nouveau: install libdrm_nouveau with libdrm

1 files changed, 276 insertions, 0 deletions

diff --git a/libdrm/nouveau/nouveau_pushbuf.c b/libdrm/nouveau/nouveau_pushbuf.c
new file mode 100644
index 00000000..5b8d18b9
--- /dev/null
+++ b/libdrm/nouveau/nouveau_pushbuf.c
@@ -0,0 +1,276 @@
+/*
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "nouveau_private.h"
+#include "nouveau_dma.h"
+
+#define PB_BUFMGR_DWORDS   (4096 / 2)
+#define PB_MIN_USER_DWORDS  2048
+
+static uint32_t
+nouveau_pushbuf_calc_reloc(struct drm_nouveau_gem_pushbuf_bo *pbbo,
+			   struct drm_nouveau_gem_pushbuf_reloc *r,
+			   int mm_enabled)
+{
+	uint32_t push = 0;
+	const unsigned is_vram = mm_enabled ? NOUVEAU_GEM_DOMAIN_VRAM :
+					      NOUVEAU_BO_VRAM;
+
+	if (r->flags & NOUVEAU_GEM_RELOC_LOW)
+		push = (pbbo->presumed_offset + r->data);
+	else
+	if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
+		push = (pbbo->presumed_offset + r->data) >> 32;
+	else
+		push = r->data;
+
+	if (r->flags & NOUVEAU_GEM_RELOC_OR) {
+		if (pbbo->presumed_domain & is_vram)
+			push |= r->vor;
+		else
+			push |= r->tor;
+	}
+
+	return push;
+}
+
+int
+nouveau_pushbuf_emit_reloc(struct nouveau_channel *chan, void *ptr,
+			   struct nouveau_bo *bo, uint32_t data, uint32_t flags,
+			   uint32_t vor, uint32_t tor)
+{
+	struct nouveau_device_priv *nvdev = nouveau_device(chan->device);
+	struct nouveau_pushbuf_priv *nvpb = nouveau_pushbuf(chan->pushbuf);
+	struct drm_nouveau_gem_pushbuf_reloc *r;
+	struct drm_nouveau_gem_pushbuf_bo *pbbo;
+	uint32_t domains = 0;
+
+	if (nvpb->nr_relocs >= NOUVEAU_PUSHBUF_MAX_RELOCS)
+		return -ENOMEM;
+
+	if (nouveau_bo(bo)->user && (flags & NOUVEAU_BO_WR)) {
+		fprintf(stderr, "write to user buffer!!\n");
+		return -EINVAL;
+	}
+
+	pbbo = nouveau_bo_emit_buffer(chan, bo);
+	if (!pbbo)
+		return -ENOMEM;
+
+	if (flags & NOUVEAU_BO_VRAM)
+		domains |= NOUVEAU_GEM_DOMAIN_VRAM;
+	if (flags & NOUVEAU_BO_GART)
+		domains |= NOUVEAU_GEM_DOMAIN_GART;
+	pbbo->valid_domains &= domains;
+	assert(pbbo->valid_domains);
+
+	if (!nvdev->mm_enabled) {
+		struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
+
+		nouveau_fence_ref(nvpb->fence, &nvbo->fence);
+		if (flags & NOUVEAU_BO_WR)
+			nouveau_fence_ref(nvpb->fence, &nvbo->wr_fence);
+	}
+
+	assert(flags & NOUVEAU_BO_RDWR);
+	if (flags & NOUVEAU_BO_RD) {
+		pbbo->read_domains |= domains;
+	}
+	if (flags & NOUVEAU_BO_WR) {
+		pbbo->write_domains |= domains;
+		nouveau_bo(bo)->write_marker = 1;
+	}
+
+	r = nvpb->relocs + nvpb->nr_relocs++;
+	r->bo_index = pbbo - nvpb->buffers;
+	r->reloc_index = (uint32_t *)ptr - nvpb->pushbuf;
+	r->flags = 0;
+	if (flags & NOUVEAU_BO_LOW)
+		r->flags |= NOUVEAU_GEM_RELOC_LOW;
+	if (flags & NOUVEAU_BO_HIGH)
+		r->flags |= NOUVEAU_GEM_RELOC_HIGH;
+	if (flags & NOUVEAU_BO_OR)
+		r->flags |= NOUVEAU_GEM_RELOC_OR;
+	r->data = data;
+	r->vor = vor;
+	r->tor = tor;
+
+	*(uint32_t *)ptr = (flags & NOUVEAU_BO_DUMMY) ? 0 :
+		nouveau_pushbuf_calc_reloc(pbbo, r, nvdev->mm_enabled);
+	return 0;
+}
+
+static int
+nouveau_pushbuf_space(struct nouveau_channel *chan, unsigned min)
+{
+	struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
+	struct nouveau_pushbuf_priv *nvpb = &nvchan->pb;
+
+	if (nvpb->pushbuf) {
+		free(nvpb->pushbuf);
+		nvpb->pushbuf = NULL;
+	}
+
+	nvpb->size = min < PB_MIN_USER_DWORDS ? PB_MIN_USER_DWORDS : min;	
+	nvpb->pushbuf = malloc(sizeof(uint32_t) * nvpb->size);
+
+	nvpb->base.channel = chan;
+	nvpb->base.remaining = nvpb->size;
+	nvpb->base.cur = nvpb->pushbuf;
+	
+	if (!nouveau_device(chan->device)->mm_enabled) {
