Patch "ARM: zynq: Reserve correct amount of non-DMA RAM" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

ARM: zynq: Reserve correct amount of non-DMA RAM

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
arm-zynq-reserve-correct-amount-of-non-dma-ram.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Kyle Roeschley <[email protected]>
Date: Mon, 31 Oct 2016 11:26:17 -0500
Subject: ARM: zynq: Reserve correct amount of non-DMA RAM

From: Kyle Roeschley <[email protected]>

commit 7a3cc2a7b2c723aa552028f4e66841cec183756d upstream.

On Zynq, we haven't been reserving the correct amount of DMA-incapable RAM to keep DMA away from it (per the Zynq TRM Section 4.1, it should be the first 512k). In older kernels, this was masked by the memblock_reserve call in arm_memblock_init(). Now, reserve the correct amount excplicitly rather than relying on swapper_pg_dir, which is an address and not a size anyway.

---
 arch/arm/mach-zynq/common.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -59,7 +59,7 @@ void __iomem *zynq_scu_base;
 static void __init zynq_memory_init(void)
 {
 	if (!__pa(PAGE_OFFSET))
-		memblock_reserve(__pa(PAGE_OFFSET), __pa(swapper_pg_dir));
+		memblock_reserve(__pa(PAGE_OFFSET), 0x80000);
 }
 
 static struct platform_device zynq_cpuidle_device = {

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/arm-zynq-reserve-correct-amount-of-non-dma-ram.patch