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l---------[-rw-r--r--]linux-core/nouveau_fifo.c679
1 files changed, 1 insertions, 678 deletions
diff --git a/linux-core/nouveau_fifo.c b/linux-core/nouveau_fifo.c
index 7062bb81..60759a57 100644..120000
--- a/linux-core/nouveau_fifo.c
+++ b/linux-core/nouveau_fifo.c
@@ -1,678 +1 @@
-/*
- * 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;
- }
-}
-
-/* returns the size of fifo context */
-static int nouveau_fifo_ctx_size(drm_device_t* dev)
-{
- drm_nouveau_private_t *dev_priv=dev->dev_private;
-
- if (dev_priv->card_type >= NV_40)
- return 128;
- else if (dev_priv->card_type >= NV_10)
- return 64;
- else
- 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 int nouveau_fifo_instmem_configure(drm_device_t *dev)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- int i;
-
- /* Clear start of RAMIN, enough to cover RAMFC/HT/RO basically */
- for (i=0x00710000; i<0x00730000; i++)
- NV_WRITE(i, 0x00000000);
-
- /* FIFO hash table (RAMHT)
- * use 4k hash table at RAMIN+0x10000
- * TODO: extend the hash table
- */
- dev_priv->ramht_offset = 0x10000;
- dev_priv->ramht_bits = 9;
- dev_priv->ramht_size = (1 << dev_priv->ramht_bits);
- NV_WRITE(NV_PFIFO_RAMHT,
- (0x03 << 24) /* search 128 */ |
- ((dev_priv->ramht_bits - 9) << 16) |
- (dev_priv->ramht_offset >> 8)
- );
- DRM_DEBUG("RAMHT offset=0x%x, size=%d\n",
- dev_priv->ramht_offset,
- dev_priv->ramht_size);
-
- /* FIFO runout table (RAMRO) - 512k at 0x11200 */
- dev_priv->ramro_offset = 0x11200;
- dev_priv->ramro_size = 512;
- NV_WRITE(NV_PFIFO_RAMRO, dev_priv->ramro_offset>>8);
- DRM_DEBUG("RAMRO offset=0x%x, size=%d\n",
- dev_priv->ramro_offset,
- dev_priv->ramro_size);
-
- /* FIFO context table (RAMFC)
- * NV40 : Not sure exactly how to position RAMFC on some cards,
- * 0x30002 seems to position it at RAMIN+0x20000 on these
- * cards. RAMFC is 4kb (32 fifos, 128byte entries).
- * Others: Position RAMFC at RAMIN+0x11400
- */
- switch(dev_priv->card_type)
- {
- case NV_50:
- case NV_40:
- dev_priv->ramfc_offset = 0x20000;
- dev_priv->ramfc_size = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
- NV_WRITE(NV40_PFIFO_RAMFC, 0x30002);
- break;
- case NV_44:
- dev_priv->ramfc_offset = 0x20000;
- dev_priv->ramfc_size = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
- NV_WRITE(NV40_PFIFO_RAMFC, ((nouveau_mem_fb_amount(dev)-512*1024+dev_priv->ramfc_offset)>>16) |
- (2 << 16));
- break;
- case NV_30:
- case NV_20:
- case NV_10:
- dev_priv->ramfc_offset = 0x11400;
- dev_priv->ramfc_size = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
- NV_WRITE(NV_PFIFO_RAMFC, (dev_priv->ramfc_offset>>8) |
- (1 << 16) /* 64 Bytes entry*/);
- break;
- case NV_04:
- case NV_03:
- dev_priv->ramfc_offset = 0x11400;
- dev_priv->ramfc_size = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
- NV_WRITE(NV_PFIFO_RAMFC, dev_priv->ramfc_offset>>8);
- break;
- }
- DRM_DEBUG("RAMFC offset=0x%x, size=%d\n",
