tcg: Add page_bits and page_mask to TCGContext

Disconnect guest page size from TCG compilation.
While this could be done via exec/target_page.h, we want to cache
the value across multiple memory access operations, so we might
as well initialize this early.

The changes within tcg/ are entirely mechanical:

    sed -i s/TARGET_PAGE_BITS/s->page_bits/g
    sed -i s/TARGET_PAGE_MASK/s->page_mask/g

Reviewed-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-03-23 21:06:22 -07:00
parent c31e5fa44d
commit aece72b76b
11 changed files with 38 additions and 29 deletions

View file

@ -1056,7 +1056,7 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h,
/* Extract the page index, shifted into place for tlb index. */
tcg_out_arithi(s, TCG_REG_T1, addr_reg,
TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, SHIFT_SRL);
s->page_bits - CPU_TLB_ENTRY_BITS, SHIFT_SRL);
tcg_out_arith(s, TCG_REG_T1, TCG_REG_T1, TCG_REG_T2, ARITH_AND);
/* Add the tlb_table pointer, creating the CPUTLBEntry address into R2. */
@ -1068,7 +1068,7 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h,
h->base = TCG_REG_T1;
/* Mask out the page offset, except for the required alignment. */
compare_mask = TARGET_PAGE_MASK | a_mask;
compare_mask = s->page_mask | a_mask;
if (check_fit_tl(compare_mask, 13)) {
tcg_out_arithi(s, TCG_REG_T3, addr_reg, compare_mask, ARITH_AND);
} else {