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Collect AMD specific platform header files in <asm/amd/*.h>.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mario Limonciello <superm1@kernel.org>
Link: https://lore.kernel.org/r/20250413084144.3746608-4-mingo@kernel.org
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Per Documentation/filesystems/sysfs.rst, a sysfs attribute's show()
method should only use sysfs_emit() or sysfs_emit_at() when returning
values to user space.
Use sysfs_emit() for the AMD L3 cache sysfs attributes cache_disable_0,
cache_disable_1, and subcaches.
Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250324133324.23458-15-darwi@linutronix.de
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Parent commit decoupled amd_northbridge out of _cpuid4_info_regs, where
it was merely "parked" there until ci_info_init() can store it in the
private pointer of the <linux/cacheinfo.h> API.
Given that decoupling, move the AMD-specific L3 cache_disable_0/1 sysfs
code from the generic (and already extremely convoluted) x86/cacheinfo
code into its own file.
Compile the file only if CONFIG_AMD_NB and CONFIG_SYSFS are both
enabled, which mirrors the existing logic.
Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250324133324.23458-14-darwi@linutronix.de
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