drm/exynos: support drm_wait_vblank feature for VIDI (291257cf) · Commits · 戴 / test

drivers/gpu/drm/exynos/exynos_drm_vidi.c

+21 −1

Original line number	Diff line number	Diff line
		@@ -56,6 +56,7 @@ struct vidi_context {
		unsigned int connected;
		bool vblank_on;
		bool suspended;
		bool direct_vblank;
		struct work_struct work;
		struct mutex lock;
		};
		@@ -224,6 +225,15 @@ static int vidi_enable_vblank(struct device *dev)
		if (!test_and_set_bit(0, &ctx->irq_flags))
		ctx->vblank_on = true;

		ctx->direct_vblank = true;

		/*
		* in case of page flip request, vidi_finish_pageflip function
		* will not be called because direct_vblank is true and then
		* that function will be called by overlay_ops->commit callback
		*/
		schedule_work(&ctx->work);

		return 0;
		}

		@@ -425,7 +435,17 @@ static void vidi_fake_vblank_handler(struct work_struct *work)
		/* refresh rate is about 50Hz. */
		usleep_range(16000, 20000);

		mutex_lock(&ctx->lock);

		if (ctx->direct_vblank) {
		drm_handle_vblank(subdrv->drm_dev, manager->pipe);
		ctx->direct_vblank = false;
		mutex_unlock(&ctx->lock);
		return;
		}

		mutex_unlock(&ctx->lock);

		vidi_finish_pageflip(subdrv->drm_dev, manager->pipe);
		}

+10 −0

Original line number	Diff line number	Diff line
		@@ -107,6 +107,16 @@ struct drm_exynos_vidi_connection {
		uint64_t edid;
		};

		/* Indicate Exynos specific vblank flags */
		enum e_drm_exynos_vblank {
		/*
		* this flags is used for Virtual Display module
		* to use DRM_IOCTL_WAIT_VBLANK feature. for this,
		* user should set this flag to vblwait->request.type
		*/
		_DRM_VBLANK_EXYNOS_VIDI = 2,
		};

		/* memory type definitions. */
		enum e_drm_exynos_gem_mem_type {
		/* Physically Continuous memory and used as default. */