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* [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
@ 2014-12-24 21:55 ` Murali Karicheri
  0 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2014-12-24 21:55 UTC (permalink / raw)
  To: linux, linux-arm-kernel, linux-kernel, arnd, will.deacon,
	grant.likely, robh+dt, devicetree
  Cc: Murali Karicheri

dma_mask should be limited to minimum of the default dma mask
and dma-range size configured in DT for proper operation.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mm/dma-mapping.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 7864797..5cea1fc 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 {
 	struct dma_map_ops *dma_ops;
 
+	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
 	dev->archdata.dma_coherent = coherent;
 	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
 		dma_ops = arm_get_iommu_dma_map_ops(coherent);
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 8+ messages in thread
* [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
@ 2014-12-24 21:55 ` Murali Karicheri
  0 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2014-12-24 21:55 UTC (permalink / raw)
  To: linux-lFZ/pmaqli7XmaaqVzeoHQ,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA, arnd-r2nGTMty4D4,
	will.deacon-5wv7dgnIgG8, grant.likely-QSEj5FYQhm4dnm+yROfE0A,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A,
	devicetree-u79uwXL29TY76Z2rM5mHXA
  Cc: Murali Karicheri

dma_mask should be limited to minimum of the default dma mask
and dma-range size configured in DT for proper operation.

Signed-off-by: Murali Karicheri <m-karicheri2-l0cyMroinI0@public.gmane.org>
Reviewed-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/arm/mm/dma-mapping.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 7864797..5cea1fc 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 {
 	struct dma_map_ops *dma_ops;
 
+	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
 	dev->archdata.dma_coherent = coherent;
 	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
 		dma_ops = arm_get_iommu_dma_map_ops(coherent);
-- 
1.7.9.5

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^ permalink raw reply related	[flat|nested] 8+ messages in thread
* [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
@ 2014-12-24 21:55 ` Murali Karicheri
  0 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2014-12-24 21:55 UTC (permalink / raw)
  To: linux-arm-kernel

dma_mask should be limited to minimum of the default dma mask
and dma-range size configured in DT for proper operation.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mm/dma-mapping.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 7864797..5cea1fc 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 {
 	struct dma_map_ops *dma_ops;
 
+	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
 	dev->archdata.dma_coherent = coherent;
 	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
 		dma_ops = arm_get_iommu_dma_map_ops(coherent);
-- 
1.7.9.5

^ permalink raw reply related	[flat|nested] 8+ messages in thread
* Re: [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
  2014-12-24 21:55 ` Murali Karicheri
  (?)
@ 2015-01-13 20:38   ` Murali Karicheri
  -1 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2015-01-13 20:38 UTC (permalink / raw)
  To: Murali Karicheri
  Cc: linux, linux-arm-kernel, linux-kernel, arnd, will.deacon,
	grant.likely, robh+dt, devicetree

On 12/24/2014 04:55 PM, Murali Karicheri wrote:
> dma_mask should be limited to minimum of the default dma mask
> and dma-range size configured in DT for proper operation.
>
> Signed-off-by: Murali Karicheri<m-karicheri2@ti.com>
> Reviewed-by: Arnd Bergmann<arnd@arndb.de>
> ---
>   arch/arm/mm/dma-mapping.c |    1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 7864797..5cea1fc 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
>   {
>   	struct dma_map_ops *dma_ops;
>
> +	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
>   	dev->archdata.dma_coherent = coherent;
>   	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
>   		dma_ops = arm_get_iommu_dma_map_ops(coherent);
Please discard this as this is still a work in progress. Any change if 
required will be added to my series with subject "PCI: get DMA 
configuration from parent device"

Thanks.
-- 
Murali Karicheri
Linux Kernel, Texas Instruments

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
@ 2015-01-13 20:38   ` Murali Karicheri
  0 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2015-01-13 20:38 UTC (permalink / raw)
  To: Murali Karicheri
  Cc: linux, linux-arm-kernel, linux-kernel, arnd, will.deacon,
	grant.likely, robh+dt, devicetree

