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Diffstat (limited to 'libdrm/nouveau/nouveau_dma.c')
-rw-r--r--libdrm/nouveau/nouveau_dma.c217
1 files changed, 0 insertions, 217 deletions
diff --git a/libdrm/nouveau/nouveau_dma.c b/libdrm/nouveau/nouveau_dma.c
deleted file mode 100644
index b084f706..00000000
--- a/libdrm/nouveau/nouveau_dma.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * Copyright 2007 Nouveau Project
- *
- * 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 AUTHORS 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 <stdint.h>
-#include <stdio.h>
-#include <assert.h>
-#include <errno.h>
-
-#include "nouveau_drmif.h"
-#include "nouveau_dma.h"
-
-static inline uint32_t
-READ_GET(struct nouveau_channel_priv *nvchan)
-{
- return *nvchan->get;
-}
-
-static inline void
-WRITE_PUT(struct nouveau_channel_priv *nvchan, uint32_t val)
-{
- uint32_t put = ((val << 2) + nvchan->dma->base);
- volatile int dum;
-
- NOUVEAU_DMA_BARRIER;
- dum = nvchan->pushbuf[0];
- dum = READ_GET(nvchan);
-
- *nvchan->put = put;
- nvchan->dma->put = val;
-#ifdef NOUVEAU_DMA_TRACE
- printf("WRITE_PUT %d/0x%08x\n", nvchan->drm.channel, put);
-#endif
-
- NOUVEAU_DMA_BARRIER;
-}
-
-static inline int
-LOCAL_GET(struct nouveau_dma_priv *dma, uint32_t *val)
-{
- uint32_t get = *val;
-
- if (get >= dma->base && get <= (dma->base + (dma->max << 2))) {
- *val = (get - dma->base) >> 2;
- return 1;
- }
-
- return 0;
-}
-
-void
-nouveau_dma_channel_init(struct nouveau_channel *chan)
-{
- struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
- int i;
-
- nvchan->dma = &nvchan->struct_dma;
- nvchan->dma->base = nvchan->drm.put_base;
- nvchan->dma->cur = nvchan->dma->put = 0;
- nvchan->dma->max = (nvchan->drm.cmdbuf_size >> 2) - 2;
- nvchan->dma->free = nvchan->dma->max - nvchan->dma->cur;
-
- RING_SPACE_CH(chan, RING_SKIPS);
- for (i = 0; i < RING_SKIPS; i++)
- OUT_RING_CH(chan, 0);
-}
-
-#define CHECK_TIMEOUT() do { \
- if ((NOUVEAU_TIME_MSEC() - t_start) > NOUVEAU_DMA_TIMEOUT) \
- return - EBUSY; \
-} while(0)
-
-int
-nouveau_dma_wait(struct nouveau_channel *chan, unsigned size)
-{
- struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
- struct nouveau_dma_priv *dma = nvchan->dma;
- uint32_t get, t_start;
-
- FIRE_RING_CH(chan);
-
- t_start = NOUVEAU_TIME_MSEC();
- while (dma->free < size) {
- CHECK_TIMEOUT();
-
- get = READ_GET(nvchan);
- if (!LOCAL_GET(dma, &get))
- continue;
-
- if (dma->put >= get) {
- dma->free = dma->max - dma->cur;
-
- if (dma->free < size) {
-#ifdef NOUVEAU_DMA_DEBUG
- dma->push_free = 1;
-#endif
- OUT_RING_CH(chan, 0x20000000 | dma->base);
- if (get <= RING_SKIPS) {
- /*corner case - will be idle*/
- if (dma->put <= RING_SKIPS)
- WRITE_PUT(nvchan,
- RING_SKIPS + 1);
-
- do {
- CHECK_TIMEOUT();
- get = READ_GET(nvchan);
- if (!LOCAL_GET(dma, &get))
- get = 0;
- } while (get <= RING_SKIPS);
- }
-
- WRITE_PUT(nvchan, RING_SKIPS);
- dma->cur = dma->put = RING_SKIPS;
- dma->free = get - (RING_SKIPS + 1);
- }
- } else {
- dma->free = get - dma->cur - 1;
- }
- }
-
- return 0;
-}
-
-#ifdef NOUVEAU_DMA_DUMP_POSTRELOC_PUSHBUF
-static void
-nouveau_dma_parse_pushbuf(struct nouveau_channel *chan, int get, int put)
-{
- struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
- unsigned mthd_count = 0;
-
- while (get != put) {
- uint32_t gpuget = (get << 2) + nvchan->drm.put_base;
- uint32_t data;
-
- if (get < 0 || get >= nvchan->drm.cmdbuf_size)
- assert(0);
- data = nvchan->pushbuf[get++];
-
- if (mthd_count) {
- printf("0x%08x 0x%08x\n", gpuget, data);
- mthd_count--;
- continue;
- }
-
- switch (data & 0x60000000) {
- case 0x00000000:
- mthd_count = (data >> 18) & 0x7ff;
- printf("0x%08x 0x%08x MTHD "
- "Sc %d Mthd 0x%04x Size %d\n",
- gpuget, data, (data>>13) & 7, data & 0x1ffc,
- mthd_count);
- break;
- case 0x20000000:
- get = (data & 0x1ffffffc) >> 2;
- printf("0x%08x 0x%08x JUMP 0x%08x\n",
- gpuget, data, data & 0x1ffffffc);
- continue;
- case 0x40000000:
- mthd_count = (data >> 18) & 0x7ff;
- printf("0x%08x 0x%08x NINC "
- "Sc %d Mthd 0x%04x Size %d\n",
- gpuget, data, (data>>13) & 7, data & 0x1ffc,
- mthd_count);
- break;
- case 0x60000000:
- /* DMA_OPCODE_CALL apparently, doesn't seem to work on
- * my NV40 at least..
- */
- /* fall-through */
- default:
- printf("DMA_PUSHER 0x%08x 0x%08x\n", gpuget, data);
- assert(0);
- }
- }
-}
-#endif
-
-void
-nouveau_dma_kickoff(struct nouveau_channel *chan)
-{
- struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
- struct nouveau_dma_priv *dma = nvchan->dma;
-
- if (dma->cur == dma->put)
- return;
-
-#ifdef NOUVEAU_DMA_DEBUG
- if (dma->push_free) {
- printf("Packet incomplete: %d left\n", dma->push_free);
- return;
- }
-#endif
-
-#ifdef NOUVEAU_DMA_DUMP_POSTRELOC_PUSHBUF
- nouveau_dma_parse_pushbuf(chan, dma->put, dma->cur);
-#endif
-
- WRITE_PUT(nvchan, dma->cur);
-}
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