| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
The arm64 asm/arm_pmuv3.h depends on defines from
linux/perf/arm_pmuv3.h. Rather than depend on include order, follow the
usual pattern of "linux" headers including "asm" headers of the same
name.
With this change, the include of linux/kvm_host.h is problematic due to
circular includes:
In file included from ../arch/arm64/include/asm/arm_pmuv3.h:9,
from ../include/linux/perf/arm_pmuv3.h:312,
from ../include/kvm/arm_pmu.h:11,
from ../arch/arm64/include/asm/kvm_host.h:38,
from ../arch/arm64/mm/init.c:41:
../include/linux/kvm_host.h:383:30: error: field 'arch' has incomplete type
Switching to asm/kvm_host.h solves the issue.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240626-arm-pmu-3-9-icntr-v2-5-c9784b4f4065@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
|
|
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: df29ddf4f04b ("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>
|
|
When just including <asm/arm_pmuv3.h>:
arch/arm64/include/asm/arm_pmuv3.h:31:13: error: ‘write_pmevtypern’ defined but not used [-Werror=unused-function]
31 | static void write_pmevtypern(int n, unsigned long val)
| ^~~~~~~~~~~~~~~~
arch/arm64/include/asm/arm_pmuv3.h:24:13: error: ‘write_pmevcntrn’ defined but not used [-Werror=unused-function]
24 | static void write_pmevcntrn(int n, unsigned long val)
| ^~~~~~~~~~~~~~~
arch/arm64/include/asm/arm_pmuv3.h:16:22: error: ‘read_pmevcntrn’ defined but not used [-Werror=unused-function]
16 | static unsigned long read_pmevcntrn(int n)
| ^~~~~~~~~~~~~~
Fix this by adding the missing "inline" keywords to the three accessor
functions that lack them.
Fixes: df29ddf4f04b ("arm64: perf: Abstract system register accesses away")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/d53a19043c0c3bd25f6c203e73a2fb08a9661824.1683561482.git.geert+renesas@glider.be
Signed-off-by: Will Deacon <will@kernel.org>
|
|
KVM host support is available only on arm64.
By moving the inclusion of kvm_host.h to an arm64-specific file,
the 32bit architecture will be able to implement dummy helpers.
Signed-off-by: Zaid Al-Bassam <zalbassam@google.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230317195027.3746949-5-zalbassam@google.com
Signed-off-by: Will Deacon <will@kernel.org>
|
|
The current PMU version definitions are available for arm64 only,
As we want to add PMUv3 support to arm (32-bit), abstracts
these definitions by using arch-specific helpers.
Signed-off-by: Zaid Al-Bassam <zalbassam@google.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230317195027.3746949-4-zalbassam@google.com
Signed-off-by: Will Deacon <will@kernel.org>
|
|
As we want to enable 32bit support, we need to distanciate the
PMUv3 driver from the AArch64 system register names.
This patch moves all system register accesses to an architecture
specific include file, allowing the 32bit counterpart to be
slotted in at a later time.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Co-developed-by: Zaid Al-Bassam <zalbassam@google.com>
Signed-off-by: Zaid Al-Bassam <zalbassam@google.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230317195027.3746949-3-zalbassam@google.com
Signed-off-by: Will Deacon <will@kernel.org>
|
