Alex Bennée writes:
> Nikunj A Dadhania writes:
>
>> Richard Henderson writes:
>>
>>> On 09/12/2016 06:47 AM, Alex Bennée wrote:
> > +/* Notice an IO access, or a notdirty page. */
> > +if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
> > +/* There's really nothing tha
Alex Bennée writes:
> Nikunj A Dadhania writes:
>
>> Richard Henderson writes:
>>
>>> On 09/12/2016 06:47 AM, Alex Bennée wrote:
> > +/* Notice an IO access, or a notdirty page. */
> > +if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
> > +/* There's really nothing tha
Nikunj A Dadhania writes:
> Richard Henderson writes:
>
>> On 09/12/2016 06:47 AM, Alex Bennée wrote:
> +/* Notice an IO access, or a notdirty page. */
> +if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
> +/* There's really nothing that can be done to
> +
Richard Henderson writes:
> On 09/12/2016 06:47 AM, Alex Bennée wrote:
>>> > +/* Notice an IO access, or a notdirty page. */
>>> > +if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
>>> > +/* There's really nothing that can be done to
>>> > + support this apart from stop-th
Richard Henderson writes:
> On 09/13/2016 10:06 AM, Alex Bennée wrote:
>> I get a failure when building on centos6, x86:
>>
>> CCaarch64-softmmu/tcg/tcg-op.o
>> /home/alex/lsrc/qemu.git/tcg/tcg-op.c:2280: error:
>> ‘gen_helper_atomic_fetch_addb’ undeclared here (not in a function)
>> /hom
On 09/12/2016 06:47 AM, Alex Bennée wrote:
>> > +/* Notice an IO access, or a notdirty page. */
>> > +if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
>> > +/* There's really nothing that can be done to
>> > + support this apart from stop-the-world. */
>> > +goto st
On 09/13/2016 10:06 AM, Alex Bennée wrote:
> I get a failure when building on centos6, x86:
>
> CCaarch64-softmmu/tcg/tcg-op.o
> /home/alex/lsrc/qemu.git/tcg/tcg-op.c:2280: error:
> ‘gen_helper_atomic_fetch_addb’ undeclared here (not in a function)
> /home/alex/lsrc/qemu.git/tcg/tcg-op.c:22
Richard Henderson writes:
> Add all of cmpxchg, op_fetch, fetch_op, and xchg.
> Handle both endian-ness, and sizes up to 8.
> Handle expanding non-atomically, when emulating in serial.
>
> Signed-off-by: Richard Henderson
> ---
> Makefile.objs | 1 -
> Makefile.target | 1 +
>
On Mon, Sep 12, 2016 at 09:13:10AM -0700, Richard Henderson wrote:
> On 09/12/2016 12:59 AM, Leon Alrae wrote:
> >On Fri, Sep 09, 2016 at 09:26:29AM -0700, Richard Henderson wrote:
> >>On 09/09/2016 07:46 AM, Leon Alrae wrote:
> >>>Wouldn't it be useful if tcg.h provided also aliases for _le/_be at
On 09/12/2016 12:59 AM, Leon Alrae wrote:
On Fri, Sep 09, 2016 at 09:26:29AM -0700, Richard Henderson wrote:
On 09/09/2016 07:46 AM, Leon Alrae wrote:
Wouldn't it be useful if tcg.h provided also aliases for _le/_be atomic
helpers (equivalent to helper_ret_X_mmu) so that in target-* code we wou
Richard Henderson writes:
> Add all of cmpxchg, op_fetch, fetch_op, and xchg.
> Handle both endian-ness, and sizes up to 8.
> Handle expanding non-atomically, when emulating in serial.
>
> Signed-off-by: Richard Henderson
>
> +/* Probe for a read-modify-write atomic operation. Do not allow un
On Fri, Sep 09, 2016 at 09:26:29AM -0700, Richard Henderson wrote:
> On 09/09/2016 07:46 AM, Leon Alrae wrote:
> >Wouldn't it be useful if tcg.h provided also aliases for _le/_be atomic
> >helpers (equivalent to helper_ret_X_mmu) so that in target-* code we wouldn't
> >need to care about the endian
On 09/09/2016 07:46 AM, Leon Alrae wrote:
Wouldn't it be useful if tcg.h provided also aliases for _le/_be atomic
helpers (equivalent to helper_ret_X_mmu) so that in target-* code we wouldn't
need to care about the endianness (specifically I'm thinking about SC in MIPS
where I need to select betw
On Sat, Sep 03, 2016 at 09:39:41PM +0100, Richard Henderson wrote:
> --- a/tcg/tcg.h
> +++ b/tcg/tcg.h
> @@ -1175,6 +1175,59 @@ uint64_t helper_be_ldq_cmmu(CPUArchState *env,
> target_ulong addr,
> # define helper_ret_ldq_cmmu helper_le_ldq_cmmu
> #endif
>
> +uint32_t helper_atomic_cmpxchgb_m
> +#define GEN_ATOMIC_HELPER(NAME, OP, NEW)\
> +static void * const table_##NAME[16] = {\
> +[MO_8] = gen_helper_atomic_##NAME##b, \
> +[MO_16 | MO_LE] = gen_helper_atomic_##NAME##w_le,
Add all of cmpxchg, op_fetch, fetch_op, and xchg.
Handle both endian-ness, and sizes up to 8.
Handle expanding non-atomically, when emulating in serial.
Signed-off-by: Richard Henderson
---
Makefile.objs | 1 -
Makefile.target | 1 +
atomic_template.h | 173
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