linux-kernel - [PATCH v2] arm64/mm: add fallback option to allocate virtually

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Message-Id: <cover.1601506266.git.sudaraja@codeaurora.org>
Date:   Wed, 30 Sep 2020 16:13:24 -0700
From:   Sudarshan Rajagopalan <sudaraja@...eaurora.org>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Sudarshan Rajagopalan <sudaraja@...eaurora.org>
Subject: [PATCH v2] arm64/mm: add fallback option to allocate virtually

V1: The initial patch used the approach to abort at the first instance of PMD_SIZE
allocation failure, unmaps all previously mapped sections using vmemmap_free
and maps the entire request with vmemmap_populate_basepages to allocate
virtually contiguous memory.
https://lkml.org/lkml/2020/9/10/66

V2: Allocates virtually contiguous memory only for sections that failed
PMD_SIZE allocation, and continues to allocate physically contiguous
memory for other sections.

Sudarshan Rajagopalan (1):
  arm64/mm: add fallback option to allocate virtually contiguous memory

 arch/arm64/mm/mmu.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

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