diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_evo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_evo.c | 424 |
1 files changed, 424 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_evo.c b/drivers/gpu/drm/nouveau/nv50_evo.c new file mode 100644 index 000000000000..a2cfaa691e9b --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv50_evo.c @@ -0,0 +1,424 @@ +/* + * Copyright 2010 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 + */ + +#include "drmP.h" + +#include "nouveau_drv.h" +#include "nouveau_dma.h" +#include "nouveau_ramht.h" +#include "nv50_display.h" + +static void +nv50_evo_channel_del(struct nouveau_channel **pevo) +{ + struct nouveau_channel *evo = *pevo; + + if (!evo) + return; + *pevo = NULL; + + nouveau_gpuobj_channel_takedown(evo); + nouveau_bo_unmap(evo->pushbuf_bo); + nouveau_bo_ref(NULL, &evo->pushbuf_bo); + + if (evo->user) + iounmap(evo->user); + + kfree(evo); +} + +void +nv50_evo_dmaobj_init(struct nouveau_gpuobj *obj, u32 memtype, u64 base, u64 size) +{ + struct drm_nouveau_private *dev_priv = obj->dev->dev_private; + u32 flags5; + + if (dev_priv->chipset < 0xc0) { + /* not supported on 0x50, specified in format mthd */ + if (dev_priv->chipset == 0x50) + memtype = 0; + flags5 = 0x00010000; + } else { + if (memtype & 0x80000000) + flags5 = 0x00000000; /* large pages */ + else + flags5 = 0x00020000; + } + + nv50_gpuobj_dma_init(obj, 0, 0x3d, base, size, NV_MEM_TARGET_VRAM, + NV_MEM_ACCESS_RW, (memtype >> 8) & 0xff, 0); + nv_wo32(obj, 0x14, flags5); + dev_priv->engine.instmem.flush(obj->dev); +} + +int +nv50_evo_dmaobj_new(struct nouveau_channel *evo, u32 handle, u32 memtype, + u64 base, u64 size, struct nouveau_gpuobj **pobj) +{ + struct nv50_display *disp = nv50_display(evo->dev); + struct nouveau_gpuobj *obj = NULL; + int ret; + + ret = nouveau_gpuobj_new(evo->dev, disp->master, 6*4, 32, 0, &obj); + if (ret) + return ret; + obj->engine = NVOBJ_ENGINE_DISPLAY; + + nv50_evo_dmaobj_init(obj, memtype, base, size); + + ret = nouveau_ramht_insert(evo, handle, obj); + if (ret) + goto out; + + if (pobj) + nouveau_gpuobj_ref(obj, pobj); +out: + nouveau_gpuobj_ref(NULL, &obj); + return ret; +} + +static int +nv50_evo_channel_new(struct drm_device *dev, int chid, + struct nouveau_channel **pevo) +{ + struct nv50_display *disp = nv50_display(dev); + struct nouveau_channel *evo; + int ret; + + evo = kzalloc(sizeof(struct nouveau_channel), GFP_KERNEL); + if (!evo) + return -ENOMEM; + *pevo = evo; + + evo->id = chid; + evo->dev = dev; + evo->user_get = 4; + evo->user_put = 0; + + ret = nouveau_bo_new(dev, NULL, 4096, 0, TTM_PL_FLAG_VRAM, 0, 0, + &evo->pushbuf_bo); + if (ret == 0) + ret = nouveau_bo_pin(evo->pushbuf_bo, TTM_PL_FLAG_VRAM); + if (ret) { + NV_ERROR(dev, "Error creating EVO DMA push buffer: %d\n", ret); + nv50_evo_channel_del(pevo); + return ret; + } + + ret = nouveau_bo_map(evo->pushbuf_bo); + if (ret) { + NV_ERROR(dev, "Error mapping EVO DMA push buffer: %d\n", ret); + nv50_evo_channel_del(pevo); + return ret; + } + + evo->user = ioremap(pci_resource_start(dev->pdev, 0) + + NV50_PDISPLAY_USER(evo->id), PAGE_SIZE); + if (!evo->user) { + NV_ERROR(dev, "Error mapping EVO control regs.