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authorBen Skeggs <bskeggs@redhat.com>2013-03-04 13:01:21 +1000
committerBen Skeggs <bskeggs@redhat.com>2013-07-01 13:44:04 +1000
commitdceef5d87cc01358cc1434416f3272e2ddc3d97a (patch)
tree6d073077600739f296087e0e38d65e21d7074873 /drivers/gpu/drm/nouveau/core/subdev/fb/ramnv40.c
parent54ecff3e1ad22fd44443acde7f27f213758fdddc (diff)
drm/nouveau/fb: initialise vram controller as pfb sub-object
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/ramnv40.c')
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/fb/ramnv40.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv40.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv40.c
new file mode 100644
index 000000000000..ee49ac4dbdb6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv40.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2013 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 "priv.h"
+
+static int
+nv40_ram_create(struct nouveau_object *parent, struct nouveau_object *engine,
+ struct nouveau_oclass *oclass, void *data, u32 size,
+ struct nouveau_object **pobject)
+{
+ struct nouveau_fb *pfb = nouveau_fb(parent);
+ struct nouveau_ram *ram;
+ u32 pbus1218 = nv_rd32(pfb, 0x001218);
+ int ret;
+
+ ret = nouveau_ram_create(parent, engine, oclass, &ram);
+ *pobject = nv_object(ram);
+ if (ret)
+ return ret;
+
+ switch (pbus1218 & 0x00000300) {
+ case 0x00000000: ram->type = NV_MEM_TYPE_SDRAM; break;
+ case 0x00000100: ram->type = NV_MEM_TYPE_DDR1; break;
+ case 0x00000200: ram->type = NV_MEM_TYPE_GDDR3; break;
+ case 0x00000300: ram->type = NV_MEM_TYPE_DDR2; break;
+ }
+
+ ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000;
+ ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
+ ram->tags = nv_rd32(pfb, 0x100320);
+ return 0;
+}
+
+
+struct nouveau_oclass
+nv40_ram_oclass = {
+ .handle = 0,
+ .ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = nv40_ram_create,
+ .dtor = _nouveau_ram_dtor,
+ .init = _nouveau_ram_init,
+ .fini = _nouveau_ram_fini,
+ }
+};