drm/nvc0: implement fbcon acceleration

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/Makefile

@@ -22,9 +22,10 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
              nv84_crypt.o \
              nv04_instmem.o nv50_instmem.o nvc0_instmem.o \
              nv50_evo.o nv50_crtc.o nv50_dac.o nv50_sor.o \
-             nv50_cursor.o nv50_display.o nv50_fbcon.o \
+             nv50_cursor.o nv50_display.o \
              nv04_dac.o nv04_dfp.o nv04_tv.o nv17_tv.o nv17_tv_modes.o \
-             nv04_crtc.o nv04_display.o nv04_cursor.o nv04_fbcon.o \
+             nv04_crtc.o nv04_display.o nv04_cursor.o \
+             nv04_fbcon.o nv50_fbcon.o nvc0_fbcon.o \
              nv10_gpio.o nv50_gpio.o \
 	     nv50_calc.o \
 	     nv04_pm.o nv50_pm.o nva3_pm.o \

drivers/gpu/drm/nouveau/nouveau_fbcon.c

@@ -68,6 +68,8 @@ nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 		else
 		if (dev_priv->card_type < NV_C0)
 			ret = nv50_fbcon_fillrect(info, rect);
+		else
+			ret = nvc0_fbcon_fillrect(info, rect);
 		mutex_unlock(&dev_priv->channel->mutex);
 	}
 
@@ -98,6 +100,8 @@ nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
 		else
 		if (dev_priv->card_type < NV_C0)
 			ret = nv50_fbcon_copyarea(info, image);
+		else
+			ret = nvc0_fbcon_copyarea(info, image);
 		mutex_unlock(&dev_priv->channel->mutex);
 	}
 
@@ -128,6 +132,8 @@ nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
 		else
 		if (dev_priv->card_type < NV_C0)
 			ret = nv50_fbcon_imageblit(info, image);
+		else
+			ret = nvc0_fbcon_imageblit(info, image);
 		mutex_unlock(&dev_priv->channel->mutex);
 	}
 
@@ -163,10 +169,18 @@ nouveau_fbcon_sync(struct fb_info *info)
 		return 0;
 	}
 
+	if (dev_priv->card_type >= NV_C0) {
+		BEGIN_NVC0(chan, 2, NvSub2D, 0x010c, 1);
+		OUT_RING  (chan, 0);
+		BEGIN_NVC0(chan, 2, NvSub2D, 0x0100, 1);
+		OUT_RING  (chan, 0);
+	} else {
 		BEGIN_RING(chan, 0, 0x0104, 1);
-	OUT_RING(chan, 0);
+		OUT_RING  (chan, 0);
 		BEGIN_RING(chan, 0, 0x0100, 1);
-	OUT_RING(chan, 0);
+		OUT_RING  (chan, 0);
+	}
+
 	nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff);
 	FIRE_RING(chan);
 	mutex_unlock(&chan->mutex);
@@ -374,6 +388,8 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
 		else
 		if (dev_priv->card_type < NV_C0)
 			ret = nv50_fbcon_accel_init(info);
+		else
+			ret = nvc0_fbcon_accel_init(info);
 
 		if (ret == 0)
 			info->fbops = &nouveau_fbcon_ops;

drivers/gpu/drm/nouveau/nouveau_fbcon.h

@@ -44,11 +44,17 @@ int nv04_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region);
 int nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 int nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image);
 int nv04_fbcon_accel_init(struct fb_info *info);
+
 int nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 int nv50_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region);
 int nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image);
 int nv50_fbcon_accel_init(struct fb_info *info);
 
+int nvc0_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
+int nvc0_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region);
+int nvc0_fbcon_imageblit(struct fb_info *info, const struct fb_image *image);
+int nvc0_fbcon_accel_init(struct fb_info *info);
+
 void nouveau_fbcon_gpu_lockup(struct fb_info *info);
 
 int nouveau_fbcon_init(struct drm_device *dev);

