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update detectAMDProcessor to detect znver4

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This commit is contained in:
Andrew Kelley 2024-04-28 20:22:23 -07:00
parent 78002dbe47
commit 3c21db6392
1 changed files with 34 additions and 88 deletions
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122
lib/std/zig/system/x86.zig
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@ -58,7 +58,7 @@ pub fn detectNativeCpuAndFeatures(arch: Target.Cpu.Arch, os: Target.Os, query: T
detectIntelProcessor(&cpu, family, model, brand_id);
},
0x68747541 => {
detectAMDProcessor(&cpu, family, model);
if (detectAMDProcessor(cpu.features, family, model)) |m| cpu.model = m;
},
else => {},
}
@ -224,97 +224,43 @@ fn detectIntelProcessor(cpu: *Target.Cpu, family: u32, model: u32, brand_id: u32
}
}
fn detectAMDProcessor(cpu: *Target.Cpu, family: u32, model: u32) void {
// AMD's cpuid information is less than optimal for determining a CPU model.
// This is very unscientific, and not necessarily correct.
switch (family) {
4 => {
cpu.model = &Target.x86.cpu.i486;
return;
fn detectAMDProcessor(features: Target.Cpu.Feature.Set, family: u32, model: u32) ?*const Target.Cpu.Model {
return switch (family) {
4 => &Target.x86.cpu.i486,
5 => switch (model) {
6, 7 => &Target.x86.cpu.k6,
8 => &Target.x86.cpu.k6_2,
9, 13 => &Target.x86.cpu.k6_3,
10 => &Target.x86.cpu.geode,
else => &Target.x86.cpu.pentium,
},
5 => {
cpu.model = &Target.x86.cpu.pentium;
switch (model) {
6, 7 => {
cpu.model = &Target.x86.cpu.k6;
return;
},
8 => {
cpu.model = &Target.x86.cpu.k6_2;
return;
},
9, 13 => {
cpu.model = &Target.x86.cpu.k6_3;
return;
},
10 => {
cpu.model = &Target.x86.cpu.geode;
return;
},
else => {},
}
return;
6 => if (Target.x86.featureSetHas(features, .sse))
&Target.x86.cpu.athlon_xp
else
&Target.x86.cpu.athlon,
15 => if (Target.x86.featureSetHas(features, .sse3))
&Target.x86.cpu.k8_sse3
else
&Target.x86.cpu.k8,
16 => &Target.x86.cpu.amdfam10,
20 => &Target.x86.cpu.btver1,
21 => switch (model) {
0x60...0x7f => &Target.x86.cpu.bdver4,
0x30...0x3f => &Target.x86.cpu.bdver3,
0x02, 0x10...0x1f => &Target.x86.cpu.bdver2,
else => &Target.x86.cpu.bdver1,
},
6 => {
if (Target.x86.featureSetHas(cpu.features, .sse)) {
cpu.model = &Target.x86.cpu.athlon_xp;
return;
}
cpu.model = &Target.x86.cpu.athlon;
return;
22 => &Target.x86.cpu.btver2,
23 => switch (model) {
0x30...0x3f, 0x71 => &Target.x86.cpu.znver2,
else => &Target.x86.cpu.znver1,
},
15 => {
if (Target.x86.featureSetHas(cpu.features, .sse3)) {
cpu.model = &Target.x86.cpu.k8_sse3;
return;
}
cpu.model = &Target.x86.cpu.k8;
return;
25 => switch (model) {
0x10...0x1f, 0x60...0x6f, 0x70...0x77, 0x78...0x7f, 0xa0...0xaf => &Target.x86.cpu.znver4,
else => &Target.x86.cpu.znver3,
},
16 => {
cpu.model = &Target.x86.cpu.amdfam10;
return;
},
20 => {
cpu.model = &Target.x86.cpu.btver1;
return;
},
21 => {
cpu.model = &Target.x86.cpu.bdver1;
if (model >= 0x60 and model <= 0x7f) {
cpu.model = &Target.x86.cpu.bdver4;
return;
}
if (model >= 0x30 and model <= 0x3f) {
cpu.model = &Target.x86.cpu.bdver3;
return;
}
if ((model >= 0x10 and model <= 0x1f) or model == 0x02) {
cpu.model = &Target.x86.cpu.bdver2;
return;
}
return;
},
22 => {
cpu.model = &Target.x86.cpu.btver2;
return;
},
23 => {
cpu.model = &Target.x86.cpu.znver1;
if ((model >= 0x30 and model <= 0x3f) or model == 0x71) {
cpu.model = &Target.x86.cpu.znver2;
return;
}
return;
},
25 => {
cpu.model = &Target.x86.cpu.znver3;
return;
},
else => {
return;
},
}
else => null,
};
}
fn detectNativeFeatures(cpu: *Target.Cpu, os_tag: Target.Os.Tag) void {