[SPARC64]: Use ASI_SCRATCHPAD address 0x0 properly.

This is where the virtual address of the fault status
area belongs.

To set it up we don't make a hypervisor call, instead
we call OBP's SUNW,set-trap-table with the real address
of the fault status area as the second argument.  And
right before that call we write the virtual address into
ASI_SCRATCHPAD vaddr 0x0.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index d048f0dfd423ea75838fe4243903d477d34b0ccb..f581f0e917f7ee97b553247ccd0c9b584f2eb426 100644 (file)
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -521,11 +521,36 @@ setup_trap_table:
        wrpr    %g0, 15, %pil
 
        /* Make the firmware call to jump over to the Linux trap table.  */
-       call    prom_set_trap_table
+       sethi   %hi(is_sun4v), %o0
+       lduw    [%o0 + %lo(is_sun4v)], %o0
+       brz,pt  %o0, 1f
+        nop
+
+       TRAP_LOAD_TRAP_BLOCK(%g2, %g3)
+       add     %g2, TRAP_PER_CPU_FAULT_INFO, %g2
+       stxa    %g2, [%g0] ASI_SCRATCHPAD
+
+       /* Compute physical address:
+        *
+        * paddr = kern_base + (mmfsa_vaddr - KERNBASE)
+        */
+       sethi   %hi(KERNBASE), %g3
+       sub     %g2, %g3, %g2
+       sethi   %hi(kern_base), %g3
+       ldx     [%g3 + %lo(kern_base)], %g3
+       add     %g2, %g3, %o1
+
+       call    prom_set_trap_table_sun4v
+        sethi  %hi(sparc64_ttable_tl0), %o0
+
+       ba,pt   %xcc, 2f
+        nop
+
+1:     call    prom_set_trap_table
         sethi  %hi(sparc64_ttable_tl0), %o0
 
        /* Start using proper page size encodings in ctx register.  */
-       sethi   %hi(sparc64_kern_pri_context), %g3
+2:     sethi   %hi(sparc64_kern_pri_context), %g3
        ldx     [%g3 + %lo(sparc64_kern_pri_context)], %g2
 
        mov             PRIMARY_CONTEXT, %g1

diff --git a/arch/sparc64/kernel/sun4v_ivec.S b/arch/sparc64/kernel/sun4v_ivec.S
index d9d442017d3dc70e60048a560a86bd927f46ee0c..c0367ef7e0985cc046c2dc0e4b6d7a21218ef3c7 100644 (file)
--- a/arch/sparc64/kernel/sun4v_ivec.S
+++ b/arch/sparc64/kernel/sun4v_ivec.S
@@ -22,11 +22,8 @@ sun4v_cpu_mondo:
         nop
 
        /* Get &trap_block[smp_processor_id()] into %g3.  */
-       __GET_CPUID(%g1)
-       sethi   %hi(trap_block), %g3
-       sllx    %g1, TRAP_BLOCK_SZ_SHIFT, %g7
-       or      %g3, %lo(trap_block), %g3
-       add     %g3, %g7, %g3
+       ldxa    [%g0] ASI_SCRATCHPAD, %g3
+       sub     %g3, TRAP_PER_CPU_FAULT_INFO, %g3
 
        /* Get CPU mondo queue base phys address into %g7.  */
        ldx     [%g3 + TRAP_PER_CPU_CPU_MONDO_PA], %g7
@@ -74,11 +71,8 @@ sun4v_dev_mondo:
         nop
 
        /* Get &trap_block[smp_processor_id()] into %g3.  */
-       __GET_CPUID(%g1)
-       sethi   %hi(trap_block), %g3
-       sllx    %g1, TRAP_BLOCK_SZ_SHIFT, %g7
-       or      %g3, %lo(trap_block), %g3
-       add     %g3, %g7, %g3
+       ldxa    [%g0] ASI_SCRATCHPAD, %g3
+       sub     %g3, TRAP_PER_CPU_FAULT_INFO, %g3
 
        /* Get DEV mondo queue base phys address into %g5.  */
        ldx     [%g3 + TRAP_PER_CPU_DEV_MONDO_PA], %g5
@@ -143,11 +137,8 @@ sun4v_res_mondo:
         nop
 
