Displaying 4 results from an estimated 4 matches for "preset_lpj".
2016 Oct 20
0
[PATCH] x86/vmware: Read tsc_khz only once - at boot time
...- VMWARE_PORT(GETHZ, eax, ebx, ecx, edx);
-
- tsc_hz = eax | (((uint64_t)ebx) << 32);
- do_div(tsc_hz, 1000);
- BUG_ON(tsc_hz >> 32);
- pr_info("TSC freq read from hypervisor : %lu.%03lu MHz\n",
- (unsigned long) tsc_hz / 1000,
- (unsigned long) tsc_hz % 1000);
-
- if (!preset_lpj) {
- lpj = ((u64)tsc_hz * 1000);
- do_div(lpj, HZ);
- preset_lpj = lpj;
- }
-
- return tsc_hz;
+ return vmware_tsc_khz;
}
static void __init vmware_platform_setup(void)
{
uint32_t eax, ebx, ecx, edx;
+ uint64_t lpj, tsc_khz;
VMWARE_PORT(GETHZ, eax, ebx, ecx, edx);
if (ebx != UINT_...
2016 Oct 20
0
[PATCH] x86/vmware: Read tsc_khz only once - at boot time
...- VMWARE_PORT(GETHZ, eax, ebx, ecx, edx);
-
- tsc_hz = eax | (((uint64_t)ebx) << 32);
- do_div(tsc_hz, 1000);
- BUG_ON(tsc_hz >> 32);
- pr_info("TSC freq read from hypervisor : %lu.%03lu MHz\n",
- (unsigned long) tsc_hz / 1000,
- (unsigned long) tsc_hz % 1000);
-
- if (!preset_lpj) {
- lpj = ((u64)tsc_hz * 1000);
- do_div(lpj, HZ);
- preset_lpj = lpj;
- }
-
- return tsc_hz;
+ return vmware_tsc_khz;
}
static void __init vmware_platform_setup(void)
{
uint32_t eax, ebx, ecx, edx;
+ uint64_t lpj, tsc_khz;
VMWARE_PORT(GETHZ, eax, ebx, ecx, edx);
if (ebx != UINT_...
2008 Jul 22
6
[PATCH 0/2] Paravirt loops per jiffy calculation
...en code to pvclock.c (since
we'll be doing the same calculation anyway), while the second, implements
functions for kvm that makes use of it.
Turns out that only implementing a pv get_tsc_khz is not enough, since
it will only do the right thing for cpu0, which is not what we desire.
So we set preset_lpj. Recall this code is run before arch parameter setup,
so if we pass lpj=xx in the command line, it'll still work.
Have a good (paravirtual) time!
2008 Jul 22
6
[PATCH 0/2] Paravirt loops per jiffy calculation
...en code to pvclock.c (since
we'll be doing the same calculation anyway), while the second, implements
functions for kvm that makes use of it.
Turns out that only implementing a pv get_tsc_khz is not enough, since
it will only do the right thing for cpu0, which is not what we desire.
So we set preset_lpj. Recall this code is run before arch parameter setup,
so if we pass lpj=xx in the command line, it'll still work.
Have a good (paravirtual) time!