Commit fc1abd40 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Catalin Marinas
Browse files

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



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: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
Acked-by: default avatarWill Deacon <will@kernel.org>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent bf6b3fed

arch/arm64/include/asm/mmu_context.h

+2 −10
Original line number Diff line number Diff line
@@ -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);

}