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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-07-09 20:32:28 +0200 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-07-14 12:44:14 +0200 |
commit | 42954857190b9df16d9d873ecc7f6cc38e013e44 (patch) | |
tree | 98c588f629ff534d458eb0884782ea99672d7634 /target/linux/brcm2708/patches-4.19/950-0114-drm-vc4-Fix-sending-of-page-flip-completion-events-i.patch | |
parent | f1875e902d0afb7d9b9e5285b4fd8da7f6c5e30a (diff) | |
download | upstream-42954857190b9df16d9d873ecc7f6cc38e013e44.tar.gz upstream-42954857190b9df16d9d873ecc7f6cc38e013e44.tar.bz2 upstream-42954857190b9df16d9d873ecc7f6cc38e013e44.zip |
brcm2708: add linux 4.19 support
Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0114-drm-vc4-Fix-sending-of-page-flip-completion-events-i.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0114-drm-vc4-Fix-sending-of-page-flip-completion-events-i.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0114-drm-vc4-Fix-sending-of-page-flip-completion-events-i.patch b/target/linux/brcm2708/patches-4.19/950-0114-drm-vc4-Fix-sending-of-page-flip-completion-events-i.patch new file mode 100644 index 0000000000..50fcf11f08 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0114-drm-vc4-Fix-sending-of-page-flip-completion-events-i.patch @@ -0,0 +1,42 @@ +From 96cfb9903f60e98d964c3547ac0cf5b920083c04 Mon Sep 17 00:00:00 2001 +From: Eric Anholt <eric@anholt.net> +Date: Thu, 2 Feb 2017 09:42:18 -0800 +Subject: [PATCH 114/703] drm/vc4: Fix sending of page flip completion events + in FKMS mode. + +In the rewrite of vc4_crtc.c for fkms, I dropped the part of the +CRTC's atomic flush handler that moved the completion event from the +proposed atomic state change to the CRTC's current state. That meant +that when full screen pageflipping happened (glxgears -fullscreen in +X, compton, por weston), the app would end up blocked firever waiting +to draw its next frame. + +Signed-off-by: Eric Anholt <eric@anholt.net> +--- + drivers/gpu/drm/vc4/vc4_firmware_kms.c | 15 +++++++++++++++ + 1 file changed, 15 insertions(+) + +--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c ++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c +@@ -336,6 +336,21 @@ static int vc4_crtc_atomic_check(struct + static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) + { ++ struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); ++ struct drm_device *dev = crtc->dev; ++ ++ if (crtc->state->event) { ++ unsigned long flags; ++ ++ crtc->state->event->pipe = drm_crtc_index(crtc); ++ ++ WARN_ON(drm_crtc_vblank_get(crtc) != 0); ++ ++ spin_lock_irqsave(&dev->event_lock, flags); ++ vc4_crtc->event = crtc->state->event; ++ crtc->state->event = NULL; ++ spin_unlock_irqrestore(&dev->event_lock, flags); ++ } + } + + static void vc4_crtc_handle_page_flip(struct vc4_crtc *vc4_crtc) |