On Fri, Sep 23, 2022 at 06:35:52PM +0800, Zhenyu Zhang wrote:
Of course, you can check Neoverse N1 core "0xd0c" from the link below. Also do you think I should add the values for neoverse n2 and v1 at the same time?
Might just as well.
https://developer.arm.com/documentation/100616/0301/register-descriptions/aarch64-system-registers/midr-el1--main-id-register--el1
Thanks, I still can't find that Ampere is 0x71.
On Tue, Sep 20, 2022 at 8:38 PM Martin Kletzander <mkletzan@xxxxxxxxxx> wrote:On Tue, Sep 13, 2022 at 10:10:02PM -0400, Zhenyu Zhang wrote: >Add Neoverse-N1 as a supported cpu model. > I would like to review this patch, but I could not find the vendor ID in any official documentation. I know I am bad at searching, but the only thing I could find was that Ampere vendor uses "0xc0" as the value and part values for neoverse n1/n2/v1 which ought to be "0xd0c", "0xd49" and "0xd40" respectively. It could speed up the review if you included some pointer to a technical specification or something that would make it easier to check. >Signed-off-by: Zhang Zhenyu <zhenyzha@xxxxxxxxxx> >--- > src/cpu_map/arm_neoverse-n1.xml | 6 ++++++ > src/cpu_map/arm_vendors.xml | 1 + > src/cpu_map/index.xml | 3 +++ > src/cpu_map/meson.build | 1 + > 4 files changed, 11 insertions(+) > create mode 100644 src/cpu_map/arm_neoverse-n1.xml > >diff --git a/src/cpu_map/arm_neoverse-n1.xml b/src/cpu_map/arm_neoverse-n1.xml >new file mode 100644 >index 0000000000..14c7f7c300 >--- /dev/null >+++ b/src/cpu_map/arm_neoverse-n1.xml >@@ -0,0 +1,6 @@ >+<cpus> >+ <model name='Neoverse-N1'> >+ <vendor name='Ampere'/> >+ <pvr value='0xd0c'/> >+ </model> >+</cpus> >diff --git a/src/cpu_map/arm_vendors.xml b/src/cpu_map/arm_vendors.xml >index 92d10565f4..a9a945584b 100644 >--- a/src/cpu_map/arm_vendors.xml >+++ b/src/cpu_map/arm_vendors.xml >@@ -13,4 +13,5 @@ > <vendor name='Marvell' value='0x56'/> > <vendor name='Intel' value='0x69'/> > <vendor name='Phytium' value='0x70'/> >+ <vendor name='Ampere' value='0x71'/> > </cpus> >diff --git a/src/cpu_map/index.xml b/src/cpu_map/index.xml >index d533a28865..2419fa0a64 100644 >--- a/src/cpu_map/index.xml >+++ b/src/cpu_map/index.xml >@@ -98,6 +98,9 @@ > <include filename='arm_cortex-a57.xml'/> > <include filename='arm_cortex-a72.xml'/> > >+ <!-- Ampere-based CPU models --> >+ <include filename='arm_neoverse-n1.xml'/> >+ > <!-- Qualcomm-based CPU models --> > <include filename='arm_Falkor.xml'/> > >diff --git a/src/cpu_map/meson.build b/src/cpu_map/meson.build >index 99264289e2..c8f2e36eea 100644 >--- a/src/cpu_map/meson.build >+++ b/src/cpu_map/meson.build >@@ -7,6 +7,7 @@ cpumap_data = [ > 'arm_FT-2000plus.xml', > 'arm_features.xml', > 'arm_Kunpeng-920.xml', >+ 'arm_neoverse-n1.xml', > 'arm_Tengyun-S2500.xml', > 'arm_ThunderX299xx.xml', > 'arm_vendors.xml', >-- >2.31.1 >
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