4cde55b708
Moving towards device tree and arm single binary referring to
machine descriptor name for hardware id information under
/proc/cpuinfo is not sufficient for soc vendors. Add a
hook for soc vendors to supply a per-soc hardware read method
Change-Id: Ifcccdffa3c0e1e8b5f96837eb1c023e468d4c287
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Bhargav Gurappadi <bhargavg1@codeaurora.org>
(cherry picked from commit b39389c3a6)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 153738240
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_ARM_SYSTEM_MISC_H
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#define __ASM_ARM_SYSTEM_MISC_H
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#ifndef __ASSEMBLY__
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#include <linux/compiler.h>
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#include <linux/linkage.h>
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#include <linux/irqflags.h>
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#include <linux/reboot.h>
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#include <linux/percpu.h>
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extern void cpu_init(void);
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void soft_restart(unsigned long);
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extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
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extern void (*arm_pm_idle)(void);
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#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
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typedef void (*harden_branch_predictor_fn_t)(void);
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DECLARE_PER_CPU(harden_branch_predictor_fn_t, harden_branch_predictor_fn);
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static inline void harden_branch_predictor(void)
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{
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harden_branch_predictor_fn_t fn = per_cpu(harden_branch_predictor_fn,
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smp_processor_id());
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if (fn)
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fn();
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}
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#else
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#define harden_branch_predictor() do { } while (0)
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#endif
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#define UDBG_UNDEFINED (1 << 0)
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#define UDBG_SYSCALL (1 << 1)
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#define UDBG_BADABORT (1 << 2)
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#define UDBG_SEGV (1 << 3)
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#define UDBG_BUS (1 << 4)
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extern unsigned int user_debug;
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extern char* (*arch_read_hardware_id)(void);
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static inline int handle_guest_sea(phys_addr_t addr, unsigned int esr)
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{
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return -1;
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}
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#endif /* !__ASSEMBLY__ */
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#endif /* __ASM_ARM_SYSTEM_MISC_H */
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