Re: [PATCH 36/43] target/ppc/mmu-hash32: Remove some static inlines from header

["Nicholas Piggin" <npiggin@gmail.com>]

On Mon May 27, 2024 at 9:13 AM AEST, BALATON Zoltan wrote:
> Two of these are not used anywhere and the other two are used only
> once and can be inlined and removed from the header.

I'd prefer to put these in the .c file. Probably calculating the
base once would generate marginally better code since it would not
have to keep reloading it (since there is a barrier there it can't
cache the value).

Thanks,
Nick

>
> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
> ---
>  target/ppc/mmu-hash32.c |  5 +++--
>  target/ppc/mmu-hash32.h | 32 --------------------------------
>  2 files changed, 3 insertions(+), 34 deletions(-)
>
> diff --git a/target/ppc/mmu-hash32.c b/target/ppc/mmu-hash32.c
> index a2c0ac05d2..7a6a674f8a 100644
> --- a/target/ppc/mmu-hash32.c
> +++ b/target/ppc/mmu-hash32.c
> @@ -206,17 +206,18 @@ static hwaddr ppc_hash32_pteg_search(PowerPCCPU *cpu, hwaddr pteg_off,
>  {
>      hwaddr pte_offset = pteg_off;
>      target_ulong pte0, pte1;
> +    hwaddr base = ppc_hash32_hpt_base(cpu);
>      int i;
>  
>      for (i = 0; i < HPTES_PER_GROUP; i++) {
> -        pte0 = ppc_hash32_load_hpte0(cpu, pte_offset);
> +        pte0 = ldl_phys(CPU(cpu)->as, base + pte_offset);
>          /*
>           * pte0 contains the valid bit and must be read before pte1,
>           * otherwise we might see an old pte1 with a new valid bit and
>           * thus an inconsistent hpte value
>           */
>          smp_rmb();
> -        pte1 = ppc_hash32_load_hpte1(cpu, pte_offset);
> +        pte1 = ldl_phys(CPU(cpu)->as, base + pte_offset + HASH_PTE_SIZE_32 / 2);
>  
>          if ((pte0 & HPTE32_V_VALID)
>              && (secondary == !!(pte0 & HPTE32_V_SECONDARY))
> diff --git a/target/ppc/mmu-hash32.h b/target/ppc/mmu-hash32.h
> index 2838de031c..4db55fb0a0 100644
> --- a/target/ppc/mmu-hash32.h
> +++ b/target/ppc/mmu-hash32.h
> @@ -69,38 +69,6 @@ static inline hwaddr ppc_hash32_hpt_mask(PowerPCCPU *cpu)
>      return ((cpu->env.spr[SPR_SDR1] & SDR_32_HTABMASK) << 16) | 0xFFFF;
>  }
>  
> -static inline target_ulong ppc_hash32_load_hpte0(PowerPCCPU *cpu,
> -                                                 hwaddr pte_offset)
> -{
> -    target_ulong base = ppc_hash32_hpt_base(cpu);
> -
> -    return ldl_phys(CPU(cpu)->as, base + pte_offset);
> -}
> -
> -static inline target_ulong ppc_hash32_load_hpte1(PowerPCCPU *cpu,
> -                                                 hwaddr pte_offset)
> -{
> -    target_ulong base = ppc_hash32_hpt_base(cpu);
> -
> -    return ldl_phys(CPU(cpu)->as, base + pte_offset + HASH_PTE_SIZE_32 / 2);
> -}
> -
> -static inline void ppc_hash32_store_hpte0(PowerPCCPU *cpu,
> -                                          hwaddr pte_offset, target_ulong pte0)
> -{
> -    target_ulong base = ppc_hash32_hpt_base(cpu);
> -
> -    stl_phys(CPU(cpu)->as, base + pte_offset, pte0);
> -}
> -
> -static inline void ppc_hash32_store_hpte1(PowerPCCPU *cpu,
> -                                          hwaddr pte_offset, target_ulong pte1)
> -{
> -    target_ulong base = ppc_hash32_hpt_base(cpu);
> -
> -    stl_phys(CPU(cpu)->as, base + pte_offset + HASH_PTE_SIZE_32 / 2, pte1);
> -}
> -
>  static inline hwaddr get_pteg_offset32(PowerPCCPU *cpu, hwaddr hash)
>  {
>      return (hash * HASH_PTEG_SIZE_32) & ppc_hash32_hpt_mask(cpu);