Merge branch 'exynos-drm-next' of...

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;
@@ -614,8 +642,10 @@ 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,
 };
 
 
@@ -623,6 +653,7 @@ 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

@@ -25,14 +25,9 @@ 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);
 }
 
@@ -40,20 +35,10 @@ 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. */

drivers/gpu/drm/exynos/exynos_drm_drv.c

@@ -13,6 +13,8 @@
 
 #include <linux/pm_runtime.h>
 #include <drm/drmP.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc_helper.h>
 
 #include <linux/component.h>
@@ -36,6 +38,98 @@
 #define DRIVER_MAJOR	1
 #define DRIVER_MINOR	0
 
+struct exynos_atomic_commit {
+	struct work_struct	work;
+	struct drm_device	*dev;
+	struct drm_atomic_state *state;
+	u32			crtcs;
+};
+
+static void exynos_atomic_wait_for_commit(struct drm_atomic_state *state)
+{
+	struct drm_crtc_state *crtc_state;
+	struct drm_crtc *crtc;
+	int i, ret;
+
+	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+		struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+
+		if (!crtc->state->enable)
+			continue;
+
+		ret = drm_crtc_vblank_get(crtc);
+		if (ret)
+			continue;
+
+		exynos_drm_crtc_wait_pending_update(exynos_crtc);
+		drm_crtc_vblank_put(crtc);
+	}
+}
+
+static void exynos_atomic_commit_complete(struct exynos_atomic_commit *commit)
+{
+	struct drm_device *dev = commit->dev;
+	struct exynos_drm_private *priv = dev->dev_private;
+	struct drm_atomic_state *state = commit->state;
+	struct drm_plane *plane;
+	struct drm_crtc *crtc;
+	struct drm_plane_state *plane_state;
+	struct drm_crtc_state *crtc_state;
+	int i;
+
+	drm_atomic_helper_commit_modeset_disables(dev, state);
+
+	drm_atomic_helper_commit_modeset_enables(dev, state);
+
+	/*
+	 * Exynos can't update planes with CRTCs and encoders disabled,
+	 * its updates routines, specially for FIMD, requires the clocks
+	 * to be enabled. So it is necessary to handle the modeset operations
+	 * *before* the commit_planes() step, this way it will always
+	 * have the relevant clocks enabled to perform the update.
+	 */
+
+	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+		struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+
+		atomic_set(&exynos_crtc->pending_update, 0);
+	}
+
+	for_each_plane_in_state(state, plane, plane_state, i) {
+		struct exynos_drm_crtc *exynos_crtc =
+						to_exynos_crtc(plane->crtc);
+
+		if (!plane->crtc)
+			continue;
+
+		atomic_inc(&exynos_crtc->pending_update);
+	}
+
+	drm_atomic_helper_commit_planes(dev, state);
+
+	exynos_atomic_wait_for_commit(state);
+
+	drm_atomic_helper_cleanup_planes(dev, state);
+
+	drm_atomic_state_free(state);
+
+	spin_lock(&priv->lock);
+	priv->pending &= ~commit->crtcs;
+	spin_unlock(&priv->lock);
+
+	wake_up_all(&priv->wait);
+
+	kfree(commit);
+}
+
+static void exynos_drm_atomic_work(struct work_struct *work)
+{
+	struct exynos_atomic_commit *commit = container_of(work,
+				struct exynos_atomic_commit, work);
+
+	exynos_atomic_commit_complete(commit);
+}
+
 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 {
 	struct exynos_drm_private *private;
@@ -47,6 +141,9 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 	if (!private)
 		return -ENOMEM;
 
+	init_waitqueue_head(&private->wait);
+	spin_lock_init(&private->lock);
+
 	dev_set_drvdata(dev->dev, dev);
 	dev->dev_private = (void *)private;
 
@@ -149,6 +246,64 @@ static int exynos_drm_unload(struct drm_device *dev)
 	return 0;
 }
 
