diff options
Diffstat (limited to 'shared-core/nouveau_fifo.c')
| -rw-r--r-- | shared-core/nouveau_fifo.c | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/shared-core/nouveau_fifo.c b/shared-core/nouveau_fifo.c new file mode 100644 index 00000000..5b8cabd8 --- /dev/null +++ b/shared-core/nouveau_fifo.c @@ -0,0 +1,428 @@ +/* + * Copyright 2005-2006 Stephane Marchesin + * 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 + * PRECISION INSIGHT 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" +#include "nouveau_drm.h" + + +/* returns the number of hw fifos */ +int nouveau_fifo_number(drm_device_t* dev) +{ + drm_nouveau_private_t *dev_priv=dev->dev_private; + switch(dev_priv->card_type) + { + case NV_03: + return 8; + case NV_04: + case NV_05: + return 16; + default: + return 32; + } +} + +/*********************************** + * functions doing the actual work + ***********************************/ + +/* voir nv_xaa.c : NVResetGraphics + * mémoire mappée par nv_driver.c : NVMapMem + * voir nv_driver.c : NVPreInit + */ + +static void nouveau_fifo_init(drm_device_t* dev) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + + /* Init PFIFO - This is an exact copy of what's done in the Xorg ddx so far. + * We should be able to figure out what's happening from the + * resources available.. + */ + + if (dev->irq_enabled) + nouveau_irq_postinstall(dev); + + if (dev_priv->card_type >= NV_40) + NV_WRITE(NV_PGRAPH_NV40_UNK220, dev_priv->fb_obj->instance >> 4); + + DRM_DEBUG("%s: setting FIFO %d active\n", __func__, dev_priv->cur_fifo); + + // FIXME remove all the stuff that's done in nouveau_fifo_alloc + NV_WRITE(NV_PFIFO_CACHES, 0x00000000); + NV_WRITE(NV_PFIFO_MODE, 0x00000000); + + NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000000); + NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000); + if (dev_priv->card_type >= NV_40) + NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00010000|dev_priv->cur_fifo); + else + NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00000100|dev_priv->cur_fifo); + NV_WRITE(NV_PFIFO_CACH1_DMAP, dev_priv->cur_fifo * dev_priv->cmdbuf_ch_size); + NV_WRITE(NV_PFIFO_CACH1_DMAG, dev_priv->cur_fifo * dev_priv->cmdbuf_ch_size); + NV_WRITE(NV_PFIFO_CACH1_DMAI, dev_priv->cmdbuf_obj->instance >> 4); + NV_WRITE(NV_PFIFO_CACH0_PSH0, 0x00000000); + NV_WRITE(NV_PFIFO_CACH0_PUL0, 0x00000000); + NV_WRITE(NV_PFIFO_SIZE , 0x0000FFFF); + NV_WRITE(NV_PFIFO_CACH1_HASH, 0x0000FFFF); + NV_WRITE(NV_PFIFO_RAMHT, + (0x03 << 24) /* search 128 */ | + ((dev_priv->objs.ht_bits - 9) << 16) | + (dev_priv->objs.ht_base >> 8) + ); + dev_priv->ramfc_offset=0x11000; + dev_priv->ramro_offset=0x11200; + NV_WRITE(NV_PFIFO_RAMFC, dev_priv->ramfc_offset>>8); /* RAMIN+0x11000 0.5k */ + NV_WRITE(NV_PFIFO_RAMRO, dev_priv->ramro_offset>>8); /* RAMIN+0x11200 0.5k */ + NV_WRITE(NV_PFIFO_CACH0_PUL1, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_DMAC, 0x00000000); + NV_WRITE(NV_PFIFO_CACH1_DMAS, 0x00000000); + NV_WRITE(NV_PFIFO_CACH1_ENG, 0x00000000); +#ifdef __BIG_ENDIAN + NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4|NV_PFIFO_CACH1_BIG_ENDIAN); +#else + NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4); +#endif + NV_WRITE(NV_PFIFO_CACH1_DMAPSH, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000001); + + NV_WRITE(NV_PGRAPH_CTX_USER, 0x0); + NV_WRITE(NV_PFIFO_DELAY_0, 0xff /* retrycount*/ ); + if (dev_priv->card_type >= NV_40) + NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x00002001); + else + NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10110000); + + NV_WRITE(NV_PFIFO_DMA_TIMESLICE, 0x001fffff); + NV_WRITE(NV_PFIFO_CACHES, 0x00000001); + + DRM_DEBUG("%s: CACHE1 GET/PUT readback %d/%d\n", __func__, + NV_READ(NV_PFIFO_CACH1_DMAG), + NV_READ(NV_PFIFO_CACH1_DMAP)); + + DRM_INFO("%s: OK\n", __func__); +} + +static int nouveau_dma_init(struct drm_device *dev) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + struct nouveau_config *config = &dev_priv->config; + struct mem_block *cb; + int cb_min_size = nouveau_fifo_number(dev) * NV03_FIFO_SIZE; + + /* XXX this should be done earlier on init */ + nouveau_hash_table_init(dev); + + if (dev_priv->card_type >= NV_40) + dev_priv->fb_obj = nouveau_dma_object_create(dev, + 0, nouveau_mem_fb_amount(dev), + NV_DMA_ACCESS_RW, NV_DMA_TARGET_VIDMEM); + + /* Defaults for unconfigured values */ + if (!config->cmdbuf.location) + config->cmdbuf.location = NOUVEAU_MEM_FB; + if (!config->cmdbuf.size || config->cmdbuf.size < cb_min_size) + config->cmdbuf.size = cb_min_size; + + cb = nouveau_mem_alloc(dev, 0, config->cmdbuf.size, + config->cmdbuf.location, (DRMFILE)-2); + /* Try defaults if that didn't succeed */ + if (!cb) { + config->cmdbuf.location = NOUVEAU_MEM_FB; + config->cmdbuf.size = cb_min_size; + cb = nouveau_mem_alloc(dev, 0, config->cmdbuf.size, + config->cmdbuf.location, (DRMFILE)-2); + } + if (!cb) { + DRM_ERROR("Couldn't allocate DMA command buffer.\n"); + return DRM_ERR(ENOMEM); + } + + if (config->cmdbuf.location == NOUVEAU_MEM_AGP) + dev_priv->cmdbuf_obj = nouveau_dma_object_create(dev, + cb->start, cb->size, NV_DMA_ACCESS_RO, NV_DMA_TARGET_AGP); + else + dev_priv->cmdbuf_obj = nouveau_dma_object_create(dev, + cb->start - drm_get_resource_start(dev, 1), + cb->size, NV_DMA_ACCESS_RO, NV_DMA_TARGET_VIDMEM); + dev_priv->cmdbuf_ch_size = (uint32_t)cb->size / nouveau_fifo_number(dev); + dev_priv->cmdbuf_alloc = cb; + + nouveau_fifo_init(dev); + DRM_INFO("DMA command buffer is %dKiB at 0x%08x(%s)\n", + (uint32_t)cb->size>>10, (uint32_t)cb->start, + config->cmdbuf.location == NOUVEAU_MEM_FB ? "VRAM" : "AGP"); + DRM_INFO("FIFO size is %dKiB\n", dev_priv->cmdbuf_ch_size>>10); + + return 0; +} + +/* allocates and initializes a fifo for user space consumption */ +static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init, DRMFILE filp) +{ + int i; + int ret; + drm_nouveau_private_t *dev_priv = dev->dev_private; + uint32_t ctx_addr,ctx_size; + + /* Init cmdbuf on first FIFO init, this is delayed until now to + * give the ddx a chance to configure the cmdbuf with SETPARAM + */ + if (!dev_priv->cmdbuf_alloc) { + ret = nouveau_dma_init(dev); + if (ret) + return ret; + } + + /* + * Alright, here is the full story + * Nvidia cards have multiple hw fifo contexts (praise them for that, + * no complicated crash-prone context switches) + * We allocate a new context for each app and let it write to it directly + * (woo, full userspace command submission !) + * When there are no more contexts, you lost + */ + for(i=0;i<nouveau_fifo_number(dev);i++) + if (dev_priv->fifos[i].used==0) + break; + + DRM_INFO("Allocating FIFO number %d\n", i); + /* no more fifos. you lost. */ + if (i==nouveau_fifo_number(dev)) + return DRM_ERR(EINVAL); + + /* that fifo is used */ + dev_priv->fifos[i].used=1; + dev_priv->fifos[i].filp=filp; + + init->channel = i; + init->put_base = i*dev_priv->cmdbuf_ch_size; + dev_priv->cur_fifo = init->channel; + + nouveau_wait_for_idle(dev); + + /* disable the fifo caches */ + NV_WRITE(NV_PFIFO_CACHES, 0x00000000); + NV_WRITE(NV_PFIFO_CACH1_DMAPSH, NV_READ(NV_PFIFO_CACH1_DMAPSH)&(~0x1)); + NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000000); + NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000); + + switch(dev_priv->card_type) + { + case NV_03: + case NV_04: + case NV_05: + ctx_size=32; + break; + case NV_10: + case NV_20: + case NV_30: + ctx_size=64; + break; + case NV_40: + case G_70: + default: + ctx_size=128; + break; + } + + ctx_addr=NV_RAMIN+dev_priv->ramfc_offset+init->channel*ctx_size; + // clear the fifo context + for(i=0;i<ctx_size/4;i++) + NV_WRITE(ctx_addr+4*i,0x0); + + NV_WRITE(ctx_addr,init->put_base); + NV_WRITE(ctx_addr+4,init->put_base); + if (dev_priv->card_type <= NV_05) + { + // that's what is done in nvosdk, but that part of the code is buggy so... + NV_WRITE(ctx_addr+8,dev_priv->cmdbuf_obj->instance >> 4); +#ifdef __BIG_ENDIAN + NV_WRITE(ctx_addr+16,NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4|NV_PFIFO_CACH1_BIG_ENDIAN); +#else + NV_WRITE(ctx_addr+16,NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4); +#endif + } + else + { + NV_WRITE(ctx_addr+12,dev_priv->cmdbuf_obj->instance >> 4/*DMA INST/DMA COUNT*/); +#ifdef __BIG_ENDIAN + NV_WRITE(ctx_addr+20,NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4|NV_PFIFO_CACH1_BIG_ENDIAN); +#else + NV_WRITE(ctx_addr+20,NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4); +#endif + } + + /* enable the fifo dma operation */ + NV_WRITE(NV_PFIFO_MODE,NV_READ(NV_PFIFO_MODE)|(1<<init->channel)); + + // FIXME check if we need to refill the time quota with something like NV_WRITE(0x204C, 0x0003FFFF); + + if (dev_priv->card_type >= NV_40) + NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00010000|dev_priv->cur_fifo); + else + NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00000100|dev_priv->cur_fifo); + + NV_WRITE(NV_PFIFO_CACH1_DMAP, init->put_base); + NV_WRITE(NV_PFIFO_CACH1_DMAG, init->put_base); + NV_WRITE(NV03_FIFO_REGS_DMAPUT(init->channel), init->put_base); + NV_WRITE(NV03_FIFO_REGS_DMAGET(init->channel), init->put_base); + NV_WRITE(NV_PFIFO_CACH1_DMAI, dev_priv->cmdbuf_obj->instance >> 4); + NV_WRITE(NV_PFIFO_SIZE , 0x0000FFFF); + NV_WRITE(NV_PFIFO_CACH1_HASH, 0x0000FFFF); + + NV_WRITE(NV_PFIFO_CACH0_PUL1, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_DMAC, 0x00000000); + NV_WRITE(NV_PFIFO_CACH1_DMAS, 0x00000000); + NV_WRITE(NV_PFIFO_CACH1_ENG, 0x00000000); +#ifdef __BIG_ENDIAN + NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4|NV_PFIFO_CACH1_BIG_ENDIAN); +#else + NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4); +#endif + NV_WRITE(NV_PFIFO_CACH1_DMAPSH, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000001); + NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000001); + + /* reenable the fifo caches */ + NV_WRITE(NV_PFIFO_CACHES, 0x00000001); + + /* make the fifo available to user space */ + /* first, the fifo control regs */ + init->ctrl = dev_priv->mmio->offset + NV03_FIFO_REGS(init->channel); + init->ctrl_size = NV03_FIFO_REGS_SIZE; + ret = drm_addmap(dev, init->ctrl, init->ctrl_size, _DRM_REGISTERS, + 0, &dev_priv->fifos[init->channel].regs); + if (ret != 