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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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09dc68d958
struct cpu_dev's c_models is only ever set inside CONFIG_X86_32 conditionals (or code that's being built for 32-bit only), so there's no use of reserving the (empty) space for the model names in a 64-bit kernel. Similarly, c_size_cache is only used in the #else of a CONFIG_X86_64 conditional, so reserving space for (and in one case even initializing) that field is pointless for 64-bit kernels too. While moving both fields to the end of the structure, I also noticed that: - the c_models array size was one too small, potentially causing table_lookup_model() to return garbage on Intel CPUs (intel.c's instance was lacking the sentinel with family being zero), so the patch bumps that by one, - c_models' vendor sub-field was unused (and anyway redundant with the base structure's c_x86_vendor field), so the patch deletes it. Also rename the legacy fields so that their legacy nature stands out and comment their declarations. Signed-off-by: Jan Beulich <jbeulich@suse.com> Link: http://lkml.kernel.org/r/5265036802000078000FC4DB@nat28.tlf.novell.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
27 lines
461 B
C
27 lines
461 B
C
#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/processor.h>
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#include "cpu.h"
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/*
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* UMC chips appear to be only either 386 or 486,
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* so no special init takes place.
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*/
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static const struct cpu_dev umc_cpu_dev = {
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.c_vendor = "UMC",
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.c_ident = { "UMC UMC UMC" },
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.legacy_models = {
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{ .family = 4, .model_names =
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{
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[1] = "U5D",
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[2] = "U5S",
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}
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},
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},
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.c_x86_vendor = X86_VENDOR_UMC,
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};
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cpu_dev_register(umc_cpu_dev);
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