+static int commit_is_pending(struct exynos_drm_private *priv, u32 crtcs)
+{
+	bool pending;
+
+	spin_lock(&priv->lock);
+	pending = priv->pending & crtcs;
+	spin_unlock(&priv->lock);
+
+	return pending;
+}
+
+int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
+			 bool async)
+{
+	struct exynos_drm_private *priv = dev->dev_private;
+	struct exynos_atomic_commit *commit;
+	int i, ret;
+
+	commit = kzalloc(sizeof(*commit), GFP_KERNEL);
+	if (!commit)
+		return -ENOMEM;
+
+	ret = drm_atomic_helper_prepare_planes(dev, state);
+	if (ret) {
+		kfree(commit);
+		return ret;
+	}
+
+	/* This is the point of no return */
+
+	INIT_WORK(&commit->work, exynos_drm_atomic_work);
+	commit->dev = dev;
+	commit->state = state;
+
+	/* Wait until all affected CRTCs have completed previous commits and
+	 * mark them as pending.
+	 */
+	for (i = 0; i < dev->mode_config.num_crtc; ++i) {
+		if (state->crtcs[i])
+			commit->crtcs |= 1 << drm_crtc_index(state->crtcs[i]);
+	}
+
+	wait_event(priv->wait, !commit_is_pending(priv, commit->crtcs));
+
+	spin_lock(&priv->lock);
+	priv->pending |= commit->crtcs;
+	spin_unlock(&priv->lock);
+
+	drm_atomic_helper_swap_state(dev, state);
+
+	if (async)
+		schedule_work(&commit->work);
+	else
+		exynos_atomic_commit_complete(commit);
+
+	return 0;
+}
+
 static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
 {
 	struct drm_connector *connector;
@@ -248,25 +403,25 @@ static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
 
 static const struct drm_ioctl_desc exynos_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl,
+			DRM_UNLOCKED | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl,
 			DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
-			exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
-	DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
-			vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
-			exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
-			exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
-			exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
-			exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
-			exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
-			exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
-			exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, exynos_g2d_get_ver_ioctl,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, exynos_g2d_set_cmdlist_ioctl,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY, exynos_drm_ipp_get_property,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY, exynos_drm_ipp_set_property,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF, exynos_drm_ipp_queue_buf,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL, exynos_drm_ipp_cmd_ctrl,
+			DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
 };
 
 static const struct file_operations exynos_drm_driver_fops = {
@@ -283,11 +438,10 @@ static const struct file_operations exynos_drm_driver_fops = {
 };
 
 static struct drm_driver exynos_drm_driver = {
-	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
+	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME
+				  | DRIVER_ATOMIC | DRIVER_RENDER,
 	.load			= exynos_drm_load,
 	.unload			= exynos_drm_unload,
-	.suspend		= exynos_drm_suspend,
-	.resume			= exynos_drm_resume,
 	.open			= exynos_drm_open,
 	.preclose		= exynos_drm_preclose,
 	.lastclose		= exynos_drm_lastclose,

drivers/gpu/drm/exynos/exynos_drm_drv.h

@@ -74,6 +74,7 @@ struct exynos_drm_plane {
 	unsigned int v_ratio;
 	dma_addr_t dma_addr[MAX_FB_BUFFER];
 	unsigned int zpos;
+	struct drm_framebuffer *pending_fb;
 };
 
 /*
@@ -87,6 +88,8 @@ struct exynos_drm_plane {
  * @disable_vblank: specific driver callback for disabling vblank interrupt.
  * @wait_for_vblank: wait for vblank interrupt to make sure that
  *	hardware overlay is updated.
+ * @atomic_begin: prepare a window to receive a update
+ * @atomic_flush: mark the end of a window update
  * @update_plane: apply hardware specific overlay data to registers.
  * @disable_plane: disable hardware specific overlay.
  * @te_handler: trigger to transfer video image at the tearing effect
@@ -107,10 +110,14 @@ struct exynos_drm_crtc_ops {
 	int (*enable_vblank)(struct exynos_drm_crtc *crtc);
 	void (*disable_vblank)(struct exynos_drm_crtc *crtc);
 	void (*wait_for_vblank)(struct exynos_drm_crtc *crtc);
+	void (*atomic_begin)(struct exynos_drm_crtc *crtc,
+			      struct exynos_drm_plane *plane);
 	void (*update_plane)(struct exynos_drm_crtc *crtc,
 			     struct exynos_drm_plane *plane);
 	void (*disable_plane)(struct exynos_drm_crtc *crtc,
 			      struct exynos_drm_plane *plane);
+	void (*atomic_flush)(struct exynos_drm_crtc *crtc,
+			      struct exynos_drm_plane *plane);
 	void (*te_handler)(struct exynos_drm_crtc *crtc);
 	void (*clock_enable)(struct exynos_drm_crtc *crtc, bool enable);
 };
@@ -129,6 +136,8 @@ struct exynos_drm_crtc_ops {
  *	this pipe value.
  * @enabled: if the crtc is enabled or not
  * @event: vblank event that is currently queued for flip
+ * @wait_update: wait all pending planes updates to finish
+ * @pending_update: number of pending plane updates in this crtc
  * @ops: pointer to callbacks for exynos drm specific functionality
  * @ctx: A pointer to the crtc's implementation specific context
  */
@@ -136,9 +145,9 @@ struct exynos_drm_crtc {
 	struct drm_crtc			base;
 	enum exynos_drm_output_type	type;
 	unsigned int			pipe;
-	bool				enabled;
-	wait_queue_head_t		pending_flip_queue;
 	struct drm_pending_vblank_event	*event;
+	wait_queue_head_t		wait_update;
+	atomic_t			pending_update;
 	const struct exynos_drm_crtc_ops	*ops;
 	void				*ctx;
 };
@@ -164,6 +173,9 @@ struct drm_exynos_file_private {
  * @da_space_size: size of device address space.
  *	if 0 then default value is used for it.
  * @pipe: the pipe number for this crtc/manager.
+ * @pending: the crtcs that have pending updates to finish
+ * @lock: protect access to @pending
+ * @wait: wait an atomic commit to finish
  */
 struct exynos_drm_private {
 	struct drm_fb_helper *fb_helper;
@@ -179,6 +191,11 @@ struct exynos_drm_private {
 	unsigned long da_space_size;
 
