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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nv50_fence.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_fence.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_fence.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_fence.c b/drivers/gpu/drm/nouveau/nv50_fence.c
new file mode 100644
index 000000000..ea1e1f480
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv50_fence.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+
+#include <nvif/os.h>
+#include <nvif/class.h>
+#include <nvif/cl0002.h>
+
+#include "nouveau_drv.h"
+#include "nouveau_dma.h"
+#include "nv10_fence.h"
+
+#include "nv50_display.h"
+
+static int
+nv50_fence_context_new(struct nouveau_channel *chan)
+{
+ struct nv10_fence_priv *priv = chan->drm->fence;
+ struct nv10_fence_chan *fctx;
+ struct ttm_resource *reg = priv->bo->bo.resource;
+ u32 start = reg->start * PAGE_SIZE;
+ u32 limit = start + priv->bo->bo.base.size - 1;
+ int ret;
+
+ fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
+ if (!fctx)
+ return -ENOMEM;
+
+ nouveau_fence_context_new(chan, &fctx->base);
+ fctx->base.emit = nv10_fence_emit;
+ fctx->base.read = nv10_fence_read;
+ fctx->base.sync = nv17_fence_sync;
+
+ ret = nvif_object_ctor(&chan->user, "fenceCtxDma", NvSema,
+ NV_DMA_IN_MEMORY,
+ &(struct nv_dma_v0) {
+ .target = NV_DMA_V0_TARGET_VRAM,
+ .access = NV_DMA_V0_ACCESS_RDWR,
+ .start = start,
+ .limit = limit,
+ }, sizeof(struct nv_dma_v0),
+ &fctx->sema);
+ if (ret)
+ nv10_fence_context_del(chan);
+ return ret;
+}
+
+int
+nv50_fence_create(struct nouveau_drm *drm)
+{
+ struct nv10_fence_priv *priv;
+ int ret = 0;
+
+ priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->base.dtor = nv10_fence_destroy;
+ priv->base.resume = nv17_fence_resume;
+ priv->base.context_new = nv50_fence_context_new;
+ priv->base.context_del = nv10_fence_context_del;
+ spin_lock_init(&priv->lock);
+
+ ret = nouveau_bo_new(&drm->client, 4096, 0x1000,
+ NOUVEAU_GEM_DOMAIN_VRAM,
+ 0, 0x0000, NULL, NULL, &priv->bo);
+ if (!ret) {
+ ret = nouveau_bo_pin(priv->bo, NOUVEAU_GEM_DOMAIN_VRAM, false);
+ if (!ret) {
+ ret = nouveau_bo_map(priv->bo);
+ if (ret)
+ nouveau_bo_unpin(priv->bo);
+ }
+ if (ret)
+ nouveau_bo_ref(NULL, &priv->bo);
+ }
+
+ if (ret) {
+ nv10_fence_destroy(drm);
+ return ret;
+ }
+
+ nouveau_bo_wr32(priv->bo, 0x000, 0x00000000);
+ return ret;
+}