Commits fdfba1a2,
2c17449b and
f606604f added usages of ENV_GET_CPU()
macro in target-specific code.

Use sparc_env_get_cpu() instead and reuse the variables.

Cc: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndreas Färber <afaerber@suse.de>

The LEON3 processor has support for the CASA instruction which is
normally only available for SPARC V9 processors.  Binutils 2.24
and GCC 4.9 will support this instruction for LEON3.  GCC uses it to
generate C11 atomic operations.

The CAS synthetic instruction uses an ASI of 0x80.  If TARGET_SPARC64 is
not defined use a supervisor data load/store for an ASI of 0x80 in
helper_ld_asi()/helper_st_asi().  The supervisor data load/store was
choosen according to the LEON3 documentation.

The ASI 0x80 is defined in the SPARC V9 manual, Table 12—Address Space
Identifiers (ASIs).  Here we have: 0x80, ASI_PRIMARY, Unrestricted
access, Primary address space.

Tested with the following program:

  #include <assert.h>
  #include <stdatomic.h>

  void test(void)
  {
    atomic_int a;
    int e;
    _Bool b;

    atomic_store(&a, 1);
    e = 1;
    b = atomic_compare_exchange_strong(&a, &e, 2);
    assert(b);
    assert(atomic_load(&a) == 2);

    atomic_store(&a, 3);
    e = 4;
    b = atomic_compare_exchange_strong(&a, &e, 5);
    assert(!b);
    assert(atomic_load(&a) == 3);
  }

Tested also on a NGMP board with a LEON4 processor.
Reviewed-by: NFabien Chouteau <chouteau@adacore.com>
Reviewed-by: NAndreas Färber <afaerber@suse.de>
Tested-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NSebastian Huber <sebastian.huber@embedded-brains.de>
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

Use it for all targets, but be careful not to pass invalid CPUState.
cpu_single_env can be NULL, e.g. on Xen.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

This patch adds SPARC ASI mappings that are used by the LEON processor.It also
corrects the MMU context register and context table pointer mask of the LEON3.
Signed-off-by: NRonald Hecht <ronald.hecht@gmx.de>
Signed-off-by: NFabien Chouteau <chouteau@adacore.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Refactor common code around calls to cpu_restore_state().

tb_find_pc() has now no external users, make it static.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are
reserved) and its purpose doesn't match the name (most target_phys_addr_t
addresses are not target specific).  Replace it with a finger-friendly,
standards conformant hwaddr.

Outstanding patchsets can be fixed up with the command

  git rebase -i --exec 'find -name "*.[ch]"
                        | xargs s/target_phys_addr_t/hwaddr/g' origin
Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The branches around the exception are maintaining an otherwise
unnecessary use of local temps for the cpu destination.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Use LOG_UNIMP for some target CPU cases.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
Acked-by: NAlexander Graf <agraf@suse.de>

Fix UltraSPARC/JPS1/UA2007 VIS block load instructions broken in
30038fd8.
Signed-off-by: NArtyom Tarasenko <atar4qemu@gmail.com>
[blauwirbel@gmail.com: trimmed unwanted part of patch]
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Use uintptr_t instead of void * or unsigned long in
several op related functions, env->mem_io_pc and
GETPC() macro.
Reviewed-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Adjust generation of load and store templates so that the functions
take a parameter for CPUState instead of relying on global env.

Remove wrappers. Move remaining memory helpers to ldst_helper.c.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make memory access helpers take a parameter for CPUState instead
of relying on global env. Introduce wrappers for load and store ops.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Generate correct trap for external interrupts. Map PCI and ISA IRQs to
RIC/UltraSPARC-IIi interrupt vectors.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Scripted conversion:
  sed -i "s/CPUState/CPUSPARCState/g" target-sparc/*.[hc]
  sed -i "s/#define CPUSPARCState/#define CPUState/" target-sparc/cpu.h
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NAnthony Liguori <aliguori@us.ibm.com>

This allows a more efficient representation for 64-bit hosts.
It should be about the same for 32-bit hosts, as we can still
access the individual pieces of the double.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Move load and store op helpers top ldst_helper.c.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make [su]div{,cc} helpers take a parameter for CPUState instead
of relying on global env. Move the functions to helper.c.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make softint op helpers and Leon cache irq manager take a parameter
for CPUState instead of relying on global env. Move the functions
to int{32,64}_helper.c.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move CWP and PSTATE op helpers to win_helper.c.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make lazy condition code helpers take a parameter for CPUState instead
of relying on global env.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move lazy condition code handling op helpers to cc_helper.c.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move FPU op helpers to fop_helper.c. Move VIS op helpers to vis_helper.c,
compile it only for Sparc64.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Before the next patches, fix coding style of the areas affected.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make raise_exception() and helper_debug() take a parameter for
CPUState instead of relying on global env. Move the functions
to helper.c.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

These functions don't need access to CPUState or already pass it,
so relocating them from op_helper.c to helper.c and int64_helper.c
is trivial.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move CPU init to cpu_init.c and interrupt handling to int32_helper.c
for Sparc32 and int64_helper.c for Sparc64.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Pass CPUState pointer to tlb_fill() instead of architecture local
cpu_single_env hacks.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Remove a useless variable, spotted by clang analyzer:
/src/qemu/target-sparc/op_helper.c:3904:18: warning: unused variable 'tmp' [-Wunused-variable]
    target_ulong tmp = val;
The error message is actually incorrect since the variable is used.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Parameter is_softmmu (and its evil mutant twin brother is_softmuu)
is not used in cpu_*_handle_mmu_fault() functions, remove them
and adjust callers.
Acked-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>