 	unsigned int pipe;
+
+	/* for atomic commit */
+	u32			pending;
+	spinlock_t		lock;
+	wait_queue_head_t	wait;
 };
 
 /*
@@ -237,6 +254,9 @@ static inline int exynos_dpi_bind(struct drm_device *dev,
 }
 #endif
 
+int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
+			 bool async);
+
 
 extern struct platform_driver fimd_driver;
 extern struct platform_driver exynos5433_decon_driver;

drivers/gpu/drm/exynos/exynos_drm_fb.c

@@ -267,41 +267,6 @@ static void exynos_drm_output_poll_changed(struct drm_device *dev)
 		exynos_drm_fbdev_init(dev);
 }
 
-static int exynos_atomic_commit(struct drm_device *dev,
-				struct drm_atomic_state *state,
-				bool async)
-{
-	int ret;
-
-	ret = drm_atomic_helper_prepare_planes(dev, state);
-	if (ret)
-		return ret;
-
-	/* This is the point of no return */
-
-	drm_atomic_helper_swap_state(dev, state);
-
-	drm_atomic_helper_commit_modeset_disables(dev, state);
-
-	drm_atomic_helper_commit_modeset_enables(dev, state);
-
-	/*
-	 * Exynos can't update planes with CRTCs and encoders disabled,
-	 * its updates routines, specially for FIMD, requires the clocks
-	 * to be enabled. So it is necessary to handle the modeset operations
-	 * *before* the commit_planes() step, this way it will always
-	 * have the relevant clocks enabled to perform the update.
-	 */
-
-	drm_atomic_helper_commit_planes(dev, state);
-
-	drm_atomic_helper_cleanup_planes(dev, state);
-
-	drm_atomic_state_free(state);
-
-	return 0;
-}
-
 static const struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
 	.fb_create = exynos_user_fb_create,
 	.output_poll_changed = exynos_drm_output_poll_changed,

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -59,6 +59,7 @@
 #define VIDWnALPHA1(win)	(VIDW_ALPHA + 0x04 + (win) * 8)
 
 #define VIDWx_BUF_START(win, buf)	(VIDW_BUF_START(buf) + (win) * 8)
+#define VIDWx_BUF_START_S(win, buf)	(VIDW_BUF_START_S(buf) + (win) * 8)
 #define VIDWx_BUF_END(win, buf)		(VIDW_BUF_END(buf) + (win) * 8)
 #define VIDWx_BUF_SIZE(win, buf)	(VIDW_BUF_SIZE(buf) + (win) * 4)
 
@@ -187,6 +188,14 @@ static const struct of_device_id fimd_driver_dt_match[] = {
 };
 MODULE_DEVICE_TABLE(of, fimd_driver_dt_match);
 
