summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv44.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv44.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv44.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv44.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv44.c
new file mode 100644
index 000000000..b1046ee9f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv44.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2010 Francisco Jerez.
+ * 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 "priv.h"
+#include "ram.h"
+
+static void
+nv44_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,
+ u32 flags, struct nvkm_fb_tile *tile)
+{
+ tile->addr = 0x00000001; /* mode = vram */
+ tile->addr |= addr;
+ tile->limit = max(1u, addr + size) - 1;
+ tile->pitch = pitch;
+}
+
+void
+nv44_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
+{
+ struct nvkm_device *device = fb->subdev.device;
+ nvkm_wr32(device, 0x100604 + (i * 0x10), tile->limit);
+ nvkm_wr32(device, 0x100608 + (i * 0x10), tile->pitch);
+ nvkm_wr32(device, 0x100600 + (i * 0x10), tile->addr);
+ nvkm_rd32(device, 0x100600 + (i * 0x10));
+}
+
+void
+nv44_fb_init(struct nvkm_fb *fb)
+{
+ struct nvkm_device *device = fb->subdev.device;
+ nvkm_wr32(device, 0x100850, 0x80000000);
+ nvkm_wr32(device, 0x100800, 0x00000001);
+}
+
+static const struct nvkm_fb_func
+nv44_fb = {
+ .init = nv44_fb_init,
+ .tile.regions = 12,
+ .tile.init = nv44_fb_tile_init,
+ .tile.fini = nv20_fb_tile_fini,
+ .tile.prog = nv44_fb_tile_prog,
+ .ram_new = nv44_ram_new,
+};
+
+int
+nv44_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
+{
+ return nvkm_fb_new_(&nv44_fb, device, type, inst, pfb);
+}