diff options
| author | Marek Olšák <[email protected]> | 2018-09-05 20:11:34 -0400 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2018-09-07 15:48:31 -0400 |
| commit | ce432e259d0e73299b7a86b0732efd27340d995f (patch) | |
| tree | 526308a7197e9fe9a238d17482bc4e07775ac249 | |
| parent | a84fd58f48fa332b1c5a545d9b7e2440b8784656 (diff) | |
gallium/u_cpu_detect: fix parsing the CPU family
According to:
https://support.amd.com/TechDocs/54945_PPR_Family_17h_Models_00h-0Fh.pdf
Also Intel:
https://www.microbe.cz/docs/CPUID.pdf
Reviewed-by: Brian Paul <[email protected]>
| -rw-r--r-- | src/gallium/auxiliary/util/u_cpu_detect.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/util/u_cpu_detect.c b/src/gallium/auxiliary/util/u_cpu_detect.c index 93cf58011db..29f4ce98203 100644 --- a/src/gallium/auxiliary/util/u_cpu_detect.c +++ b/src/gallium/auxiliary/util/u_cpu_detect.c @@ -420,8 +420,9 @@ util_cpu_detect_once(void) cpuid (0x00000001, regs2); util_cpu_caps.x86_cpu_type = (regs2[0] >> 8) & 0xf; + /* Add "extended family". */ if (util_cpu_caps.x86_cpu_type == 0xf) - util_cpu_caps.x86_cpu_type = 8 + ((regs2[0] >> 20) & 255); /* use extended family (P4, IA64) */ + util_cpu_caps.x86_cpu_type += ((regs2[0] >> 20) & 0xff); /* general feature flags */ util_cpu_caps.has_tsc = (regs2[3] >> 4) & 1; /* 0x0000010 */ |