2019-05-13 11:43:03

by Thomas Bogendoerfer

Subject: [PATCH] MIPS: SGI-IP22: provide missing dma_mask/coherent_dma_mask

Set dma_masks for SGIWD93 and SGISEEQ otherwise DMA allocations fails
and causes not working SCSI/ethernet.

Signed-off-by: Thomas Bogendoerfer <[email protected]>
---
arch/mips/sgi-ip22/ip22-platform.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
index 37ad26716579..0b2002e02a47 100644
--- a/arch/mips/sgi-ip22/ip22-platform.c
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -3,6 +3,7 @@
#include <linux/if_ether.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>

#include <asm/paccess.h>
#include <asm/sgi/ip22.h>
@@ -25,6 +26,8 @@ static struct sgiwd93_platform_data sgiwd93_0_pd = {
.irq = SGI_WD93_0_IRQ,
};

+static u64 sgiwd93_0_dma_mask = DMA_BIT_MASK(32);
+
static struct platform_device sgiwd93_0_device = {
.name = "sgiwd93",
.id = 0,
@@ -32,6 +35,8 @@ static struct platform_device sgiwd93_0_device = {
.resource = sgiwd93_0_resources,
.dev = {
.platform_data = &sgiwd93_0_pd,
+ .dma_mask = &sgiwd93_0_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
};

@@ -49,6 +54,8 @@ static struct sgiwd93_platform_data sgiwd93_1_pd = {
.irq = SGI_WD93_1_IRQ,
};

+static u64 sgiwd93_1_dma_mask = DMA_BIT_MASK(32);
+
static struct platform_device sgiwd93_1_device = {
.name = "sgiwd93",
.id = 1,
@@ -56,6 +63,8 @@ static struct platform_device sgiwd93_1_device = {
.resource = sgiwd93_1_resources,
.dev = {
.platform_data = &sgiwd93_1_pd,
+ .dma_mask = &sgiwd93_1_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
};

@@ -96,6 +105,8 @@ static struct resource sgiseeq_0_resources[] = {

static struct sgiseeq_platform_data eth0_pd;

+static u64 sgiseeq_dma_mask = DMA_BIT_MASK(32);
+
static struct platform_device eth0_device = {
.name = "sgiseeq",
.id = 0,
@@ -103,6 +114,8 @@ static struct platform_device eth0_device = {
.resource = sgiseeq_0_resources,
.dev = {
.platform_data = &eth0_pd,
+ .dma_mask = &sgiseeq_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
};

--
2.13.7

2019-05-13 19:53:20

by Paul Burton

Subject: Re: [PATCH] MIPS: SGI-IP22: provide missing dma_mask/coherent_dma_mask

Hello,

Thomas Bogendoerfer wrote:
> Set dma_masks for SGIWD93 and SGISEEQ otherwise DMA allocations fails
> and causes not working SCSI/ethernet.
>
> Signed-off-by: Thomas Bogendoerfer <[email protected]>

Applied to mips-next.

Thanks,
Paul

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