diff options
| author | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-23 12:55:11 +0000 |
|---|---|---|
| committer | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-23 12:55:11 +0000 |
| commit | 225b437649f6c883a10c295b9b93285e8dfef571 (patch) | |
| tree | aae0c7e222f22a0698c7e28985d59d60fa75fde4 /tcg/arm/tcg-target.c | |
| parent | bedba0cd074db0d581211056e52686ac4986afc6 (diff) | |
Fix qemu_ld/st for mem_index > 0 on arm host.
offsetof(CPUState, tlb_table[mem_index][0].addr_read) with mem_index > 0
was larger than max immediate offset for ldr and str (12-bit) so insert an
additional insn to add the mem_index offset.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4542 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'tcg/arm/tcg-target.c')
| -rw-r--r-- | tcg/arm/tcg-target.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 2333af811c..416573bbbc 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -849,8 +849,13 @@ static inline void tcg_out_qemu_ld(TCGContext *s, int cond, 0, 8, CPU_TLB_SIZE - 1); tcg_out_dat_reg(s, COND_AL, ARITH_ADD, 0, TCG_AREG0, 0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS)); +# define TLB_SHIFT (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS) + if (mem_index) + tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 0, 0, + (mem_index << (TLB_SHIFT & 1)) | + ((16 - (TLB_SHIFT >> 1)) << 8)); tcg_out_ld32_12(s, COND_AL, 1, 0, - offsetof(CPUState, tlb_table[mem_index][0].addr_read)); + offsetof(CPUState, tlb_table[0][0].addr_read)); tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, 1, 8, SHIFT_IMM_LSL(TARGET_PAGE_BITS)); /* TODO: alignment check? @@ -862,12 +867,12 @@ static inline void tcg_out_qemu_ld(TCGContext *s, int cond, /* XXX: possibly we could use a block data load or writeback in * the first access. */ tcg_out_ld32_12(s, COND_EQ, 1, 0, - offsetof(CPUState, tlb_table[mem_index][0].addr_read) + 4); + offsetof(CPUState, tlb_table[0][0].addr_read) + 4); tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0, 1, addr_reg2, SHIFT_IMM_LSL(0)); # endif tcg_out_ld32_12(s, COND_EQ, 1, 0, - offsetof(CPUState, tlb_table[mem_index][0].addend)); + offsetof(CPUState, tlb_table[0][0].addend)); switch (opc) { case 0: @@ -1015,8 +1020,12 @@ static inline void tcg_out_qemu_st(TCGContext *s, int cond, 0, 8, CPU_TLB_SIZE - 1); tcg_out_dat_reg(s, COND_AL, ARITH_ADD, 0, TCG_AREG0, 0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS)); + if (mem_index) + tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 0, 0, + (mem_index << (TLB_SHIFT & 1)) | + ((16 - (TLB_SHIFT >> 1)) << 8)); tcg_out_ld32_12(s, COND_AL, 1, 0, - offsetof(CPUState, tlb_table[mem_index][0].addr_write)); + offsetof(CPUState, tlb_table[0][0].addr_write)); tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, 1, 8, SHIFT_IMM_LSL(TARGET_PAGE_BITS)); /* TODO: alignment check? @@ -1028,13 +1037,13 @@ static inline void tcg_out_qemu_st(TCGContext *s, int cond, /* XXX: possibly we could use a block data load or writeback in * the first access. */ tcg_out_ld32_12(s, COND_EQ, 1, 0, - offsetof(CPUState, tlb_table[mem_index][0].addr_write) + offsetof(CPUState, tlb_table[0][0].addr_write) + 4); tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0, 1, addr_reg2, SHIFT_IMM_LSL(0)); # endif tcg_out_ld32_12(s, COND_EQ, 1, 0, - offsetof(CPUState, tlb_table[mem_index][0].addend)); + offsetof(CPUState, tlb_table[0][0].addend)); switch (opc) { case 0: |