- dev_priv->ramfc_offset,
- dev_priv->ramfc_size);
-
- if (nouveau_instmem_init(dev, dev_priv->ramfc_offset +
- dev_priv->ramfc_size))
- return 1;
-
- return 0;
-}
-
-int nouveau_fifo_init(drm_device_t *dev)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- int ret;
-
- NV_WRITE(NV_PFIFO_CACHES, 0x00000000);
-
- ret = nouveau_fifo_instmem_configure(dev);
- if (ret) {
- DRM_ERROR("Failed to configure instance memory\n");
- return ret;
- }
-
- /* FIXME remove all the stuff that's done in nouveau_fifo_alloc */
-
- DRM_DEBUG("Setting defaults for remaining PFIFO regs\n");
-
- /* All channels into PIO mode */
- NV_WRITE(NV_PFIFO_MODE, 0x00000000);
-
- NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000000);
- NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000);
- /* Channel 0 active, PIO mode */
- NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00000000);
- /* PUT and GET to 0 */
- NV_WRITE(NV_PFIFO_CACH1_DMAP, 0x00000000);
- NV_WRITE(NV_PFIFO_CACH1_DMAP, 0x00000000);
- /* No cmdbuf object */
- NV_WRITE(NV_PFIFO_CACH1_DMAI, 0x00000000);
- 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_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);
-
- return 0;
-}
-
-static int
-nouveau_fifo_cmdbuf_alloc(struct drm_device *dev, int channel)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- struct nouveau_config *config = &dev_priv->config;
- struct mem_block *cb;
- struct nouveau_object *cb_dma = NULL;
- int cb_min_size = max(NV03_FIFO_SIZE,PAGE_SIZE);
-
- /* 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 | NOUVEAU_MEM_MAPPED,
- (DRMFILE)-2);
- if (!cb) {
- DRM_ERROR("Couldn't allocate DMA command buffer.\n");
- return DRM_ERR(ENOMEM);
- }
-
- if (cb->flags & NOUVEAU_MEM_AGP) {
- cb_dma = nouveau_dma_object_create(dev,
- cb->start, cb->size,
- NV_DMA_ACCESS_RO, NV_DMA_TARGET_AGP);
- } else if (dev_priv->card_type != NV_04) {
- cb_dma = nouveau_dma_object_create(dev,
- cb->start - drm_get_resource_start(dev, 1),
- cb->size,
- NV_DMA_ACCESS_RO, NV_DMA_TARGET_VIDMEM);
- } else {
- /* NV04 cmdbuf hack, from original ddx.. not sure of it's
- * exact reason for existing :) PCI access to cmdbuf in
- * VRAM.
- */
- cb_dma = nouveau_dma_object_create(dev,
- cb->start, cb->size,
- NV_DMA_ACCESS_RO, NV_DMA_TARGET_PCI);
- }
-
- if (!cb_dma) {
- nouveau_mem_free(dev, cb);
- DRM_ERROR("Failed to alloc DMA object for command buffer\n");
- return DRM_ERR(ENOMEM);
- }
-
- dev_priv->fifos[channel].cmdbuf_mem = cb;
- dev_priv->fifos[channel].cmdbuf_obj = cb_dma;
- return 0;
-}
-
-#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV04_RAMFC_##offset, (val))
-static void nouveau_nv04_context_init(drm_device_t *dev,
- drm_nouveau_fifo_alloc_t *init)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- struct nouveau_object *cb_obj;
- uint32_t fifoctx, ctx_size = 32;
- int i;
-
- cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
-
