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tcg: Add tlb_fast_offset to TCGContext

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Disconnect the layout of ArchCPU from TCG compilation.
Pass the relative offset of 'env' and 'neg.tlb.f' as a parameter.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-03-27 16:07:15 -07:00
parent 238f43809a
commit d0a9bb5ecb
14 changed files with 110 additions and 66 deletions
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7
tcg/ppc/tcg-target.c.inc
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@ -2036,6 +2036,9 @@ bool tcg_target_has_memory_bswap(MemOp memop)
return aa.atom <= MO_64;
}
/* We expect to use a 16-bit negative offset from ENV. */
#define MIN_TLB_MASK_TABLE_OFS -32768
/*
* For softmmu, perform the TLB load and compare.
* For useronly, perform any required alignment tests.
@ -2072,7 +2075,7 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h,
int mem_index = get_mmuidx(oi);
int cmp_off = is_ld ? offsetof(CPUTLBEntry, addr_read)
: offsetof(CPUTLBEntry, addr_write);
int fast_off = TLB_MASK_TABLE_OFS(mem_index);
int fast_off = tlb_mask_table_ofs(s, mem_index);
int mask_off = fast_off + offsetof(CPUTLBDescFast, mask);
int table_off = fast_off + offsetof(CPUTLBDescFast, table);
@ -2083,8 +2086,6 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h,
ldst->addrhi_reg = addrhi;
/* Load tlb_mask[mmu_idx] and tlb_table[mmu_idx]. */
QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) > 0);
QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) < -32768);
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_AREG0, mask_off);
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP2, TCG_AREG0, table_off);