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53 lines
1.4 KiB
Diff
53 lines
1.4 KiB
Diff
From 689a8f1ec58a88152669d21572a1539ad34024cb Mon Sep 17 00:00:00 2001
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From: Varadarajan Narayanan <varada@codeaurora.org>
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Date: Mon, 30 Mar 2015 13:25:21 +0530
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Subject: soc: qcom: ipq806x: Increase Atomic Coherent Pool size
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Linux 3.14, by default allocates a 256K Atomic Coherent Pool.
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However, Linux 3.4 seems to have allocated ~1.8M for the same.
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256K doesn't seem to be enough for the WiFi driver. Hence,
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setting the size to be similar to 3.4.
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CRs-Fixed: 810357
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Change-Id: I5b98a8531dcb33aff451a943f8b83402f9d13fa7
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Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
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---
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arch/arm/mach-qcom/board.c | 20 ++++++++++++++++++++
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1 file changed, 20 insertions(+)
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--- a/arch/arm/mach-qcom/board.c
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+++ b/arch/arm/mach-qcom/board.c
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@@ -12,6 +12,11 @@
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#include <linux/init.h>
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+#include <linux/err.h>
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+#include <linux/io.h>
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+#include <linux/module.h>
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+#include <linux/dma-mapping.h>
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+
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#include <asm/mach/arch.h>
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static const char * const qcom_dt_match[] __initconst = {
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@@ -28,3 +33,19 @@ static const char * const qcom_dt_match[
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DT_MACHINE_START(QCOM_DT, "Qualcomm (Flattened Device Tree)")
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.dt_compat = qcom_dt_match,
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MACHINE_END
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+
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+
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+static int __init qcom_atomic_pool_size_set(void)
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+{
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+#define ATOMIC_DMA_COHERENT_POOL_SIZE SZ_2M
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+
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+ init_dma_coherent_pool_size(ATOMIC_DMA_COHERENT_POOL_SIZE);
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+
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+ return 0;
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+}
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+
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+/*
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+ * This should happen before atomic_pool_init(), which is a
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+ * postcore_initcall.
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+ */
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+core_initcall(qcom_atomic_pool_size_set);
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