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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk20a.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk20a.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk20a.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk20a.c
deleted file mode 100644
index 5f30db140b47..000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk20a.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (c) 2014, NVIDIA CORPORATION. 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 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 AUTHORS OR COPYRIGHT HOLDERS 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 "priv.h"
-
-#include <core/device.h>
-
-struct gk20a_mem {
- struct nvkm_mem base;
- void *cpuaddr;
- dma_addr_t handle;
-};
-#define to_gk20a_mem(m) container_of(m, struct gk20a_mem, base)
-
-static void
-gk20a_ram_put(struct nvkm_fb *pfb, struct nvkm_mem **pmem)
-{
- struct device *dev = nv_device_base(nv_device(pfb));
- struct gk20a_mem *mem = to_gk20a_mem(*pmem);
-
- *pmem = NULL;
- if (unlikely(mem == NULL))
- return;
-
- if (likely(mem->cpuaddr))
- dma_free_coherent(dev, mem->base.size << PAGE_SHIFT,
- mem->cpuaddr, mem->handle);
-
- kfree(mem->base.pages);
- kfree(mem);
-}
-
-static int
-gk20a_ram_get(struct nvkm_fb *pfb, u64 size, u32 align, u32 ncmin,
- u32 memtype, struct nvkm_mem **pmem)
-{
- struct device *dev = nv_device_base(nv_device(pfb));
- struct gk20a_mem *mem;
- u32 type = memtype & 0xff;
- u32 npages, order;
- int i;
-
- nv_debug(pfb, "%s: size: %llx align: %x, ncmin: %x\n", __func__, size,
- align, ncmin);
-
- npages = size >> PAGE_SHIFT;
- if (npages == 0)
- npages = 1;
-
- if (align == 0)
- align = PAGE_SIZE;
- align >>= PAGE_SHIFT;
-
- /* round alignment to the next power of 2, if needed */
- order = fls(align);
- if ((align & (align - 1)) == 0)
- order--;
- align = BIT(order);
-
- /* ensure returned address is correctly aligned */
- npages = max(align, npages);
-
- mem = kzalloc(sizeof(*mem), GFP_KERNEL);
- if (!mem)
- return -ENOMEM;
-
- mem->base.size = npages;
- mem->base.memtype = type;
-
- mem->base.pages = kzalloc(sizeof(dma_addr_t) * npages, GFP_KERNEL);
- if (!mem->base.pages) {
- kfree(mem);
- return -ENOMEM;
- }
-
- *pmem = &mem->base;
-
- mem->cpuaddr = dma_alloc_coherent(dev, npages << PAGE_SHIFT,
- &mem->handle, GFP_KERNEL);
- if (!mem->cpuaddr) {
- nv_error(pfb, "%s: cannot allocate memory!\n", __func__);
- gk20a_ram_put(pfb, pmem);
- return -ENOMEM;
- }
-
- align <<= PAGE_SHIFT;
-
- /* alignment check */
- if (unlikely(mem->handle & (align - 1)))
- nv_warn(pfb, "memory not aligned as requested: %pad (0x%x)\n",
- &mem->handle, align);
-
- nv_debug(pfb, "alloc size: 0x%x, align: 0x%x, paddr: %pad, vaddr: %p\n",
- npages << PAGE_SHIFT, align, &mem->handle, mem->cpuaddr);
-
- for (i = 0; i < npages; i++)
- mem->base.pages[i] = mem->handle + (PAGE_SIZE * i);
-
- mem->base.offset = (u64)mem->base.pages[0];
- return 0;
-}
-
-static int
-gk20a_ram_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
- struct nvkm_oclass *oclass, void *data, u32 datasize,
- struct nvkm_object **pobject)
-{
- struct nvkm_ram *ram;
- int ret;
-
- ret = nvkm_ram_create(parent, engine, oclass, &ram);
- *pobject = nv_object(ram);
- if (ret)
- return ret;
- ram->type = NV_MEM_TYPE_STOLEN;
- ram->size = get_num_physpages() << PAGE_SHIFT;
-
- ram->get = gk20a_ram_get;
- ram->put = gk20a_ram_put;
- return 0;
-}
-
-struct nvkm_oclass
-gk20a_ram_oclass = {
- .ofuncs = &(struct nvkm_ofuncs) {
- .ctor = gk20a_ram_ctor,
- .dtor = _nvkm_ram_dtor,
- .init = _nvkm_ram_init,
- .fini = _nvkm_ram_fini,
- },
-};