diff options
Diffstat (limited to 'arch/sparc/kernel/head_64.S')
| -rw-r--r-- | arch/sparc/kernel/head_64.S | 64 |
1 files changed, 57 insertions, 7 deletions
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S index 0eac1b2fc53..452f04fe8da 100644 --- a/arch/sparc/kernel/head_64.S +++ b/arch/sparc/kernel/head_64.S @@ -133,7 +133,9 @@ prom_sun4v_name: prom_niagara_prefix: .asciz "SUNW,UltraSPARC-T" prom_sparc_prefix: - .asciz "SPARC-T" + .asciz "SPARC-" +prom_sparc64x_prefix: + .asciz "SPARC64-X" .align 4 prom_root_compatible: .skip 64 @@ -280,8 +282,8 @@ sun4v_chip_type: stx %l2, [%l4 + 0x0] ldx [%sp + 2047 + 128 + 0x50], %l3 ! physaddr low /* 4MB align */ - srlx %l3, 22, %l3 - sllx %l3, 22, %l3 + srlx %l3, ILOG2_4MB, %l3 + sllx %l3, ILOG2_4MB, %l3 stx %l3, [%l4 + 0x8] /* Leave service as-is, "call-method" */ @@ -396,7 +398,7 @@ sun4v_chip_type: or %g1, %lo(prom_cpu_compatible), %g1 sethi %hi(prom_sparc_prefix), %g7 or %g7, %lo(prom_sparc_prefix), %g7 - mov 7, %g3 + mov 6, %g3 90: ldub [%g7], %g2 ldub [%g1], %g4 cmp %g2, %g4 @@ -408,11 +410,24 @@ sun4v_chip_type: sethi %hi(prom_cpu_compatible), %g1 or %g1, %lo(prom_cpu_compatible), %g1 - ldub [%g1 + 7], %g2 + ldub [%g1 + 6], %g2 + cmp %g2, 'T' + be,pt %xcc, 70f + cmp %g2, 'M' + bne,pn %xcc, 49f + nop + +70: ldub [%g1 + 7], %g2 cmp %g2, '3' be,pt %xcc, 5f mov SUN4V_CHIP_NIAGARA3, %g4 - ba,pt %xcc, 4f + cmp %g2, '4' + be,pt %xcc, 5f + mov SUN4V_CHIP_NIAGARA4, %g4 + cmp %g2, '5' + be,pt %xcc, 5f + mov SUN4V_CHIP_NIAGARA5, %g4 + ba,pt %xcc, 49f nop 91: sethi %hi(prom_cpu_compatible), %g1 @@ -426,6 +441,25 @@ sun4v_chip_type: mov SUN4V_CHIP_NIAGARA2, %g4 4: + /* Athena */ + sethi %hi(prom_cpu_compatible), %g1 + or %g1, %lo(prom_cpu_compatible), %g1 + sethi %hi(prom_sparc64x_prefix), %g7 + or %g7, %lo(prom_sparc64x_prefix), %g7 + mov 9, %g3 +41: ldub [%g7], %g2 + ldub [%g1], %g4 + cmp %g2, %g4 + bne,pn %icc, 49f + add %g7, 1, %g7 + subcc %g3, 1, %g3 + bne,pt %xcc, 41b + add %g1, 1, %g1 + mov SUN4V_CHIP_SPARC64X, %g4 + ba,pt %xcc, 5f + nop + +49: mov SUN4V_CHIP_UNKNOWN, %g4 5: sethi %hi(sun4v_chip_type), %g2 or %g2, %lo(sun4v_chip_type), %g2 @@ -545,6 +579,12 @@ niagara_tlb_fixup: cmp %g1, SUN4V_CHIP_NIAGARA3 be,pt %xcc, niagara2_patch nop + cmp %g1, SUN4V_CHIP_NIAGARA4 + be,pt %xcc, niagara4_patch + nop + cmp %g1, SUN4V_CHIP_NIAGARA5 + be,pt %xcc, niagara4_patch + nop call generic_patch_copyops nop @@ -554,6 +594,16 @@ niagara_tlb_fixup: nop ba,a,pt %xcc, 80f +niagara4_patch: + call niagara4_patch_copyops + nop + call niagara4_patch_bzero + nop + call niagara4_patch_pageops + nop + + ba,a,pt %xcc, 80f + niagara2_patch: call niagara2_patch_copyops nop @@ -887,7 +937,7 @@ swapper_4m_tsb: * error and will instead write junk into the relocation and * you'll have an unbootable kernel. */ -#include "ttable.S" +#include "ttable_64.S" ! 0x0000000000428000 |