        /* Get &trap_block[smp_processor_id()] into %g3.  */
-       __GET_CPUID(%g1)
-       sethi   %hi(trap_block), %g3
-       sllx    %g1, TRAP_BLOCK_SZ_SHIFT, %g7
-       or      %g3, %lo(trap_block), %g3
-       add     %g3, %g7, %g3
+       ldxa    [%g0] ASI_SCRATCHPAD, %g3
+       sub     %g3, TRAP_PER_CPU_FAULT_INFO, %g3
 
        /* Get RES mondo queue base phys address into %g5.  */
        ldx     [%g3 + TRAP_PER_CPU_RESUM_MONDO_PA], %g5
@@ -251,11 +242,8 @@ sun4v_nonres_mondo:
         nop
 
        /* Get &trap_block[smp_processor_id()] into %g3.  */
-       __GET_CPUID(%g1)
-       sethi   %hi(trap_block), %g3
-       sllx    %g1, TRAP_BLOCK_SZ_SHIFT, %g7
-       or      %g3, %lo(trap_block), %g3
-       add     %g3, %g7, %g3
+       ldxa    [%g0] ASI_SCRATCHPAD, %g3
+       sub     %g3, TRAP_PER_CPU_FAULT_INFO, %g3
 
        /* Get RES mondo queue base phys address into %g5.  */
        ldx     [%g3 + TRAP_PER_CPU_NONRESUM_MONDO_PA], %g5

diff --git a/arch/sparc64/kernel/sun4v_tlb_miss.S b/arch/sparc64/kernel/sun4v_tlb_miss.S
index c408b05a5f0a9659063fd994cb10d41d1f06dd4b..f6222623de38bc1243122620455de643c4f6850c 100644 (file)
--- a/arch/sparc64/kernel/sun4v_tlb_miss.S
+++ b/arch/sparc64/kernel/sun4v_tlb_miss.S
@@ -7,26 +7,20 @@
        .align  32
 
 sun4v_itlb_miss:
-       /* Load CPU ID into %g3.  */
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
+       /* Load MMU Miss base into %g2.  */
+       ldxa    [%g0] ASI_SCRATCHPAD, %g3
        
        /* Load UTSB reg into %g1.  */
-       ldxa    [%g1 + %g1] ASI_SCRATCHPAD, %g1
-
-       /* Load &trap_block[smp_processor_id()] into %g2.  */
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
+       mov     SCRATCHPAD_UTSBREG1, %g1
+       ldxa    [%g1] ASI_SCRATCHPAD, %g1
 
        /* Create a TAG TARGET, "(vaddr>>22) | (ctx << 48)", in %g6.
         * Branch if kernel TLB miss.  The kernel TSB and user TSB miss
         * code wants the missing virtual address in %g4, so that value
         * cannot be modified through the entirety of this handler.
         */
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_CTX_OFFSET], %g5
+       ldx     [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_I_CTX_OFFSET], %g5
        srlx    %g4, 22, %g3
        sllx    %g5, 48, %g6
        or      %g6, %g3, %g6
@@ -90,26 +84,20 @@ sun4v_itlb_load:
        retry
 
 sun4v_dtlb_miss:
-       /* Load CPU ID into %g3.  */
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
+       /* Load MMU Miss base into %g2.  */
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
        
        /* Load UTSB reg into %g1.  */
+       mov     SCRATCHPAD_UTSBREG1, %g1
        ldxa    [%g1 + %g1] ASI_SCRATCHPAD, %g1
 
-       /* Load &trap_block[smp_processor_id()] into %g2.  */
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-
        /* Create a TAG TARGET, "(vaddr>>22) | (ctx << 48)", in %g6.
         * Branch if kernel TLB miss.  The kernel TSB and user TSB miss
         * code wants the missing virtual address in %g4, so that value
         * cannot be modified through the entirety of this handler.
         */
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_CTX_OFFSET], %g5
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_D_CTX_OFFSET], %g5
        srlx    %g4, 22, %g3
        sllx    %g5, 48, %g6
        or      %g6, %g3, %g6
@@ -169,17 +157,10 @@ sun4v_dtlb_load:
        retry
 
 sun4v_dtlb_prot:
-       /* Load CPU ID into %g3.  */
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
+       /* Load MMU Miss base into %g2.  */
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
        
