perf/x86/intel: Increase max number of the fixed counters

mainline inclusion
from mainline-v5.18-rc1
commit ee28855a
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8WXIM
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee28855a54493ce83bc2a3fbe30210be61b57bc7



-------------------------------------

The new PEBS format 5 implies that the number of the fixed counters can
be up to 16. The current INTEL_PMC_MAX_FIXED is still 4. If the current
kernel runs on a future platform which has more than 4 fixed counters,
a warning will be triggered. The number of the fixed counters will be
clipped to 4. Users have to upgrade the kernel to access the new fixed
counters.

Add a new default constraint for PerfMon v5 and up, which can support
up to 16 fixed counters. The pseudo-encoding is applied for the fixed
counters 4 and later. The user can have generic support for the new
fixed counters on the future platfroms without updating the kernel.

Increase the INTEL_PMC_MAX_FIXED to 16.

Intel-SIG: commit ee28855a perf/x86/intel: Increase max number of the fixed counters
Backport PEBS format 5 support to kernel v5.10.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lkml.kernel.org/r/1643750603-100733-3-git-send-email-kan.liang@linux.intel.com


Signed-off-by: Yunying Sun <yunying.sun@intel.com>