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From: Thomas Zimmermann <tzimmermann@suse.de>
To: airlied@linux.ie, daniel@ffwll.ch, kraxel@redhat.com,
	maarten.lankhorst@linux.intel.com, mripard@kernel.org,
	hdegoede@redhat.com, david@lechnology.com, noralf@tronnes.org,
	sean@poorly.run, oleksandr_andrushchenko@epam.com,
	sam@ravnborg.org, laurent.pinchart@ideasonboard.com,
	emil.velikov@collabora.com
Cc: xen-devel@lists.xenproject.org,
	Thomas Zimmermann <tzimmermann@suse.de>,
	dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org
Subject: [Xen-devel] [PATCH v2 3/4] drm/cirrus: Let DRM core send VBLANK events
Date: Wed, 15 Jan 2020 13:52:25 +0100
Message-ID: <20200115125226.13843-4-tzimmermann@suse.de> (raw)
In-Reply-To: <20200115125226.13843-1-tzimmermann@suse.de>

In drm_atomic_helper_fake_vblank(), the DRM core sends out VBLANK
events if struct drm_crtc_state.no_vblank is enabled. Replace cirrus'
VBLANK events with the DRM core's functionality.

v2:
	* set struct_drm_crtc_state.no_vblank in cirrus_pipe_check()

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/cirrus/cirrus.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index 248c9f765c45..5ff15e8a2a0a 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -38,7 +38,6 @@
 #include <drm/drm_modeset_helper_vtables.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_simple_kms_helper.h>
-#include <drm/drm_vblank.h>
 
 #define DRIVER_NAME "cirrus"
 #define DRIVER_DESC "qemu cirrus vga"
@@ -404,6 +403,8 @@ static int cirrus_pipe_check(struct drm_simple_display_pipe *pipe,
 {
 	struct drm_framebuffer *fb = plane_state->fb;
 
+	crtc_state->no_vblank = true;
+
 	if (!fb)
 		return 0;
 	return cirrus_check_size(fb->width, fb->height, fb);
@@ -434,13 +435,6 @@ static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
 
 	if (drm_atomic_helper_damage_merged(old_state, state, &rect))
 		cirrus_fb_blit_rect(pipe->plane.state->fb, &rect);
-
-	if (crtc->state->event) {
-		spin_lock_irq(&crtc->dev->event_lock);
-		drm_crtc_send_vblank_event(crtc, crtc->state->event);
-		crtc->state->event = NULL;
-		spin_unlock_irq(&crtc->dev->event_lock);
-	}
 }
 
 static const struct drm_simple_display_pipe_funcs cirrus_pipe_funcs = {
-- 
2.24.1


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  parent reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-15 12:52 [Xen-devel] [PATCH v2 0/4] Use no_vblank property for drivers without VBLANK Thomas Zimmermann
2020-01-15 12:52 ` [Xen-devel] [PATCH v2 1/4] drm: Document struct drm_crtc_state.no_vblank for faking VBLANK events Thomas Zimmermann
2020-01-15 12:52 ` [Xen-devel] [PATCH v2 2/4] drm/ast: Set struct drm_crtc_state.no_vblank in atomic_check() Thomas Zimmermann
2020-01-15 12:52 ` Thomas Zimmermann [this message]
2020-01-15 12:52 ` [Xen-devel] [PATCH v2 4/4] drm/simple-kms: Let DRM core send VBLANK events by default Thomas Zimmermann
2020-01-16  6:41   ` Daniel Vetter
2020-01-16  7:37     ` Thomas Zimmermann
2020-01-16 17:22       ` Emil Velikov
2020-01-16 23:59         ` Daniel Vetter
2020-01-17  7:17           ` Thomas Zimmermann
2020-01-22  8:11             ` Daniel Vetter
2020-01-22  8:20               ` Thomas Zimmermann
2020-01-15 13:04 ` [Xen-devel] [PATCH v2 0/4] Use no_vblank property for drivers without VBLANK Hans de Goede
  -- strict thread matches above, loose matches on Subject: below --
2020-01-13 10:38 Thomas Zimmermann
2020-01-13 10:38 ` [Xen-devel] [PATCH v2 3/4] drm/cirrus: Let DRM core send VBLANK events Thomas Zimmermann

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