| Message ID | 20230327162444.388-1-philmd@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [PATCH-for-8.0] linux-user/mips: Use P5600 as default CPU to run NaN2008 ELF binaries | expand |
On 3/27/23 09:24, Philippe Mathieu-Daudé wrote: > Per the release 6.06 revision history: > > 5.03 August 21, 2013 > > • ABS2008 and NAN2008 fields of Table 5.7 “FCSR RegisterField > Descriptions” were optional in release 3 and could be R/W, > but as of release 5 are required, read-only, and preset by > hardware. > > The P5600 core implements the release 5, and has the ABS2008 > and NAN2008 bits set in CP1_fcr31. Therefore it is able to run > ELF binaries compiled with EF_MIPS_NAN2008, such the CIP United > Debian NaN2008 distribution: > http://repo.oss.cipunited.com/mipsel-nan2008/README.txt > > In order to run such compiled binaries, select by default the > P5600 core when the ELF 'MIPS_NAN2008' flag is set. > > Reported-by: Jiaxun Yang<jiaxun.yang@flygoat.com> > Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org> > --- > linux-user/mips/target_elf.h | 3 +++ > 1 file changed, 3 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
Le 27/03/2023 à 18:24, Philippe Mathieu-Daudé a écrit : > Per the release 6.06 revision history: > > 5.03 August 21, 2013 > > • ABS2008 and NAN2008 fields of Table 5.7 “FCSR RegisterField > Descriptions” were optional in release 3 and could be R/W, > but as of release 5 are required, read-only, and preset by > hardware. > > The P5600 core implements the release 5, and has the ABS2008 > and NAN2008 bits set in CP1_fcr31. Therefore it is able to run > ELF binaries compiled with EF_MIPS_NAN2008, such the CIP United > Debian NaN2008 distribution: > http://repo.oss.cipunited.com/mipsel-nan2008/README.txt > > In order to run such compiled binaries, select by default the > P5600 core when the ELF 'MIPS_NAN2008' flag is set. > > Reported-by: Jiaxun Yang <jiaxun.yang@flygoat.com> > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> > --- > linux-user/mips/target_elf.h | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/linux-user/mips/target_elf.h b/linux-user/mips/target_elf.h > index a98c9bd6ad..b965e86b2b 100644 > --- a/linux-user/mips/target_elf.h > +++ b/linux-user/mips/target_elf.h > @@ -15,6 +15,9 @@ static inline const char *cpu_get_model(uint32_t eflags) > if ((eflags & EF_MIPS_MACH) == EF_MIPS_MACH_5900) { > return "R5900"; > } > + if (eflags & EF_MIPS_NAN2008) { > + return "P5600"; > + } > return "24Kf"; > } > #endif Acked-by: Laurent Vivier <laurent@vivier.eu>
On 27/3/23 18:24, Philippe Mathieu-Daudé wrote: > Per the release 6.06 revision history: > > 5.03 August 21, 2013 > > • ABS2008 and NAN2008 fields of Table 5.7 “FCSR RegisterField > Descriptions” were optional in release 3 and could be R/W, > but as of release 5 are required, read-only, and preset by > hardware. > > The P5600 core implements the release 5, and has the ABS2008 > and NAN2008 bits set in CP1_fcr31. Therefore it is able to run > ELF binaries compiled with EF_MIPS_NAN2008, such the CIP United > Debian NaN2008 distribution: > http://repo.oss.cipunited.com/mipsel-nan2008/README.txt > > In order to run such compiled binaries, select by default the > P5600 core when the ELF 'MIPS_NAN2008' flag is set. > > Reported-by: Jiaxun Yang <jiaxun.yang@flygoat.com> > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> > --- > linux-user/mips/target_elf.h | 3 +++ > 1 file changed, 3 insertions(+) Patch queued.
diff --git a/linux-user/mips/target_elf.h b/linux-user/mips/target_elf.h index a98c9bd6ad..b965e86b2b 100644 --- a/linux-user/mips/target_elf.h +++ b/linux-user/mips/target_elf.h @@ -15,6 +15,9 @@ static inline const char *cpu_get_model(uint32_t eflags) if ((eflags & EF_MIPS_MACH) == EF_MIPS_MACH_5900) { return "R5900"; } + if (eflags & EF_MIPS_NAN2008) { + return "P5600"; + } return "24Kf"; } #endif
Per the release 6.06 revision history: 5.03 August 21, 2013 • ABS2008 and NAN2008 fields of Table 5.7 “FCSR RegisterField Descriptions” were optional in release 3 and could be R/W, but as of release 5 are required, read-only, and preset by hardware. The P5600 core implements the release 5, and has the ABS2008 and NAN2008 bits set in CP1_fcr31. Therefore it is able to run ELF binaries compiled with EF_MIPS_NAN2008, such the CIP United Debian NaN2008 distribution: http://repo.oss.cipunited.com/mipsel-nan2008/README.txt In order to run such compiled binaries, select by default the P5600 core when the ELF 'MIPS_NAN2008' flag is set. Reported-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- linux-user/mips/target_elf.h | 3 +++ 1 file changed, 3 insertions(+)