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12 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
85795187f4 target/arm/vfp_helper: Call set_fpscr_to_host before updating to FPSCR 
In commit e9d652824b we extracted the vfp_set_fpscr_to_host()
function but failed at calling it in the correct place, we call
it after xregs[ARM_VFP_FPSCR] is modified.

Fix by calling this function before we update FPSCR.

Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20190705124318.1075-1-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-07-08 14:11:31 +01:00
Philippe Mathieu-Daudé
4a15527c9f target/arm/vfp_helper: Restrict the SoftFloat use to TCG 
This code is specific to the SoftFloat floating-point
implementation, which is only used by TCG.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190701132516.26392-18-philmd@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-07-01 17:29:01 +01:00
Philippe Mathieu-Daudé
0c6ad94809 target/arm/vfp_helper: Extract vfp_set_fpscr_from_host() 
The vfp_set_fpscr() helper contains code specific to the host
floating point implementation (here the SoftFloat library).
Extract this code to vfp_set_fpscr_from_host().

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190701132516.26392-17-philmd@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-07-01 17:29:01 +01:00
Philippe Mathieu-Daudé
e9d652824b target/arm/vfp_helper: Extract vfp_set_fpscr_to_host() 
The vfp_set_fpscr() helper contains code specific to the host
floating point implementation (here the SoftFloat library).
Extract this code to vfp_set_fpscr_to_host().

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190701132516.26392-16-philmd@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-07-01 17:29:01 +01:00
Philippe Mathieu-Daudé
20e62dd8c8 target/arm/vfp_helper: Move code around 
To ease the review of the next commit,
move the vfp_exceptbits_to_host() function directly after
vfp_exceptbits_from_host().  Amusingly the diff shows we
are moving vfp_get_fpscr().

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190701132516.26392-15-philmd@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-07-01 17:29:01 +01:00
Philippe Mathieu-Daudé
9798ac7162 target/arm: Fix coding style issues 
Since we'll move this code around, fix its style first.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190701132516.26392-9-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-07-01 17:29:00 +01:00
Philippe Mathieu-Daudé
9a223097e4 target/arm: Fix multiline comment syntax 
Since commit 8c06fbdf36 checkpatch.pl enforce a new multiline
comment syntax. Since we'll move this code around, fix its style
first.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190701132516.26392-8-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-07-01 17:29:00 +01:00
Richard Henderson
2fc0cc0e1e target/arm: Use env_cpu, env_archcpu 
Cleanup in the boilerplate that each target must define.
Replace arm_env_get_cpu with env_archcpu.  The combination
CPU(arm_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2019-06-10 07:03:34 -07:00
Peter Maydell
5bcf8ed940 target/arm: Make sure M-profile FPSCR RES0 bits are not settable 
Enforce that for M-profile various FPSCR bits which are RES0 there
but have defined meanings on A-profile are never settable. This
ensures that M-profile code can't enable the A-profile behaviour
(notably vector length/stride handling) by accident.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190416125744.27770-2-peter.maydell@linaro.org
 2019-04-29 17:35:58 +01:00
Richard Henderson
6bea25631a target/arm: Implement ARMv8.5-FRINT 
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190301200501.16533-11-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-03-05 15:55:08 +00:00
Richard Henderson
6c1f6f2733 target/arm: Implement ARMv8.3-JSConv 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190215192302.27855-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fixed a couple of comment typos]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-02-21 18:17:46 +00:00
Richard Henderson
37356079fc target/arm: Split out vfp_helper.c 
Move all of the fp helpers out of helper.c into a new file.
This is code movement only.  Since helper.c has no copyright
header, take the one from cpu.h for the new file.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190215192302.27855-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2019-02-21 18:17:45 +00:00