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95b7a8fd12
Introduce a minimal cpuinfo structure to hold cache related info. The instruction/data cache size and cache line size are initialized early in the boot to default Kconfig values. They will be overwritten with data from PVR/dtb if the microblaze UCLASS_CPU driver is enabled. The cpuinfo struct was placed in global_data to allow the microblaze UCLASS_CPU driver to also run before relocation (initialized global data should be read-only before relocation). gd_cpuinfo() helper macro was added to avoid volatile "-Wdiscarded-qualifiers" warnings when using the pointer directly. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-10-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com> (s/bralid/brlid/)
25 lines
534 B
C
25 lines
534 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2004 Atmark Techno, Inc.
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*
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* Yasushi SHOJI <yashi@atmark-techno.com>
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*/
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#ifndef __ASM_GBL_DATA_H
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#define __ASM_GBL_DATA_H
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#include <asm/cpuinfo.h>
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/* Architecture-specific global data */
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struct arch_global_data {
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struct microblaze_cpuinfo cpuinfo;
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};
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#include <asm-generic/global_data.h>
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#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r31")
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#define gd_cpuinfo() ((struct microblaze_cpuinfo *)&gd->arch.cpuinfo)
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#endif /* __ASM_GBL_DATA_H */
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