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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-03 12:06:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-03 12:06:09 -0800
commit8fd5e7a2d9574b3cac1c9264ad1aed3b613ed6fe (patch)
tree5696f5d31c6c75b71bfc4852fb234b773e266cfe /arch/metag/tbx/tbidspram.S
parent529e5fbcd8d3cb48cf824ac8fde91cc80a9e985f (diff)
parentc60ac31542e93499b58dcfc1e3f6550ba5b5728e (diff)
Merge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull new ImgTec Meta architecture from James Hogan: "This adds core architecture support for Imagination's Meta processor cores, followed by some later miscellaneous arch/metag cleanups and fixes which I kept separate to ease review: - Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture - A few fixes all over, particularly for symbol prefixes - A few privilege protection fixes - Several cleanups (setup.c includes, split out a lot of metag_ksyms.c) - Fix some missing exports - Convert hugetlb to use vm_unmapped_area() - Copy device tree to non-init memory - Provide dma_get_sgtable()" * tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits) metag: Provide dma_get_sgtable() metag: prom.h: remove declaration of metag_dt_memblock_reserve() metag: copy devicetree to non-init memory metag: cleanup metag_ksyms.c includes metag: move mm/init.c exports out of metag_ksyms.c metag: move usercopy.c exports out of metag_ksyms.c metag: move setup.c exports out of metag_ksyms.c metag: move kick.c exports out of metag_ksyms.c metag: move traps.c exports out of metag_ksyms.c metag: move irq enable out of irqflags.h on SMP genksyms: fix metag symbol prefix on crc symbols metag: hugetlb: convert to vm_unmapped_area() metag: export clear_page and copy_page metag: export metag_code_cache_flush_all metag: protect more non-MMU memory regions metag: make TXPRIVEXT bits explicit metag: kernel/setup.c: sort includes perf: Enable building perf tools for Meta metag: add boot time LNKGET/LNKSET check metag: add __init to metag_cache_probe() ...
Diffstat (limited to 'arch/metag/tbx/tbidspram.S')
-rw-r--r--arch/metag/tbx/tbidspram.S161
1 files changed, 161 insertions, 0 deletions
diff --git a/arch/metag/tbx/tbidspram.S b/arch/metag/tbx/tbidspram.S
new file mode 100644
index 000000000000..2f27c0372212
--- /dev/null
+++ b/arch/metag/tbx/tbidspram.S
@@ -0,0 +1,161 @@
+/*
+ * tbidspram.S
+ *
+ * Copyright (C) 2009, 2012 Imagination Technologies.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ *
+ * Explicit state save and restore routines forming part of the thread binary
+ * interface for META processors
+ */
+
+ .file "tbidspram.S"
+
+/* These aren't generally useful to a user so for now, they arent publically available */
+#define _TBIECH_DSPRAM_DUA_S 8
+#define _TBIECH_DSPRAM_DUA_BITS 0x7f00
+#define _TBIECH_DSPRAM_DUB_S 0
+#define _TBIECH_DSPRAM_DUB_BITS 0x007f
+
+/*
+ * void *__TBIDspramSaveA( short DspramSizes, void *pExt )
+ */
+ .text
+ .balign 4
+ .global ___TBIDspramSaveA
+ .type ___TBIDspramSaveA,function