- fifoctx=NV_RAMIN+dev_priv->ramfc_offset+init->channel*ctx_size;
- // clear the fifo context
- for(i=0;i<ctx_size/4;i++)
- NV_WRITE(fifoctx+4*i,0x0);
-
- RAMFC_WR(DMA_PUT , init->put_base);
- RAMFC_WR(DMA_GET , init->put_base);
- RAMFC_WR(DMA_INSTANCE , nouveau_chip_instance_get(dev, cb_obj->instance));
-#ifdef __BIG_ENDIAN
- RAMFC_WR(DMA_FETCH, 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
- RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
-#endif
-}
-#undef RAMFC_WR
-
-#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV10_RAMFC_##offset, (val))
-static void nouveau_nv10_context_init(drm_device_t *dev,
- drm_nouveau_fifo_alloc_t *init)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- struct nouveau_fifo *chan = &dev_priv->fifos[init->channel];
- struct nouveau_object *cb_obj;
- uint32_t fifoctx, cb_inst, ctx_size = 64;
- int i;
-
- cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
- cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
- fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel * ctx_size;
- for (i = 0; i < ctx_size; i += 4)
- NV_WRITE(fifoctx + i, 0);
- RAMFC_WR(DMA_PUT, init->put_base);
- RAMFC_WR(DMA_GET, init->put_base);
- RAMFC_WR(REF_CNT, NV_READ(NV_PFIFO_CACH1_REF_CNT));
- RAMFC_WR(DMA_INSTANCE, (NV_READ(NV_PFIFO_CACH1_DMA_DCOUNT) << 16) |
- NV_READ(NV_PFIFO_CACH1_DMAI));
- RAMFC_WR(DMA_STATE, NV_READ(NV_PFIFO_CACH1_DMAS));
- RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_128_BYTES |
- NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
- NV_PFIFO_CACH1_DMAF_MAX_REQS_8 |
-#ifdef __BIG_ENDIAN
- NV_PFIFO_CACH1_BIG_ENDIAN |
-#else
- 0x00000000);
-#endif
- RAMFC_WR(ENGINE, NV_READ(NV_PFIFO_CACH1_ENG));
- RAMFC_WR(PULL1_ENGINE, NV_READ(NV_PFIFO_CACH1_PUL1));
- RAMFC_WR(ACQUIRE_VALUE, NV_READ(NV_PFIFO_CACH1_ACQUIRE_VALUE));
- RAMFC_WR(ACQUIRE_TIMESTAMP, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMESTAMP));
- RAMFC_WR(ACQUIRE_TIMEOUT, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMEOUT));
- RAMFC_WR(SEMAPHORE, NV_READ(NV_PFIFO_CACH1_SEMAPHORE));
- RAMFC_WR(DMA_SUBROUTINE, init->put_base);
-}
-
-static void nouveau_nv10_context_save(drm_device_t *dev)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- uint32_t fifoctx;
- int channel;
-
- channel = NV_READ(NV_PFIFO_CACH1_PSH1) & (nouveau_fifo_number(dev)-1);
- fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*64;
-
- RAMFC_WR(DMA_PUT , NV_READ(NV_PFIFO_CACH1_DMAP));
- RAMFC_WR(DMA_GET , NV_READ(NV_PFIFO_CACH1_DMAG));
- RAMFC_WR(REF_CNT , NV_READ(NV_PFIFO_CACH1_REF_CNT));
- RAMFC_WR(DMA_INSTANCE , NV_READ(NV_PFIFO_CACH1_DMAI));
- RAMFC_WR(DMA_STATE , NV_READ(NV_PFIFO_CACH1_DMAS));
- RAMFC_WR(DMA_FETCH , NV_READ(NV_PFIFO_CACH1_DMAF));
- RAMFC_WR(ENGINE , NV_READ(NV_PFIFO_CACH1_ENG));
- RAMFC_WR(PULL1_ENGINE , NV_READ(NV_PFIFO_CACH1_PUL1));
- RAMFC_WR(ACQUIRE_VALUE , NV_READ(NV_PFIFO_CACH1_ACQUIRE_VALUE));
- RAMFC_WR(ACQUIRE_TIMESTAMP, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMESTAMP));
