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path: root/drivers/gpu/drm/nouveau/nv04_fbcon.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_fbcon.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv04_fbcon.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c
new file mode 100644
index 0000000..09a3107
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c
@@ -0,0 +1,316 @@
+/*
+ * Copyright 2009 Ben Skeggs
+ * Copyright 2008 Stuart Bennett
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_dma.h"
+#include "nouveau_fbcon.h"
+
+static void
+nv04_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
+{
+ struct nouveau_fbcon_par *par = info->par;
+ struct drm_device *dev = par->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_channel *chan = dev_priv->channel;
+
+ if (info->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 4)) {
+ NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ }
+
+ if (info->flags & FBINFO_HWACCEL_DISABLED) {
+ cfb_copyarea(info, region);
+ return;
+ }
+
+ BEGIN_RING(chan, NvSubImageBlit, 0x0300, 3);
+ OUT_RING(chan, (region->sy << 16) | region->sx);
+ OUT_RING(chan, (region->dy << 16) | region->dx);
+ OUT_RING(chan, (region->height << 16) | region->width);
+ FIRE_RING(chan);
+}
+
+static void
+nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+ struct nouveau_fbcon_par *par = info->par;
+ struct drm_device *dev = par->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_channel *chan = dev_priv->channel;
+ uint32_t color = ((uint32_t *) info->pseudo_palette)[rect->color];
+
+ if (info->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 7)) {
+ NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ }
+
+ if (info->flags & FBINFO_HWACCEL_DISABLED) {
+ cfb_fillrect(info, rect);
+ return;
+ }
+
+ BEGIN_RING(chan, NvSubGdiRect, 0x02fc, 1);
+ OUT_RING(chan, (rect->rop != ROP_COPY) ? 1 : 3);
+ BEGIN_RING(chan, NvSubGdiRect, 0x03fc, 1);
+ OUT_RING(chan, color);
+ BEGIN_RING(chan, NvSubGdiRect, 0x0400, 2);
+ OUT_RING(chan, (rect->dx << 16) | rect->dy);
+ OUT_RING(chan, (rect->width << 16) | rect->height);
+ FIRE_RING(chan);
+}
+
+static void
+nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+ struct nouveau_fbcon_par *par = info->par;
+ struct drm_device *dev = par->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_channel *chan = dev_priv->channel;
+ uint32_t fg;
+ uint32_t bg;
+ uint32_t dsize;
+ uint32_t width;
+ uint32_t *data = (uint32_t *)image->data;
+
+ if (info->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if (image->depth != 1) {
+ cfb_imageblit(info, image);
+ return;
+ }
+
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED) && RING_SPACE(chan, 8)) {
+ NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ }
+
+ if (info->flags & FBINFO_HWACCEL_DISABLED) {
+ cfb_imageblit(info, image);
+ return;
+ }
+
+ width = (image->width + 31) & ~31;
+ dsize = (width * image->height) >> 5;
+
+ if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+ info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+ fg = ((uint32_t *) info->pseudo_palette)[image->fg_color];
+ bg = ((uint32_t *) info->pseudo_palette)[image->bg_color];
+ } else {
+ fg = image->fg_color;
+ bg = image->bg_color;
+ }
+
+ BEGIN_RING(chan, NvSubGdiRect, 0x0be4, 7);
+ OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
+ OUT_RING(chan, ((image->dy + image->height) << 16) |
+ ((image->dx + image->width) & 0xffff));
+ OUT_RING(chan, bg);
+ OUT_RING(chan, fg);
+ OUT_RING(chan, (image->height << 16) | image->width);
+ OUT_RING(chan, (image->height << 16) | width);
+ OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
+
+ while (dsize) {
+ int iter_len = dsize > 128 ? 128 : dsize;
+
+ if (RING_SPACE(chan, iter_len + 1)) {
+ NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ cfb_imageblit(info, image);
+ return;
+ }
+
+ BEGIN_RING(chan, NvSubGdiRect, 0x0c00, iter_len);
+ OUT_RINGp(chan, data, iter_len);
+ data += iter_len;
+ dsize -= iter_len;
+ }
+
+ FIRE_RING(chan);
+}
+
+static int
+nv04_fbcon_grobj_new(struct drm_device *dev, int class, uint32_t handle)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_gpuobj *obj = NULL;
+ int ret;
+
+ ret = nouveau_gpuobj_gr_new(dev_priv->channel, class, &obj);
+ if (ret)
+ return ret;
+
+ ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, handle, obj, NULL);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int
+nv04_fbcon_accel_init(struct fb_info *info)
+{
+ struct nouveau_fbcon_par *par = info->par;
+ struct drm_device *dev = par->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_channel *chan = dev_priv->channel;
+ int surface_fmt, pattern_fmt, rect_fmt;
+ int ret;
+
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ surface_fmt = 1;
+ pattern_fmt = 3;
+ rect_fmt = 3;
+ break;
+ case 16:
+ surface_fmt = 4;
+ pattern_fmt = 1;
+ rect_fmt = 1;
+ break;
+ case 32:
+ switch (info->var.transp.length) {
+ case 0: /* depth 24 */
+ case 8: /* depth 32 */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ surface_fmt = 6;
+ pattern_fmt = 3;
+ rect_fmt = 3;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = nv04_fbcon_grobj_new(dev, dev_priv->card_type >= NV_10 ?
