From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv04.c | 79 ++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv04.c

(limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv04.c')

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv04.c
new file mode 100644
index 000000000..855de1617
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv04.c
@@ -0,0 +1,79 @@
+/*
+ * 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"
+#include "regsnv04.h"
+
+static int
+nv04_ram_create(struct nvkm_object *parent, struct nvkm_object *engine,
+		struct nvkm_oclass *oclass, void *data, u32 size,
+		struct nvkm_object **pobject)
+{
+	struct nvkm_fb *pfb = nvkm_fb(parent);
+	struct nvkm_ram *ram;
+	u32 boot0 = nv_rd32(pfb, NV04_PFB_BOOT_0);
+	int ret;
+
+	ret = nvkm_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 nvkm_oclass
+nv04_ram_oclass = {
+	.handle = 0,
+	.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = nv04_ram_create,
+		.dtor = _nvkm_ram_dtor,
+		.init = _nvkm_ram_init,
+		.fini = _nvkm_ram_fini,
+	}
+};
-- 
cgit v1.2.3-54-g00ecf