-       /* Load &trap_block[smp_processor_id()] into %g2.  */
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g5
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g5
        rdpr    %tl, %g1
        cmp     %g1, 1
        bgu,pn          %xcc, winfix_trampoline
@@ -187,35 +168,17 @@ sun4v_dtlb_prot:
        ba,pt           %xcc, sparc64_realfault_common
         mov            FAULT_CODE_DTLB | FAULT_CODE_WRITE, %g4
 
-       /* Called from trap table with &trap_block[smp_processor_id()] in
-        * %g5 and SCRATCHPAD_UTSBREG1 contents in %g1.
+       /* Called from trap table with TAG TARGET placed into
+        * %g6 and SCRATCHPAD_UTSBREG1 contents in %g1.
         */
 sun4v_itsb_miss:
-       ldx     [%g5 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_ADDR_OFFSET], %g4
-       ldx     [%g5 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_CTX_OFFSET], %g5
-
-       srlx    %g4, 22, %g7
-       sllx    %g5, 48, %g6
-       or      %g6, %g7, %g6
-       brz,pn  %g5, kvmap_itlb_4v
-        nop
-
        ba,pt   %xcc, sun4v_tsb_miss_common
         mov    FAULT_CODE_ITLB, %g3
 
-       /* Called from trap table with &trap_block[smp_processor_id()] in
-        * %g5 and SCRATCHPAD_UTSBREG1 contents in %g1.
+       /* Called from trap table with TAG TARGET placed into
+        * %g6 and SCRATCHPAD_UTSBREG1 contents in %g1.
         */
 sun4v_dtsb_miss:
-       ldx     [%g5 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g4
-       ldx     [%g5 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_CTX_OFFSET], %g5
-
-       srlx    %g4, 22, %g7
-       sllx    %g5, 48, %g6
-       or      %g6, %g7, %g6
-       brz,pn  %g5, kvmap_dtlb_4v
-        nop
-
        mov     FAULT_CODE_DTLB, %g3
 
        /* Create TSB pointer into %g1.  This is something like:
@@ -239,15 +202,10 @@ sun4v_tsb_miss_common:
 
        /* Instruction Access Exception, tl0. */
 sun4v_iacc:
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_TYPE_OFFSET], %g3
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_CTX_OFFSET], %g5
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
+       ldx     [%g2 + HV_FAULT_I_TYPE_OFFSET], %g3
+       ldx     [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_I_CTX_OFFSET], %g5
        sllx    %g3, 16, %g3
        or      %g5, %g3, %g5
        ba,pt   %xcc, etrap
@@ -260,15 +218,10 @@ sun4v_iacc:
 
        /* Instruction Access Exception, tl1. */
 sun4v_iacc_tl1:
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_TYPE_OFFSET], %g3
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_I_CTX_OFFSET], %g5
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
+       ldx     [%g2 + HV_FAULT_I_TYPE_OFFSET], %g3
+       ldx     [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_I_CTX_OFFSET], %g5
        sllx    %g3, 16, %g3
        or      %g5, %g3, %g5
        ba,pt   %xcc, etraptl1
@@ -281,15 +234,10 @@ sun4v_iacc_tl1:
 
        /* Data Access Exception, tl0. */
 sun4v_dacc:
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_TYPE_OFFSET], %g3
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_CTX_OFFSET], %g5
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
+       ldx     [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_D_CTX_OFFSET], %g5
        sllx    %g3, 16, %g3
        or      %g5, %g3, %g5
        ba,pt   %xcc, etrap
@@ -302,15 +250,10 @@ sun4v_dacc:
 
        /* Data Access Exception, tl1. */
 sun4v_dacc_tl1:
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_TYPE_OFFSET], %g3
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_CTX_OFFSET], %g5
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
+       ldx     [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_D_CTX_OFFSET], %g5
        sllx    %g3, 16, %g3
        or      %g5, %g3, %g5
        ba,pt   %xcc, etraptl1
@@ -323,15 +266,10 @@ sun4v_dacc_tl1:
 