- RAMFC_WR(ACQUIRE_TIMEOUT , NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMEOUT));
- RAMFC_WR(SEMAPHORE , NV_READ(NV_PFIFO_CACH1_SEMAPHORE));
- RAMFC_WR(DMA_SUBROUTINE , NV_READ(NV_PFIFO_CACH1_DMASR));
-}
-#undef RAMFC_WR
-
-#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV40_RAMFC_##offset, (val))
-static void nouveau_nv40_context_init(drm_device_t *dev,
- drm_nouveau_fifo_alloc_t *init)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- struct nouveau_fifo *chan = &dev_priv->fifos[init->channel];
- uint32_t fifoctx, cb_inst, grctx_inst;
- int i;
-
- cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
- grctx_inst = nouveau_chip_instance_get(dev, chan->ramin_grctx);
- fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel*128;
- for (i=0;i<128;i+=4)
- NV_WRITE(fifoctx + i, 0);
-
- /* Fill entries that are seen filled in dumps of nvidia driver just
- * after channel's is put into DMA mode
- */
- RAMFC_WR(DMA_PUT , init->put_base);
- RAMFC_WR(DMA_GET , init->put_base);
- RAMFC_WR(DMA_INSTANCE , cb_inst);
- RAMFC_WR(DMA_FETCH , NV_PFIFO_CACH1_DMAF_TRIG_128_BYTES |
- NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
- NV_PFIFO_CACH1_DMAF_MAX_REQS_8 |
-#ifdef __BIG_ENDIAN
- NV_PFIFO_CACH1_BIG_ENDIAN |
-#endif
- 0x30000000 /* no idea.. */);
- RAMFC_WR(DMA_SUBROUTINE, init->put_base);
- RAMFC_WR(GRCTX_INSTANCE, grctx_inst);
- RAMFC_WR(DMA_TIMESLICE , 0x0001FFFF);
-}
-
-static void nouveau_nv40_context_save(drm_device_t *dev)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- uint32_t fifoctx;
- int channel;
-
- channel = NV_READ(NV_PFIFO_CACH1_PSH1) & (nouveau_fifo_number(dev)-1);
- fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
-
- RAMFC_WR(DMA_PUT , NV_READ(NV_PFIFO_CACH1_DMAP));
- RAMFC_WR(DMA_GET , NV_READ(NV_PFIFO_CACH1_DMAG));
- RAMFC_WR(REF_CNT , NV_READ(NV_PFIFO_CACH1_REF_CNT));
- RAMFC_WR(DMA_INSTANCE , NV_READ(NV_PFIFO_CACH1_DMAI));
- RAMFC_WR(DMA_DCOUNT , NV_READ(NV_PFIFO_CACH1_DMA_DCOUNT));
- RAMFC_WR(DMA_STATE , NV_READ(NV_PFIFO_CACH1_DMAS));
- RAMFC_WR(DMA_FETCH , NV_READ(NV_PFIFO_CACH1_DMAF));
- RAMFC_WR(ENGINE , NV_READ(NV_PFIFO_CACH1_ENG));
- RAMFC_WR(PULL1_ENGINE , NV_READ(NV_PFIFO_CACH1_PUL1));
- RAMFC_WR(ACQUIRE_VALUE , NV_READ(NV_PFIFO_CACH1_ACQUIRE_VALUE));
- RAMFC_WR(ACQUIRE_TIMESTAMP, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMESTAMP));
- RAMFC_WR(ACQUIRE_TIMEOUT , NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMEOUT));
- RAMFC_WR(SEMAPHORE , NV_READ(NV_PFIFO_CACH1_SEMAPHORE));
- RAMFC_WR(DMA_SUBROUTINE , NV_READ(NV_PFIFO_CACH1_DMAG));
- RAMFC_WR(GRCTX_INSTANCE , NV_READ(NV40_PFIFO_GRCTX_INSTANCE));
- RAMFC_WR(DMA_TIMESLICE , NV_READ(NV_PFIFO_DMA_TIMESLICE) & 0x1FFFF);
- RAMFC_WR(UNK_40 , NV_READ(NV40_PFIFO_UNK32E4));
-}
-#undef RAMFC_WR
-
-/* This function should load values from RAMFC into PFIFO, but for now
- * it just clobbers PFIFO with what nouveau_fifo_alloc used to setup
- * unconditionally.
