Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/…

…kernel/git/daeinki/drm-exynos into drm-next

This is a second pull-request which adds last part of
atomic modeset/pageflip support, render node support,
clean-up, and fix-up.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: fix build warning to exynos_drm_gem.c
  drm/exynos: Properly report supported formats for each device
  drm/exynos: add render node support
  drm/exynos: implement atomic_{begin/flush} of DECON
  drm/exynos: remove legacy ->suspend()/resume()
  drm/exynos: Enable atomic modesetting feature
  drm/exynos: remove wait queue for pending page flip
  drm/exynos: wait all planes updates to finish
  drm/exynos: add atomic asynchronous commit
  drm/exynos: fimd: only finish update if START == START_S
  drm/exynos: add macro to get the address of START_S reg
  drm/exynos: check for pending fb before finish update
  drm/exynos: fimd: move window protect code to prepare/cleanup_plane
  drm/exynos: add prepare and cleanup phases for planes
  drm/exynos: fimd: unify call to exynos_drm_crtc_finish_pageflip()
  drm/exynos: don't track enabled state at exynos_crtc

drivers/gpu/drm/exynos/exynos5433_drm_decon.c

@@ -54,6 +54,13 @@ static const char * const decon_clks_name[] = {
 	"sclk_decon_eclk",
 };
 
+static const uint32_t decon_formats[] = {
+	DRM_FORMAT_XRGB1555,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+};
+
 static int decon_enable_vblank(struct exynos_drm_crtc *crtc)
 {
 	struct decon_context *ctx = crtc->ctx;
@@ -219,6 +226,17 @@ static void decon_shadow_protect_win(struct decon_context *ctx, int win,
 	writel(val, ctx->addr + DECON_SHADOWCON);
 }
 
+static void decon_atomic_begin(struct exynos_drm_crtc *crtc,
+					struct exynos_drm_plane *plane)
+{
+	struct decon_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	decon_shadow_protect_win(ctx, plane->zpos, true);
+}
+
 static void decon_update_plane(struct exynos_drm_crtc *crtc,
 			       struct exynos_drm_plane *plane)
 {
@@ -232,8 +250,6 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
 	if (ctx->suspended)
 		return;
 
-	decon_shadow_protect_win(ctx, win, true);
-
 	val = COORDINATE_X(plane->crtc_x) | COORDINATE_Y(plane->crtc_y);
 	writel(val, ctx->addr + DECON_VIDOSDxA(win));
 
@@ -265,15 +281,10 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
 	val |= WINCONx_ENWIN_F;
 	writel(val, ctx->addr + DECON_WINCONx(win));
 
-	decon_shadow_protect_win(ctx, win, false);
-
 	/* standalone update */
 	val = readl(ctx->addr + DECON_UPDATE);
 	val |= STANDALONE_UPDATE_F;
 	writel(val, ctx->addr + DECON_UPDATE);
-
-	if (ctx->i80_if)
-		atomic_set(&ctx->win_updated, 1);
 }
 
 static void decon_disable_plane(struct exynos_drm_crtc *crtc,
@@ -301,6 +312,20 @@ static void decon_disable_plane(struct exynos_drm_crtc *crtc,
 	writel(val, ctx->addr + DECON_UPDATE);
 }
 
+static void decon_atomic_flush(struct exynos_drm_crtc *crtc,
+				struct exynos_drm_plane *plane)
+{
+	struct decon_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	decon_shadow_protect_win(ctx, plane->zpos, false);
+
+	if (ctx->i80_if)
+		atomic_set(&ctx->win_updated, 1);
+}
+
 static void decon_swreset(struct decon_context *ctx)
 {
 	unsigned int tries;
@@ -455,8 +480,10 @@ static struct exynos_drm_crtc_ops decon_crtc_ops = {
 	.enable_vblank		= decon_enable_vblank,
 	.disable_vblank		= decon_disable_vblank,
 	.commit			= decon_commit,
+	.atomic_begin		= decon_atomic_begin,
 	.update_plane		= decon_update_plane,
 	.disable_plane		= decon_disable_plane,
+	.atomic_flush		= decon_atomic_flush,
 	.te_handler		= decon_te_irq_handler,
 };
 
@@ -477,7 +504,8 @@ static int decon_bind(struct device *dev, struct device *master, void *data)
 		type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
 							DRM_PLANE_TYPE_OVERLAY;
 		ret = exynos_plane_init(drm_dev, &ctx->planes[zpos],
-				1 << ctx->pipe, type, zpos);
+				1 << ctx->pipe, type, decon_formats,
+				ARRAY_SIZE(decon_formats), zpos);
 		if (ret)
 			return ret;
 	}
@@ -542,13 +570,21 @@ static irqreturn_t decon_lcd_sys_irq_handler(int irq, void *dev_id)
 {
 	struct decon_context *ctx = dev_id;
 	u32 val;
+	int win;
 
 	if (!test_bit(BIT_CLKS_ENABLED, &ctx->enabled))
 		goto out;
 
 	val = readl(ctx->addr + DECON_VIDINTCON1);
 	if (val & VIDINTCON1_INTFRMDONEPEND) {
-		exynos_drm_crtc_finish_pageflip(ctx->crtc);
+		for (win = 0 ; win < WINDOWS_NR ; win++) {
+			struct exynos_drm_plane *plane = &ctx->planes[win];
+
+			if (!plane->pending_fb)
+				continue;
+
+			exynos_drm_crtc_finish_update(ctx->crtc, plane);
+		}
 