        /* Memory Address Unaligned.  */
 sun4v_mna:
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
        mov     HV_FAULT_TYPE_UNALIGNED, %g3
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_CTX_OFFSET], %g5
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_D_CTX_OFFSET], %g5
        sllx    %g3, 16, %g3
        or      %g5, %g3, %g5
 
@@ -359,15 +297,10 @@ sun4v_privact:
 
        /* Unaligned ldd float, tl0. */
 sun4v_lddfmna:
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_TYPE_OFFSET], %g3
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_CTX_OFFSET], %g5
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
+       ldx     [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_D_CTX_OFFSET], %g5
        sllx    %g3, 16, %g3
        or      %g5, %g3, %g5
        ba,pt   %xcc, etrap
@@ -380,15 +313,10 @@ sun4v_lddfmna:
 
        /* Unaligned std float, tl0. */
 sun4v_stdfmna:
-       mov     SCRATCHPAD_CPUID, %g1
-       ldxa    [%g1] ASI_SCRATCHPAD, %g3
-       sethi   %hi(trap_block), %g2
-       or      %g2, %lo(trap_block), %g2
-       sllx    %g3, TRAP_BLOCK_SZ_SHIFT, %g3
-       add     %g2, %g3, %g2
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_TYPE_OFFSET], %g3
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_ADDR_OFFSET], %g4
-       ldx     [%g2 + TRAP_PER_CPU_FAULT_INFO + HV_FAULT_D_CTX_OFFSET], %g5
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2
+       ldx     [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4
+       ldx     [%g2 + HV_FAULT_D_CTX_OFFSET], %g5
        sllx    %g3, 16, %g3
        or      %g5, %g3, %g5
        ba,pt   %xcc, etrap

diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S
index c476f5b321fb481dc852357c71fbfa8dbf295f8f..88382200c7b870125e194f2cd25e6e90d17b00a0 100644 (file)
--- a/arch/sparc64/kernel/trampoline.S
+++ b/arch/sparc64/kernel/trampoline.S
@@ -389,10 +389,35 @@ after_lock_tlb:
        or              %o1, PSTATE_IE, %o1
        wrpr            %o1, 0, %pstate
 
-       call            prom_set_trap_table
+       sethi           %hi(is_sun4v), %o0
+       lduw            [%o0 + %lo(is_sun4v)], %o0
+       brz,pt          %o0, 1f
+        nop
+
+       TRAP_LOAD_TRAP_BLOCK(%g2, %g3)
+       add             %g2, TRAP_PER_CPU_FAULT_INFO, %g2
+       stxa            %g2, [%g0] ASI_SCRATCHPAD
+
+       /* Compute physical address:
+        *
+        * paddr = kern_base + (mmfsa_vaddr - KERNBASE)
+        */
+       sethi           %hi(KERNBASE), %g3
+       sub             %g2, %g3, %g2
+       sethi           %hi(kern_base), %g3
+       ldx             [%g3 + %lo(kern_base)], %g3
+       add             %g2, %g3, %o1
+
+       call            prom_set_trap_table_sun4v
+        sethi          %hi(sparc64_ttable_tl0), %o0
+
+       ba,pt           %xcc, 2f
+        nop
+
+1:     call            prom_set_trap_table
         sethi          %hi(sparc64_ttable_tl0), %o0
 
-       call            smp_callin
+2:     call            smp_callin
         nop
        call            cpu_idle
         mov            0, %o0

diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 7faba33202a9052ebf06960058403a48647ebc75..88eb6f6be5620b2ccefc01816317c016ab774e3e 100644 (file)
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1109,24 +1109,6 @@ static void __init tsb_phys_patch(void)
        }
 }
 
-/* Register this cpu's fault status area with the hypervisor.  */
-void __cpuinit sun4v_register_fault_status(void)
-{
-       register unsigned long func asm("%o5");
-       register unsigned long arg0 asm("%o0");
-       int cpu = hard_smp_processor_id();
-       struct trap_per_cpu *tb = &trap_block[cpu];
-       unsigned long pa;
-
-       pa = kern_base + ((unsigned long) tb - KERNBASE);
-       func = HV_FAST_MMU_FAULT_AREA_CONF;
-       arg0 = pa;
-       __asm__ __volatile__("ta        %4"
-                            : "=&r" (func), "=&r" (arg0)
-                            : "0" (func), "1" (arg0),
-                              "i" (HV_FAST_TRAP));
-}
-
 /* paging_init() sets up the page tables */
 
 extern void cheetah_ecache_flush_init(void);
@@ -1147,10 +1129,8 @@ void __init paging_init(void)
            tlb_type == hypervisor)
                tsb_phys_patch();
 