On 12/24/2014 04:55 PM, Murali Karicheri wrote:
> dma_mask should be limited to minimum of the default dma mask
> and dma-range size configured in DT for proper operation.
>
> Signed-off-by: Murali Karicheri<m-karicheri2@ti.com>
> Reviewed-by: Arnd Bergmann<arnd@arndb.de>
> ---
>   arch/arm/mm/dma-mapping.c |    1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 7864797..5cea1fc 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
>   {
>   	struct dma_map_ops *dma_ops;
>
> +	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
>   	dev->archdata.dma_coherent = coherent;
>   	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
>   		dma_ops = arm_get_iommu_dma_map_ops(coherent);
Please discard this as this is still a work in progress. Any change if 
required will be added to my series with subject "PCI: get DMA 
configuration from parent device"

Thanks.
-- 
Murali Karicheri
Linux Kernel, Texas Instruments

^ permalink raw reply	[flat|nested] 8+ messages in thread
* [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
@ 2015-01-13 20:38   ` Murali Karicheri
  0 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2015-01-13 20:38 UTC (permalink / raw)
  To: linux-arm-kernel

On 12/24/2014 04:55 PM, Murali Karicheri wrote:
> dma_mask should be limited to minimum of the default dma mask
> and dma-range size configured in DT for proper operation.
>
> Signed-off-by: Murali Karicheri<m-karicheri2@ti.com>
> Reviewed-by: Arnd Bergmann<arnd@arndb.de>
> ---
>   arch/arm/mm/dma-mapping.c |    1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 7864797..5cea1fc 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
>   {
>   	struct dma_map_ops *dma_ops;
>
> +	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
>   	dev->archdata.dma_coherent = coherent;
>   	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
>   		dma_ops = arm_get_iommu_dma_map_ops(coherent);
Please discard this as this is still a work in progress. Any change if 
required will be added to my series with subject "PCI: get DMA 
configuration from parent device"

Thanks.
-- 
Murali Karicheri
Linux Kernel, Texas Instruments

^ permalink raw reply	[flat|nested] 8+ messages in thread
* [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
@ 2014-12-24 21:51 ` Murali Karicheri
  0 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2014-12-24 21:51 UTC (permalink / raw)
  To: linux, linux-arm-kernel, linux-kernel, arnd, will.deacon; +Cc: Murali Karicheri

dma_mask should be limited to minimum of the default dma mask
and dma-range size configured in DT for proper operation.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mm/dma-mapping.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 7864797..5cea1fc 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 {
 	struct dma_map_ops *dma_ops;
 
+	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
 	dev->archdata.dma_coherent = coherent;
 	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
 		dma_ops = arm_get_iommu_dma_map_ops(coherent);
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 8+ messages in thread
* [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops()
@ 2014-12-24 21:51 ` Murali Karicheri
  0 siblings, 0 replies; 8+ messages in thread
From: Murali Karicheri @ 2014-12-24 21:51 UTC (permalink / raw)
  To: linux-arm-kernel

dma_mask should be limited to minimum of the default dma mask
and dma-range size configured in DT for proper operation.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mm/dma-mapping.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 7864797..5cea1fc 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2053,6 +2053,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 {
 	struct dma_map_ops *dma_ops;
 
+	*dev->dma_mask = min((*dev->dma_mask), (dma_base + size - 1));
 	dev->archdata.dma_coherent = coherent;
 	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
 		dma_ops = arm_get_iommu_dma_map_ops(coherent);
-- 
1.7.9.5

^ permalink raw reply related	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2015-01-13 20:38 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2014-12-24 21:55 [PATCH] dma-mapping: limit dma_mask in arch_setup_dma_ops() Murali Karicheri
2014-12-24 21:55 ` Murali Karicheri
2014-12-24 21:55 ` Murali Karicheri
2015-01-13 20:38 ` Murali Karicheri
2015-01-13 20:38   ` Murali Karicheri
2015-01-13 20:38   ` Murali Karicheri
  -- strict thread matches above, loose matches on Subject: below --
2014-12-24 21:51 Murali Karicheri
2014-12-24 21:51 ` Murali Karicheri

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