1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c
new file mode 100644
index 000000000..18241c6ba
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2013 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 "ram.h"
+
+int
+nv1a_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
+{
+	struct pci_dev *bridge;
+	u32 mem, mib;
+	int domain = 0;
+	struct pci_dev *pdev = NULL;
+
+	if (dev_is_pci(fb->subdev.device->dev))
+		pdev = to_pci_dev(fb->subdev.device->dev);
+
+	if (pdev)
+		domain = pci_domain_nr(pdev->bus);
+
+	bridge = pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 1));
+	if (!bridge) {
+		nvkm_error(&fb->subdev, "no bridge device\n");
+		return -ENODEV;
+	}
+
+	if (fb->subdev.device->chipset == 0x1a) {
+		pci_read_config_dword(bridge, 0x7c, &mem);
+		mib = ((mem >> 6) & 31) + 1;
+	} else {
+		pci_read_config_dword(bridge, 0x84, &mem);
+		mib = ((mem >> 4) & 127) + 1;
+	}
+
+	return nvkm_ram_new_(&nv04_ram_func, fb, NVKM_RAM_TYPE_STOLEN,
+			     mib * 1024 * 1024, pram);
+}