-       if (tlb_type == hypervisor) {
+       if (tlb_type == hypervisor)
                sun4v_patch_tlb_handlers();
-               sun4v_register_fault_status();
-       }
 
        /* Find available physical memory... */
        read_obp_memory("available", &pavail[0], &pavail_ents);

diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c
index 87f5cfce23bbccdd48f0fdc90e724c2abd224834..713cbac5f9bfbea06266334ad542f6e3b8b3d1d8 100644 (file)
--- a/arch/sparc64/prom/misc.c
+++ b/arch/sparc64/prom/misc.c
@@ -136,6 +136,11 @@ void prom_set_trap_table(unsigned long tba)
        p1275_cmd("SUNW,set-trap-table", P1275_INOUT(1, 0), tba);
 }
 
+void prom_set_trap_table_sun4v(unsigned long tba, unsigned long mmfsa)
+{
+       p1275_cmd("SUNW,set-trap-table", P1275_INOUT(2, 0), tba, mmfsa);
+}
+
 int prom_get_mmu_ihandle(void)
 {
        int node, ret;

diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 338b0ca5b5191c75c108e7310d6ac9c743393887..5a970f5ed9bd89ea2fc3d468c8246b0722aa2035 100644 (file)
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -156,13 +156,16 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
        nop;                                            \
        .previous;
 
-/* Clobbers TMP, current address space PGD phys address into DEST.  */
-#define TRAP_LOAD_PGD_PHYS(DEST, TMP)          \
+#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP)                \
        __GET_CPUID(TMP)                        \
        sethi   %hi(trap_block), DEST;          \
        sllx    TMP, TRAP_BLOCK_SZ_SHIFT, TMP;  \
        or      DEST, %lo(trap_block), DEST;    \
        add     DEST, TMP, DEST;                \
+
+/* Clobbers TMP, current address space PGD phys address into DEST.  */
+#define TRAP_LOAD_PGD_PHYS(DEST, TMP)          \
+       TRAP_LOAD_TRAP_BLOCK(DEST, TMP)         \
        ldx     [DEST + TRAP_PER_CPU_PGD_PADDR], DEST;
 
 /* Clobbers TMP, loads local processor's IRQ work area into DEST.  */
@@ -175,11 +178,8 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
 
 /* Clobbers TMP, loads DEST with current thread info pointer.  */
 #define TRAP_LOAD_THREAD_REG(DEST, TMP)                \
-       __GET_CPUID(TMP)                        \
-       sethi   %hi(trap_block), DEST;          \
-       sllx    TMP, TRAP_BLOCK_SZ_SHIFT, TMP;  \
-       or      DEST, %lo(trap_block), DEST;    \
-       ldx     [DEST + TMP], DEST;
+       TRAP_LOAD_TRAP_BLOCK(DEST, TMP)         \
+       ldx     [DEST + TRAP_PER_CPU_THREAD], DEST;
 
 /* Given the current thread info pointer in THR, load the per-cpu
  * area base of the current processor into DEST.  REG1, REG2, and REG3 are
@@ -201,13 +201,13 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
 
 #else
 
-#define __GET_CPUID(REG)                               \
-       mov     0, REG;
+#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP)                \
+       sethi   %hi(trap_block), DEST;          \
+       or      DEST, %lo(trap_block), DEST;    \
 
 /* Uniprocessor versions, we know the cpuid is zero.  */
 #define TRAP_LOAD_PGD_PHYS(DEST, TMP)          \
-       sethi   %hi(trap_block), DEST;          \
-       or      DEST, %lo(trap_block), DEST;    \
+       TRAP_LOAD_TRAP_BLOCK(DEST, TMP)         \
        ldx     [DEST + TRAP_PER_CPU_PGD_PADDR], DEST;
 