+static const uint32_t fimd_formats[] = {
+	DRM_FORMAT_C8,
+	DRM_FORMAT_XRGB1555,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+};
+
 static inline struct fimd_driver_data *drm_fimd_get_driver_data(
 	struct platform_device *pdev)
 {
@@ -591,6 +600,16 @@ static void fimd_shadow_protect_win(struct fimd_context *ctx,
 {
 	u32 reg, bits, val;
 
+	/*
+	 * SHADOWCON/PRTCON register is used for enabling timing.
+	 *
+	 * for example, once only width value of a register is set,
+	 * if the dma is started then fimd hardware could malfunction so
+	 * with protect window setting, the register fields with prefix '_F'
+	 * wouldn't be updated at vsync also but updated once unprotect window
+	 * is set.
+	 */
+
 	if (ctx->driver_data->has_shadowcon) {
 		reg = SHADOWCON;
 		bits = SHADOWCON_WINx_PROTECT(win);
@@ -607,6 +626,28 @@ static void fimd_shadow_protect_win(struct fimd_context *ctx,
 	writel(val, ctx->regs + reg);
 }
 
+static void fimd_atomic_begin(struct exynos_drm_crtc *crtc,
+			       struct exynos_drm_plane *plane)
+{
+	struct fimd_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	fimd_shadow_protect_win(ctx, plane->zpos, true);
+}
+
+static void fimd_atomic_flush(struct exynos_drm_crtc *crtc,
+			       struct exynos_drm_plane *plane)
+{
+	struct fimd_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	fimd_shadow_protect_win(ctx, plane->zpos, false);
+}
+
 static void fimd_update_plane(struct exynos_drm_crtc *crtc,
 			      struct exynos_drm_plane *plane)
 {
@@ -622,20 +663,6 @@ static void fimd_update_plane(struct exynos_drm_crtc *crtc,
 	if (ctx->suspended)
 		return;
 
-	/*
-	 * SHADOWCON/PRTCON register is used for enabling timing.
-	 *
-	 * for example, once only width value of a register is set,
-	 * if the dma is started then fimd hardware could malfunction so
-	 * with protect window setting, the register fields with prefix '_F'
-	 * wouldn't be updated at vsync also but updated once unprotect window
-	 * is set.
-	 */
-
-	/* protect windows */
-	fimd_shadow_protect_win(ctx, win, true);
-
-
 	offset = plane->src_x * bpp;
 	offset += plane->src_y * pitch;
 
@@ -707,9 +734,6 @@ static void fimd_update_plane(struct exynos_drm_crtc *crtc,
 	if (ctx->driver_data->has_shadowcon)
 		fimd_enable_shadow_channel_path(ctx, win, true);
 
-	/* Enable DMA channel and unprotect windows */
-	fimd_shadow_protect_win(ctx, win, false);
-
 	if (ctx->i80_if)
 		atomic_set(&ctx->win_updated, 1);
 }
@@ -723,16 +747,10 @@ static void fimd_disable_plane(struct exynos_drm_crtc *crtc,
 	if (ctx->suspended)
 		return;
 
-	/* protect windows */
-	fimd_shadow_protect_win(ctx, win, true);
-
 	fimd_enable_video_output(ctx, win, false);
 
 	if (ctx->driver_data->has_shadowcon)
 		fimd_enable_shadow_channel_path(ctx, win, false);
-
-	/* unprotect windows */
-	fimd_shadow_protect_win(ctx, win, false);
 }
 
 static void fimd_enable(struct exynos_drm_crtc *crtc)
@@ -875,8 +893,10 @@ static const struct exynos_drm_crtc_ops fimd_crtc_ops = {
 	.enable_vblank = fimd_enable_vblank,
 	.disable_vblank = fimd_disable_vblank,
 	.wait_for_vblank = fimd_wait_for_vblank,
+	.atomic_begin = fimd_atomic_begin,
 	.update_plane = fimd_update_plane,
 	.disable_plane = fimd_disable_plane,
+	.atomic_flush = fimd_atomic_flush,
 	.te_handler = fimd_te_handler,
 	.clock_enable = fimd_dp_clock_enable,
 };
@@ -884,7 +904,8 @@ static const struct exynos_drm_crtc_ops fimd_crtc_ops = {
 static irqreturn_t fimd_irq_handler(int irq, void *dev_id)
 {
 	struct fimd_context *ctx = (struct fimd_context *)dev_id;
-	u32 val, clear_bit;
+	u32 val, clear_bit, start, start_s;
+	int win;
 
 	val = readl(ctx->regs + VIDINTCON1);
 