- */
-static void
-nouveau_fifo_context_restore(drm_device_t *dev, int channel)
-{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
- struct nouveau_fifo *chan = &dev_priv->fifos[channel];
- uint32_t cb_inst;
-
- cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
-
- // 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|channel);
- else
- NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00000100|channel);
-
- NV_WRITE(NV_PFIFO_CACH1_DMAP, 0 /*RAMFC_DMA_PUT*/);
- NV_WRITE(NV_PFIFO_CACH1_DMAG, 0 /*RAMFC_DMA_GET*/);
- NV_WRITE(NV_PFIFO_CACH1_DMAI, cb_inst);
- 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
-}
-
-/* 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;
- struct nouveau_object *cb_obj;
-
- /*
- * 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);
-
- /* allocate a command buffer, and create a dma object for the gpu */
- ret = nouveau_fifo_cmdbuf_alloc(dev, i);
- if (ret) return ret;
- cb_obj = dev_priv->fifos[i].cmdbuf_obj;
-
- /* that fifo is used */
- dev_priv->fifos[i].used=1;
- dev_priv->fifos[i].filp=filp;
-
- init->channel = i;
- init->put_base = 0;
- dev_priv->cur_fifo = init->channel;
- dev_priv->fifos[i].pgraph_ctx_user = i << 24;
-
- 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);
-
- /* Construct inital RAMFC for new channel */
- if (dev_priv->card_type < NV_10) {
- nouveau_nv04_context_init(dev, init);
- } else if (dev_priv->card_type < NV_40) {
- nouveau_nv10_context_init(dev, init);
- } else {
- ret = nv40_graph_context_create(dev, init->channel);
- if (ret) {
- nouveau_fifo_free(dev, init->channel);
- return ret;
- }
- nouveau_nv40_context_init(dev, init);
- }
-
- /* enable the fifo dma operation */
- NV_WRITE(NV_PFIFO_MODE,NV_READ(NV_PFIFO_MODE)|(1<<init->channel));
-
- /* setup channel's default get/put values */
- NV_WRITE(NV03_FIFO_REGS_DMAPUT(init->channel), init->put_base);
- NV_WRITE(NV03_FIFO_REGS_DMAGET(init->channel), init->put_base);
-
- /* If this is the first channel, setup PFIFO ourselves. For any
- * other case, the GPU will handle this when it switches contexts.
- */
- if (dev_priv->fifo_alloc_count == 0) {
- nouveau_fifo_context_restore(dev, init->channel);
- if (dev_priv->card_type >= NV_40) {
- struct nouveau_fifo *chan;
- uint32_t inst;
-
- chan = &dev_priv->fifos[init->channel];
- inst = nouveau_chip_instance_get(dev,
- chan->ramin_grctx);
-
- /* see comments in nv40_graph_context_restore() */
- NV_WRITE(0x400784, inst);
- NV_WRITE(0x40032C, inst | 0x01000000);
- NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE, inst);
- }
- }
-
- 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;
-
- /* pass back FIFO map info to the caller */
- init->cmdbuf = dev_priv->fifos[init->channel].cmdbuf_mem->start;
- init->cmdbuf_size = dev_priv->fifos[init->channel].cmdbuf_mem->size;
-
- /* FIFO has no objects yet */
- dev_priv->fifos[init->channel].objs = NULL;
- dev_priv->fifo_alloc_count++;
-
- 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;
- int i;
- int ctx_size = nouveau_fifo_ctx_size(dev);
-
- 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
-
- /* Clean RAMFC */
- for (i=0;i<ctx_size;i+=4) {
- DRM_DEBUG("RAMFC +%02x: 0x%08x\n", i, NV_READ(NV_RAMIN +
- dev_priv->ramfc_offset + n*ctx_size + i));
- NV_WRITE(NV_RAMIN + dev_priv->ramfc_offset + n*ctx_size + i, 0);
- }
-
- if (dev_priv->card_type >= NV_40)
- nouveau_instmem_free(dev, dev_priv->fifos[n].ramin_grctx);
-
- /* reenable the fifo caches */
- NV_WRITE(NV_PFIFO_CACHES, 0x00000001);
-
- /* Deallocate command buffer, and dma object */
- nouveau_mem_free(dev, dev_priv->fifos[n].cmdbuf_mem);
-
- dev_priv->fifo_alloc_count--;
-}
-
-/* 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].used && 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].used && 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);
-
-
+../shared-core/nouveau_fifo.c \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 04:03:13 +0000