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arm64/mm: Drop cpu_set_[default|idmap]_tcr_t0sz()

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These TCR_El1 helpers don't have any other callers. Drop these redundant
indirections completely thus making this code more compact and readable.
No functional change.

Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Anshuman Khandual 2025-10-15 03:10:24 +01:00 committed by Catalin Marinas
parent bf6b3fed18
commit fc1abd4093
1 changed files with 2 additions and 10 deletions
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12
arch/arm64/include/asm/mmu_context.h
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@ -61,11 +61,6 @@ static inline void cpu_switch_mm(pgd_t *pgd, struct mm_struct *mm)
cpu_do_switch_mm(virt_to_phys(pgd),mm);
}
/*
* TCR.T0SZ value to use when the ID map is active.
*/
#define idmap_t0sz TCR_T0SZ(IDMAP_VA_BITS)
/*
* Ensure TCR.T0SZ is set to the provided value.
*/
@ -82,9 +77,6 @@ static inline void __cpu_set_tcr_t0sz(unsigned long t0sz)
isb();
}
#define cpu_set_default_tcr_t0sz() __cpu_set_tcr_t0sz(TCR_T0SZ(vabits_actual))
#define cpu_set_idmap_tcr_t0sz() __cpu_set_tcr_t0sz(idmap_t0sz)
/*
* Remove the idmap from TTBR0_EL1 and install the pgd of the active mm.
*
@ -103,7 +95,7 @@ static inline void cpu_uninstall_idmap(void)
cpu_set_reserved_ttbr0();
local_flush_tlb_all();
cpu_set_default_tcr_t0sz();
__cpu_set_tcr_t0sz(TCR_T0SZ(vabits_actual));
if (mm != &init_mm && !system_uses_ttbr0_pan())
cpu_switch_mm(mm->pgd, mm);
@ -113,7 +105,7 @@ static inline void cpu_install_idmap(void)
{
cpu_set_reserved_ttbr0();
local_flush_tlb_all();
cpu_set_idmap_tcr_t0sz();
__cpu_set_tcr_t0sz(TCR_T0SZ(IDMAP_VA_BITS));
cpu_switch_mm(lm_alias(idmap_pg_dir), &init_mm);
}