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util: Fix warning in u_cpu_detect on non-x86

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regs is only set and used on x86; on other platforms (like ARM), this
code causes a trivial warning, solved by moving the regs declaration to
the architecture-dependent usage.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig 2018-11-11 11:09:40 -08:00 • committed by Matt Turner
parent 9c2a95b298
commit 41c8f99137
1 changed files with 2 additions and 2 deletions
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4
src/util/u_cpu_detect.c
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@ -370,14 +370,14 @@ check_os_arm_support(void)
static void
get_cpu_topology(void)
{
uint32_t regs[4];
/* Default. This is correct if L3 is not present or there is only one. */
util_cpu_caps.cores_per_L3 = util_cpu_caps.nr_cpus;
#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
/* AMD Zen */
if (util_cpu_caps.x86_cpu_type == 0x17) {
uint32_t regs[4];
/* Query the L3 cache topology information. */
cpuid_count(0x8000001D, 3, regs);
unsigned cache_level = (regs[0] >> 5) & 0x7;