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path: root/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c
new file mode 100644
index 000000000000..876b14549a58
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c
@@ -0,0 +1,100 @@
+/*
+ * 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 "dmacnv50.h"
+#include "rootnv50.h"
+
+#include <core/ramht.h>
+#include <subdev/timer.h>
+
+int
+gf119_disp_dmac_bind(struct nv50_disp_dmac *chan,
+ struct nvkm_object *object, u32 handle)
+{
+ return nvkm_ramht_insert(chan->base.root->ramht, object,
+ chan->base.chid, -9, handle,
+ chan->base.chid << 27 | 0x00000001);
+}
+
+static void
+gf119_disp_dmac_fini(struct nv50_disp_dmac *chan)
+{
+ struct nv50_disp *disp = chan->base.root->disp;
+ struct nvkm_subdev *subdev = &disp->base.engine.subdev;
+ struct nvkm_device *device = subdev->device;
+ int chid = chan->base.chid;
+
+ /* deactivate channel */
+ nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00001010, 0x00001000);
+ nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000003, 0x00000000);
+ if (nvkm_msec(device, 2000,
+ if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x001e0000))
+ break;
+ ) < 0) {
+ nvkm_error(subdev, "ch %d fini: %08x\n", chid,
+ nvkm_rd32(device, 0x610490 + (chid * 0x10)));
+ }
+
+ /* disable error reporting and completion notification */
+ nvkm_mask(device, 0x610090, 0x00000001 << chid, 0x00000000);
+ nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000000);
+}
+
+static int
+gf119_disp_dmac_init(struct nv50_disp_dmac *chan)
+{
+ struct nv50_disp *disp = chan->base.root->disp;
+ struct nvkm_subdev *subdev = &disp->base.engine.subdev;
+ struct nvkm_device *device = subdev->device;
+ int chid = chan->base.chid;
+
+ /* enable error reporting */
+ nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000001 << chid);
+
+ /* initialise channel for dma command submission */
+ nvkm_wr32(device, 0x610494 + (chid * 0x0010), chan->push);
+ nvkm_wr32(device, 0x610498 + (chid * 0x0010), 0x00010000);
+ nvkm_wr32(device, 0x61049c + (chid * 0x0010), 0x00000001);
+ nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000010, 0x00000010);
+ nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
+ nvkm_wr32(device, 0x610490 + (chid * 0x0010), 0x00000013);
+
+ /* wait for it to go inactive */
+ if (nvkm_msec(device, 2000,
+ if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x80000000))
+ break;
+ ) < 0) {
+ nvkm_error(subdev, "ch %d init: %08x\n", chid,
+ nvkm_rd32(device, 0x610490 + (chid * 0x10)));
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+const struct nv50_disp_dmac_func
+gf119_disp_dmac_func = {
+ .init = gf119_disp_dmac_init,
+ .fini = gf119_disp_dmac_fini,
+ .bind = gf119_disp_dmac_bind,
+};