0) + return ret; + + /* then, the fifo itself */ + init->cmdbuf = dev_priv->cmdbuf_alloc->start; + init->cmdbuf += init->channel * dev_priv->cmdbuf_ch_size; + init->cmdbuf_size = dev_priv->cmdbuf_ch_size; + ret = drm_addmap(dev, init->cmdbuf, init->cmdbuf_size, _DRM_REGISTERS, + 0, &dev_priv->fifos[init->channel].map); + if (ret != 0) + return ret; + + /* FIFO has no objects yet */ + dev_priv->fifos[init->channel].objs = NULL; + + DRM_INFO("%s: initialised FIFO %d\n", __func__, init->channel); + return 0; +} + +/* stops a fifo */ +void nouveau_fifo_free(drm_device_t* dev,int n) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + dev_priv->fifos[n].used=0; + DRM_INFO("%s: freeing fifo %d\n", __func__, n); + + /* disable the fifo caches */ + NV_WRITE(NV_PFIFO_CACHES, 0x00000000); + + NV_WRITE(NV_PFIFO_MODE,NV_READ(NV_PFIFO_MODE)&~(1<<n)); + // FIXME XXX needs more code + + /* reenable the fifo caches */ + NV_WRITE(NV_PFIFO_CACHES, 0x00000001); +} + +/* cleanups all the fifos from filp */ +void nouveau_fifo_cleanup(drm_device_t* dev, DRMFILE filp) +{ + int i; + drm_nouveau_private_t *dev_priv = dev->dev_private; + + DRM_DEBUG("clearing FIFO enables from filp\n"); + for(i=0;i<nouveau_fifo_number(dev);i++) + if (dev_priv->fifos[i].filp==filp) + nouveau_fifo_free(dev,i); + + /* check we still point at an active channel */ + if (dev_priv->fifos[dev_priv->cur_fifo].used == 0) { + DRM_DEBUG("%s: cur_fifo is no longer owned.\n", __func__); + for (i=0;i<nouveau_fifo_number(dev);i++) + if (dev_priv->fifos[i].used) break; + if (i==nouveau_fifo_number(dev)) + i=0; + DRM_DEBUG("%s: new cur_fifo is %d\n", __func__, i); + dev_priv->cur_fifo = i; + } + +/* if (dev_priv->cmdbuf_alloc) + nouveau_fifo_init(dev);*/ +} + +int nouveau_fifo_id_get(drm_device_t* dev, DRMFILE filp) +{ + drm_nouveau_private_t *dev_priv=dev->dev_private; + int i; + + for(i=0;i<nouveau_fifo_number(dev);i++) + if (dev_priv->fifos[i].filp == filp) + return i; + return -1; +} + +/*********************************** + * ioctls wrapping the functions + ***********************************/ + +static int nouveau_ioctl_fifo_alloc(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_nouveau_fifo_alloc_t init; + int res; + DRM_COPY_FROM_USER_IOCTL(init, (drm_nouveau_fifo_alloc_t __user *) data, sizeof(init)); + + res=nouveau_fifo_alloc(dev,&init,filp); + if (!res) + DRM_COPY_TO_USER_IOCTL((drm_nouveau_fifo_alloc_t __user *)data, init, sizeof(init)); + + return res; +} + +/*********************************** + * finally, the ioctl table + ***********************************/ + +drm_ioctl_desc_t nouveau_ioctls[] = { + [DRM_IOCTL_NR(DRM_NOUVEAU_FIFO_ALLOC)] = {nouveau_ioctl_fifo_alloc, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_NOUVEAU_OBJECT_INIT)] = {nouveau_ioctl_object_init, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_NOUVEAU_DMA_OBJECT_INIT)] = {nouveau_ioctl_dma_object_init, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_NOUVEAU_MEM_ALLOC)] = {nouveau_ioctl_mem_alloc, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_NOUVEAU_MEM_FREE)] = {nouveau_ioctl_mem_free, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_NOUVEAU_GETPARAM)] = {nouveau_ioctl_getparam, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_NOUVEAU_SETPARAM)] = {nouveau_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}, +}; + +int nouveau_max_ioctl = DRM_ARRAY_SIZE(nouveau_ioctls); + + |