target/linux/bcm27xx/patches-5.15/950-0908-drm-vc4-crtc-Don-t-call-into-BO-Handling-on-Async-Pa.patch

   1 From 7aa9189e401ddee705d851fe30b59d81cc71ebac Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Mon, 2 May 2022 15:28:05 +0200
   4 Subject: [PATCH] drm/vc4: crtc: Don't call into BO Handling on Async
   5  Page-Flips on BCM2711
   6
   7 The BCM2711 doesn't have a v3d GPU so we don't want to call into its BO
   8 management code. Let's create an asynchronous page-flip handler for the
   9 BCM2711 that just calls into the common code.
  10
  11 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  12 ---
  13  drivers/gpu/drm/vc4/vc4_crtc.c | 21 ++++++++++++++++++---
  14  1 file changed, 18 insertions(+), 3 deletions(-)
  15
  16 --- a/drivers/gpu/drm/vc4/vc4_crtc.c
  17 +++ b/drivers/gpu/drm/vc4/vc4_crtc.c
  18 @@ -983,16 +983,31 @@ static int vc4_async_page_flip(struct dr
  19         return 0;
  20  }
  21
  22 +static int vc5_async_page_flip(struct drm_crtc *crtc,
  23 +                              struct drm_framebuffer *fb,
  24 +                              struct drm_pending_vblank_event *event,
  25 +                              uint32_t flags)
  26 +{
  27 +       return vc4_async_page_flip_common(crtc, fb, event, flags);
  28 +}
  29 +
  30  int vc4_page_flip(struct drm_crtc *crtc,
  31                   struct drm_framebuffer *fb,
  32                   struct drm_pending_vblank_event *event,
  33                   uint32_t flags,
  34                   struct drm_modeset_acquire_ctx *ctx)
  35  {
  36 -       if (flags & DRM_MODE_PAGE_FLIP_ASYNC)
  37 -               return vc4_async_page_flip(crtc, fb, event, flags);
  38 -       else
  39 +       if (flags & DRM_MODE_PAGE_FLIP_ASYNC) {
  40 +               struct drm_device *dev = crtc->dev;
  41 +               struct vc4_dev *vc4 = to_vc4_dev(dev);
  42 +
  43 +               if (vc4->is_vc5)
  44 +                       return vc5_async_page_flip(crtc, fb, event, flags);
  45 +               else
  46 +                       return vc4_async_page_flip(crtc, fb, event, flags);
  47 +       } else {
  48                 return drm_atomic_helper_page_flip(crtc, fb, event, flags, ctx);
  49 +       }
  50  }
  51
  52  struct drm_crtc_state *vc4_crtc_duplicate_state(struct drm_crtc *crtc)