search for: setup_css

...dth (examples ccw,). */ > > > >> + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); > >> + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; > >> return sch; > >> > >> err: > >> @@ -899,6 +903,8 @@ static int __init setup_css(int nr) > >> dev_set_name(&css->device, "css%x", nr); > >> css->device.groups = cssdev_attr_groups; > >> css->device.release = channel_subsystem_release; > > > > ...and 64 bit here. > > and here. /* * We currently...

...dth (examples ccw,). */ > > > >> + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); > >> + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; > >> return sch; > >> > >> err: > >> @@ -899,6 +903,8 @@ static int __init setup_css(int nr) > >> dev_set_name(&css->device, "css%x", nr); > >> css->device.groups = cssdev_attr_groups; > >> css->device.release = channel_subsystem_release; > > > > ...and 64 bit here. > > and here. /* * We currently...

...t;linux/dma-mapping.h> > #include <asm/isc.h> > #include <asm/crw.h> > > @@ -886,6 +888,8 @@ static const struct attribute_group *cssdev_attr_groups[] = { > NULL, > }; > > +static u64 css_dev_dma_mask = DMA_BIT_MASK(31); > + > static int __init setup_css(int nr) > { > struct channel_subsystem *css; > @@ -899,6 +903,9 @@ static int __init setup_css(int nr) > dev_set_name(&css->device, "css%x", nr); > css->device.groups = cssdev_attr_groups; > css->device.release = channel_subsystem_release; > + /*...

...at linux.ibm.com> wrote: > > > @@ -886,6 +888,8 @@ static const struct attribute_group *cssdev_attr_groups[] = { > > > NULL, > > > }; > > > > > > +static u64 css_dev_dma_mask = DMA_BIT_MASK(31); > > > + > > > static int __init setup_css(int nr) > > > { > > > struct channel_subsystem *css; > > > @@ -899,6 +903,9 @@ static int __init setup_css(int nr) > > > dev_set_name(&css->device, "css%x", nr); > > > css->device.groups = cssdev_attr_groups; > > > c...

..._initialize(&sch->dev); It might be helpful to add a comment why you use 31 bit here... > + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); > + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; > return sch; > > err: > @@ -899,6 +903,8 @@ static int __init setup_css(int nr) > dev_set_name(&css->device, "css%x", nr); > css->device.groups = cssdev_attr_groups; > css->device.release = channel_subsystem_release; ...and 64 bit here. > + css->device.coherent_dma_mask = DMA_BIT_MASK(64); > + css->device.dma_mask = &...

..._initialize(&sch->dev); It might be helpful to add a comment why you use 31 bit here... > + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); > + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; > return sch; > > err: > @@ -899,6 +903,8 @@ static int __init setup_css(int nr) > dev_set_name(&css->device, "css%x", nr); > css->device.groups = cssdev_attr_groups; > css->device.release = channel_subsystem_release; ...and 64 bit here. > + css->device.coherent_dma_mask = DMA_BIT_MASK(64); > + css->device.dma_mask = &...

...> > > >> + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); > > >> + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; > > >> return sch; > > >> > > >> err: > > >> @@ -899,6 +903,8 @@ static int __init setup_css(int nr) > > >> dev_set_name(&css->device, "css%x", nr); > > >> css->device.groups = cssdev_attr_groups; > > >> css->device.release = channel_subsystem_release; > > > > > > ...and 64 bit here. > > &...

.... @Halil, please let me know what comment you prefere here... > >> + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); >> + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; >> return sch; >> >> err: >> @@ -899,6 +903,8 @@ static int __init setup_css(int nr) >> dev_set_name(&css->device, "css%x", nr); >> css->device.groups = cssdev_attr_groups; >> css->device.release = channel_subsystem_release; > > ...and 64 bit here. and here. > >> + css->device.coherent_dma_mask = DMA_BI...

...;sch->todo_work, css_sch_todo); sch->dev.release = &css_subchannel_release; device_initialize(&sch->dev); + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; return sch; err: @@ -899,6 +903,8 @@ static int __init setup_css(int nr) dev_set_name(&css->device, "css%x", nr); css->device.groups = cssdev_attr_groups; css->device.release = channel_subsystem_release; + css->device.coherent_dma_mask = DMA_BIT_MASK(64); + css->device.dma_mask = &css->device.coherent_dma_mask; mutex...

