diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_instmem.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_instmem.c | 527 |
1 files changed, 0 insertions, 527 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c deleted file mode 100644 index 5f21df31f3a..00000000000 --- a/drivers/gpu/drm/nouveau/nv50_instmem.c +++ /dev/null @@ -1,527 +0,0 @@ -/* - * Copyright (C) 2007 Ben Skeggs. - * - * 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 (including the - * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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 "drmP.h" -#include "drm.h" -#include "nouveau_drv.h" - -struct nv50_instmem_priv { - uint32_t save1700[5]; /* 0x1700->0x1710 */ - - struct nouveau_gpuobj_ref *pramin_pt; - struct nouveau_gpuobj_ref *pramin_bar; - struct nouveau_gpuobj_ref *fb_bar; - - bool last_access_wr; -}; - -#define NV50_INSTMEM_PAGE_SHIFT 12 -#define NV50_INSTMEM_PAGE_SIZE (1 << NV50_INSTMEM_PAGE_SHIFT) -#define NV50_INSTMEM_PT_SIZE(a) (((a) >> 12) << 3) - -/*NOTE: - Assumes 0x1700 already covers the correct MiB of PRAMIN - */ -#define BAR0_WI32(g, o, v) do { \ - uint32_t offset; \ - if ((g)->im_backing) { \ - offset = (g)->im_backing_start; \ - } else { \ - offset = chan->ramin->gpuobj->im_backing_start; \ - offset += (g)->im_pramin->start; \ - } \ - offset += (o); \ - nv_wr32(dev, NV_RAMIN + (offset & 0xfffff), (v)); \ -} while (0) - -int -nv50_instmem_init(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_channel *chan; - uint32_t c_offset, c_size, c_ramfc, c_vmpd, c_base, pt_size; - uint32_t save_nv001700; - uint64_t v; - struct nv50_instmem_priv *priv; - int ret, i; - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - dev_priv->engine.instmem.priv = priv; - - /* Save state, will restore at takedown. */ - for (i = 0x1700; i <= 0x1710; i += 4) - priv->save1700[(i-0x1700)/4] = nv_rd32(dev, i); - - /* Reserve the last MiB of VRAM, we should probably try to avoid - * setting up the below tables over the top of the VBIOS image at - * some point. - */ - dev_priv->ramin_rsvd_vram = 1 << 20; - c_offset = dev_priv->vram_size - dev_priv->ramin_rsvd_vram; - c_size = 128 << 10; - c_vmpd = ((dev_priv->chipset & 0xf0) == 0x50) ? 0x1400 : 0x200; - c_ramfc = ((dev_priv->chipset & 0xf0) == 0x50) ? 0x0 : 0x20; - c_base = c_vmpd + 0x4000; - pt_size = NV50_INSTMEM_PT_SIZE(dev_priv->ramin_size); - - NV_DEBUG(dev, " Rsvd VRAM base: 0x%08x\n", c_offset); - NV_DEBUG(dev, " VBIOS image: 0x%08x\n", - (nv_rd32(dev, 0x619f04) & ~0xff) << 8); - NV_DEBUG(dev, " Aperture size: %d MiB\n", dev_priv->ramin_size >> 20); - NV_DEBUG(dev, " PT size: %d KiB\n", pt_size >> 10); - - /* Determine VM layout, we need to do this first to make sure - * we allocate enough memory for all the page tables. - */ - dev_priv->vm_gart_base = roundup(NV50_VM_BLOCK, NV50_VM_BLOCK); - dev_priv->vm_gart_size = NV50_VM_BLOCK; - - dev_priv->vm_vram_base = dev_priv->vm_gart_base + dev_priv->vm_gart_size; - dev_priv->vm_vram_size = dev_priv->vram_size; - if (dev_priv->vm_vram_size > NV50_VM_MAX_VRAM) - dev_priv->vm_vram_size = NV50_VM_MAX_VRAM; - dev_priv->vm_vram_size = roundup(dev_priv->vm_vram_size, NV50_VM_BLOCK); - dev_priv->vm_vram_pt_nr = dev_priv->vm_vram_size / NV50_VM_BLOCK; - - dev_priv->vm_end = dev_priv->vm_vram_base + dev_priv->vm_vram_size; - - NV_DEBUG(dev, "NV50VM: GART 0x%016llx-0x%016llx\n", - dev_priv->vm_gart_base, - dev_priv->vm_gart_base + dev_priv->vm_gart_size - 1); - NV_DEBUG(dev, "NV50VM: VRAM 0x%016llx-0x%016llx\n", - dev_priv->vm_vram_base, - dev_priv->vm_vram_base + dev_priv->vm_vram_size - 1); - - c_size += dev_priv->vm_vram_pt_nr * (NV50_VM_BLOCK / 65536 * 8); - - /* Map BAR0 PRAMIN aperture over the memory we want to use */ - save_nv001700 = nv_rd32(dev, NV50_PUNK_BAR0_PRAMIN); - nv_wr32(dev, NV50_PUNK_BAR0_PRAMIN, (c_offset >> 16)); - - /* Create a fake channel, and use it as our "dummy" channels 0/127. - * The main reason for creating a channel is so we can use the gpuobj - * code. However, it's probably worth noting that NVIDIA also setup - * their channels 0/127 with the same values they configure here. - * So, there may be some other reason for doing this. - * - * Have to create the entire channel manually, as the real channel - * creation code assumes we have PRAMIN access, and we don't until - * we're done here. - */ - chan = kzalloc(sizeof(*chan), GFP_KERNEL); - if (!chan) - return -ENOMEM; - chan->id = 0; - chan->dev = dev; - chan->file_priv = (struct drm_file *)-2; - dev_priv->fifos[0] = dev_priv->fifos[127] = chan; - - /* Channel's PRAMIN object + heap */ - ret = nouveau_gpuobj_new_fake(dev, 0, c_offset, c_size, 0, - NULL, &chan->ramin); - if (ret) - return ret; - - if (nouveau_mem_init_heap(&chan->ramin_heap, c_base, c_size - c_base)) - return -ENOMEM; - - /* RAMFC + zero channel's PRAMIN up to start of VM pagedir */ - ret = nouveau_gpuobj_new_fake(dev, c_ramfc, c_offset + c_ramfc, - 0x4000, 0, NULL, &chan->ramfc); - if (ret) - return ret; - - for (i = 0; i < c_vmpd; i += 4) - BAR0_WI32(chan->ramin->gpuobj, i, 0); - - /* VM page directory */ - ret = nouveau_gpuobj_new_fake(dev, c_vmpd, c_offset + c_vmpd, - 0x4000, 0, &chan->vm_pd, NULL); - if (ret) - return ret; - for (i = 0; i < 0x4000; i += 8) { - BAR0_WI32(chan->vm_pd, i + 0x00, 0x00000000); - BAR0_WI32(chan->vm_pd, i + 0x04, 0x00000000); - } - - /* PRAMIN page table, cheat and map into VM at 0x0000000000. - * We map the entire fake channel into the start of the PRAMIN BAR - */ - ret = nouveau_gpuobj_new_ref(dev, chan, NULL, 0, pt_size, 0x1000, - 0, &priv->pramin_pt); - if (ret) - return ret; - - v = c_offset | 1; - if (dev_priv->vram_sys_base) { - v += dev_priv->vram_sys_base; - v |= 0x30; - } - - i = 0; - while (v < dev_priv->vram_sys_base + c_offset + c_size) { - BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, lower_32_bits(v)); - BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, upper_32_bits(v)); - v += 0x1000; - i += 8; - } - - while (i < pt_size) { - BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, 0x00000000); - BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, 0x00000000); - i += 8; - } - - BAR0_WI32(chan->vm_pd, 0x00, priv->pramin_pt->instance | 0x63); - BAR0_WI32(chan->vm_pd, 0x04, 0x00000000); - - /* VRAM page table(s), mapped into VM at +1GiB */ - for (i = 0; i < dev_priv->vm_vram_pt_nr; i++) { - ret = nouveau_gpuobj_new_ref(dev, chan, NULL, 0, - NV50_VM_BLOCK/65536*8, 0, 0, - &chan->vm_vram_pt[i]); - if (ret) { - NV_ERROR(dev, "Error creating VRAM page tables: %d\n", - ret); - dev_priv->vm_vram_pt_nr = i; - return ret; - } - dev_priv->vm_vram_pt[i] = chan->vm_vram_pt[i]->gpuobj; - - for (v = 0; v < dev_priv->vm_vram_pt[i]->im_pramin->size; - v += 4) - BAR0_WI32(dev_priv->vm_vram_pt[i], v, 0); - - BAR0_WI32(chan->vm_pd, 0x10 + (i*8), - chan->vm_vram_pt[i]->instance | 0x61); - BAR0_WI32(chan->vm_pd, 0x14 + (i*8), 0); - } - - /* DMA object for PRAMIN BAR */ - ret = nouveau_gpuobj_new_ref(dev, chan, chan, 0, 6*4, 16, 0, - &priv->pramin_bar); - if (ret) - return ret; - BAR0_WI32(priv->pramin_bar->gpuobj, 0x00, 0x7fc00000); - BAR0_WI32(priv->pramin_bar->gpuobj, 0x04, dev_priv->ramin_size - 1); - BAR0_WI32(priv->pramin_bar->gpuobj, 0x08, 0x00000000); - BAR0_WI32(priv->pramin_bar->gpuobj, 0x0c, 0x00000000); - BAR0_WI32(priv->pramin_bar->gpuobj, 0x10, 0x00000000); - BAR0_WI32(priv->pramin_bar->gpuobj, 0x14, 0x00000000); - - /* DMA object for FB BAR */ - ret = nouveau_gpuobj_new_ref(dev, chan, chan, 0, 6*4, 16, 0, - &priv->fb_bar); - if (ret) - return ret; - BAR0_WI32(priv->fb_bar->gpuobj, 0x00, 0x7fc00000); - BAR0_WI32(priv->fb_bar->gpuobj, 0x04, 0x40000000 + - drm_get_resource_len(dev, 1) - 1); - BAR0_WI32(priv->fb_bar->gpuobj, 0x08, 0x40000000); - BAR0_WI32(priv->fb_bar->gpuobj, 0x0c, 0x00000000); - BAR0_WI32(priv->fb_bar->gpuobj, 0x10, 0x00000000); - BAR0_WI32(priv->fb_bar->gpuobj, 0x14, 0x00000000); - - /* Poke the relevant regs, and pray it works :) */ - nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->instance >> 12)); - nv_wr32(dev, NV50_PUNK_UNK1710, 0); - nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->instance >> 12) | - NV50_PUNK_BAR_CFG_BASE_VALID); - nv_wr32(dev, NV50_PUNK_BAR1_CTXDMA, (priv->fb_bar->instance >> 4) | - NV50_PUNK_BAR1_CTXDMA_VALID); - nv_wr32(dev, NV50_PUNK_BAR3_CTXDMA, (priv->pramin_bar->instance >> 4) | - NV50_PUNK_BAR3_CTXDMA_VALID); - - for (i = 0; i < 8; i++) - nv_wr32(dev, 0x1900 + (i*4), 0); - - /* Assume that praying isn't enough, check that we can re-read the - * entire fake channel back from the PRAMIN BAR */ - dev_priv->engine.instmem.prepare_access(dev, false); - for (i = 0; i < c_size; i += 4) { - if (nv_rd32(dev, NV_RAMIN + i) != nv_ri32(dev, i)) { - NV_ERROR(dev, "Error reading back PRAMIN at 0x%08x\n", - i); - dev_priv->engine.instmem.finish_access(dev); - return -EINVAL; - } - } - dev_priv->engine.instmem.finish_access(dev); - - nv_wr32(dev, NV50_PUNK_BAR0_PRAMIN, save_nv001700); - - /* Global PRAMIN heap */ - if (nouveau_mem_init_heap(&dev_priv->ramin_heap, - c_size, dev_priv->ramin_size - c_size)) { - dev_priv->ramin_heap = NULL; - NV_ERROR(dev, "Failed to init RAMIN heap\n"); - } - - /*XXX: incorrect, but needed to make hash func "work" */ - dev_priv->ramht_offset = 0x10000; - dev_priv->ramht_bits = 