Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 131 insertions, 0 deletions

diff --git a/arch/sparc64/lib/VISsave.S b/arch/sparc64/lib/VISsave.S
new file mode 100644
index 000000000000..65e328d600a8
--- /dev/null
+++ b/arch/sparc64/lib/VISsave.S
@@ -0,0 +1,131 @@
+/* $Id: VISsave.S,v 1.6 2002/02/09 19:49:30 davem Exp $
+ * VISsave.S: Code for saving FPU register state for
+ *            VIS routines. One should not call this directly,
+ *            but use macros provided in <asm/visasm.h>.
+ *
+ * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
+ */
+
+#include <asm/asi.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include <asm/visasm.h>
+#include <asm/thread_info.h>
+
+        .text
+        .globl          VISenter, VISenterhalf
+
+        /* On entry: %o5=current FPRS value, %g7 is callers address */
+        /* May clobber %o5, %g1, %g2, %g3, %g7, %icc, %xcc */
+
+        /* Nothing special need be done here to handle pre-emption, this
+         * FPU save/restore mechanism is already preemption safe.
+         */
+
+        .align          32
+VISenter:
+        ldub            [%g6 + TI_FPDEPTH], %g1
+        brnz,a,pn       %g1, 1f
+         cmp            %g1, 1
+        stb             %g0, [%g6 + TI_FPSAVED]
+        stx             %fsr, [%g6 + TI_XFSR]
+9:      jmpl            %g7 + %g0, %g0
+         nop
+1:      bne,pn          %icc, 2f
+
+         srl            %g1, 1, %g1
+vis1:   ldub            [%g6 + TI_FPSAVED], %g3
+        stx             %fsr, [%g6 + TI_XFSR]
+        or              %g3, %o5, %g3
+        stb             %g3, [%g6 + TI_FPSAVED]
+        rd              %gsr, %g3
+        clr             %g1
+        ba,pt           %xcc, 3f
+
+         stx            %g3, [%g6 + TI_GSR]
+2:      add             %g6, %g1, %g3
+        cmp             %o5, FPRS_DU
+        be,pn           %icc, 6f
+         sll            %g1, 3, %g1
+        stb             %o5, [%g3 + TI_FPSAVED]
+        rd              %gsr, %g2
+        add             %g6, %g1, %g3
+        stx             %g2, [%g3 + TI_GSR]
+
+        add             %g6, %g1, %g2
+        stx             %fsr, [%g2 + TI_XFSR]
+        sll             %g1, 5, %g1
+3:      andcc           %o5, FPRS_DL|FPRS_DU, %g0
+        be,pn           %icc, 9b
+         add            %g6, TI_FPREGS, %g2
+        andcc           %o5, FPRS_DL, %g0
+        membar          #StoreStore | #LoadStore
+
+        be,pn           %icc, 4f
+         add            %g6, TI_FPREGS+0x40, %g3
+        stda            %f0, [%g2 + %g1] ASI_BLK_P
+        stda            %f16, [%g3 + %g1] ASI_BLK_P
+        andcc           %o5, FPRS_DU, %g0
+        be,pn           %icc, 5f
+4:       add            %g1, 128, %g1
+        stda            %f32, [%g2 + %g1] ASI_BLK_P
+
+        stda            %f48, [%g3 + %g1] ASI_BLK_P
+5:      membar          #Sync
+        jmpl            %g7 + %g0, %g0
+         nop
+
+6:      ldub            [%g3 + TI_FPSAVED], %o5
+        or              %o5, FPRS_DU, %o5
+        add             %g6, TI_FPREGS+0x80, %g2
+        stb             %o5, [%g3 + TI_FPSAVED]
+
+        sll             %g1, 5, %g1
+        add             %g6, TI_FPREGS+0xc0, %g3
+        wr              %g0, FPRS_FEF, %fprs
+        membar          #StoreStore | #LoadStore
+        stda            %f32, [%g2 + %g1] ASI_BLK_P
+        stda            %f48, [%g3 + %g1] ASI_BLK_P
+        membar          #Sync
+        jmpl            %g7 + %g0, %g0
+
+         nop
+
+        .align          32
+VISenterhalf:
+        ldub            [%g6 + TI_FPDEPTH], %g1
+        brnz,a,pn       %g1, 1f
+         cmp            %g1, 1
+        stb             %g0, [%g6 + TI_FPSAVED]
+        stx             %fsr, [%g6 + TI_XFSR]
+        clr             %o5
+        jmpl            %g7 + %g0, %g0
+         wr             %g0, FPRS_FEF, %fprs
+
+1:      bne,pn          %icc, 2f
+         srl            %g1, 1, %g1
+        ba,pt           %xcc, vis1
+         sub            %g7, 8, %g7
+2:      addcc           %g6, %g1, %g3
+        sll             %g1, 3, %g1
+        andn            %o5, FPRS_DU, %g2
+        stb             %g2, [%g3 + TI_FPSAVED]
+
+        rd              %gsr, %g2
+        add             %g6, %g1, %g3
+        stx             %g2, [%g3 + TI_GSR]
+        add             %g6, %g1, %g2
+        stx             %fsr, [%g2 + TI_XFSR]
+        sll             %g1, 5, %g1
+3:      andcc           %o5, FPRS_DL, %g0
+        be,pn           %icc, 4f
+         add            %g6, TI_FPREGS, %g2
+
+        membar          #StoreStore | #LoadStore
+        add             %g6, TI_FPREGS+0x40, %g3
+        stda            %f0, [%g2 + %g1] ASI_BLK_P
+        stda            %f16, [%g3 + %g1] ASI_BLK_P
+        membar          #Sync
+4:      and             %o5, FPRS_DU, %o5
+        jmpl            %g7 + %g0, %g0
+         wr             %o5, FPRS_FEF, %fprs