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authorBen Skeggs <bskeggs@redhat.com>2014-03-04 10:57:50 (GMT)
committerBen Skeggs <bskeggs@redhat.com>2014-03-26 04:08:14 (GMT)
commitbd3cac7bb02e0edf1f4bfc224c039e3da178d093 (patch)
tree658a875977ff80c71990d741c70ba92f8960b245
parent085969e6fb219b472b8cc8b0d84183a6184452e8 (diff)
downloadlinux-bd3cac7bb02e0edf1f4bfc224c039e3da178d093.tar.xz
drm/nouveau/bios: parsing of some random table needed to bring up gr
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
-rw-r--r--drivers/gpu/drm/nouveau/Makefile1
-rw-r--r--drivers/gpu/drm/nouveau/core/include/subdev/bios/P0260.h23
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/bios/P0260.c109
3 files changed, 133 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 4c5a61e..4625f70 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -48,6 +48,7 @@ nouveau-y += core/subdev/bios/therm.o
nouveau-y += core/subdev/bios/vmap.o
nouveau-y += core/subdev/bios/volt.o
nouveau-y += core/subdev/bios/xpio.o
+nouveau-y += core/subdev/bios/P0260.o
nouveau-y += core/subdev/bus/hwsq.o
nouveau-y += core/subdev/bus/nv04.o
nouveau-y += core/subdev/bus/nv31.o
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/P0260.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/P0260.h
new file mode 100644
index 0000000..bba01ab
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/P0260.h
@@ -0,0 +1,23 @@
+#ifndef __NVBIOS_P0260_H__
+#define __NVBIOS_P0260_H__
+
+u32 nvbios_P0260Te(struct nouveau_bios *,
+ u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *xnr, u8 *xsz);
+
+struct nvbios_P0260E {
+ u32 data;
+};
+
+u32 nvbios_P0260Ee(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr);
+u32 nvbios_P0260Ep(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr,
+ struct nvbios_P0260E *);
+
+struct nvbios_P0260X {
+ u32 data;
+};
+
+u32 nvbios_P0260Xe(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr);
+u32 nvbios_P0260Xp(struct nouveau_bios *, int idx, u8 *ver, u8 *hdr,
+ struct nvbios_P0260X *);
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/P0260.c b/drivers/gpu/drm/nouveau/core/subdev/bios/P0260.c
new file mode 100644
index 0000000..199f4e5
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/P0260.c
@@ -0,0 +1,109 @@
+/*
+ * 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 <subdev/bios.h>
+#include <subdev/bios/bit.h>
+#include <subdev/bios/ramcfg.h>
+#include <subdev/bios/P0260.h>
+
+u32
+nvbios_P0260Te(struct nouveau_bios *bios,
+ u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *xnr, u8 *xsz)
+{
+ struct bit_entry bit_P;
+ u32 data = 0x00000000;
+
+ if (!bit_entry(bios, 'P', &bit_P)) {
+ if (bit_P.version == 2 && bit_P.length > 0x63)
+ data = nv_ro32(bios, bit_P.offset + 0x60);
+ if (data) {
+ *ver = nv_ro08(bios, data + 0);
+ switch (*ver) {
+ case 0x10:
+ *hdr = nv_ro08(bios, data + 1);
+ *cnt = nv_ro08(bios, data + 2);
+ *len = 4;
+ *xnr = nv_ro08(bios, data + 3);
+ *xsz = 4;
+ return data;
+ default:
+ break;
+ }
+ }
+ }
+
+ return 0x00000000;
+}
+
+u32
+nvbios_P0260Ee(struct nouveau_bios *bios, int idx, u8 *ver, u8 *len)
+{
+ u8 hdr, cnt, xnr, xsz;
+ u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, len, &xnr, &xsz);
+ if (data && idx < cnt)
+ return data + hdr + (idx * *len);
+ return 0x00000000;
+}
+
+u32
+nvbios_P0260Ep(struct nouveau_bios *bios, int idx, u8 *ver, u8 *len,
+ struct nvbios_P0260E *info)
+{
+ u32 data = nvbios_P0260Ee(bios, idx, ver, len);
+ memset(info, 0x00, sizeof(*info));
+ switch (!!data * *ver) {
+ case 0x10:
+ info->data = nv_ro32(bios, data);
+ return data;
+ default:
+ break;
+ }
+ return 0x00000000;
+}
+
+u32
+nvbios_P0260Xe(struct nouveau_bios *bios, int idx, u8 *ver, u8 *xsz)
+{
+ u8 hdr, cnt, len, xnr;
+ u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, &len, &xnr, xsz);
+ if (data && idx < xnr)
+ return data + hdr + (cnt * len) + (idx * *xsz);
+ return 0x00000000;
+}
+
+u32
+nvbios_P0260Xp(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr,
+ struct nvbios_P0260X *info)
+{
+ u32 data = nvbios_P0260Xe(bios, idx, ver, hdr);
+ memset(info, 0x00, sizeof(*info));
+ switch (!!data * *ver) {
+ case 0x10:
+ info->data = nv_ro32(bios, data);
+ return data;
+ default:
+ break;
+ }
+ return 0x00000000;
+}