drm/nouveau/fb: initialise vram controller as pfb sub-object
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv04.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv04.c
new file mode 100644
index 0000000..e781080
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv04.c
@@ -0,0 +1,95 @@
+/*
+ * 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
+ */
+
+#define NV04_PFB_BOOT_0 0x00100000
+# define NV04_PFB_BOOT_0_RAM_AMOUNT 0x00000003
+# define NV04_PFB_BOOT_0_RAM_AMOUNT_32MB 0x00000000
+# define NV04_PFB_BOOT_0_RAM_AMOUNT_4MB 0x00000001
+# define NV04_PFB_BOOT_0_RAM_AMOUNT_8MB 0x00000002
+# define NV04_PFB_BOOT_0_RAM_AMOUNT_16MB 0x00000003
+# define NV04_PFB_BOOT_0_RAM_WIDTH_128 0x00000004
+# define NV04_PFB_BOOT_0_RAM_TYPE 0x00000028
+# define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_8MBIT 0x00000000
+# define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT 0x00000008
+# define NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT_4BANK 0x00000010
+# define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT 0x00000018
+# define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_64MBIT 0x00000020
+# define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_64MBITX16 0x00000028
+# define NV04_PFB_BOOT_0_UMA_ENABLE 0x00000100
+# define NV04_PFB_BOOT_0_UMA_SIZE 0x0000f000
+
+#include "priv.h"
+
+static int
+nv04_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 boot0 = nv_rd32(pfb, NV04_PFB_BOOT_0);
+ int ret;
+
+ ret = nouveau_ram_create(parent, engine, oclass, &ram);
+ *pobject = nv_object(ram);
+ if (ret)
+ return ret;
+
+ if (boot0 & 0x00000100) {
+ ram->size = ((boot0 >> 12) & 0xf) * 2 + 2;
+ ram->size *= 1024 * 1024;
+ } else {
+ switch (boot0 & NV04_PFB_BOOT_0_RAM_AMOUNT) {
+ case NV04_PFB_BOOT_0_RAM_AMOUNT_32MB:
+ ram->size = 32 * 1024 * 1024;
+ break;
+ case NV04_PFB_BOOT_0_RAM_AMOUNT_16MB:
+ ram->size = 16 * 1024 * 1024;
+ break;
+ case NV04_PFB_BOOT_0_RAM_AMOUNT_8MB:
+ ram->size = 8 * 1024 * 1024;
+ break;
+ case NV04_PFB_BOOT_0_RAM_AMOUNT_4MB:
+ ram->size = 4 * 1024 * 1024;
+ break;
+ }
+ }
+
+ if ((boot0 & 0x00000038) <= 0x10)
+ ram->type = NV_MEM_TYPE_SGRAM;
+ else
+ ram->type = NV_MEM_TYPE_SDRAM;
+ return 0;
+}
+
+struct nouveau_oclass
+nv04_ram_oclass = {
+ .handle = 0,
+ .ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = nv04_ram_create,
+ .dtor = _nouveau_ram_dtor,
+ .init = _nouveau_ram_init,
+ .fini = _nouveau_ram_fini,
+ }
+};