@@ -896,15 +917,25 @@ static irqreturn_t fimd_irq_handler(int irq, void *dev_id)
 	if (ctx->pipe < 0 || !ctx->drm_dev)
 		goto out;
 
-	if (ctx->i80_if) {
-		exynos_drm_crtc_finish_pageflip(ctx->crtc);
+	if (!ctx->i80_if)
+		drm_crtc_handle_vblank(&ctx->crtc->base);
+
+	for (win = 0 ; win < WINDOWS_NR ; win++) {
+		struct exynos_drm_plane *plane = &ctx->planes[win];
 
+		if (!plane->pending_fb)
+			continue;
+
+		start = readl(ctx->regs + VIDWx_BUF_START(win, 0));
+		start_s = readl(ctx->regs + VIDWx_BUF_START_S(win, 0));
+		if (start == start_s)
+			exynos_drm_crtc_finish_update(ctx->crtc, plane);
+	}
+
+	if (ctx->i80_if) {
 		/* Exits triggering mode */
 		atomic_set(&ctx->triggering, 0);
 	} else {
-		drm_crtc_handle_vblank(&ctx->crtc->base);
-		exynos_drm_crtc_finish_pageflip(ctx->crtc);
-
 		/* set wait vsync event to zero and wake up queue. */
 		if (atomic_read(&ctx->wait_vsync_event)) {
 			atomic_set(&ctx->wait_vsync_event, 0);
@@ -933,7 +964,8 @@ static int fimd_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, fimd_formats,
+					ARRAY_SIZE(fimd_formats), zpos);
 		if (ret)
 			return ret;
 	}

drivers/gpu/drm/exynos/exynos_drm_gem.c

@@ -668,7 +668,7 @@ exynos_drm_gem_prime_import_sg_table(struct drm_device *dev,
 	exynos_gem_obj = exynos_drm_gem_init(dev, attach->dmabuf->size);
 	if (IS_ERR(exynos_gem_obj)) {
 		ret = PTR_ERR(exynos_gem_obj);
-		goto err;
+		return ERR_PTR(ret);
 	}
 
 	exynos_gem_obj->dma_addr = sg_dma_address(sgt->sgl);

drivers/gpu/drm/exynos/exynos_drm_plane.c

@@ -20,12 +20,6 @@
 #include "exynos_drm_gem.h"
 #include "exynos_drm_plane.h"
 
-static const uint32_t formats[] = {
-	DRM_FORMAT_XRGB8888,
-	DRM_FORMAT_ARGB8888,
-	DRM_FORMAT_NV12,
-};
-
 /*
  * This function is to get X or Y size shown via screen. This needs length and
  * start position of CRTC.
@@ -168,6 +162,8 @@ static void exynos_plane_atomic_update(struct drm_plane *plane,
 			      state->src_x >> 16, state->src_y >> 16,
 			      state->src_w >> 16, state->src_h >> 16);
 
+	exynos_plane->pending_fb = state->fb;
+
 	if (exynos_crtc->ops->update_plane)
 		exynos_crtc->ops->update_plane(exynos_crtc, exynos_plane);
 }
@@ -215,13 +211,14 @@ static void exynos_plane_attach_zpos_property(struct drm_plane *plane,
 int exynos_plane_init(struct drm_device *dev,
 		      struct exynos_drm_plane *exynos_plane,
 		      unsigned long possible_crtcs, enum drm_plane_type type,
+		      const uint32_t *formats, unsigned int fcount,
 		      unsigned int zpos)
 {
 	int err;
 
 	err = drm_universal_plane_init(dev, &exynos_plane->base, possible_crtcs,
-				       &exynos_plane_funcs, formats,
-				       ARRAY_SIZE(formats), type);
+				       &exynos_plane_funcs, formats, fcount,
+				       type);
 	if (err) {
 		DRM_ERROR("failed to initialize plane\n");
 		return err;

drivers/gpu/drm/exynos/exynos_drm_plane.h

@@ -12,4 +12,5 @@
 int exynos_plane_init(struct drm_device *dev,
 		      struct exynos_drm_plane *exynos_plane,
 		      unsigned long possible_crtcs, enum drm_plane_type type,
+		      const uint32_t *formats, unsigned int fcount,
 		      unsigned int zpos);

drivers/gpu/drm/exynos/exynos_drm_vidi.c

@@ -83,6 +83,12 @@ static const char fake_edid_info[] = {
 	0x00, 0x00, 0x00, 0x06
 };
 
