2 * Copyright (C) 2007 Ben Skeggs.
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial
16 * portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 #include "nouveau_drv.h"
32 #include "nouveau_vm.h"
34 #define BAR1_VM_BASE 0x0020000000ULL
35 #define BAR1_VM_SIZE pci_resource_len(dev->pdev, 1)
36 #define BAR3_VM_BASE 0x0000000000ULL
37 #define BAR3_VM_SIZE pci_resource_len(dev->pdev, 3)
39 struct nv50_instmem_priv {
40 uint32_t save1700[5]; /* 0x1700->0x1710 */
42 struct nouveau_gpuobj *bar1_dmaobj;
43 struct nouveau_gpuobj *bar3_dmaobj;
47 nv50_channel_del(struct nouveau_channel **pchan)
49 struct nouveau_channel *chan;
56 nouveau_gpuobj_ref(NULL, &chan->ramfc);
57 nouveau_vm_ref(NULL, &chan->vm, chan->vm_pd);
58 nouveau_gpuobj_ref(NULL, &chan->vm_pd);
59 if (chan->ramin_heap.free_stack.next)
60 drm_mm_takedown(&chan->ramin_heap);
61 nouveau_gpuobj_ref(NULL, &chan->ramin);
66 nv50_channel_new(struct drm_device *dev, u32 size, struct nouveau_vm *vm,
67 struct nouveau_channel **pchan)
69 struct drm_nouveau_private *dev_priv = dev->dev_private;
70 u32 pgd = (dev_priv->chipset == 0x50) ? 0x1400 : 0x0200;
71 u32 fc = (dev_priv->chipset == 0x50) ? 0x0000 : 0x4200;
72 struct nouveau_channel *chan;
75 chan = kzalloc(sizeof(*chan), GFP_KERNEL);
80 ret = nouveau_gpuobj_new(dev, NULL, size, 0x1000, 0, &chan->ramin);
82 nv50_channel_del(&chan);
86 ret = drm_mm_init(&chan->ramin_heap, 0x6000, chan->ramin->size);
88 nv50_channel_del(&chan);
92 ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst == ~0 ? ~0 :
93 chan->ramin->pinst + pgd,
94 chan->ramin->vinst + pgd,
95 0x4000, NVOBJ_FLAG_ZERO_ALLOC,
98 nv50_channel_del(&chan);
102 for (i = 0; i < 0x4000; i += 8) {
103 nv_wo32(chan->vm_pd, i + 0, 0x00000000);
104 nv_wo32(chan->vm_pd, i + 4, 0xdeadcafe);
107 ret = nouveau_vm_ref(vm, &chan->vm, chan->vm_pd);
109 nv50_channel_del(&chan);
113 ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst == ~0 ? ~0 :
114 chan->ramin->pinst + fc,
115 chan->ramin->vinst + fc, 0x100,
116 NVOBJ_FLAG_ZERO_ALLOC, &chan->ramfc);
118 nv50_channel_del(&chan);
127 nv50_instmem_init(struct drm_device *dev)
129 struct drm_nouveau_private *dev_priv = dev->dev_private;
130 struct nv50_instmem_priv *priv;
131 struct nouveau_channel *chan;
132 struct nouveau_vm *vm;
136 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
139 dev_priv->engine.instmem.priv = priv;
141 /* Save state, will restore at takedown. */
142 for (i = 0x1700; i <= 0x1710; i += 4)
143 priv->save1700[(i-0x1700)/4] = nv_rd32(dev, i);
145 /* Global PRAMIN heap */
146 ret = drm_mm_init(&dev_priv->ramin_heap, 0, dev_priv->ramin_size);
148 NV_ERROR(dev, "Failed to init RAMIN heap\n");
153 ret = nouveau_vm_new(dev, BAR3_VM_BASE, BAR3_VM_SIZE, BAR3_VM_BASE,
154 29, 12, 16, &dev_priv->bar3_vm);
158 ret = nouveau_gpuobj_new(dev, NULL, (BAR3_VM_SIZE >> 12) * 8,