 #define TRAP_LOAD_IRQ_WORK(DEST, TMP)          \
@@ -215,8 +215,8 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
        or      DEST, %lo(__irq_work), DEST;
 
 #define TRAP_LOAD_THREAD_REG(DEST, TMP)                \
-       sethi   %hi(trap_block), DEST;          \
-       ldx     [DEST + %lo(trap_block)], DEST;
+       TRAP_LOAD_TRAP_BLOCK(DEST, TMP)         \
+       ldx     [DEST + TRAP_PER_CPU_THREAD], DEST;
 
 /* No per-cpu areas on uniprocessor, so no need to load DEST.  */
 #define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3)

diff --git a/include/asm-sparc64/oplib.h b/include/asm-sparc64/oplib.h
index 2ea545b931b0fa79ce254603fe0c4e5110828c64..ce5066ef2dd0eb38ae3110840d67e6a9680ef573 100644 (file)
--- a/include/asm-sparc64/oplib.h
+++ b/include/asm-sparc64/oplib.h
@@ -338,6 +338,7 @@ int cpu_find_by_mid(int mid, int *prom_node);
 
 /* Client interface level routines. */
 extern void prom_set_trap_table(unsigned long tba);
+extern void prom_set_trap_table_sun4v(unsigned long tba, unsigned long mmfsa);
 
 extern long p1275_cmd(const char *, long, ...);
                                   

diff --git a/include/asm-sparc64/ttable.h b/include/asm-sparc64/ttable.h
index 972f913709a33c1a4c7e1f6213876a46d223cd88..6bb86a7a5b423e81edbd951716c7e6d0532cce1c 100644 (file)
--- a/include/asm-sparc64/ttable.h
+++ b/include/asm-sparc64/ttable.h
@@ -180,25 +180,25 @@
 #define KPROBES_TRAP(lvl) TRAP_ARG(bad_trap, lvl)
 #endif
 
-#define SUN4V_ITSB_MISS                                \
-       mov     SCRATCHPAD_CPUID, %g1;          \
-       ldxa    [%g1] ASI_SCRATCHPAD, %g2;      \
-       ldxa    [%g1 + %g1] ASI_SCRATCHPAD, %g1;\
-       sethi   %hi(trap_block), %g5;           \
-       sllx    %g2, TRAP_BLOCK_SZ_SHIFT, %g2;  \
-       or      %g5, %lo(trap_block), %g5;      \
-       ba,pt   %xcc, sun4v_itsb_miss;          \
-        add    %g5, %g2, %g5;
+#define SUN4V_ITSB_MISS                                        \
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2;              \
+       ldx     [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4;    \
+       ldx     [%g2 + HV_FAULT_I_CTX_OFFSET], %g5;     \
+       srlx    %g4, 22, %g7;                           \
+       sllx    %g5, 48, %g6;                           \
+       brz,pn  %g5, kvmap_itlb_4v;                     \
+        or     %g6, %g7, %g6;                          \
+       ba,a,pt %xcc, sun4v_itsb_miss;
 
 #define SUN4V_DTSB_MISS                                \
-       mov     SCRATCHPAD_CPUID, %g1;          \
-       ldxa    [%g1] ASI_SCRATCHPAD, %g2;      \
-       ldxa    [%g1 + %g1] ASI_SCRATCHPAD, %g1;\
-       sethi   %hi(trap_block), %g5;           \
-       sllx    %g2, TRAP_BLOCK_SZ_SHIFT, %g2;  \
-       or      %g5, %lo(trap_block), %g5;      \
-       ba,pt   %xcc, sun4v_dtsb_miss;          \
-        add    %g5, %g2, %g5;
+       ldxa    [%g0] ASI_SCRATCHPAD, %g2;              \
+       ldx     [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4;    \
+       ldx     [%g2 + HV_FAULT_D_CTX_OFFSET], %g5;     \
+       srlx    %g4, 22, %g7;                           \
+       sllx    %g5, 48, %g6;                           \
+       brz,pn  %g5, kvmap_dtlb_4v;                     \
+        or     %g6, %g7, %g6;                          \
+       ba,a,pt %xcc, sun4v_dtsb_miss;
 
 /* Before touching these macros, you owe it to yourself to go and
  * see how arch/sparc64/kernel/winfixup.S works... -DaveM