...h_todo); sch->dev.release = &css_subchannel_release; device_initialize(&sch->dev); + sch->dma_mask = css_dev_dma_mask; + sch->dev.dma_mask = &sch->dma_mask; + sch->dev.coherent_dma_mask = sch->dma_mask; return sch; err: @@ -899,6 +906,9 @@ static int __init setup_css(int nr) dev_set_name(&css->device, "css%x", nr); css->device.groups = cssdev_attr_groups; css->device.release = channel_subsystem_release; + /* some cio DMA memory needs to be 31 bit addressable */ + css->device.coherent_dma_mask = css_dev_dma_mask, + css->device....

...;sch->todo_work, css_sch_todo); sch->dev.release = &css_subchannel_release; device_initialize(&sch->dev); + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; return sch; err: @@ -899,6 +903,8 @@ static int __init setup_css(int nr) dev_set_name(&css->device, "css%x", nr); css->device.groups = cssdev_attr_groups; css->device.release = channel_subsystem_release; + css->device.coherent_dma_mask = DMA_BIT_MASK(64); + css->device.dma_mask = &css->device.coherent_dma_mask; mutex...

...physical addresses of some the dma structures that can + * belong to a subchannel need to fit 31 bit width (e.g. ccw). + */ + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; return sch; err: @@ -899,6 +907,13 @@ static int __init setup_css(int nr) dev_set_name(&css->device, "css%x", nr); css->device.groups = cssdev_attr_groups; css->device.release = channel_subsystem_release; + /* + * We currently allocate notifier bits with this (using + * css->device as the device argument with the DMA API) + * an...

...physical addresses of some the dma structures that can + * belong to a subchannel need to fit 31 bit width (e.g. ccw). + */ + sch->dev.coherent_dma_mask = DMA_BIT_MASK(31); + sch->dev.dma_mask = &sch->dev.coherent_dma_mask; return sch; err: @@ -899,6 +907,13 @@ static int __init setup_css(int nr) dev_set_name(&css->device, "css%x", nr); css->device.groups = cssdev_attr_groups; css->device.release = channel_subsystem_release; + /* + * We currently allocate notifier bits with this (using + * css->device as the device argument with the DMA API) + * an...

Enhanced virtualization protection technology may require the use of bounce buffers for I/O. While support for this was built into the virtio core, virtio-ccw wasn't changed accordingly. Some background on technology (not part of this series) and the terminology used. * Protected Virtualization (PV): Protected Virtualization guarantees, that non-shared memory of a guest that operates in PV

Enhanced virtualization protection technology may require the use of bounce buffers for I/O. While support for this was built into the virtio core, virtio-ccw wasn't changed accordingly. Some background on technology (not part of this series) and the terminology used. * Protected Virtualization (PV): Protected Virtualization guarantees, that non-shared memory of a guest that operates in PV

Enhanced virtualization protection technology may require the use of bounce buffers for I/O. While support for this was built into the virtio core, virtio-ccw wasn't changed accordingly. Some background on technology (not part of this series) and the terminology used. * Protected Virtualization (PV): Protected Virtualization guarantees, that non-shared memory of a guest that operates in PV

Enhanced virtualization protection technology may require the use of bounce buffers for I/O. While support for this was built into the virtio core, virtio-ccw wasn't changed accordingly. Some background on technology (not part of this series) and the terminology used. * Protected Virtualization (PV): Protected Virtualization guarantees, that non-shared memory of a guest that operates in PV

Enhanced virtualization protection technology may require the use of bounce buffers for I/O. While support for this was built into the virtio core, virtio-ccw wasn't changed accordingly. Some background on technology (not part of this series) and the terminology used. * Protected Virtualization (PV): Protected Virtualization guarantees, that non-shared memory of a guest that operates in PV

Enhanced virtualization protection technology may require the use of bounce buffers for I/O. While support for this was built into the virtio core, virtio-ccw wasn't changed accordingly. Some background on technology (not part of this series) and the terminology used. * Protected Virtualization (PV): Protected Virtualization guarantees, that non-shared memory of a guest that operates in PV

Enhanced virtualization protection technology may require the use of bounce buffers for I/O. While support for this was built into the virtio core, virtio-ccw wasn't changed accordingly. Some background on technology (not part of this series) and the terminology used. * Protected Virtualization (PV): Protected Virtualization guarantees, that non-shared memory of a guest that operates in PV