Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Only Panther cheetah+ chips have POPC.
+8
-2
+8
-2
arch/sparc/kernel/setup_64.c
+8
-2
arch/sparc/kernel/setup_64.c
···
440
440
cap |= AV_SPARC_VIS;
441
441
if (tlb_type == cheetah || tlb_type == cheetah_plus)
442
442
cap |= AV_SPARC_VIS | AV_SPARC_VIS2;
443
-
if (tlb_type == cheetah_plus)
444
-
cap |= AV_SPARC_POPC;
443
+
if (tlb_type == cheetah_plus) {
444
+
unsigned long impl, ver;
445
+
446
+
__asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver));
447
+
impl = ((ver >> 32) & 0xffff);
448
+
if (impl == PANTHER_IMPL)
449
+
cap |= AV_SPARC_POPC;
450
+
}
445
451
if (tlb_type == hypervisor) {
446
452
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1)
447
453
cap |= AV_SPARC_ASI_BLK_INIT;