drivers/gpu/drm/nouveau/nvc0_fbcon.c

+/*
+ * Copyright 2010 Red Hat Inc.
+ *
+ * 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 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 HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_dma.h"
+#include "nouveau_ramht.h"
+#include "nouveau_fbcon.h"
+#include "nouveau_mm.h"
+
+int
+nvc0_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+	struct nouveau_fbdev *nfbdev = info->par;
+	struct drm_device *dev = nfbdev->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_channel *chan = dev_priv->channel;
+	int ret;
+
+	ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
+	if (ret)
+		return ret;
+
+	if (rect->rop != ROP_COPY) {
+		BEGIN_NVC0(chan, 2, NvSub2D, 0x02ac, 1);
+		OUT_RING  (chan, 1);
+	}
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0588, 1);
+	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
+		OUT_RING  (chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
+	else
+		OUT_RING  (chan, rect->color);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0600, 4);
+	OUT_RING  (chan, rect->dx);
+	OUT_RING  (chan, rect->dy);
+	OUT_RING  (chan, rect->dx + rect->width);
+	OUT_RING  (chan, rect->dy + rect->height);
+	if (rect->rop != ROP_COPY) {
+		BEGIN_NVC0(chan, 2, NvSub2D, 0x02ac, 1);
+		OUT_RING  (chan, 3);
+	}
+	FIRE_RING(chan);
+	return 0;
+}
+
+int
+nvc0_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
+{
+	struct nouveau_fbdev *nfbdev = info->par;
+	struct drm_device *dev = nfbdev->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_channel *chan = dev_priv->channel;
+	int ret;
+
+	ret = RING_SPACE(chan, 12);
+	if (ret)
+		return ret;
+
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0110, 1);
+	OUT_RING  (chan, 0);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x08b0, 4);
+	OUT_RING  (chan, region->dx);
+	OUT_RING  (chan, region->dy);
+	OUT_RING  (chan, region->width);
+	OUT_RING  (chan, region->height);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x08d0, 4);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, region->sx);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, region->sy);
+	FIRE_RING(chan);
+	return 0;
+}
+
+int
+nvc0_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+	struct nouveau_fbdev *nfbdev = info->par;
+	struct drm_device *dev = nfbdev->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_channel *chan = dev_priv->channel;
+	uint32_t width, dwords, *data = (uint32_t *)image->data;
+	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
+	uint32_t *palette = info->pseudo_palette;
+	int ret;
+
+	if (image->depth != 1)
+		return -ENODEV;
+
+	ret = RING_SPACE(chan, 11);
+	if (ret)
+		return ret;
+
+	width = ALIGN(image->width, 32);
+	dwords = (width * image->height) >> 5;
+
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0814, 2);
+	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+		OUT_RING  (chan, palette[image->bg_color] | mask);
+		OUT_RING  (chan, palette[image->fg_color] | mask);
+	} else {
+		OUT_RING  (chan, image->bg_color);
+		OUT_RING  (chan, image->fg_color);
+	}
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0838, 2);
+	OUT_RING  (chan, image->width);
+	OUT_RING  (chan, image->height);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0850, 4);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, image->dx);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, image->dy);
+
+	while (dwords) {
+		int push = dwords > 2047 ? 2047 : dwords;
+
+		ret = RING_SPACE(chan, push + 1);
+		if (ret)
+			return ret;
+
+		dwords -= push;
+
+		BEGIN_NVC0(chan, 6, NvSub2D, 0x0860, push);
+		OUT_RINGp(chan, data, push);
+		data += push;
+	}
+
+	FIRE_RING(chan);
+	return 0;
+}
+
+int
+nvc0_fbcon_accel_init(struct fb_info *info)
+{
+	struct nouveau_fbdev *nfbdev = info->par;
+	struct drm_device *dev = nfbdev->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_channel *chan = dev_priv->channel;
+	struct nouveau_bo *nvbo = nfbdev->nouveau_fb.nvbo;
+	int ret, format;
+
+	ret = nouveau_gpuobj_gr_new(chan, 0x902d, 0x902d);
+	if (ret)
+		return ret;
+
+	switch (info->var.bits_per_pixel) {
+	case 8:
+		format = 0xf3;
+		break;
+	case 15:
+		format = 0xf8;
+		break;
+	case 16:
+		format = 0xe8;
+		break;
+	case 32:
+		switch (info->var.transp.length) {
+		case 0: /* depth 24 */
+		case 8: /* depth 32, just use 24.. */
+			format = 0xe6;
+			break;
+		case 2: /* depth 30 */
+			format = 0xd1;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = RING_SPACE(chan, 60);
+	if (ret) {
+		WARN_ON(1);
+		nouveau_fbcon_gpu_lockup(info);
+		return ret;
+	}
+
+	printk(KERN_ERR "fb vma 0x%010llx\n", nvbo->vma.offset);
+
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0000, 1);
+	OUT_RING  (chan, 0x0000902d);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0104, 2);
+	OUT_RING  (chan, upper_32_bits(chan->notifier_bo->bo.offset));
+	OUT_RING  (chan, lower_32_bits(chan->notifier_bo->bo.offset));
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0290, 1);
+	OUT_RING  (chan, 0);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0888, 1);
+	OUT_RING  (chan, 1);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x02ac, 1);
+	OUT_RING  (chan, 3);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x02a0, 1);
+	OUT_RING  (chan, 0x55);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x08c0, 4);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 1);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 1);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0580, 2);
+	OUT_RING  (chan, 4);
+	OUT_RING  (chan, format);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x02e8, 2);
+	OUT_RING  (chan, 2);
+	OUT_RING  (chan, 1);
+
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0804, 1);
+	OUT_RING  (chan, format);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0800, 1);
+	OUT_RING  (chan, 1);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0808, 3);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 1);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x081c, 1);
+	OUT_RING  (chan, 1);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0840, 4);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 1);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 1);
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0200, 10);
+	OUT_RING  (chan, format);
+	OUT_RING  (chan, 1);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 1);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, info->fix.line_length);
+	OUT_RING  (chan, info->var.xres_virtual);
+	OUT_RING  (chan, info->var.yres_virtual);
+	OUT_RING  (chan, upper_32_bits(nvbo->vma.offset));
+	OUT_RING  (chan, lower_32_bits(nvbo->vma.offset));
+	BEGIN_NVC0(chan, 2, NvSub2D, 0x0230, 10);
+	OUT_RING  (chan, format);
+	OUT_RING  (chan, 1);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, 1);
+	OUT_RING  (chan, 0);
+	OUT_RING  (chan, info->fix.line_length);
+	OUT_RING  (chan, info->var.xres_virtual);
+	OUT_RING  (chan, info->var.yres_virtual);
+	OUT_RING  (chan, upper_32_bits(nvbo->vma.offset));
+	OUT_RING  (chan, lower_32_bits(nvbo->vma.offset));
+	FIRE_RING (chan);
+
+	return 0;
+}
+