Merge branch 'modesetting-gem'

1 files changed, 193 insertions, 0 deletions

diff --git a/linux-core/nv50_cursor.c b/linux-core/nv50_cursor.c
new file mode 100644
index 00000000..091c94fe
--- /dev/null
+++ b/linux-core/nv50_cursor.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2008 Maarten Maathuis.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "nv50_cursor.h"
+#include "nv50_crtc.h"
+#include "nv50_display.h"
+
+static int nv50_cursor_enable(struct nv50_crtc *crtc)
+{
+	struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
+
+	NV50_DEBUG("\n");
+
+	NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), 0x2000);
+	while(NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK);
+
+	NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_ON);
+	while((NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK)
+		!= NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_ACTIVE);
+
+	crtc->cursor->enabled = true;
+
+	return 0;
+}
+
+static int nv50_cursor_disable(struct nv50_crtc *crtc)
+{
+	struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
+
+	NV50_DEBUG("\n");
+
+	NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), 0);
+	while(NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK);
+
+	crtc->cursor->enabled = false;
+
+	return 0;
+}
+
+/* Calling update or changing the stored cursor state is left to the higher level ioctl's. */
+static int nv50_cursor_show(struct nv50_crtc *crtc)
+{
+	struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
+	uint32_t offset = crtc->index * 0x400;
+
+	NV50_DEBUG("\n");
+
+	/* Better not show the cursor when we have none. */
+	/* TODO: is cursor offset actually set? */
+	if (!crtc->cursor->block) {
+		DRM_ERROR("No cursor available on crtc %d\n", crtc->index);
+		return -EINVAL;
+	}
+
+	OUT_MODE(NV50_CRTC0_CURSOR_CTRL + offset, NV50_CRTC0_CURSOR_CTRL_SHOW);
+
+	return 0;
+}
+
+static int nv50_cursor_hide(struct nv50_crtc *crtc)
+{
+	struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
+	uint32_t offset = crtc->index * 0x400;
+
+	NV50_DEBUG("\n");
+
+	OUT_MODE(NV50_CRTC0_CURSOR_CTRL + offset, NV50_CRTC0_CURSOR_CTRL_HIDE);
+
+	return 0;
+}
+
+static int nv50_cursor_set_pos(struct nv50_crtc *crtc, int x, int y)
+{
+	struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
+
+	NV_WRITE(NV50_HW_CURSOR_POS(crtc->index), ((y & 0xFFFF) << 16) | (x & 0xFFFF));
+	/* Needed to make the cursor move. */
+	NV_WRITE(NV50_HW_CURSOR_POS_CTRL(crtc->index), 0);
+
+	return 0;
+}
+
+static int nv50_cursor_set_offset(struct nv50_crtc *crtc)
+{
+	struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
+
+	NV50_DEBUG("\n");
+
+	if (crtc->cursor->block) {
+		OUT_MODE(NV50_CRTC0_CURSOR_OFFSET + crtc->index * 0x400, crtc->cursor->block->start >> 8);
+	} else {
+		OUT_MODE(NV50_CRTC0_CURSOR_OFFSET + crtc->index * 0x400, 0);
+	}
+
+	return 0;
+}
+
+static int nv50_cursor_set_bo(struct nv50_crtc *crtc, drm_handle_t handle)
+{
+	struct mem_block *block = NULL;
+	struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
+
+	NV50_DEBUG("\n");
+
+	block = find_block_by_handle(dev_priv->fb_heap, handle);
+
+	if (block) {
+		bool first_time = false;
+		if (!crtc->cursor->block)
+			first_time = true;
+
+		crtc->cursor->block = block;
+
+		/* set the cursor offset cursor */
+		if (first_time) {
+			crtc->cursor->set_offset(crtc);
+			if (crtc->cursor->visible)
+				crtc->cursor->show(crtc);
+		}
+	} else {
+		DRM_ERROR("Unable to find cursor bo with handle 0x%X\n", handle);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int nv50_cursor_create(struct nv50_crtc *crtc)
+{
+	NV50_DEBUG("\n");
+
+	if (!crtc)
+		return -EINVAL;
+
+	crtc->cursor = kzalloc(sizeof(struct nv50_cursor), GFP_KERNEL);
+	if (!crtc->cursor)
+		return -ENOMEM;
+
+	/* function pointers */
+	crtc->cursor->show = nv50_cursor_show;
+	crtc->cursor->hide = nv50_cursor_hide;
+	crtc->cursor->set_pos = nv50_cursor_set_pos;
+	crtc->cursor->set_offset = nv50_cursor_set_offset;
+	crtc->cursor->set_bo = nv50_cursor_set_bo;
+	crtc->cursor->enable = nv50_cursor_enable;
+	crtc->cursor->disable = nv50_cursor_disable;
+
+	return 0;
+}
+
+int nv50_cursor_destroy(struct nv50_crtc *crtc)
+{
+	int rval = 0;
+
+	NV50_DEBUG("\n");
+
+	if (!crtc)
+		return -EINVAL;
+
+	if (crtc->cursor->enabled) {
+		rval = crtc->cursor->disable(crtc);
+		if (rval != 0)
+			return rval;
+	}
+
+	kfree(crtc->cursor);
+	crtc->cursor = NULL;
+
+	return 0;
+}