159 0x1000, NVOBJ_FLAG_DONT_MAP |
160 NVOBJ_FLAG_ZERO_ALLOC,
161 &dev_priv->bar3_vm->pgt[0].obj);
164 dev_priv->bar3_vm->pgt[0].page_shift = 12;
165 dev_priv->bar3_vm->pgt[0].refcount = 1;
167 nv50_instmem_map(dev_priv->bar3_vm->pgt[0].obj);
169 ret = nv50_channel_new(dev, 128 * 1024, dev_priv->bar3_vm, &chan);
172 dev_priv->channels.ptr[0] = dev_priv->channels.ptr[127] = chan;
174 ret = nv50_gpuobj_dma_new(chan, 0x0000, BAR3_VM_BASE, BAR3_VM_SIZE,
175 NV_MEM_TARGET_VM, NV_MEM_ACCESS_VM,
176 NV_MEM_TYPE_VM, NV_MEM_COMP_VM,
181 nv_wr32(dev, 0x001704, 0x00000000 | (chan->ramin->vinst >> 12));
182 nv_wr32(dev, 0x001704, 0x40000000 | (chan->ramin->vinst >> 12));
183 nv_wr32(dev, 0x00170c, 0x80000000 | (priv->bar3_dmaobj->cinst >> 4));
185 tmp = nv_ri32(dev, 0);
186 nv_wi32(dev, 0, ~tmp);
187 if (nv_ri32(dev, 0) != ~tmp) {
188 NV_ERROR(dev, "PRAMIN readback failed\n");
192 nv_wi32(dev, 0, tmp);
194 dev_priv->ramin_available = true;
197 ret = nouveau_vm_new(dev, BAR1_VM_BASE, BAR1_VM_SIZE, BAR1_VM_BASE,
202 ret = nouveau_vm_ref(vm, &dev_priv->bar1_vm, chan->vm_pd);
205 nouveau_vm_ref(NULL, &vm, NULL);
207 ret = nv50_gpuobj_dma_new(chan, 0x0000, BAR1_VM_BASE, BAR1_VM_SIZE,
208 NV_MEM_TARGET_VM, NV_MEM_ACCESS_VM,
209 NV_MEM_TYPE_VM, NV_MEM_COMP_VM,
214 nv_wr32(dev, 0x001708, 0x80000000 | (priv->bar1_dmaobj->cinst >> 4));
215 for (i = 0; i < 8; i++)
216 nv_wr32(dev, 0x1900 + (i*4), 0);
218 /* Create shared channel VM, space is reserved at the beginning
219 * to catch "NULL pointer" references
221 ret = nouveau_vm_new(dev, 0, (1ULL << 40), 0x0020000000ULL,
222 29, 12, 16, &dev_priv->chan_vm);
229 nv50_instmem_takedown(dev);
234 nv50_instmem_takedown(struct drm_device *dev)
236 struct drm_nouveau_private *dev_priv = dev->dev_private;
237 struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
238 struct nouveau_channel *chan = dev_priv->channels.ptr[0];
246 dev_priv->ramin_available = false;
248 nouveau_vm_ref(NULL, &dev_priv->chan_vm, NULL);
250 for (i = 0x1700; i <= 0x1710; i += 4)
251 nv_wr32(dev, i, priv->save1700[(i - 0x1700) / 4]);
253 nouveau_gpuobj_ref(NULL, &priv->bar3_dmaobj);
254 nouveau_gpuobj_ref(NULL, &priv->bar1_dmaobj);
256 nouveau_vm_ref(NULL, &dev_priv->bar1_vm, chan->vm_pd);
257 dev_priv->channels.ptr[127] = 0;
258 nv50_channel_del(&dev_priv->channels.ptr[0]);
260 nouveau_gpuobj_ref(NULL, &dev_priv->bar3_vm->pgt[0].obj);
261 nouveau_vm_ref(NULL, &dev_priv->bar3_vm, NULL);
263 if (dev_priv->ramin_heap.free_stack.next)
264 drm_mm_takedown(&dev_priv->ramin_heap);
266 dev_priv->engine.instmem.priv = NULL;
271 nv50_instmem_suspend(struct drm_device *dev)
273 struct drm_nouveau_private *dev_priv = dev->dev_private;
275 dev_priv->ramin_available = false;
280 nv50_instmem_resume(struct drm_device *dev)