 		/* clear */
 		writel(VIDINTCON1_INTFRMDONEPEND,

drivers/gpu/drm/exynos/exynos7_drm_decon.c

@@ -70,6 +70,18 @@ static const struct of_device_id decon_driver_dt_match[] = {
 };
 MODULE_DEVICE_TABLE(of, decon_driver_dt_match);
 
+static const uint32_t decon_formats[] = {
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_RGBX8888,
+	DRM_FORMAT_BGRX8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_RGBA8888,
+	DRM_FORMAT_BGRA8888,
+};
+
 static void decon_wait_for_vblank(struct exynos_drm_crtc *crtc)
 {
 	struct decon_context *ctx = crtc->ctx;
@@ -383,6 +395,17 @@ static void decon_shadow_protect_win(struct decon_context *ctx,
 	writel(val, ctx->regs + SHADOWCON);
 }
 
+static void decon_atomic_begin(struct exynos_drm_crtc *crtc,
+					struct exynos_drm_plane *plane)
+{
+	struct decon_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	decon_shadow_protect_win(ctx, plane->zpos, true);
+}
+
 static void decon_update_plane(struct exynos_drm_crtc *crtc,
 			       struct exynos_drm_plane *plane)
 {
@@ -410,9 +433,6 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
 	 * is set.
 	 */
 
-	/* protect windows */
-	decon_shadow_protect_win(ctx, win, true);
-
 	/* buffer start address */
 	val = (unsigned long)plane->dma_addr[0];
 	writel(val, ctx->regs + VIDW_BUF_START(win));
@@ -510,14 +530,22 @@ static void decon_disable_plane(struct exynos_drm_crtc *crtc,
 	val &= ~WINCONx_ENWIN;
 	writel(val, ctx->regs + WINCON(win));
 
-	/* unprotect windows */
-	decon_shadow_protect_win(ctx, win, false);
-
 	val = readl(ctx->regs + DECON_UPDATE);
 	val |= DECON_UPDATE_STANDALONE_F;
 	writel(val, ctx->regs + DECON_UPDATE);
 }
 
+static void decon_atomic_flush(struct exynos_drm_crtc *crtc,
+					struct exynos_drm_plane *plane)
+{
+	struct decon_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	decon_shadow_protect_win(ctx, plane->zpos, false);
+}
+
 static void decon_init(struct decon_context *ctx)
 {
 	u32 val;
@@ -614,15 +642,18 @@ static const struct exynos_drm_crtc_ops decon_crtc_ops = {
 	.enable_vblank = decon_enable_vblank,
 	.disable_vblank = decon_disable_vblank,
 	.wait_for_vblank = decon_wait_for_vblank,
+	.atomic_begin = decon_atomic_begin,
 	.update_plane = decon_update_plane,
 	.disable_plane = decon_disable_plane,
+	.atomic_flush = decon_atomic_flush,
 };
 
 
 static irqreturn_t decon_irq_handler(int irq, void *dev_id)
 {
 	struct decon_context *ctx = (struct decon_context *)dev_id;
 	u32 val, clear_bit;
+	int win;
 
 	val = readl(ctx->regs + VIDINTCON1);
 
@@ -636,7 +667,14 @@ static irqreturn_t decon_irq_handler(int irq, void *dev_id)
 
 	if (!ctx->i80_if) {
 		drm_crtc_handle_vblank(&ctx->crtc->base);
-		exynos_drm_crtc_finish_pageflip(ctx->crtc);
+		for (win = 0 ; win < WINDOWS_NR ; win++) {
+			struct exynos_drm_plane *plane = &ctx->planes[win];
+
+			if (!plane->pending_fb)
+				continue;
+
+			exynos_drm_crtc_finish_update(ctx->crtc, plane);
+		}
 
 		/* set wait vsync event to zero and wake up queue. */
 		if (atomic_read(&ctx->wait_vsync_event)) {
@@ -667,7 +705,8 @@ static int decon_bind(struct device *dev, struct device *master, void *data)
 		type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
 						DRM_PLANE_TYPE_OVERLAY;
 		ret = exynos_plane_init(drm_dev, &ctx->planes[zpos],
-					1 << ctx->pipe, type, zpos);
+					1 << ctx->pipe, type, decon_formats,
+					ARRAY_SIZE(decon_formats), zpos);
 		if (ret)
 			return ret;
 	}

drivers/gpu/drm/exynos/exynos_drm_crtc.c

@@ -25,35 +25,20 @@ static void exynos_drm_crtc_enable(struct drm_crtc *crtc)
 {
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 
-	if (exynos_crtc->enabled)
-		return;
-
 	if (exynos_crtc->ops->enable)
 		exynos_crtc->ops->enable(exynos_crtc);
 