+ 0x0062 : 0x0042, NvCtxSurf2D);
+ if (ret)
+ return ret;
+
+ ret = nv04_fbcon_grobj_new(dev, 0x0019, NvClipRect);
+ if (ret)
+ return ret;
+
+ ret = nv04_fbcon_grobj_new(dev, 0x0043, NvRop);
+ if (ret)
+ return ret;
+
+ ret = nv04_fbcon_grobj_new(dev, 0x0044, NvImagePatt);
+ if (ret)
+ return ret;
+
+ ret = nv04_fbcon_grobj_new(dev, 0x004a, NvGdiRect);
+ if (ret)
+ return ret;
+
+ ret = nv04_fbcon_grobj_new(dev, dev_priv->card_type >= NV_10 ?
+ 0x009f : 0x005f, NvImageBlit);
+ if (ret)
+ return ret;
+
+ if (RING_SPACE(chan, 49)) {
+ NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ return 0;
+ }
+
+ BEGIN_RING(chan, 1, 0x0000, 1);
+ OUT_RING(chan, NvCtxSurf2D);
+ BEGIN_RING(chan, 1, 0x0184, 2);
+ OUT_RING(chan, NvDmaFB);
+ OUT_RING(chan, NvDmaFB);
+ BEGIN_RING(chan, 1, 0x0300, 4);
+ OUT_RING(chan, surface_fmt);
+ OUT_RING(chan, info->fix.line_length | (info->fix.line_length << 16));
+ OUT_RING(chan, info->fix.smem_start - dev->mode_config.fb_base);
+ OUT_RING(chan, info->fix.smem_start - dev->mode_config.fb_base);
+
+ BEGIN_RING(chan, 1, 0x0000, 1);
+ OUT_RING(chan, NvRop);
+ BEGIN_RING(chan, 1, 0x0300, 1);
+ OUT_RING(chan, 0x55);
+
+ BEGIN_RING(chan, 1, 0x0000, 1);
+ OUT_RING(chan, NvImagePatt);
+ BEGIN_RING(chan, 1, 0x0300, 8);
+ OUT_RING(chan, pattern_fmt);
+#ifdef __BIG_ENDIAN
+ OUT_RING(chan, 2);
+#else
+ OUT_RING(chan, 1);
+#endif
+ OUT_RING(chan, 0);
+ OUT_RING(chan, 1);
+ OUT_RING(chan, ~0);
+ OUT_RING(chan, ~0);
+ OUT_RING(chan, ~0);
+ OUT_RING(chan, ~0);
+
+ BEGIN_RING(chan, 1, 0x0000, 1);
+ OUT_RING(chan, NvClipRect);
+ BEGIN_RING(chan, 1, 0x0300, 2);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, (info->var.yres_virtual << 16) | info->var.xres_virtual);
+
+ BEGIN_RING(chan, NvSubImageBlit, 0x0000, 1);
+ OUT_RING(chan, NvImageBlit);
+ BEGIN_RING(chan, NvSubImageBlit, 0x019c, 1);
+ OUT_RING(chan, NvCtxSurf2D);
+ BEGIN_RING(chan, NvSubImageBlit, 0x02fc, 1);
+ OUT_RING(chan, 3);
+
+ BEGIN_RING(chan, NvSubGdiRect, 0x0000, 1);
+ OUT_RING(chan, NvGdiRect);
+ BEGIN_RING(chan, NvSubGdiRect, 0x0198, 1);
+ OUT_RING(chan, NvCtxSurf2D);
+ BEGIN_RING(chan, NvSubGdiRect, 0x0188, 2);
+ OUT_RING(chan, NvImagePatt);
+ OUT_RING(chan, NvRop);
+ BEGIN_RING(chan, NvSubGdiRect, 0x0304, 1);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSubGdiRect, 0x0300, 1);
+ OUT_RING(chan, rect_fmt);
+ BEGIN_RING(chan, NvSubGdiRect, 0x02fc, 1);
+ OUT_RING(chan, 3);
+
+ FIRE_RING(chan);
+
+ info->fbops->fb_fillrect = nv04_fbcon_fillrect;
+ info->fbops->fb_copyarea = nv04_fbcon_copyarea;
+ info->fbops->fb_imageblit = nv04_fbcon_imageblit;
+ return 0;
+}
+
generated by cgit v1.1 at 2024-05-25 04:43:27 +0000