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authorIan Romanick <idr@us.ibm.com>2007-07-12 15:28:17 -0700
committerIan Romanick <idr@us.ibm.com>2007-07-12 15:28:17 -0700
commit5522136b7f01402ae02cbe35180e3d80f850a6b3 (patch)
tree275da77af4df8b332f17cb503a4b58b608de8620 /shared-core/nv04_fifo.c
parent76ca1e858fb8e1a65ea49c0c62350d7ca91044a2 (diff)
parent851c950d988e5a47fa6add71427e5ef8d4dcf231 (diff)
Merge branch 'master' into xgi-0-0-2
Diffstat (limited to 'shared-core/nv04_fifo.c')
-rw-r--r--shared-core/nv04_fifo.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/shared-core/nv04_fifo.c b/shared-core/nv04_fifo.c
new file mode 100644
index 00000000..e2e934d7
--- /dev/null
+++ b/shared-core/nv04_fifo.c
@@ -0,0 +1,130 @@
+/*
+ * 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"
+
+#define RAMFC_WR(offset,val) INSTANCE_WR(chan->ramfc->gpuobj, \
+ NV04_RAMFC_##offset/4, (val))
+#define RAMFC_RD(offset) INSTANCE_RD(chan->ramfc->gpuobj, \
+ NV04_RAMFC_##offset/4)
+#define NV04_RAMFC(c) (dev_priv->ramfc_offset + ((c) * NV04_RAMFC__SIZE))
+#define NV04_RAMFC__SIZE 32
+
+int
+nv04_fifo_create_context(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ struct nouveau_fifo *chan = dev_priv->fifos[channel];
+ int ret;
+
+ if ((ret = nouveau_gpuobj_new_fake(dev, NV04_RAMFC(channel),
+ NV04_RAMFC__SIZE,
+ NVOBJ_FLAG_ZERO_ALLOC |
+ NVOBJ_FLAG_ZERO_FREE,
+ NULL, &chan->ramfc)))
+ return ret;
+
+ /* Setup initial state */
+ RAMFC_WR(DMA_PUT, chan->pushbuf_base);
+ RAMFC_WR(DMA_GET, chan->pushbuf_base);
+ RAMFC_WR(DMA_INSTANCE, chan->pushbuf->instance >> 4);
+ RAMFC_WR(DMA_FETCH, (NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
+ NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
+ NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
+#ifdef __BIG_ENDIAN
+ NV_PFIFO_CACHE1_BIG_ENDIAN |
+#endif
+ 0));
+
+ /* enable the fifo dma operation */
+ NV_WRITE(NV04_PFIFO_MODE,NV_READ(NV04_PFIFO_MODE)|(1<<channel));
+ return 0;
+}
+
+void
+nv04_fifo_destroy_context(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ struct nouveau_fifo *chan = dev_priv->fifos[channel];
+
+ NV_WRITE(NV04_PFIFO_MODE, NV_READ(NV04_PFIFO_MODE)&~(1<<channel));
+
+ if (chan->ramfc)
+ nouveau_gpuobj_ref_del(dev, &chan->ramfc);
+}
+
+int
+nv04_fifo_load_context(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 tmp;
+
+ NV_WRITE(NV03_PFIFO_CACHE1_PUSH1, (1<<8) | channel);
+
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET, RAMFC_RD(DMA_GET));
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT, RAMFC_RD(DMA_PUT));
+
+ tmp = RAMFC_RD(DMA_INSTANCE);
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_INSTANCE, tmp & 0xFFFF);
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_DCOUNT, tmp >> 16);
+
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE, RAMFC_RD(DMA_STATE));
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_FETCH, RAMFC_RD(DMA_FETCH));
+ NV_WRITE(NV04_PFIFO_CACHE1_ENGINE, RAMFC_RD(ENGINE));
+ NV_WRITE(NV04_PFIFO_CACHE1_PULL1, RAMFC_RD(PULL1_ENGINE));
+
+ /* Reset NV04_PFIFO_CACHE1_DMA_CTL_AT_INFO to INVALID */
+ tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_CTL) & ~(1<<31);
+ NV_WRITE(NV04_PFIFO_CACHE1_DMA_CTL, tmp);
+
+ return 0;
+}
+
+int
+nv04_fifo_save_context(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 tmp;
+
+ RAMFC_WR(DMA_PUT, NV04_PFIFO_CACHE1_DMA_PUT);
+ RAMFC_WR(DMA_GET, NV04_PFIFO_CACHE1_DMA_GET);
+
+ tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_DCOUNT) << 16;
+ tmp |= NV_READ(NV04_PFIFO_CACHE1_DMA_INSTANCE);
+ RAMFC_WR(DMA_INSTANCE, tmp);
+
+ RAMFC_WR(DMA_STATE, NV_READ(NV04_PFIFO_CACHE1_DMA_STATE));
+ RAMFC_WR(DMA_FETCH, NV_READ(NV04_PFIFO_CACHE1_DMA_FETCH));
+ RAMFC_WR(ENGINE, NV_READ(NV04_PFIFO_CACHE1_ENGINE));
+ RAMFC_WR(PULL1_ENGINE, NV_READ(NV04_PFIFO_CACHE1_PULL1));
+
+ return 0;
+}
+