\n"); + nv50_evo_channel_del(pevo); + return -ENOMEM; + } + + /* bind primary evo channel's ramht to the channel */ + if (disp->master && evo != disp->master) + nouveau_ramht_ref(disp->master->ramht, &evo->ramht, NULL); + + return 0; +} + +static int +nv50_evo_channel_init(struct nouveau_channel *evo) +{ + struct drm_device *dev = evo->dev; + int id = evo->id, ret, i; + u64 pushbuf = evo->pushbuf_bo->bo.mem.start << PAGE_SHIFT; + u32 tmp; + + tmp = nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id)); + if ((tmp & 0x009f0000) == 0x00020000) + nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(id), tmp | 0x00800000); + + tmp = nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id)); + if ((tmp & 0x003f0000) == 0x00030000) + nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(id), tmp | 0x00600000); + + /* initialise fifo */ + nv_wr32(dev, NV50_PDISPLAY_EVO_DMA_CB(id), pushbuf >> 8 | + NV50_PDISPLAY_EVO_DMA_CB_LOCATION_VRAM | + NV50_PDISPLAY_EVO_DMA_CB_VALID); + nv_wr32(dev, NV50_PDISPLAY_EVO_UNK2(id), 0x00010000); + nv_wr32(dev, NV50_PDISPLAY_EVO_HASH_TAG(id), id); + nv_mask(dev, NV50_PDISPLAY_EVO_CTRL(id), NV50_PDISPLAY_EVO_CTRL_DMA, + NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED); + + nv_wr32(dev, NV50_PDISPLAY_USER_PUT(id), 0x00000000); + nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x01000003 | + NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED); + if (!nv_wait(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x80000000, 0x00000000)) { + NV_ERROR(dev, "EvoCh %d init timeout: 0x%08x\n", id, + nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id))); + return -EBUSY; + } + + /* enable error reporting on the channel */ + nv_mask(dev, 0x610028, 0x00000000, 0x00010001 << id); + + evo->dma.max = (4096/4) - 2; + evo->dma.put = 0; + evo->dma.cur = evo->dma.put; + evo->dma.free = evo->dma.max - evo->dma.cur; + + ret = RING_SPACE(evo, NOUVEAU_DMA_SKIPS); + if (ret) + return ret; + + for (i = 0; i < NOUVEAU_DMA_SKIPS; i++) + OUT_RING(evo, 0); + + return 0; +} + +static void +nv50_evo_channel_fini(struct nouveau_channel *evo) +{ + struct drm_device *dev = evo->dev; + int id = evo->id; + + nv_mask(dev, 0x610028, 0x00010001 << id, 0x00000000); + nv_mask(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x00001010, 0x00001000); + nv_wr32(dev, NV50_PDISPLAY_INTR_0, (1 << id)); + nv_mask(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x00000003, 0x00000000); + if (!nv_wait(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x001e0000, 0x00000000)) { + NV_ERROR(dev, "EvoCh %d takedown timeout: 0x%08x\n", id, + nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id))); + } +} + +static void +nv50_evo_destroy(struct drm_device *dev) +{ + struct nv50_display *disp = nv50_display(dev); + int i; + + for (i = 0; i < 2; i++) { + if (disp->crtc[i].sem.bo) { + nouveau_bo_unmap(disp->crtc[i].sem.bo); + nouveau_bo_ref(NULL, &disp->crtc[i].sem.bo); + } + nv50_evo_channel_del(&disp->crtc[i].sync); + } + nouveau_gpuobj_ref(NULL, &disp->ntfy); + nv50_evo_channel_del(&disp->master); +} + +static int +nv50_evo_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv50_display *disp = nv50_display(dev); + struct nouveau_gpuobj *ramht = NULL; + struct nouveau_channel *evo; + int ret, i, j; + + /* create primary evo channel, the one we use for modesetting + * purporses + */ + ret = nv50_evo_channel_new(dev, 0, &disp->master); + if (ret) + return ret; + evo = disp->master; + + /* setup object management on it, any other evo channel will + * use this also as there's no per-channel support on the + * hardware + */ + ret = nouveau_gpuobj_new(dev, NULL, 32768, 65536, + NVOBJ_FLAG_ZERO_ALLOC, &evo->ramin); + if (ret) { + NV_ERROR(dev, "Error allocating EVO channel memory: %d\n", ret); + goto err; + } + + ret = drm_mm_init(&evo->ramin_heap, 0, 32768); + if (ret) { + NV_ERROR(dev, "Error initialising EVO PRAMIN heap: %d\n", ret); + goto err; + } + + ret = nouveau_gpuobj_new(dev, evo, 4096, 16, 0, &ramht); + if (ret) { + NV_ERROR(dev, "Unable to allocate EVO RAMHT: %d\n", ret); + goto err; + } + + ret = nouveau_ramht_new(dev, ramht, &evo->ramht); + nouveau_gpuobj_ref(NULL, &ramht); + if (ret) + goto err; + + /* not sure exactly what this is.. + * + * the first dword of the structure is used by nvidia to wait on + * full completion of an EVO "update" command. + * + * method 0x8c on the master evo channel will fill a lot more of + * this structure with some undefined info + */ + ret = nouveau_gpuobj_new(dev, disp->master, 0x1000, 0, + NVOBJ_FLAG_ZERO_ALLOC, &disp->ntfy); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(disp->master, NvEvoSync, 0x0000, + disp->ntfy->vinst, disp->ntfy->size, NULL); + if (ret) + goto err; + + /* create some default objects for the scanout memtypes we support */ + ret = nv50_evo_dmaobj_new(disp->master, NvEvoVRAM, 0x0000, + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(disp->master, NvEvoVRAM_LP, 0x80000000, + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(disp->master, NvEvoFB32, 0x80000000 | + (dev_priv->chipset < 0xc0 ? 0x7a00 : 0xfe00), + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(disp->master, NvEvoFB16, 0x80000000 | + (dev_priv->chipset < 0xc0 ? 0x7000 : 0xfe00), + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + /* create "display sync" channels and other structures we need + * to implement page flipping + */ + for (i = 0; i < 2; i++) { + struct nv50_display_crtc *dispc = &disp->crtc[i]; + u64 offset; + + ret = nv50_evo_channel_new(dev, 1 + i, &dispc->sync); + if (ret) + goto err; + + ret = nouveau_bo_new(dev, NULL, 4096, 0x1000, TTM_PL_FLAG_VRAM, + 0, 0x0000, &dispc->sem.bo); + if (!ret) { + offset = dispc->sem.bo->bo.mem.start << PAGE_SHIFT; + + ret = nouveau_bo_pin(dispc->sem.bo, TTM_PL_FLAG_VRAM); + if (!ret) + ret = nouveau_bo_map(dispc->sem.bo); + if (ret) + nouveau_bo_ref(NULL, &dispc->sem.bo); + } + + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoSync, 0x0000, + offset, 4096, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoVRAM_LP, 0x80000000, + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB32, 0x80000000 | + (dev_priv->chipset < 0xc0 ? + 0x7a00 : 0xfe00), + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB16, 0x80000000 | + (dev_priv->chipset < 0xc0 ? + 0x7000 : 0xfe00), + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + for (j = 0; j < 4096; j += 4) + nouveau_bo_wr32(dispc->sem.bo, j / 4, 0x74b1e000); + dispc->sem.offset = 0; + } + + return 0; + +err: + nv50_evo_destroy(dev); + return ret; +} + +int +nv50_evo_init(struct drm_device *dev) +{ + struct nv50_display *disp = nv50_display(dev); + int ret, i; + + if (!disp->master) { + ret = nv50_evo_create(dev); + if (ret) + return ret; + } + + ret = nv50_evo_channel_init(disp->master); + if (ret) + return ret; + + for (i = 0; i < 2; i++) { + ret = nv50_evo_channel_init(disp->crtc[i].sync); + if (ret) + return ret; + } + + return 0; +} + +void +nv50_evo_fini(struct drm_device *dev) +{ + struct nv50_display *disp = nv50_display(dev); + int i; + + for (i = 0; i < 2; i++) { + if (disp->crtc[i].sync) + nv50_evo_channel_fini(disp->crtc[i].sync); + } + + if (disp->master) + nv50_evo_channel_fini(disp->master); + + nv50_evo_destroy(dev); +} |