git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From d64998e5fc5894eb37f142b7259fa3bec091abbc Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Thu, 24 Aug 2023 15:36:21 +0100
   4 Subject: [PATCH 0599/1085] drm/vc4: Fix dlist debug not resetting the next
   5  entry pointer
   6
   7 The debug function to display the dlists didn't reset next_entry_start
   8 when starting each display, so resulting in not stopping the
   9 list at the correct place.
  10
  11 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  12 ---
  13  drivers/gpu/drm/vc4/vc4_hvs.c | 3 ++-
  14  1 file changed, 2 insertions(+), 1 deletion(-)
  15
  16 --- a/drivers/gpu/drm/vc4/vc4_hvs.c
  17 +++ b/drivers/gpu/drm/vc4/vc4_hvs.c
  18 @@ -110,7 +110,7 @@ static int vc4_hvs_debugfs_dlist(struct
  19         struct vc4_dev *vc4 = to_vc4_dev(dev);
  20         struct vc4_hvs *hvs = vc4->hvs;
  21         struct drm_printer p = drm_seq_file_printer(m);
  22 -       unsigned int next_entry_start = 0;
  23 +       unsigned int next_entry_start;
  24         unsigned int i, j;
  25         u32 dlist_word, dispstat;
  26
  27 @@ -124,6 +124,7 @@ static int vc4_hvs_debugfs_dlist(struct
  28                 }
  29
  30                 drm_printf(&p, "HVS chan %u:\n", i);
  31 +               next_entry_start = 0;
  32
  33                 for (j = HVS_READ(SCALER_DISPLISTX(i)); j < 256; j++) {
  34                         dlist_word = readl((u32 __iomem *)vc4->hvs->dlist + j);