9; - dev_priv->ramht_size = (1 << dev_priv->ramht_bits); - return 0; -} - -void -nv50_instmem_takedown(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv; - struct nouveau_channel *chan = dev_priv->fifos[0]; - int i; - - NV_DEBUG(dev, "\n"); - - if (!priv) - return; - - /* Restore state from before init */ - for (i = 0x1700; i <= 0x1710; i += 4) - nv_wr32(dev, i, priv->save1700[(i - 0x1700) / 4]); - - nouveau_gpuobj_ref_del(dev, &priv->fb_bar); - nouveau_gpuobj_ref_del(dev, &priv->pramin_bar); - nouveau_gpuobj_ref_del(dev, &priv->pramin_pt); - - /* Destroy dummy channel */ - if (chan) { - for (i = 0; i < dev_priv->vm_vram_pt_nr; i++) { - nouveau_gpuobj_ref_del(dev, &chan->vm_vram_pt[i]); - dev_priv->vm_vram_pt[i] = NULL; - } - dev_priv->vm_vram_pt_nr = 0; - - nouveau_gpuobj_del(dev, &chan->vm_pd); - nouveau_gpuobj_ref_del(dev, &chan->ramfc); - nouveau_gpuobj_ref_del(dev, &chan->ramin); - nouveau_mem_takedown(&chan->ramin_heap); - - dev_priv->fifos[0] = dev_priv->fifos[127] = NULL; - kfree(chan); - } - - dev_priv->engine.instmem.priv = NULL; - kfree(priv); -} - -int -nv50_instmem_suspend(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_channel *chan = dev_priv->fifos[0]; - struct nouveau_gpuobj *ramin = chan->ramin->gpuobj; - int i; - - ramin->im_backing_suspend = vmalloc(ramin->im_pramin->size); - if (!ramin->im_backing_suspend) - return -ENOMEM; - - for (i = 0; i < ramin->im_pramin->size; i += 4) - ramin->im_backing_suspend[i/4] = nv_ri32(dev, i); - return 0; -} - -void -nv50_instmem_resume(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv; - struct nouveau_channel *chan = dev_priv->fifos[0]; - struct nouveau_gpuobj *ramin = chan->ramin->gpuobj; - int i; - - nv_wr32(dev, NV50_PUNK_BAR0_PRAMIN, (ramin->im_backing_start >> 16)); - for (i = 0; i < ramin->im_pramin->size; i += 4) - BAR0_WI32(ramin, i, ramin->im_backing_suspend[i/4]); - vfree(ramin->im_backing_suspend); - ramin->im_backing_suspend = NULL; - - /* Poke the relevant regs, and pray it works :) */ - nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->instance >> 12)); - nv_wr32(dev, NV50_PUNK_UNK1710, 0); - nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->instance >> 12) | - NV50_PUNK_BAR_CFG_BASE_VALID); - nv_wr32(dev, NV50_PUNK_BAR1_CTXDMA, (priv->fb_bar->instance >> 4) | - NV50_PUNK_BAR1_CTXDMA_VALID); - nv_wr32(dev, NV50_PUNK_BAR3_CTXDMA, (priv->pramin_bar->instance >> 4) | - NV50_PUNK_BAR3_CTXDMA_VALID); - - for (i = 0; i < 8; i++) - nv_wr32(dev, 0x1900 + (i*4), 0); -} - -int -nv50_instmem_populate(struct drm_device *dev, struct nouveau_gpuobj *gpuobj, - uint32_t *sz) -{ - int ret; - - if (gpuobj->im_backing) - return -EINVAL; - - *sz = ALIGN(*sz, NV50_INSTMEM_PAGE_SIZE); - if (*sz == 0) - return -EINVAL; - - ret = nouveau_bo_new(dev, NULL, *sz, 0, TTM_PL_FLAG_VRAM, 0, 0x0000, - true, false, &gpuobj->im_backing); - if (ret) { - NV_ERROR(dev, "error getting PRAMIN backing pages: %d\n", ret); - return ret; - } - - ret = nouveau_bo_pin(gpuobj->im_backing, TTM_PL_FLAG_VRAM); - if (ret) { - NV_ERROR(dev, "error pinning PRAMIN backing VRAM: %d\n", ret); - nouveau_bo_ref(NULL, &gpuobj->im_backing); - return ret; - } - - gpuobj->im_backing_start = gpuobj->im_backing->bo.mem.mm_node->start; - gpuobj->im_backing_start <<= PAGE_SHIFT; - - return 0; -} - -void -nv50_instmem_clear(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - - if (gpuobj && gpuobj->im_backing) { - if (gpuobj->im_bound) - dev_priv->engine.instmem.unbind(dev, gpuobj); - nouveau_bo_unpin(gpuobj->im_backing); - nouveau_bo_ref(NULL, &gpuobj->im_backing); - gpuobj->im_backing = NULL; - } -} - -int -nv50_instmem_bind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv; - struct nouveau_gpuobj *pramin_pt = priv->pramin_pt->gpuobj; - uint32_t pte, pte_end; - uint64_t vram; - - if (!gpuobj->im_backing || !gpuobj->im_pramin || gpuobj->im_bound) - return -EINVAL; - - NV_DEBUG(dev, "st=0x%0llx sz=0x%0llx\n", - gpuobj->im_pramin->start, gpuobj->im_pramin->size); - - pte = (gpuobj->im_pramin->start >> 12) << 1; - pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte; - vram = gpuobj->im_backing_start; - - NV_DEBUG(dev, "pramin=0x%llx, pte=%d, pte_end=%d\n", - gpuobj->im_pramin->start, pte, pte_end); - NV_DEBUG(dev, "first vram page: 0x%08x\n", gpuobj->im_backing_start); - - vram |= 1; - if (dev_priv->vram_sys_base) { - vram += dev_priv->vram_sys_base; - vram |= 0x30; - } - - dev_priv->engine.instmem.prepare_access(dev, true); - while (pte < pte_end) { - nv_wo32(dev, pramin_pt, pte++, lower_32_bits(vram)); - nv_wo32(dev, pramin_pt, pte++, upper_32_bits(vram)); - vram += NV50_INSTMEM_PAGE_SIZE; - } - dev_priv->engine.instmem.finish_access(dev); - - nv_wr32(dev, 0x100c80, 0x00040001); - if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { - NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (1)\n"); - NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80)); - return -EBUSY; - } - - nv_wr32(dev, 0x100c80, 0x00060001); - if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { - NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); - NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80)); - return -EBUSY; - } - - gpuobj->im_bound = 1; - return 0; -} - -int -nv50_instmem_unbind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv; - uint32_t pte, pte_end; - - if (gpuobj->im_bound == 0) - return -EINVAL; - - pte = (gpuobj->im_pramin->start >> 12) << 1; - pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte; - - dev_priv->engine.instmem.prepare_access(dev, true); - while (pte < pte_end) { - nv_wo32(dev, priv->pramin_pt->gpuobj, pte++, 0x00000000); - nv_wo32(dev, priv->pramin_pt->gpuobj, pte++, 0x00000000); - } - dev_priv->engine.instmem.finish_access(dev); - - gpuobj->im_bound = 0; - return 0; -} - -void -nv50_instmem_prepare_access(struct drm_device *dev, bool write) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv; - - priv->last_access_wr = write; -} - -void -nv50_instmem_finish_access(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv; - - if (priv->last_access_wr) { - nv_wr32(dev, 0x070000, 0x00000001); - if (!nv_wait(0x070000, 0x00000001, 0x00000000)) - NV_ERROR(dev, "PRAMIN flush timeout\n"); - } -} - |