+		nouveau_fence_ref(NULL, &nvpb->fence);
+		nouveau_fence_new(chan, &nvpb->fence);
+	}
+
+	return 0;
+}
+
+int
+nouveau_pushbuf_init(struct nouveau_channel *chan)
+{
+	struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
+	struct nouveau_pushbuf_priv *nvpb = &nvchan->pb;
+
+	nouveau_pushbuf_space(chan, 0);
+
+	nvpb->buffers = calloc(NOUVEAU_PUSHBUF_MAX_BUFFERS,
+			       sizeof(struct drm_nouveau_gem_pushbuf_bo));
+	nvpb->relocs = calloc(NOUVEAU_PUSHBUF_MAX_RELOCS,
+			      sizeof(struct drm_nouveau_gem_pushbuf_reloc));
+	
+	chan->pushbuf = &nvpb->base;
+	return 0;
+}
+
+static int
+nouveau_pushbuf_flush_nomm(struct nouveau_channel_priv *nvchan)
+{
+	struct nouveau_pushbuf_priv *nvpb = &nvchan->pb;
+	struct drm_nouveau_gem_pushbuf_bo *bo = nvpb->buffers;
+	struct drm_nouveau_gem_pushbuf_reloc *reloc = nvpb->relocs;
+	unsigned b, r;
+	int ret;
+
+	for (b = 0; b < nvpb->nr_buffers; b++) {
+		struct nouveau_bo_priv *nvbo =
+			(void *)(unsigned long)bo[b].user_priv;
+		uint32_t flags = 0;
+
+		if (bo[b].valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
+			flags |= NOUVEAU_BO_VRAM;
+		if (bo[b].valid_domains & NOUVEAU_GEM_DOMAIN_GART)
+			flags |= NOUVEAU_BO_GART;
+
+		ret = nouveau_bo_validate_nomm(nvbo, flags);
+		if (ret)
+			return ret;
+
+		if (1 || bo[b].presumed_domain != nvbo->domain ||
+		    bo[b].presumed_offset != nvbo->offset) {
+			bo[b].presumed_ok = 0;
+			bo[b].presumed_domain = nvbo->domain;
+			bo[b].presumed_offset = nvbo->offset;
+		}
+	}
+
+	for (r = 0; r < nvpb->nr_relocs; r++, reloc++) {
+		uint32_t push;
+
+		if (bo[reloc->bo_index].presumed_ok)
+			continue;
+
+		push = nouveau_pushbuf_calc_reloc(&bo[reloc->bo_index], reloc, 0);
+		nvpb->pushbuf[reloc->reloc_index] = push;
+	}
+
+	nouveau_dma_space(&nvchan->base, nvpb->size);
+	nouveau_dma_outp (&nvchan->base, nvpb->pushbuf, nvpb->size);
+	nouveau_fence_emit(nvpb->fence);
+
+	return 0;
+}
+
+int
+nouveau_pushbuf_flush(struct nouveau_channel *chan, unsigned min)
+{
+	struct nouveau_device_priv *nvdev = nouveau_device(chan->device);
+	struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
+	struct nouveau_pushbuf_priv *nvpb = &nvchan->pb;
+	struct drm_nouveau_gem_pushbuf req;
+	unsigned i;
+	int ret;
+
+	if (nvpb->base.remaining == nvpb->size)
+		return 0;
+	nvpb->size -= nvpb->base.remaining;
+
+	if (nvdev->mm_enabled) {
+		req.channel = chan->id;
+		req.nr_dwords = nvpb->size;
+		req.dwords = (uint64_t)(unsigned long)nvpb->pushbuf;
+		req.nr_buffers = nvpb->nr_buffers;
+		req.buffers = (uint64_t)(unsigned long)nvpb->buffers;
+		req.nr_relocs = nvpb->nr_relocs;
+		req.relocs = (uint64_t)(unsigned long)nvpb->relocs;
+		ret = drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GEM_PUSHBUF,
+				      &req, sizeof(req));
+	} else {
+		nouveau_fence_flush(chan);
+		ret = nouveau_pushbuf_flush_nomm(nvchan);
+	}
+	assert(ret == 0);
+
+
+	/* Update presumed offset/domain for any buffers that moved.
+	 * Dereference all buffers on validate list
+	 */
+	for (i = 0; i < nvpb->nr_buffers; i++) {
+		struct drm_nouveau_gem_pushbuf_bo *pbbo = &nvpb->buffers[i];
+		struct nouveau_bo *bo = (void *)(unsigned long)pbbo->user_priv;
+
+		if (pbbo->presumed_ok == 0) {
+			nouveau_bo(bo)->domain = pbbo->presumed_domain;
+			nouveau_bo(bo)->offset = pbbo->presumed_offset;
+		}
+
+		nouveau_bo(bo)->pending = NULL;
+		nouveau_bo_ref(NULL, &bo);
+	}
+	nvpb->nr_buffers = 0;
+	nvpb->nr_relocs = 0;
+
+	/* Allocate space for next push buffer */
+	ret = nouveau_pushbuf_space(chan, min);
+	assert(!ret);
+
+	if (chan->flush_notify)
+		chan->flush_notify(chan);
+
+	return 0;
+}
+