-	exynos_crtc->enabled = true;
-
 	drm_crtc_vblank_on(crtc);
 }
 
 static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
 {
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 
-	if (!exynos_crtc->enabled)
-		return;
-
-	/* wait for the completion of page flip. */
-	if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
-				(exynos_crtc->event == NULL), HZ/20))
-		exynos_crtc->event = NULL;
-
 	drm_crtc_vblank_off(crtc);
 
 	if (exynos_crtc->ops->disable)
 		exynos_crtc->ops->disable(exynos_crtc);
-
-	exynos_crtc->enabled = false;
 }
 
 static bool
@@ -83,16 +68,32 @@ static void exynos_crtc_atomic_begin(struct drm_crtc *crtc,
 				     struct drm_crtc_state *old_crtc_state)
 {
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+	struct drm_plane *plane;
+
+	exynos_crtc->event = crtc->state->event;
 
-	if (crtc->state->event) {
-		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
-		exynos_crtc->event = crtc->state->event;
+	drm_atomic_crtc_for_each_plane(plane, crtc) {
+		struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+
+		if (exynos_crtc->ops->atomic_begin)
+			exynos_crtc->ops->atomic_begin(exynos_crtc,
+							exynos_plane);
 	}
 }
 
 static void exynos_crtc_atomic_flush(struct drm_crtc *crtc,
 				     struct drm_crtc_state *old_crtc_state)
 {
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+	struct drm_plane *plane;
+
+	drm_atomic_crtc_for_each_plane(plane, crtc) {
+		struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+
+		if (exynos_crtc->ops->atomic_flush)
+			exynos_crtc->ops->atomic_flush(exynos_crtc,
+							exynos_plane);
+	}
 }
 
 static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
@@ -140,13 +141,13 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
 	if (!exynos_crtc)
 		return ERR_PTR(-ENOMEM);
 
-	init_waitqueue_head(&exynos_crtc->pending_flip_queue);
-
 	exynos_crtc->pipe = pipe;
 	exynos_crtc->type = type;
 	exynos_crtc->ops = ops;
 	exynos_crtc->ctx = ctx;
 
+	init_waitqueue_head(&exynos_crtc->wait_update);
+
 	crtc = &exynos_crtc->base;
 
 	private->crtc[pipe] = crtc;
@@ -172,9 +173,6 @@ int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
 	struct exynos_drm_crtc *exynos_crtc =
 		to_exynos_crtc(private->crtc[pipe]);
 
-	if (!exynos_crtc->enabled)
-		return -EPERM;
-
 	if (exynos_crtc->ops->enable_vblank)
 		return exynos_crtc->ops->enable_vblank(exynos_crtc);
 
@@ -187,26 +185,31 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
 	struct exynos_drm_crtc *exynos_crtc =
 		to_exynos_crtc(private->crtc[pipe]);
 
-	if (!exynos_crtc->enabled)
-		return;
-
 	if (exynos_crtc->ops->disable_vblank)
 		exynos_crtc->ops->disable_vblank(exynos_crtc);
 }
 
-void exynos_drm_crtc_finish_pageflip(struct exynos_drm_crtc *exynos_crtc)
+void exynos_drm_crtc_wait_pending_update(struct exynos_drm_crtc *exynos_crtc)
+{
+	wait_event_timeout(exynos_crtc->wait_update,
+			   (atomic_read(&exynos_crtc->pending_update) == 0),
+			   msecs_to_jiffies(50));
+}
+
+void exynos_drm_crtc_finish_update(struct exynos_drm_crtc *exynos_crtc,
+				struct exynos_drm_plane *exynos_plane)
 {
 	struct drm_crtc *crtc = &exynos_crtc->base;
 	unsigned long flags;
 
-	spin_lock_irqsave(&crtc->dev->event_lock, flags);
-	if (exynos_crtc->event) {
+	exynos_plane->pending_fb = NULL;
 
-		drm_crtc_send_vblank_event(crtc, exynos_crtc->event);
-		drm_crtc_vblank_put(crtc);
-		wake_up(&exynos_crtc->pending_flip_queue);
+	if (atomic_dec_and_test(&exynos_crtc->pending_update))
+		wake_up(&exynos_crtc->wait_update);
 
-	}
+	spin_lock_irqsave(&crtc->dev->event_lock, flags);
+	if (exynos_crtc->event)
+		drm_crtc_send_vblank_event(crtc, exynos_crtc->event);
 
 	exynos_crtc->event = NULL;
 	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);

drivers/gpu/drm/exynos/exynos_drm_crtc.h

@@ -25,7 +25,9 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
 					void *context);
 int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe);
 void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe);
-void exynos_drm_crtc_finish_pageflip(struct exynos_drm_crtc *exynos_crtc);
+void exynos_drm_crtc_wait_pending_update(struct exynos_drm_crtc *exynos_crtc);
+void exynos_drm_crtc_finish_update(struct exynos_drm_crtc *exynos_crtc,
+				   struct exynos_drm_plane *exynos_plane);
 void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb);
 
 /* This function gets pipe value to crtc device matched with out_type. */