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3270bfdb9e
With 4-level page table folding at runtime, we don't know at compile time the size of the virtual address space so we must set VA_BITS dynamically so that sparsemem reserves the right amount of memory for struct pages. Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
16 lines
331 B
C
16 lines
331 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_RISCV_SPARSEMEM_H
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#define _ASM_RISCV_SPARSEMEM_H
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#ifdef CONFIG_SPARSEMEM
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#ifdef CONFIG_64BIT
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#define MAX_PHYSMEM_BITS 56
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#else
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#define MAX_PHYSMEM_BITS 34
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#endif /* CONFIG_64BIT */
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#define SECTION_SIZE_BITS 27
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#endif /* CONFIG_SPARSEMEM */
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#endif /* _ASM_RISCV_SPARSEMEM_H */
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