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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c231
1 files changed, 231 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c
new file mode 100644
index 000000000..6bf0dad46
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c
@@ -0,0 +1,231 @@
+/*
+ * Copyright 2012 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_instmem(p) container_of((p), struct nv04_instmem, base)
+#include "priv.h"
+
+#include <core/ramht.h>
+
+struct nv04_instmem {
+ struct nvkm_instmem base;
+ struct nvkm_mm heap;
+};
+
+/******************************************************************************
+ * instmem object implementation
+ *****************************************************************************/
+#define nv04_instobj(p) container_of((p), struct nv04_instobj, base.memory)
+
+struct nv04_instobj {
+ struct nvkm_instobj base;
+ struct nv04_instmem *imem;
+ struct nvkm_mm_node *node;
+};
+
+static void
+nv04_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data)
+{
+ struct nv04_instobj *iobj = nv04_instobj(memory);
+ struct nvkm_device *device = iobj->imem->base.subdev.device;
+ nvkm_wr32(device, 0x700000 + iobj->node->offset + offset, data);
+}
+
+static u32
+nv04_instobj_rd32(struct nvkm_memory *memory, u64 offset)
+{
+ struct nv04_instobj *iobj = nv04_instobj(memory);
+ struct nvkm_device *device = iobj->imem->base.subdev.device;
+ return nvkm_rd32(device, 0x700000 + iobj->node->offset + offset);
+}
+
+static const struct nvkm_memory_ptrs
+nv04_instobj_ptrs = {
+ .rd32 = nv04_instobj_rd32,
+ .wr32 = nv04_instobj_wr32,
+};
+
+static void
+nv04_instobj_release(struct nvkm_memory *memory)
+{
+}
+
+static void __iomem *
+nv04_instobj_acquire(struct nvkm_memory *memory)
+{
+ struct nv04_instobj *iobj = nv04_instobj(memory);
+ struct nvkm_device *device = iobj->imem->base.subdev.device;
+ return device->pri + 0x700000 + iobj->node->offset;
+}
+
+static u64
+nv04_instobj_size(struct nvkm_memory *memory)
+{
+ return nv04_instobj(memory)->node->length;
+}
+
+static u64
+nv04_instobj_addr(struct nvkm_memory *memory)
+{
+ return nv04_instobj(memory)->node->offset;
+}
+
+static enum nvkm_memory_target
+nv04_instobj_target(struct nvkm_memory *memory)
+{
+ return NVKM_MEM_TARGET_INST;
+}
+
+static void *
+nv04_instobj_dtor(struct nvkm_memory *memory)
+{
+ struct nv04_instobj *iobj = nv04_instobj(memory);
+ mutex_lock(&iobj->imem->base.subdev.mutex);
+ nvkm_mm_free(&iobj->imem->heap, &iobj->node);
+ mutex_unlock(&iobj->imem->base.subdev.mutex);
+ nvkm_instobj_dtor(&iobj->imem->base, &iobj->base);
+ return iobj;
+}
+
+static const struct nvkm_memory_func
+nv04_instobj_func = {
+ .dtor = nv04_instobj_dtor,
+ .target = nv04_instobj_target,
+ .size = nv04_instobj_size,
+ .addr = nv04_instobj_addr,
+ .acquire = nv04_instobj_acquire,
+ .release = nv04_instobj_release,
+};
+
+static int
+nv04_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero,
+ struct nvkm_memory **pmemory)
+{
+ struct nv04_instmem *imem = nv04_instmem(base);
+ struct nv04_instobj *iobj;
+ int ret;
+
+ if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL)))
+ return -ENOMEM;
+ *pmemory = &iobj->base.memory;
+
+ nvkm_instobj_ctor(&nv04_instobj_func, &imem->base, &iobj->base);
+ iobj->base.memory.ptrs = &nv04_instobj_ptrs;
+ iobj->imem = imem;
+
+ mutex_lock(&imem->base.subdev.mutex);
+ ret = nvkm_mm_head(&imem->heap, 0, 1, size, size,
+ align ? align : 1, &iobj->node);
+ mutex_unlock(&imem->base.subdev.mutex);
+ return ret;
+}
+
+/******************************************************************************
+ * instmem subdev implementation
+ *****************************************************************************/
+
+static u32
+nv04_instmem_rd32(struct nvkm_instmem *imem, u32 addr)
+{
+ return nvkm_rd32(imem->subdev.device, 0x700000 + addr);
+}
+
+static void
+nv04_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data)
+{
+ nvkm_wr32(imem->subdev.device, 0x700000 + addr, data);
+}
+
+static int
+nv04_instmem_oneinit(struct nvkm_instmem *base)
+{
+ struct nv04_instmem *imem = nv04_instmem(base);
+ struct nvkm_device *device = imem->base.subdev.device;
+ int ret;
+
+ /* PRAMIN aperture maps over the end of VRAM, reserve it */
+ imem->base.reserved = 512 * 1024;
+
+ ret = nvkm_mm_init(&imem->heap, 0, 0, imem->base.reserved, 1);
+ if (ret)
+ return ret;
+
+ /* 0x00000-0x10000: reserve for probable vbios image */
+ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x10000, 0, false,
+ &imem->base.vbios);
+ if (ret)
+ return ret;
+
+ /* 0x10000-0x18000: reserve for RAMHT */
+ ret = nvkm_ramht_new(device, 0x08000, 0, NULL, &imem->base.ramht);
+ if (ret)
+ return ret;
+
+ /* 0x18000-0x18800: reserve for RAMFC (enough for 32 nv30 channels) */
+ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00800, 0, true,
+ &imem->base.ramfc);
+ if (ret)
+ return ret;
+
+ /* 0x18800-0x18a00: reserve for RAMRO */
+ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00200, 0, false,
+ &imem->base.ramro);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void *
+nv04_instmem_dtor(struct nvkm_instmem *base)
+{
+ struct nv04_instmem *imem = nv04_instmem(base);
+ nvkm_memory_unref(&imem->base.ramfc);
+ nvkm_memory_unref(&imem->base.ramro);
+ nvkm_ramht_del(&imem->base.ramht);
+ nvkm_memory_unref(&imem->base.vbios);
+ nvkm_mm_fini(&imem->heap);
+ return imem;
+}
+
+static const struct nvkm_instmem_func
+nv04_instmem = {
+ .dtor = nv04_instmem_dtor,
+ .oneinit = nv04_instmem_oneinit,
+ .rd32 = nv04_instmem_rd32,
+ .wr32 = nv04_instmem_wr32,
+ .memory_new = nv04_instobj_new,
+ .zero = false,
+};
+
+int
+nv04_instmem_new(struct nvkm_device *device, int index,
+ struct nvkm_instmem **pimem)
+{
+ struct nv04_instmem *imem;
+
+ if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL)))
+ return -ENOMEM;
+ nvkm_instmem_ctor(&nv04_instmem, device, index, &imem->base);
+ *pimem = &imem->base;
+ return 0;
+}