[POWERPC] spufs: Add /lslr, /dma_info and /proxydma files

The /lslr file gives read access to the SPU_LSLR register in hex; 0x3fff
for example The /dma_info file provides read access to the SPU Command
Queue in a binary format. The /proxydma_info files provides read access
access to the Proxy Command Queue in a binary format. The spu_info.h
file provides data structures for interpreting the binary format of
/dma_info and /proxydma_info.

Signed-off-by: Dwayne Grant McConnell <decimal@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 55 insertions, 0 deletions

diff --git a/include/asm-powerpc/Kbuild b/include/asm-powerpc/Kbuild
index 9827849953a3..1e637381c118 100644
--- a/include/asm-powerpc/Kbuild
+++ b/include/asm-powerpc/Kbuild
@@ -17,6 +17,7 @@ header-y += ipc.h
 header-y += poll.h
 header-y += shmparam.h
 header-y += sockios.h
+header-y += spu_info.h
 header-y += ucontext.h
 header-y += ioctl.h
 header-y += linkage.h
diff --git a/include/asm-powerpc/spu_info.h b/include/asm-powerpc/spu_info.h
new file mode 100644
index 000000000000..3545efbf9891
--- /dev/null
+++ b/include/asm-powerpc/spu_info.h
@@ -0,0 +1,54 @@
+/*
+ * SPU info structures
+ *
+ * (C) Copyright 2006 IBM Corp.
+ *
+ * Author: Dwayne Grant McConnell <decimal@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _SPU_INFO_H
+#define _SPU_INFO_H
+
+#ifdef __KERNEL__
+#include <asm/spu.h>
+#include <linux/types.h>
+#else
+struct mfc_cq_sr {
+        __u64 mfc_cq_data0_RW;
+        __u64 mfc_cq_data1_RW;
+        __u64 mfc_cq_data2_RW;
+        __u64 mfc_cq_data3_RW;
+};
+#endif /* __KERNEL__ */
+
+struct spu_dma_info {
+        __u64 dma_info_type;
+        __u64 dma_info_mask;
+        __u64 dma_info_status;
+        __u64 dma_info_stall_and_notify;
+        __u64 dma_info_atomic_command_status;
+        struct mfc_cq_sr dma_info_command_data[16];
+};
+
+struct spu_proxydma_info {
+        __u64 proxydma_info_type;
+        __u64 proxydma_info_mask;
+        __u64 proxydma_info_status;
+        struct mfc_cq_sr proxydma_info_command_data[8];
+};
+
+#endif