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path: root/drivers/gpu/drm/nouveau/nvc0_software.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_software.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvc0_software.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_software.c b/drivers/gpu/drm/nouveau/nvc0_software.c
new file mode 100644
index 000000000000..93e8c164fec6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvc0_software.c
@@ -0,0 +1,153 @@
+/*
+ * 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
+ */
+
+#include "drmP.h"
+
+#include "nouveau_drv.h"
+#include "nouveau_ramht.h"
+#include "nouveau_software.h"
+
+#include "nv50_display.h"
+
+struct nvc0_software_priv {
+ struct nouveau_software_priv base;
+};
+
+struct nvc0_software_chan {
+ struct nouveau_software_chan base;
+ struct nouveau_vma dispc_vma[4];
+};
+
+u64
+nvc0_software_crtc(struct nouveau_channel *chan, int crtc)
+{
+ struct nvc0_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW];
+ return pch->dispc_vma[crtc].offset;
+}
+
+static int
+nvc0_software_context_new(struct nouveau_channel *chan, int engine)
+{
+ struct drm_device *dev = chan->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nvc0_software_priv *psw = nv_engine(dev, NVOBJ_ENGINE_SW);
+ struct nvc0_software_chan *pch;
+ int ret = 0, i;
+
+ pch = kzalloc(sizeof(*pch), GFP_KERNEL);
+ if (!pch)
+ return -ENOMEM;
+
+ nouveau_software_context_new(&pch->base);
+ chan->engctx[engine] = pch;
+
+ /* map display semaphore buffers into channel's vm */
+ for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) {
+ struct nouveau_bo *bo;
+ if (dev_priv->card_type >= NV_D0)
+ bo = nvd0_display_crtc_sema(dev, i);
+ else
+ bo = nv50_display(dev)->crtc[i].sem.bo;
+
+ ret = nouveau_bo_vma_add(bo, chan->vm, &pch->dispc_vma[i]);
+ }
+
+ if (ret)
+ psw->base.base.context_del(chan, engine);
+ return ret;
+}
+
+static void
+nvc0_software_context_del(struct nouveau_channel *chan, int engine)
+{
+ struct drm_device *dev = chan->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nvc0_software_chan *pch = chan->engctx[engine];
+ int i;
+
+ if (dev_priv->card_type >= NV_D0) {
+ for (i = 0; i < dev->mode_config.num_crtc; i++) {
+ struct nouveau_bo *bo = nvd0_display_crtc_sema(dev, i);
+ nouveau_bo_vma_del(bo, &pch->dispc_vma[i]);
+ }
+ } else
+ if (dev_priv->card_type >= NV_50) {
+ struct nv50_display *disp = nv50_display(dev);
+ for (i = 0; i < dev->mode_config.num_crtc; i++) {
+ struct nv50_display_crtc *dispc = &disp->crtc[i];
+ nouveau_bo_vma_del(dispc->sem.bo, &pch->dispc_vma[i]);
+ }
+ }
+
+ chan->engctx[engine] = NULL;
+ kfree(pch);
+}
+
+static int
+nvc0_software_object_new(struct nouveau_channel *chan, int engine,
+ u32 handle, u16 class)
+{
+ return 0;
+}
+
+static int
+nvc0_software_init(struct drm_device *dev, int engine)
+{
+ return 0;
+}
+
+static int
+nvc0_software_fini(struct drm_device *dev, int engine, bool suspend)
+{
+ return 0;
+}
+
+static void
+nvc0_software_destroy(struct drm_device *dev, int engine)
+{
+ struct nvc0_software_priv *psw = nv_engine(dev, engine);
+
+ NVOBJ_ENGINE_DEL(dev, SW);
+ kfree(psw);
+}
+
+int
+nvc0_software_create(struct drm_device *dev)
+{
+ struct nvc0_software_priv *psw = kzalloc(sizeof(*psw), GFP_KERNEL);
+ if (!psw)
+ return -ENOMEM;
+
+ psw->base.base.destroy = nvc0_software_destroy;
+ psw->base.base.init = nvc0_software_init;
+ psw->base.base.fini = nvc0_software_fini;
+ psw->base.base.context_new = nvc0_software_context_new;
+ psw->base.base.context_del = nvc0_software_context_del;
+ psw->base.base.object_new = nvc0_software_object_new;
+ nouveau_software_create(&psw->base);
+
+ NVOBJ_ENGINE_ADD(dev, SW, &psw->base.base);
+ NVOBJ_CLASS(dev, 0x906e, SW);
+ return 0;
+}