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Commit 98ae0069 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
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powerpc/pseries: radix is not subject to RMA limit, remove it 



The radix guest is not subject to the paravirtualized HPT VRMA limit,
so remove that from ppc64_rma_size calculation for that platform.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 1513c33d

arch/powerpc/mm/pgtable-radix.c

+4 −7
Original line number Diff line number Diff line
@@ -631,15 +631,12 @@ void radix__setup_initial_memory_limit(phys_addr_t first_memblock_base, 


	if (!early_cpu_has_feature(CPU_FTR_HVMODE)) {

		/*

		 * We limit the allocation that depend on ppc64_rma_size

		 * to first_memblock_size. We also clamp it to 1GB to

		 * avoid some funky things such as RTAS bugs.

		 * Radix mode guests are not limited by RMA / VRMA addressing.

		 *

		 * On radix config we really don't have a limitation

		 * on real mode access. But keeping it as above works

		 * well enough.

		 * We do clamp addresses to 1GB to avoid some funky things

		 * such as RTAS bugs.

		 */

		ppc64_rma_size = min_t(u64, first_memblock_size, 0x40000000);

		ppc64_rma_size = 0x40000000;

		/*

		 * Finally limit subsequent allocations. We really don't want

		 * to limit the memblock allocations to rma_size. FIXME!! should