+___TBIDspramSaveA:
+
+ SETL [A0StP++], D0.5, D1.5
+ MOV A0.3, D0Ar2
+
+ /* D1Ar1 - Dspram Sizes
+ * A0.4 - Pointer to buffer
+ */
+
+ /* Save the specified amount of dspram DUA */
+DL MOV D0AR.0, #0
+ LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUA_S
+ AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUA_BITS >> _TBIECH_DSPRAM_DUA_S)
+ SUB TXRPT, D1Ar1, #1
+$L1:
+DL MOV D0Re0, [D0AR.0++]
+DL MOV D0Ar6, [D0AR.0++]
+DL MOV D0Ar4, [D0AR.0++]
+DL MOV D0.5, [D0AR.0++]
+ MSETL [A0.3++], D0Re0, D0Ar6, D0Ar4, D0.5
+
+ BR $L1
+
+ GETL D0.5, D1.5, [--A0StP]
+ MOV PC, D1RtP
+
+ .size ___TBIDspramSaveA,.-___TBIDspramSaveA
+
+/*
+ * void *__TBIDspramSaveB( short DspramSizes, void *pExt )
+ */
+ .balign 4
+ .global ___TBIDspramSaveB
+ .type ___TBIDspramSaveB,function
+___TBIDspramSaveB:
+
+ SETL [A0StP++], D0.5, D1.5
+ MOV A0.3, D0Ar2
+
+ /* D1Ar1 - Dspram Sizes
+ * A0.3 - Pointer to buffer
+ */
+
+ /* Save the specified amount of dspram DUA */
+DL MOV D0BR.0, #0
+ LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUB_S
+ AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUB_BITS >> _TBIECH_DSPRAM_DUB_S)
+ SUB TXRPT, D1Ar1, #1
+$L2:
+DL MOV D0Re0, [D0BR.0++]
+DL MOV D0Ar6, [D0BR.0++]
+DL MOV D0Ar4, [D0BR.0++]
+DL MOV D0.5, [D0BR.0++]
+ MSETL [A0.3++], D0Re0, D0Ar6, D0Ar4, D0.5
+
+ BR $L2
+
+ GETL D0.5, D1.5, [--A0StP]
+ MOV PC, D1RtP
+
+ .size ___TBIDspramSaveB,.-___TBIDspramSaveB
+
+/*
+ * void *__TBIDspramRestoreA( short DspramSizes, void *pExt )
+ */
+ .balign 4
+ .global ___TBIDspramRestoreA
+ .type ___TBIDspramRestoreA,function
+___TBIDspramRestoreA:
+
+ SETL [A0StP++], D0.5, D1.5
+ MOV A0.3, D0Ar2
+
+ /* D1Ar1 - Dspram Sizes
+ * A0.3 - Pointer to buffer
+ */
+
+ /* Restore the specified amount of dspram DUA */
+DL MOV D0AW.0, #0
+ LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUA_S
+ AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUA_BITS >> _TBIECH_DSPRAM_DUA_S)
+ SUB TXRPT, D1Ar1, #1
+$L3:
+ MGETL D0Re0, D0Ar6, D0Ar4, D0.5, [A0.3++]
+DL MOV [D0AW.0++], D0Re0
+DL MOV [D0AW.0++], D0Ar6
+DL MOV [D0AW.0++], D0Ar4
+DL MOV [D0AW.0++], D0.5
+
+ BR $L3
+
+ GETL D0.5, D1.5, [--A0StP]
+ MOV PC, D1RtP
+
+ .size ___TBIDspramRestoreA,.-___TBIDspramRestoreA
+
+/*
+ * void *__TBIDspramRestoreB( short DspramSizes, void *pExt )
+ */
+ .balign 4
+ .global ___TBIDspramRestoreB
+ .type ___TBIDspramRestoreB,function
+___TBIDspramRestoreB:
+
+ SETL [A0StP++], D0.5, D1.5
+ MOV A0.3, D0Ar2
+
+ /* D1Ar1 - Dspram Sizes
+ * A0.3 - Pointer to buffer
+ */
+
+ /* Restore the specified amount of dspram DUA */
+DL MOV D0BW.0, #0
+ LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUB_S
+ AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUB_BITS >> _TBIECH_DSPRAM_DUB_S)
+ SUB TXRPT, D1Ar1, #1
+$L4:
+ MGETL D0Re0, D0Ar6, D0Ar4, D0.5, [A0.3++]
+DL MOV [D0BW.0++], D0Re0
+DL MOV [D0BW.0++], D0Ar6
+DL MOV [D0BW.0++], D0Ar4
+DL MOV [D0BW.0++], D0.5
+
+ BR $L4
+
+ GETL D0.5, D1.5, [--A0StP]
+ MOV PC, D1RtP
+
+ .size ___TBIDspramRestoreB,.-___TBIDspramRestoreB
+
+/*
+ * End of tbidspram.S
+ */