282 struct drm_nouveau_private *dev_priv = dev->dev_private;
283 struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
284 struct nouveau_channel *chan = dev_priv->channels.ptr[0];
287 /* Poke the relevant regs, and pray it works :) */
288 nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->vinst >> 12));
289 nv_wr32(dev, NV50_PUNK_UNK1710, 0);
290 nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->vinst >> 12) |
291 NV50_PUNK_BAR_CFG_BASE_VALID);
292 nv_wr32(dev, NV50_PUNK_BAR1_CTXDMA, (priv->bar1_dmaobj->cinst >> 4) |
293 NV50_PUNK_BAR1_CTXDMA_VALID);
294 nv_wr32(dev, NV50_PUNK_BAR3_CTXDMA, (priv->bar3_dmaobj->cinst >> 4) |
295 NV50_PUNK_BAR3_CTXDMA_VALID);
297 for (i = 0; i < 8; i++)
298 nv_wr32(dev, 0x1900 + (i*4), 0);
300 dev_priv->ramin_available = true;
303 struct nv50_gpuobj_node {
304 struct nouveau_vram *vram;
305 struct nouveau_vma chan_vma;
311 nv50_instmem_get(struct nouveau_gpuobj *gpuobj, u32 size, u32 align)
313 struct drm_device *dev = gpuobj->dev;
314 struct drm_nouveau_private *dev_priv = dev->dev_private;
315 struct nv50_gpuobj_node *node = NULL;
318 node = kzalloc(sizeof(*node), GFP_KERNEL);
323 size = (size + 4095) & ~4095;
324 align = max(align, (u32)4096);
326 ret = nv50_vram_new(dev, size, align, 0, 0, &node->vram);
332 gpuobj->vinst = node->vram->offset;
334 if (gpuobj->flags & NVOBJ_FLAG_VM) {
335 ret = nouveau_vm_get(dev_priv->chan_vm, size, 12,
336 NV_MEM_ACCESS_RW | NV_MEM_ACCESS_SYS,
339 nv50_vram_del(dev, &node->vram);
344 nouveau_vm_map(&node->chan_vma, node->vram);
345 gpuobj->vinst = node->chan_vma.offset;
354 nv50_instmem_put(struct nouveau_gpuobj *gpuobj)
356 struct drm_device *dev = gpuobj->dev;
357 struct nv50_gpuobj_node *node;
362 if (node->chan_vma.node) {
363 nouveau_vm_unmap(&node->chan_vma);
364 nouveau_vm_put(&node->chan_vma);
366 nv50_vram_del(dev, &node->vram);
371 nv50_instmem_map(struct nouveau_gpuobj *gpuobj)
373 struct drm_nouveau_private *dev_priv = gpuobj->dev->dev_private;
374 struct nv50_gpuobj_node *node = gpuobj->node;
377 ret = nouveau_vm_get(dev_priv->bar3_vm, gpuobj->size, 12,
378 NV_MEM_ACCESS_RW, &node->vram->bar_vma);
382 nouveau_vm_map(&node->vram->bar_vma, node->vram);
383 gpuobj->pinst = node->vram->bar_vma.offset;
388 nv50_instmem_unmap(struct nouveau_gpuobj *gpuobj)
390 struct nv50_gpuobj_node *node = gpuobj->node;
392 if (node->vram->bar_vma.node) {
393 nouveau_vm_unmap(&node->vram->bar_vma);
394 nouveau_vm_put(&node->vram->bar_vma);
399 nv50_instmem_flush(struct drm_device *dev)
401 nv_wr32(dev, 0x00330c, 0x00000001);
402 if (!nv_wait(dev, 0x00330c, 0x00000002, 0x00000000))
403 NV_ERROR(dev, "PRAMIN flush timeout\n");
407 nv84_instmem_flush(struct drm_device *dev)
409 nv_wr32(dev, 0x070000, 0x00000001);
410 if (!nv_wait(dev, 0x070000, 0x00000002, 0x00000000))
411 NV_ERROR(dev, "PRAMIN flush timeout\n");