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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c
new file mode 100644
index 000000000..77a41bcf8
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2015 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 "nv50.h"
+
+#include <subdev/timer.h>
+
+void
+g84_bar_flush(struct nvkm_bar *bar)
+{
+ struct nvkm_device *device = bar->subdev.device;
+ unsigned long flags;
+ spin_lock_irqsave(&bar->lock, flags);
+ nvkm_wr32(device, 0x070000, 0x00000001);
+ nvkm_msec(device, 2000,
+ if (!(nvkm_rd32(device, 0x070000) & 0x00000002))
+ break;
+ );
+ spin_unlock_irqrestore(&bar->lock, flags);
+}
+
+static const struct nvkm_bar_func
+g84_bar_func = {
+ .dtor = nv50_bar_dtor,
+ .oneinit = nv50_bar_oneinit,
+ .init = nv50_bar_init,
+ .bar1.init = nv50_bar_bar1_init,
+ .bar1.fini = nv50_bar_bar1_fini,
+ .bar1.wait = nv50_bar_bar1_wait,
+ .bar1.vmm = nv50_bar_bar1_vmm,
+ .bar2.init = nv50_bar_bar2_init,
+ .bar2.fini = nv50_bar_bar2_fini,
+ .bar2.wait = nv50_bar_bar1_wait,
+ .bar2.vmm = nv50_bar_bar2_vmm,
+ .flush = g84_bar_flush,
+};
+
+int
+g84_bar_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_bar **pbar)
+{
+ return nv50_bar_new_(&g84_bar_func, device, type, inst, 0x200, pbar);
+}