From d36a99d2da22bdffebf644e4a5f811e8eff82360 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Thu, 20 Aug 2015 14:54:14 +1000
Subject: drm/nouveau/fb: transition nvkm_ram away from being based on
nvkm_object
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.c | 100 +++++++++++++++++++++++++++
1 file changed, 100 insertions(+)
create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.c
(limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.c')
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.c
new file mode 100644
index 000000000000..c17d559dbfbe
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2015 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 <bskeggs@redhat.com>
+ */
+#include "ram.h"
+
+int
+nvkm_ram_init(struct nvkm_ram *ram)
+{
+ if (ram->func->init)
+ return ram->func->init(ram);
+ return 0;
+}
+
+void
+nvkm_ram_del(struct nvkm_ram **pram)
+{
+ struct nvkm_ram *ram = *pram;
+ if (ram && !WARN_ON(!ram->func)) {
+ if (ram->func->dtor)
+ *pram = ram->func->dtor(ram);
+ nvkm_mm_fini(&ram->tags);
+ nvkm_mm_fini(&ram->vram);
+ kfree(*pram);
+ *pram = NULL;
+ }
+}
+
+int
+nvkm_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
+ enum nvkm_ram_type type, u64 size, u32 tags,
+ struct nvkm_ram *ram)
+{
+ static const char *name[] = {
+ [NVKM_RAM_TYPE_UNKNOWN] = "of unknown memory type",
+ [NVKM_RAM_TYPE_STOLEN ] = "stolen system memory",
+ [NVKM_RAM_TYPE_SGRAM ] = "SGRAM",
+ [NVKM_RAM_TYPE_SDRAM ] = "SDRAM",
+ [NVKM_RAM_TYPE_DDR1 ] = "DDR1",
+ [NVKM_RAM_TYPE_DDR2 ] = "DDR2",
+ [NVKM_RAM_TYPE_DDR3 ] = "DDR3",
+ [NVKM_RAM_TYPE_GDDR2 ] = "GDDR2",
+ [NVKM_RAM_TYPE_GDDR3 ] = "GDDR3",
+ [NVKM_RAM_TYPE_GDDR4 ] = "GDDR4",
+ [NVKM_RAM_TYPE_GDDR5 ] = "GDDR5",
+ };
+ struct nvkm_subdev *subdev = &fb->subdev;
+ int ret;
+
+ nvkm_info(subdev, "%d MiB %s\n", (int)(size >> 20), name[type]);
+ ram->func = func;
+ ram->fb = fb;
+ ram->type = type;
+ ram->size = size;
+
+ if (!nvkm_mm_initialised(&ram->vram)) {
+ ret = nvkm_mm_init(&ram->vram, 0, size >> NVKM_RAM_MM_SHIFT, 1);
+ if (ret)
+ return ret;
+ }
+
+ if (!nvkm_mm_initialised(&ram->tags)) {
+ ret = nvkm_mm_init(&ram->tags, 0, tags ? ++tags : 0, 1);
+ if (ret)
+ return ret;
+
+ nvkm_debug(subdev, "%d compression tags\n", tags);
+ }
+
+ return 0;
+}
+
+int
+nvkm_ram_new_(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
+ enum nvkm_ram_type type, u64 size, u32 tags,
+ struct nvkm_ram **pram)
+{
+ if (!(*pram = kzalloc(sizeof(**pram), GFP_KERNEL)))
+ return -ENOMEM;
+ return nvkm_ram_ctor(func, fb, type, size, tags, *pram);
+}
--
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