target/linux/bcm27xx/patches-5.4/950-0097-drm-vc4-Add-DRM_DEBUG_ATOMIC-for-the-insides-of-fkms.patch

   1 From 339bb475540dcf04709e1519ee694d42be1efd94 Mon Sep 17 00:00:00 2001
   2 From: Eric Anholt <eric@anholt.net>
   3 Date: Wed, 1 Feb 2017 17:10:09 -0800
   4 Subject: [PATCH] drm/vc4: Add DRM_DEBUG_ATOMIC for the insides of
   5  fkms.
   6
   7 Trying to debug weston on fkms involved figuring out what calls I was
   8 making to the firmware.
   9
  10 Signed-off-by: Eric Anholt <eric@anholt.net>
  11 ---
  12  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 26 ++++++++++++++++++++++++++
  13  1 file changed, 26 insertions(+)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  17 @@ -101,6 +101,11 @@ static int vc4_plane_set_primary_blank(s
  18         struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
  19
  20         u32 packet = blank;
  21 +
  22 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary plane %s",
  23 +                        plane->base.id, plane->name,
  24 +                        blank ? "blank" : "unblank");
  25 +
  26         return rpi_firmware_property(vc4->firmware,
  27                                      RPI_FIRMWARE_FRAMEBUFFER_BLANK,
  28                                      &packet, sizeof(packet));
  29 @@ -148,6 +153,16 @@ static void vc4_primary_plane_atomic_upd
  30                 WARN_ON_ONCE(vc4_plane->pitch != fb->pitches[0]);
  31         }
  32
  33 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary update %dx%d@%d +%d,%d 0x%08x/%d\n",
  34 +                        plane->base.id, plane->name,
  35 +                        state->crtc_w,
  36 +                        state->crtc_h,
  37 +                        bpp,
  38 +                        state->crtc_x,
  39 +                        state->crtc_y,
  40 +                        bo->paddr + fb->offsets[0],
  41 +                        fb->pitches[0]);
  42 +
  43         ret = rpi_firmware_transaction(vc4->firmware,
  44                                        RPI_FIRMWARE_CHAN_FB,
  45                                        vc4_plane->fbinfo_bus_addr);
  46 @@ -176,6 +191,15 @@ static void vc4_cursor_plane_atomic_upda
  47                               0, 0, /* hotx, hoty */};
  48         WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4);
  49
  50 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] update %dx%d cursor at %d,%d (0x%08x/%d)",
  51 +                        plane->base.id, plane->name,
  52 +                        state->crtc_w,
  53 +                        state->crtc_h,
  54 +                        state->crtc_x,
  55 +                        state->crtc_y,
  56 +                        bo->paddr + fb->offsets[0],
  57 +                        fb->pitches[0]);
  58 +
  59         ret = rpi_firmware_property(vc4->firmware,
  60                                     RPI_FIRMWARE_SET_CURSOR_STATE,
  61                                     &packet_state,
  62 @@ -198,6 +222,8 @@ static void vc4_cursor_plane_atomic_disa
  63         u32 packet_state[] = { false, 0, 0, 0 };
  64         int ret;
  65
  66 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] disabling cursor", plane->base.id, plane->name);
  67 +
  68         ret = rpi_firmware_property(vc4->firmware,
  69                                     RPI_FIRMWARE_SET_CURSOR_STATE,
  70                                     &packet_state,