drm/nv30/fb: enable z compression

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

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 4f08a04..76cdb27 100644 (file)
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -69,6 +69,7 @@ nouveau-y += core/subdev/fb/nv20.o
 nouveau-y += core/subdev/fb/nv25.o
 nouveau-y += core/subdev/fb/nv30.o
 nouveau-y += core/subdev/fb/nv35.o
+nouveau-y += core/subdev/fb/nv36.o
 nouveau-y += core/subdev/fb/nv40.o
 nouveau-y += core/subdev/fb/nv41.o
 nouveau-y += core/subdev/fb/nv44.o

diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
index eb5cbbf..4cdd52a 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
@@ -121,6 +121,7 @@ extern struct nouveau_oclass nv20_fb_oclass;
 extern struct nouveau_oclass nv25_fb_oclass;
 extern struct nouveau_oclass nv30_fb_oclass;
 extern struct nouveau_oclass nv35_fb_oclass;
+extern struct nouveau_oclass nv36_fb_oclass;
 extern struct nouveau_oclass nv40_fb_oclass;
 extern struct nouveau_oclass nv41_fb_oclass;
 extern struct nouveau_oclass nv44_fb_oclass;

diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c b/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c
index 05406fa..0ac1b2c 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c
@@ -109,7 +109,7 @@ nv30_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
                device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
                device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
-               device->oclass[NVDEV_SUBDEV_FB     ] = &nv35_fb_oclass;
+               device->oclass[NVDEV_SUBDEV_FB     ] = &nv36_fb_oclass;
                device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv04_instmem_oclass;
                device->oclass[NVDEV_SUBDEV_VM     ] = &nv04_vmmgr_oclass;
                device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv30.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv30.c
index b002902..a7ba0d0 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv30.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv30.c
@@ -53,7 +53,17 @@ static void
 nv30_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
                  struct nouveau_fb_tile *tile)
 {
-       tile->zcomp = 0x00000000;
+       u32 tiles = DIV_ROUND_UP(size, 0x40);
+       u32 tags  = round_up(tiles / pfb->ram.parts, 0x40);
+       if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
+               if (flags & 2) tile->zcomp |= 0x01000000; /* Z16 */
+               else           tile->zcomp |= 0x02000000; /* Z24S8 */
+               tile->zcomp |= ((tile->tag->offset           ) >> 6);
+               tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 12;
+#ifdef __BIG_ENDIAN
+               tile->zcomp |= 0x10000000;
+#endif
+       }
 }
 
 static int

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv35.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv35.c
index 60d1fcb..092f6f4 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv35.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv35.c
@@ -34,7 +34,17 @@ static void
 nv35_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
                  struct nouveau_fb_tile *tile)
 {
-       tile->zcomp = 0x00000000;
+       u32 tiles = DIV_ROUND_UP(size, 0x40);
+       u32 tags  = round_up(tiles / pfb->ram.parts, 0x40);
+       if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
+               if (flags & 2) tile->zcomp |= 0x04000000; /* Z16 */
+               else           tile->zcomp |= 0x08000000; /* Z24S8 */
+               tile->zcomp |= ((tile->tag->offset           ) >> 6);
+               tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 13;
+#ifdef __BIG_ENDIAN
+               tile->zcomp |= 0x40000000;
+#endif
+       }
 }
 
 static int

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv36.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv36.c
new file mode 100644 (file)
index 0000000..797ab3b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv36.c
@@ -0,0 +1,82 @@
+/*
+ * 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 <subdev/fb.h>
+
+struct nv36_fb_priv {
+       struct nouveau_fb base;
+};
+
+static void
+nv36_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
+                 struct nouveau_fb_tile *tile)
+{
+       u32 tiles = DIV_ROUND_UP(size, 0x40);
+       u32 tags  = round_up(tiles / pfb->ram.parts, 0x40);
+       if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
+               if (flags & 2) tile->zcomp |= 0x10000000; /* Z16 */
+               else           tile->zcomp |= 0x20000000; /* Z24S8 */
+               tile->zcomp |= ((tile->tag->offset           ) >> 6);
+               tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 14;
+#ifdef __BIG_ENDIAN
+               tile->zcomp |= 0x80000000;
+#endif
+       }
+}
+
+static int
+nv36_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+            struct nouveau_oclass *oclass, void *data, u32 size,
+            struct nouveau_object **pobject)
+{
+       struct nv36_fb_priv *priv;
+       int ret;
+
+       ret = nouveau_fb_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->base.memtype_valid = nv04_fb_memtype_valid;
+       priv->base.ram.init = nv20_fb_vram_init;
+       priv->base.tile.regions = 8;
+       priv->base.tile.init = nv30_fb_tile_init;
+       priv->base.tile.comp = nv36_fb_tile_comp;
+       priv->base.tile.fini = nv20_fb_tile_fini;
+       priv->base.tile.prog = nv20_fb_tile_prog;
+       return nouveau_fb_preinit(&priv->base);
+}
+
+struct nouveau_oclass
+nv36_fb_oclass = {
+       .handle = NV_SUBDEV(FB, 0x36),
+       .ofuncs = &(struct nouveau_ofuncs) {
+               .ctor = nv36_fb_ctor,
+               .dtor = _nouveau_fb_dtor,
+               .init = nv30_fb_init,
+               .fini = _nouveau_fb_fini,
+       },
+};