From 3660abb4a8523e988f1345985e89149804e50ebe Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Thu, 24 Aug 2023 15:36:21 +0100 Subject: [PATCH] drm/vc4: 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. Signed-off-by: Dave Stevenson --- drivers/gpu/drm/vc4/vc4_hvs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -110,7 +110,7 @@ static int vc4_hvs_debugfs_dlist(struct 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 } 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);