+static const uint32_t formats[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_NV12,
+};
+
 static int vidi_enable_vblank(struct exynos_drm_crtc *crtc)
 {
 	struct vidi_context *ctx = crtc->ctx;
@@ -179,6 +185,7 @@ static void vidi_fake_vblank_handler(struct work_struct *work)
 {
 	struct vidi_context *ctx = container_of(work, struct vidi_context,
 					work);
+	int win;
 
 	if (ctx->pipe < 0)
 		return;
@@ -197,7 +204,14 @@ static void vidi_fake_vblank_handler(struct work_struct *work)
 
 	mutex_unlock(&ctx->lock);
 
-	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);
+	}
 }
 
 static int vidi_show_connection(struct device *dev,
@@ -435,7 +449,8 @@ static int vidi_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, formats,
+					ARRAY_SIZE(formats), zpos);
 		if (ret)
 			return ret;
 	}

drivers/gpu/drm/exynos/exynos_mixer.c

@@ -43,6 +43,7 @@
 
 #define MIXER_WIN_NR		3
 #define MIXER_DEFAULT_WIN	0
+#define VP_DEFAULT_WIN		2
 
 /* The pixelformats that are natively supported by the mixer. */
 #define MXR_FORMAT_RGB565	4
@@ -74,6 +75,19 @@ enum mixer_flag_bits {
 	MXR_BIT_VSYNC,
 };
 
+static const uint32_t mixer_formats[] = {
+	DRM_FORMAT_XRGB4444,
+	DRM_FORMAT_XRGB1555,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+};
+
+static const uint32_t vp_formats[] = {
+	DRM_FORMAT_NV12,
+	DRM_FORMAT_NV21,
+};
+
 struct mixer_context {
 	struct platform_device *pdev;
 	struct device		*dev;
@@ -716,6 +730,7 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
 	struct mixer_context *ctx = arg;
 	struct mixer_resources *res = &ctx->mixer_res;
 	u32 val, base, shadow;
+	int win;
 
 	spin_lock(&res->reg_slock);
 
@@ -742,7 +757,14 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
 		}
 
 		drm_crtc_handle_vblank(&ctx->crtc->base);
-		exynos_drm_crtc_finish_pageflip(ctx->crtc);
+		for (win = 0 ; win < MIXER_WIN_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)) {
@@ -1163,7 +1185,6 @@ static int mixer_bind(struct device *dev, struct device *manager, void *data)
 	struct mixer_context *ctx = dev_get_drvdata(dev);
 	struct drm_device *drm_dev = data;
 	struct exynos_drm_plane *exynos_plane;
-	enum drm_plane_type type;
 	unsigned int zpos;
 	int ret;
 
@@ -1172,10 +1193,23 @@ static int mixer_bind(struct device *dev, struct device *manager, void *data)
 		return ret;
 
 	for (zpos = 0; zpos < MIXER_WIN_NR; zpos++) {
+		enum drm_plane_type type;
+		const uint32_t *formats;
+		unsigned int fcount;
+
 		type = (zpos == MIXER_DEFAULT_WIN) ? DRM_PLANE_TYPE_PRIMARY :
 						DRM_PLANE_TYPE_OVERLAY;
+		if (zpos < VP_DEFAULT_WIN) {
+			formats = mixer_formats;
+			fcount = ARRAY_SIZE(mixer_formats);
+		} else {
+			formats = vp_formats;
+			fcount = ARRAY_SIZE(vp_formats);
+		}
+
 		ret = exynos_plane_init(drm_dev, &ctx->planes[zpos],
-					1 << ctx->pipe, type, zpos);
+					1 << ctx->pipe, type, formats, fcount,
+					zpos);
 		if (ret)
 			return ret;
 	}

include/video/samsung_fimd.h

@@ -296,6 +296,7 @@
 
 /* Video buffer addresses */
 #define VIDW_BUF_START(_buff)			(0xA0 + ((_buff) * 8))
+#define VIDW_BUF_START_S(_buff)			(0x40A0 + ((_buff) * 8))
 #define VIDW_BUF_START1(_buff)			(0xA4 + ((_buff) * 8))
 #define VIDW_BUF_END(_buff)			(0xD0 + ((_buff) * 8))
 #define VIDW_BUF_END1(_buff)			(0xD4 + ((_buff) * 8))