X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fsparc64%2Fprom%2Fp1275.c;h=9eab4421e1e4c58d10597ab9b55aacddad872d86;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=eaa6ab19f51d48c30d4ff7307e0dd8fab3abc6cd;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git diff --git a/arch/sparc64/prom/p1275.c b/arch/sparc64/prom/p1275.c index eaa6ab19f..9eab4421e 100644 --- a/arch/sparc64/prom/p1275.c +++ b/arch/sparc64/prom/p1275.c @@ -27,231 +27,14 @@ struct { extern void prom_world(int); -void prom_cif_interface (void) -{ - __asm__ __volatile__ ( -" mov %0, %%o0\n" -" ldx [%%o0 + 0x010], %%o1 ! prom_cif_stack\n" -" save %%o1, -0x190, %%sp\n" -" ldx [%%i0 + 0x008], %%l2 ! prom_cif_handler\n" -" rdpr %%pstate, %%l4\n" -" wrpr %%g0, 0x15, %%pstate ! save alternate globals\n" -" stx %%g1, [%%sp + 2047 + 0x0b0]\n" -" stx %%g2, [%%sp + 2047 + 0x0b8]\n" -" stx %%g3, [%%sp + 2047 + 0x0c0]\n" -" stx %%g4, [%%sp + 2047 + 0x0c8]\n" -" stx %%g5, [%%sp + 2047 + 0x0d0]\n" -" stx %%g6, [%%sp + 2047 + 0x0d8]\n" -" stx %%g7, [%%sp + 2047 + 0x0e0]\n" -" wrpr %%g0, 0x814, %%pstate ! save interrupt globals\n" -" stx %%g1, [%%sp + 2047 + 0x0e8]\n" -" stx %%g2, [%%sp + 2047 + 0x0f0]\n" -" stx %%g3, [%%sp + 2047 + 0x0f8]\n" -" stx %%g4, [%%sp + 2047 + 0x100]\n" -" stx %%g5, [%%sp + 2047 + 0x108]\n" -" stx %%g6, [%%sp + 2047 + 0x110]\n" -" stx %%g7, [%%sp + 2047 + 0x118]\n" -" wrpr %%g0, 0x14, %%pstate ! save normal globals\n" -" stx %%g1, [%%sp + 2047 + 0x120]\n" -" stx %%g2, [%%sp + 2047 + 0x128]\n" -" stx %%g3, [%%sp + 2047 + 0x130]\n" -" stx %%g4, [%%sp + 2047 + 0x138]\n" -" stx %%g5, [%%sp + 2047 + 0x140]\n" -" stx %%g6, [%%sp + 2047 + 0x148]\n" -" stx %%g7, [%%sp + 2047 + 0x150]\n" -" wrpr %%g0, 0x414, %%pstate ! save mmu globals\n" -" stx %%g1, [%%sp + 2047 + 0x158]\n" -" stx %%g2, [%%sp + 2047 + 0x160]\n" -" stx %%g3, [%%sp + 2047 + 0x168]\n" -" stx %%g4, [%%sp + 2047 + 0x170]\n" -" stx %%g5, [%%sp + 2047 + 0x178]\n" -" stx %%g6, [%%sp + 2047 + 0x180]\n" -" stx %%g7, [%%sp + 2047 + 0x188]\n" -" mov %%g1, %%l0 ! also save to locals, so we can handle\n" -" mov %%g2, %%l1 ! tlb faults later on, when accessing\n" -" mov %%g3, %%l3 ! the stack.\n" -" mov %%g7, %%l5\n" -" wrpr %%l4, %1, %%pstate ! turn off interrupts\n" -" call %%l2\n" -" add %%i0, 0x018, %%o0 ! prom_args\n" -" wrpr %%g0, 0x414, %%pstate ! restore mmu globals\n" -" mov %%l0, %%g1\n" -" mov %%l1, %%g2\n" -" mov %%l3, %%g3\n" -" mov %%l5, %%g7\n" -" wrpr %%g0, 0x14, %%pstate ! restore normal globals\n" -" ldx [%%sp + 2047 + 0x120], %%g1\n" -" ldx [%%sp + 2047 + 0x128], %%g2\n" -" ldx [%%sp + 2047 + 0x130], %%g3\n" -" ldx [%%sp + 2047 + 0x138], %%g4\n" -" ldx [%%sp + 2047 + 0x140], %%g5\n" -" ldx [%%sp + 2047 + 0x148], %%g6\n" -" ldx [%%sp + 2047 + 0x150], %%g7\n" -" wrpr %%g0, 0x814, %%pstate ! restore interrupt globals\n" -" ldx [%%sp + 2047 + 0x0e8], %%g1\n" -" ldx [%%sp + 2047 + 0x0f0], %%g2\n" -" ldx [%%sp + 