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From: Paul Burton <paul.burton@imgtec.com>
To: <linux-mips@linux-mips.org>
Cc: <devicetree@vger.kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Kumar Gala <galak@codeaurora.org>,
	"Paul Burton" <paul.burton@imgtec.com>,
	<linux-kernel@vger.kernel.org>,
	James Hogan <james.hogan@imgtec.com>,
	Markos Chandras <markos.chandras@imgtec.com>,
	"Ralf Baechle" <ralf@linux-mips.org>
Subject: [PATCH 13/15] MIPS: malta: remove nonsense memory limit
Date: Fri, 22 May 2015 16:51:12 +0100	[thread overview]
Message-ID: <1432309875-9712-14-git-send-email-paul.burton@imgtec.com> (raw)
In-Reply-To: <1432309875-9712-1-git-send-email-paul.burton@imgtec.com>

This cap of Malta memory size to 0x7fff0000 was added by commit
e6ca4e5bf114 "MIPS: malta: malta-memory: Add support for the 'ememsize'
variable" as part of support for EVA, with only the cryptic comment
"Last 64K for HIGHMEM arithmetics". However

  - EVA is used to avoid highmem, both are not enabled at once which
    makes the comment about highmem macros nonsensical.

  - I can think of no good reason for it, and nor could anyone else I
    asked.

So remove this memsize limit.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
---

 arch/mips/mti-malta/malta-memory.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index 5660cd6..831f583 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -94,10 +94,6 @@ void __init fw_meminit(void)
 	else
 		memsize = physical_memsize;
 
-	/* Last 64K for HIGHMEM arithmetics */
-	if (memsize > 0x7fff0000)
-		memsize = 0x7fff0000;
-
 	add_memory_region(PHYS_OFFSET, 0x00001000, BOOT_MEM_RESERVED);
 
 	/*
-- 
2.4.1


  parent reply	other threads:[~2015-05-22 15:55 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-22 15:50 [PATCH 00/15] MIPS Malta DT Conversion Paul Burton
2015-05-22 15:51 ` [PATCH 01/15] MIPS: define GCR_GIC_STATUS register fields Paul Burton
2015-05-22 15:51 ` [PATCH 02/15] MIPS: include errno.h for ENODEV in mips-cm.h Paul Burton
2015-05-22 15:51 ` [PATCH 03/15] MIPS: malta: basic DT plumbing Paul Burton
2015-05-22 15:51 ` [PATCH 04/15] MIPS: i8259: DT support Paul Burton
2015-05-22 15:51 ` [PATCH 05/15] irqchip: mips-gic: register IRQ domain with MIPS_GIC_IRQ_BASE Paul Burton
2015-05-22 17:27   ` Jason Cooper
2015-05-22 15:51 ` [PATCH 06/15] MIPS: malta: probe interrupt controllers via DT Paul Burton
2015-05-22 15:51 ` [PATCH 07/15] MIPS: remove [SR]ocIt(2) IRQ handling code Paul Burton
2015-05-22 15:51 ` [PATCH 08/15] of_serial: support for UARTs on I/O ports Paul Burton
2015-05-26 13:53   ` Peter Hurley
2015-05-22 15:51 ` [PATCH 09/15] MIPS: malta: probe UARTs using DT Paul Burton
2015-05-22 15:51 ` [PATCH 10/15] MIPS: malta: probe RTC via DT Paul Burton
2015-05-22 15:51 ` [PATCH 11/15] MIPS: malta: probe pflash " Paul Burton
2015-05-22 15:51 ` [PATCH 12/15] MIPS: malta: remove fw_memblock_t abstraction Paul Burton
2015-05-22 15:51 ` Paul Burton [this message]
2015-05-22 15:51 ` [PATCH 14/15] MIPS: malta: setup RAM regions via DT Paul Burton
2015-10-29  4:39   ` Rob Herring
2015-05-22 15:51 ` [PATCH 15/15] MIPS: malta: setup post-I/O hole RAM on non-EVA Paul Burton
2015-05-25  7:59 ` [PATCH 00/15] MIPS Malta DT Conversion Rob Landley
2015-05-25 13:29   ` Paul Burton

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