diff line number Diff line
@@ -110,7 +110,7 @@ static int vc4_hvs_debugfs_dlist(struct seq_file *m, void *data) 
	struct vc4_dev *vc4 = to_vc4_dev(dev);

	struct vc4_hvs *hvs = vc4->hvs;

	struct drm_printer p = drm_seq_file_printer(m);

	unsigned int next_entry_start = 0;

	unsigned int next_entry_start;

	unsigned int i, j;

	u32 dlist_word, dispstat;
@@ -124,6 +124,7 @@ static int vc4_hvs_debugfs_dlist(struct seq_file *m, void *data) 
		}



		drm_printf(&p, "HVS chan %u:\n", i);

		next_entry_start = 0;



		for (j = HVS_READ(SCALER_DISPLISTX(i)); j < 256; j++) {

			dlist_word = readl((u32 __iomem *)vc4->hvs->dlist + j);