Re: [PATCH v2 02/10] target/ppc: Use MMUAccessType with *_handle_mmu_fault

[Greg Kurz <groug@kaod.org>]

On Mon, 21 Jun 2021 09:51:07 -0300
"Bruno Larsen (billionai)" <bruno.larsen@eldorado.org.br> wrote:

> From: Richard Henderson <richard.henderson@linaro.org>
> 
> These changes were waiting until we didn't need to match
> the function type of PowerPCCPUClass.handle_mmu_fault.
> 
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  target/ppc/mmu-hash32.c  | 7 ++-----
>  target/ppc/mmu-hash32.h  | 4 ++--
>  target/ppc/mmu-hash64.c  | 6 +-----
>  target/ppc/mmu-hash64.h  | 4 ++--
>  target/ppc/mmu-radix64.c | 7 ++-----
>  target/ppc/mmu-radix64.h | 4 ++--
>  6 files changed, 11 insertions(+), 21 deletions(-)
> 
> diff --git a/target/ppc/mmu-hash32.c b/target/ppc/mmu-hash32.c
> index 9f0a497657..8f19b43e47 100644
> --- a/target/ppc/mmu-hash32.c
> +++ b/target/ppc/mmu-hash32.c
> @@ -415,8 +415,8 @@ static hwaddr ppc_hash32_pte_raddr(target_ulong sr, ppc_hash_pte32_t pte,
>      return (rpn & ~mask) | (eaddr & mask);
>  }
>  
> -int ppc_hash32_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx,
> -                                int mmu_idx)
> +int ppc_hash32_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr,
> +                                MMUAccessType access_type, int mmu_idx)
>  {
>      CPUState *cs = CPU(cpu);
>      CPUPPCState *env = &cpu->env;
> @@ -425,11 +425,8 @@ int ppc_hash32_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx,
>      ppc_hash_pte32_t pte;
>      int prot;
>      int need_prot;
> -    MMUAccessType access_type;
>      hwaddr raddr;
>  
> -    assert((rwx == 0) || (rwx == 1) || (rwx == 2));
> -    access_type = rwx;
>      need_prot = prot_for_access_type(access_type);
>  
>      /* 1. Handle real mode accesses */
> diff --git a/target/ppc/mmu-hash32.h b/target/ppc/mmu-hash32.h
> index 898021f0d8..30e35718a7 100644
> --- a/target/ppc/mmu-hash32.h
> +++ b/target/ppc/mmu-hash32.h
> @@ -5,8 +5,8 @@
>  
>  hwaddr get_pteg_offset32(PowerPCCPU *cpu, hwaddr hash);
>  hwaddr ppc_hash32_get_phys_page_debug(PowerPCCPU *cpu, target_ulong addr);
> -int ppc_hash32_handle_mmu_fault(PowerPCCPU *cpu, vaddr address, int rw,
> -                                int mmu_idx);
> +int ppc_hash32_handle_mmu_fault(PowerPCCPU *cpu, vaddr address,
> +                                MMUAccessType access_type, int mmu_idx);
>  
>  /*
>   * Segment register definitions
> diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c
> index 708dffc31b..2febd369b1 100644
> --- a/target/ppc/mmu-hash64.c
> +++ b/target/ppc/mmu-hash64.c
> @@ -874,7 +874,7 @@ static int build_vrma_slbe(PowerPCCPU *cpu, ppc_slb_t *slb)
>  }
>  
>  int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr,
> -                                int rwx, int mmu_idx)
> +                                MMUAccessType access_type, int mmu_idx)
>  {
>      CPUState *cs = CPU(cpu);
>      CPUPPCState *env = &cpu->env;
> @@ -884,13 +884,9 @@ int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr,
>      hwaddr ptex;
>      ppc_hash_pte64_t pte;
>      int exec_prot, pp_prot, amr_prot, prot;
> -    MMUAccessType access_type;
>      int need_prot;
>      hwaddr raddr;
>  
> -    assert((rwx == 0) || (rwx == 1) || (rwx == 2));
> -    access_type = rwx;
> -
>      /*
>       * Note on LPCR usage: 970 uses HID4, but our special variant of
>       * store_spr copies relevant fields into env->spr[SPR_LPCR].
> diff --git a/target/ppc/mmu-hash64.h b/target/ppc/mmu-hash64.h
> index 4b8b8e7950..3e8a8eec1f 100644
> --- a/target/ppc/mmu-hash64.h
> +++ b/target/ppc/mmu-hash64.h
> @@ -8,8 +8,8 @@ void dump_slb(PowerPCCPU *cpu);
>  int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot,
>                    target_ulong esid, target_ulong vsid);
>  hwaddr ppc_hash64_get_phys_page_debug(PowerPCCPU *cpu, target_ulong addr);
> -int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr address, int rw,
> -                                int mmu_idx);
> +int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr address,
> +                                MMUAccessType access_type, int mmu_idx);
>  void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu,
>                                 target_ulong pte_index,
>                                 target_ulong pte0, target_ulong pte1);
> diff --git a/target/ppc/mmu-radix64.c b/target/ppc/mmu-radix64.c
> index b6d191c1d8..1c707d387d 100644
> --- a/target/ppc/mmu-radix64.c
> +++ b/target/ppc/mmu-radix64.c
> @@ -555,19 +555,16 @@ static int ppc_radix64_xlate(PowerPCCPU *cpu, vaddr eaddr,
>      return 0;
>  }
>  
> -int ppc_radix64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx,
> -                                 int mmu_idx)
> +int ppc_radix64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr,
> +                                 MMUAccessType access_type, int mmu_idx)
>  {
>      CPUState *cs = CPU(cpu);
>      CPUPPCState *env = &cpu->env;
>      int page_size, prot;
>      bool relocation;
> -    MMUAccessType access_type;
>      hwaddr raddr;
>  
>      assert(!(msr_hv && cpu->vhyp));
> -    assert((rwx == 0) || (rwx == 1) || (rwx == 2));
> -    access_type = rwx;
>  
>      relocation = (access_type == MMU_INST_FETCH ? msr_ir : msr_dr);
>      /* HV or virtual hypervisor Real Mode Access */
> diff --git a/target/ppc/mmu-radix64.h b/target/ppc/mmu-radix64.h
> index f28c5794d0..94bd72cb38 100644
> --- a/target/ppc/mmu-radix64.h
> +++ b/target/ppc/mmu-radix64.h
> @@ -44,8 +44,8 @@
>  
>  #ifdef TARGET_PPC64
>  
> -int ppc_radix64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx,
> -                                 int mmu_idx);
> +int ppc_radix64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr,
> +                                 MMUAccessType access_type, int mmu_idx);
>  hwaddr ppc_radix64_get_phys_page_debug(PowerPCCPU *cpu, target_ulong addr);
>  
>  static inline int ppc_radix64_get_prot_eaa(uint64_t pte)