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path: root/drivers/gpu/drm/nouveau/nv50_fbcon.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_fbcon.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_fbcon.c273
1 files changed, 273 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_fbcon.c b/drivers/gpu/drm/nouveau/nv50_fbcon.c
new file mode 100644
index 00000000000..6bcc6d39e9b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv50_fbcon.c
@@ -0,0 +1,273 @@
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_dma.h"
+#include "nouveau_fbcon.h"
+
+static void
+nv50_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;
+
+ if (info->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED) &&
+ RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11)) {
+ 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;
+ }
+
+ if (rect->rop != ROP_COPY) {
+ BEGIN_RING(chan, NvSub2D, 0x02ac, 1);
+ OUT_RING(chan, 1);
+ }
+ BEGIN_RING(chan, NvSub2D, 0x0588, 1);
+ OUT_RING(chan, rect->color);
+ BEGIN_RING(chan, 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_RING(chan, NvSub2D, 0x02ac, 1);
+ OUT_RING(chan, 3);
+ }
+ FIRE_RING(chan);
+}
+
+static void
+nv50_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, 12)) {
+ 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, NvSub2D, 0x0110, 1);
+ OUT_RING(chan, 0);
+ BEGIN_RING(chan, NvSub2D, 0x08b0, 4);
+ OUT_RING(chan, region->dx);
+ OUT_RING(chan, region->dy);
+ OUT_RING(chan, region->width);
+ OUT_RING(chan, region->height);
+ BEGIN_RING(chan, NvSub2D, 0x08d0, 4);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, region->sx);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, region->sy);
+ FIRE_RING(chan);
+}
+
+static void
+nv50_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 width, dwords, *data = (uint32_t *)image->data;
+ uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
+ uint32_t *palette = info->pseudo_palette;
+
+ 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, 11)) {
+ 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;
+ dwords = (width * image->height) >> 5;
+
+ BEGIN_RING(chan, 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_RING(chan, NvSub2D, 0x0838, 2);
+ OUT_RING(chan, image->width);
+ OUT_RING(chan, image->height);
+ BEGIN_RING(chan, 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;
+
+ if (RING_SPACE(chan, push + 1)) {
+ NV_ERROR(dev,
+ "GPU lockup - switching to software fbcon\n");
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ cfb_imageblit(info, image);
+ return;
+ }
+
+ dwords -= push;
+
+ BEGIN_RING(chan, NvSub2D, 0x40000860, push);
+ OUT_RINGp(chan, data, push);
+ data += push;
+ }
+
+ FIRE_RING(chan);
+}
+
+int
+nv50_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;
+ struct nouveau_gpuobj *eng2d = NULL;
+ int ret, format;
+
+ 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 = nouveau_gpuobj_gr_new(dev_priv->channel, 0x502d, &eng2d);
+ if (ret)
+ return ret;
+
+ ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, Nv2D, eng2d, NULL);
+ if (ret)
+ return ret;
+
+ ret = RING_SPACE(chan, 59);
+ if (ret) {
+ NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
+ return ret;
+ }
+
+ BEGIN_RING(chan, NvSub2D, 0x0000, 1);
+ OUT_RING(chan, Nv2D);
+ BEGIN_RING(chan, NvSub2D, 0x0180, 4);
+ OUT_RING(chan, NvNotify0);
+ OUT_RING(chan, chan->vram_handle);
+ OUT_RING(chan, chan->vram_handle);
+ OUT_RING(chan, chan->vram_handle);
+ BEGIN_RING(chan, NvSub2D, 0x0290, 1);
+ OUT_RING(chan, 0);
+ BEGIN_RING(chan, NvSub2D, 0x0888, 1);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x02ac, 1);
+ OUT_RING(chan, 3);
+ BEGIN_RING(chan, NvSub2D, 0x02a0, 1);
+ OUT_RING(chan, 0x55);
+ BEGIN_RING(chan, NvSub2D, 0x08c0, 4);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, 1);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x0580, 2);
+ OUT_RING(chan, 4);
+ OUT_RING(chan, format);
+ BEGIN_RING(chan, NvSub2D, 0x02e8, 2);
+ OUT_RING(chan, 2);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x0804, 1);
+ OUT_RING(chan, format);
+ BEGIN_RING(chan, NvSub2D, 0x0800, 1);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x0808, 3);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, 0);
+ BEGIN_RING(chan, NvSub2D, 0x081c, 1);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x0840, 4);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, 1);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x0200, 2);
+ OUT_RING(chan, format);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x0214, 5);
+ OUT_RING(chan, info->fix.line_length);
+ OUT_RING(chan, info->var.xres_virtual);
+ OUT_RING(chan, info->var.yres_virtual);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, info->fix.smem_start - dev_priv->fb_phys +
+ dev_priv->vm_vram_base);
+ BEGIN_RING(chan, NvSub2D, 0x0230, 2);
+ OUT_RING(chan, format);
+ OUT_RING(chan, 1);
+ BEGIN_RING(chan, NvSub2D, 0x0244, 5);
+ OUT_RING(chan, info->fix.line_length);
+ OUT_RING(chan, info->var.xres_virtual);
+ OUT_RING(chan, info->var.yres_virtual);
+ OUT_RING(chan, 0);
+ OUT_RING(chan, info->fix.smem_start - dev_priv->fb_phys +
+ dev_priv->vm_vram_base);
+
+ info->fbops->fb_fillrect = nv50_fbcon_fillrect;
+ info->fbops->fb_copyarea = nv50_fbcon_copyarea;
+ info->fbops->fb_imageblit = nv50_fbcon_imageblit;
+ return 0;
+}
+
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 20:30:05 +0000