target/linux/brcm2708/patches-4.9/0178-drm-vc4-Add-DRM_DEBUG_ATOMIC-for-the-insides-of-fkms.patch

   1 From ac45ecdcbc38c6ec6b477980d0cd0760267f6057 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 fkms.
   5
   6 Trying to debug weston on fkms involved figuring out what calls I was
   7 making to the firmware.
   8
   9 Signed-off-by: Eric Anholt <eric@anholt.net>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 26 ++++++++++++++++++++++++++
  12  1 file changed, 26 insertions(+)
  13
  14 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  15 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  16 @@ -102,6 +102,11 @@ static int vc4_plane_set_primary_blank(s
  17         struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
  18
  19         u32 packet = blank;
  20 +
  21 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary plane %s",
  22 +                        plane->base.id, plane->name,
  23 +                        blank ? "blank" : "unblank");
  24 +
  25         return rpi_firmware_property(vc4->firmware,
  26                                      RPI_FIRMWARE_FRAMEBUFFER_BLANK,
  27                                      &packet, sizeof(packet));
  28 @@ -149,6 +154,16 @@ static void vc4_primary_plane_atomic_upd
  29                 WARN_ON_ONCE(vc4_plane->pitch != fb->pitches[0]);
  30         }
  31
  32 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary update %dx%d@%d +%d,%d 0x%08x/%d\n",
  33 +                        plane->base.id, plane->name,
  34 +                        state->crtc_w,
  35 +                        state->crtc_h,
  36 +                        bpp,
  37 +                        state->crtc_x,
  38 +                        state->crtc_y,
  39 +                        bo->paddr + fb->offsets[0],
  40 +                        fb->pitches[0]);
  41 +
  42         ret = rpi_firmware_transaction(vc4->firmware,
  43                                        RPI_FIRMWARE_CHAN_FB,
  44                                        vc4_plane->fbinfo_bus_addr);
  45 @@ -178,6 +193,15 @@ static void vc4_cursor_plane_atomic_upda
  46         WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4);
  47         WARN_ON_ONCE(fb->bits_per_pixel != 32);
  48
  49 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] update %dx%d cursor at %d,%d (0x%08x/%d)",
  50 +                        plane->base.id, plane->name,
  51 +                        state->crtc_w,
  52 +                        state->crtc_h,
  53 +                        state->crtc_x,
  54 +                        state->crtc_y,
  55 +                        bo->paddr + fb->offsets[0],
  56 +                        fb->pitches[0]);
  57 +
  58         ret = rpi_firmware_property(vc4->firmware,
  59                                     RPI_FIRMWARE_SET_CURSOR_STATE,
  60                                     &packet_state,
  61 @@ -200,6 +224,8 @@ static void vc4_cursor_plane_atomic_disa
  62         u32 packet_state[] = { false, 0, 0, 0 };
  63         int ret;
  64
  65 +       DRM_DEBUG_ATOMIC("[PLANE:%d:%s] disabling cursor", plane->base.id, plane->name);
  66 +
  67         ret = rpi_firmware_property(vc4->firmware,
  68                                     RPI_FIRMWARE_SET_CURSOR_STATE,
  69                                     &packet_state,