2047 + 0x0f8], %%g3\n" -" ldx [%%sp + 2047 + 0x100], %%g4\n" -" ldx [%%sp + 2047 + 0x108], %%g5\n" -" ldx [%%sp + 2047 + 0x110], %%g6\n" -" ldx [%%sp + 2047 + 0x118], %%g7\n" -" wrpr %%g0, 0x15, %%pstate ! restore alternate globals\n" -" ldx [%%sp + 2047 + 0x0b0], %%g1\n" -" ldx [%%sp + 2047 + 0x0b8], %%g2\n" -" ldx [%%sp + 2047 + 0x0c0], %%g3\n" -" ldx [%%sp + 2047 + 0x0c8], %%g4\n" -" ldx [%%sp + 2047 + 0x0d0], %%g5\n" -" ldx [%%sp + 2047 + 0x0d8], %%g6\n" -" ldx [%%sp + 2047 + 0x0e0], %%g7\n" -" wrpr %%l4, 0, %%pstate ! restore original pstate\n" -" ret\n" -" restore\n" -" " : : "r" (&p1275buf), "i" (PSTATE_IE)); -} - -void prom_cif_callback(void) -{ - __asm__ __volatile__ ( -" mov %0, %%o1\n" -" save %%sp, -0x270, %%sp\n" -" rdpr %%pstate, %%l4\n" -" wrpr %%g0, 0x15, %%pstate ! save PROM alternate globals\n" -" stx %%g1, [%%sp + 2047 + 0x0b0]\n" -" stx %%g2, [%%sp + 2047 + 0x0b8]\n" -" stx %%g3, [%%sp + 2047 + 0x0c0]\n" -" stx %%g4, [%%sp + 2047 + 0x0c8]\n" -" stx %%g5, [%%sp + 2047 + 0x0d0]\n" -" stx %%g6, [%%sp + 2047 + 0x0d8]\n" -" stx %%g7, [%%sp + 2047 + 0x0e0]\n" -" ! restore Linux alternate globals\n" -" ldx [%%sp + 2047 + 0x190], %%g1\n" -" ldx [%%sp + 2047 + 0x198], %%g2\n" -" ldx [%%sp + 2047 + 0x1a0], %%g3\n" -" ldx [%%sp + 2047 + 0x1a8], %%g4\n" -" ldx [%%sp + 2047 + 0x1b0], %%g5\n" -" ldx [%%sp + 2047 + 0x1b8], %%g6\n" -" ldx [%%sp + 2047 + 0x1c0], %%g7\n" -" wrpr %%g0, 0x814, %%pstate ! save PROM interrupt globals\n" -" stx %%g1, [%%sp + 2047 + 0x0e8]\n" -" stx %%g2, [%%sp + 2047 + 0x0f0]\n" -" stx %%g3, [%%sp + 2047 + 0x0f8]\n" -" stx %%g4, [%%sp + 2047 + 0x100]\n" -" stx %%g5, [%%sp + 2047 + 0x108]\n" -" stx %%g6, [%%sp + 2047 + 0x110]\n" -" stx %%g7, [%%sp + 2047 + 0x118]\n" -" ! restore Linux interrupt globals\n" -" ldx [%%sp + 2047 + 0x1c8], %%g1\n" -" ldx [%%sp + 2047 + 0x1d0], %%g2\n" -" ldx [%%sp + 2047 + 0x1d8], %%g3\n" -" ldx [%%sp + 2047 + 0x1e0], %%g4\n" -" ldx [%%sp + 2047 + 0x1e8], %%g5\n" -" ldx [%%sp + 2047 + 0x1f0], %%g6\n" -" ldx [%%sp + 2047 + 0x1f8], %%g7\n" -" wrpr %%g0, 0x14, %%pstate ! save PROM normal globals\n" -" stx %%g1, [%%sp + 2047 + 0x120]\n" -" stx %%g2, [%%sp + 2047 + 0x128]\n" -" stx %%g3, [%%sp + 2047 + 0x130]\n" -" stx %%g4, [%%sp + 2047 + 0x138]\n" -" stx %%g5, [%%sp + 2047 + 0x140]\n" -" stx %%g6, [%%sp + 2047 + 0x148]\n" -" stx %%g7, [%%sp + 2047 + 0x150]\n" -" ! restore Linux normal globals\n" -" ldx [%%sp + 2047 + 0x200], %%g1\n" -" ldx [%%sp + 2047 + 0x208], %%g2\n" -" ldx [%%sp + 2047 + 0x210], %%g3\n" -" ldx [%%sp + 2047 + 0x218], %%g4\n" -" ldx [%%sp + 2047 + 0x220], %%g5\n" -" ldx [%%sp + 2047 + 0x228], %%g6\n" -" ldx [%%sp + 2047 + 0x230], %%g7\n" -" wrpr %%g0, 0x414, %%pstate ! save PROM mmu globals\n" -" stx %%g1, [%%sp + 2047 + 0x158]\n" -" stx %%g2, [%%sp + 2047 + 0x160]\n" -" stx %%g3, [%%sp + 2047 + 0x168]\n" -" stx %%g4, [%%sp + 2047 + 0x170]\n" -" stx %%g5, [%%sp + 2047 + 0x178]\n" -" stx %%g6, [%%sp + 2047 + 0x180]\n" -" stx %%g7, [%%sp + 2047 + 0x188]\n" -" ! restore Linux mmu globals\n" -" ldx [%%sp + 2047 + 0x238], %%o0\n" -" ldx [%%sp + 2047 + 0x240], %%o1\n" -" ldx [%%sp + 2047 + 0x248], %%l2\n" -" ldx [%%sp + 2047 + 0x250], %%l3\n" -" ldx [%%sp + 2047 + 0x258], %%l5\n" -" ldx [%%sp + 2047 + 0x260], %%l6\n" -" ldx [%%sp + 2047 + 0x268], %%l7\n" -" ! switch to Linux tba\n" -" sethi %%hi(sparc64_ttable_tl0), %%l1\n" -" rdpr %%tba, %%l0 ! save PROM tba\n" -" mov %%o0, %%g1\n" -" mov %%o1, %%g2\n" -" mov %%l2, %%g3\n" -" mov %%l3, %%g4\n" -" mov %%l5, %%g5\n" -" mov %%l6, %%g6\n" -" mov %%l7, %%g7\n" -" wrpr %%l1, %%tba ! install Linux tba\n" -" wrpr %%l4, 0, %%pstate ! restore PSTATE\n" -" call prom_world\n" -" mov %%g0, %%o0\n" -" ldx [%%i1 + 0x000], %%l2\n" -" call %%l2\n" -" mov %%i0, %%o0\n" -" mov %%o0, %%l1\n" -" call prom_world\n" -" or %%g0, 1, %%o0\n" -" wrpr %%g0, 0x14, %%pstate ! interrupts off\n" -" ! restore PROM mmu globals\n" -" ldx [%%sp + 2047 + 0x158], %%o0\n" -" ldx [%%sp + 2047 + 0x160], %%o1\n" -" ldx [%%sp + 2047 + 0x168], %%l2\n" -" ldx [%%sp + 2047 + 0x170], %%l3\n" -" ldx [%%sp + 2047 + 0x178], %%l5\n" -" ldx [%%sp + 2047 + 0x180], %%l6\n" -" ldx [%%sp + 2047 + 0x188], %%l7\n" -" wrpr %%g0, 0x414, %%pstate ! restore PROM mmu globals\n" -" mov %%o0, %%g1\n" -" mov %%o1, %%g2\n" -" mov %%l2, %%g3\n" -" mov %%l3, %%g4\n" -" mov %%l5, %%g5\n" -" mov %%l6, %%g6\n" -" mov %%l7, %%g7\n" -" wrpr %%l0, %%tba ! restore PROM tba\n" -" wrpr %%g0, 0x14, %%pstate ! restore PROM normal globals\n" -" ldx [%%sp + 2047 + 0x120], %%g1\n" -" ldx [%%sp + 2047 + 0x128], %%g2\n" -" ldx [%%sp + 2047 + 0x130], %%g3\n" -" ldx [%%sp + 2047 + 0x138], %%g4\n" -" ldx [%%sp + 2047 + 0x140], %%g5\n" -" ldx [%%sp + 2047 + 0x148], %%g6\n" -" ldx [%%sp + 2047 + 0x150], %%g7\n" -" wrpr %%g0, 0x814, %%pstate ! restore PROM interrupt globals\n" -" ldx [%%sp + 2047 + 0x0e8], %%g1\n" -" ldx [%%sp + 2047 + 0x0f0], %%g2\n" -" ldx [%%sp + 2047 + 0x0f8], %%g3\n" -" ldx [%%sp + 2047 + 0x100], %%g4\n" -" ldx [%%sp + 2047 + 0x108], %%g5\n" -" ldx [%%sp + 2047 + 0x110], %%g6\n" -" ldx [%%sp + 2047 + 0x118], %%g7\n" -" wrpr %%g0, 0x15, %%pstate ! restore PROM alternate globals\n" -" ldx [%%sp + 2047 + 0x0b0], %%g1\n" -" ldx [%%sp + 2047 + 0x0b8], %%g2\n" -" ldx [%%sp + 2047 + 0x0c0], %%g3\n" -" ldx [%%sp + 2047 + 0x0c8], %%g4\n" -" ldx [%%sp + 2047 + 0x0d0], %%g5\n" -" ldx [%%sp + 2047 + 0x0d8], %%g6\n" -" ldx [%%sp + 2047 + 0x0e0], %%g7\n" -" wrpr %%l4, 0, %%pstate\n" -" ret\n" -" restore %%l1, 0, %%o0\n" -" " : : "r" (&p1275buf), "i" (PSTATE_PRIV)); -} +extern void prom_cif_interface(void); +extern void prom_cif_callback(void); /* * This provides SMP safety on the p1275buf. prom_callback() drops this lock * to allow recursuve acquisition. */ -spinlock_t prom_entry_lock = SPIN_LOCK_UNLOCKED; +DEFINE_SPINLOCK(prom_entry_lock); long p1275_cmd (char *service, long fmt, ...) {