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Ilkka Koskinen afadf1fad6 arm64/arm: arm_pmuv3: perf: Don't truncate 64-bit registers 
[ Upstream commit 403edfa436286b21f5ffe6856ae5b36396e8966c ]

The driver used to truncate several 64-bit registers such as PMCEID[n]
registers used to describe whether architectural and microarchitectural
events in range 0x4000-0x401f exist. Due to discarding the bits, the
driver made the events invisible, even if they existed.

Moreover, PMCCFILTR and PMCR registers have additional bits in the upper
32 bits. This patch makes them available although they aren't currently
used. Finally, functions handling PMXEVCNTR and PMXEVTYPER registers are
removed as they not being used at all.

Fixes: df29ddf4f0 ("arm64: perf: Abstract system register accesses away")
Reported-by: Carl Worth <carl@os.amperecomputing.com>
Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Acked-by: Will Deacon <will@kernel.org>
Closes: https://lore.kernel.org/..
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20231102183012.1251410-1-ilkka@os.amperecomputing.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-11-20 11:59:38 +01:00
..
boot arm64: tegra: Use correct interrupts for Tegra234 TKE 2023-11-20 11:59:17 +01:00
configs arm64: defconfig: enable syscon-poweroff driver 2023-09-28 09:17:05 +02:00
crypto crypto: arm64/aes - remove Makefile hack 2023-08-11 19:19:27 +08:00
hyperv arm64/hyperv: Use CPUHP_AP_HYPERV_ONLINE state to fix CPU online sequencing 2023-06-17 23:09:47 +00:00
include arm64/arm: arm_pmuv3: perf: Don't truncate 64-bit registers 2023-11-20 11:59:38 +01:00
kernel arm64: errata: Add Cortex-A520 speculative unprivileged load workaround 2023-09-29 16:31:33 +01:00
kvm clocksource/drivers/arm_arch_timer: limit XGene-1 workaround 2023-11-20 11:59:12 +01:00
lib arm64 fixes for -rc1 2023-09-08 12:48:37 -07:00
mm arm64: hugetlb: fix set_huge_pte_at() to work with all swap entries 2023-09-29 17:20:47 -07:00
net bpf, arm64: Support signed div/mod instructions 2023-08-18 15:46:35 +02:00
tools arm64: errata: Add Cortex-A520 speculative unprivileged load workaround 2023-09-29 16:31:33 +01:00
xen
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Kbuild
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Kconfig arm64: errata: Add Cortex-A520 speculative unprivileged load workaround 2023-09-29 16:31:33 +01:00
Kconfig.debug
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Kconfig.platforms STM32 STM32MP25 for v6.5, round 1 2023-06-20 22:28:44 +02:00
Makefile arm64 updates for 6.3: 2023-02-21 15:27:48 -08:00