Ah that's fine then. And since wr_flags[hw->d2h_last_id] is just
true/false then it doesn't matter if it races.
regards,
dan carpenter
On Tue, Oct 15, 2019 at 04:19:55PM +0300, Dan Carpenter wrote:
> On Tue, Oct 15, 2019 at 01:24:50PM +0200, Alexander Gordeev wrote:
> > On Thu, Oct 10, 2019 at 02:30:34PM +0300, Dan Carpenter wrote:
> > > On Thu, Oct 10, 2019 at 10:51:45AM +0200, Alexander Gordeev wrote:
> > > > On Wed, Oct 09,
On Tue, Oct 15, 2019 at 01:24:50PM +0200, Alexander Gordeev wrote:
> On Thu, Oct 10, 2019 at 02:30:34PM +0300, Dan Carpenter wrote:
> > On Thu, Oct 10, 2019 at 10:51:45AM +0200, Alexander Gordeev wrote:
> > > On Wed, Oct 09, 2019 at 09:53:23PM +0300, Dan Carpenter wrote:
> > > > > > > + u32
On Tue, Oct 15, 2019 at 04:03:21PM +0530, Vinod Koul wrote:
> what kind of device is this? I dont think we want these and the ones
> coming below as part of kernel kconfig!
Yes, I have already been pointed out on this and will put those as
kernel module parameters in the next version. The device
On Tue, Oct 15, 2019 at 02:41:08PM +0300, Dan Carpenter wrote:
> > > > > > > > + spin_lock(lock);
> >
> > [*]
>
> [ snip ]
>
> > I struggle to realize how the spinlock I use (see [*] above) does not
> > protect the reader.
>
> Argh I'm really sorry. I completely didn't see the
On Tue, Oct 15, 2019 at 01:24:50PM +0200, Alexander Gordeev wrote:
> On Thu, Oct 10, 2019 at 02:30:34PM +0300, Dan Carpenter wrote:
> > On Thu, Oct 10, 2019 at 10:51:45AM +0200, Alexander Gordeev wrote:
> > > On Wed, Oct 09, 2019 at 09:53:23PM +0300, Dan Carpenter wrote:
> > > > > > > + u32
On Thu, Oct 10, 2019 at 02:30:34PM +0300, Dan Carpenter wrote:
> On Thu, Oct 10, 2019 at 10:51:45AM +0200, Alexander Gordeev wrote:
> > On Wed, Oct 09, 2019 at 09:53:23PM +0300, Dan Carpenter wrote:
> > > > > > + u32 *rd_flags = hw->dma_desc_table_rd.cpu_addr->flags;
> > > > > > + u32
On 09-10-19, 12:12, Alexander Gordeev wrote:
> +config AVALON_DMA_CTRL_BASE
> + hex "Avalon DMA controllers base"
> + default "0x"
what kind of device is this? I dont think we want these and the ones
coming below as part of kernel kconfig!
> +// SPDX-License-Identifier: GPL-2.0
On Thu, Oct 10, 2019 at 10:51:45AM +0200, Alexander Gordeev wrote:
> On Wed, Oct 09, 2019 at 09:53:23PM +0300, Dan Carpenter wrote:
> > > > > + u32 *rd_flags = hw->dma_desc_table_rd.cpu_addr->flags;
> > > > > + u32 *wr_flags = hw->dma_desc_table_wr.cpu_addr->flags;
> > > > > + struct
On Wed, Oct 09, 2019 at 09:53:23PM +0300, Dan Carpenter wrote:
> > > > + u32 *rd_flags = hw->dma_desc_table_rd.cpu_addr->flags;
> > > > + u32 *wr_flags = hw->dma_desc_table_wr.cpu_addr->flags;
> > > > + struct avalon_dma_desc *desc;
> > > > + struct virt_dma_desc *vdesc;
>
On Wed, Oct 09, 2019 at 04:58:12PM +0200, Alexander Gordeev wrote:
> On Wed, Oct 09, 2019 at 03:14:41PM +0300, Dan Carpenter wrote:
> > > +config AVALON_DMA_PCI_VENDOR_ID
> > > + hex "PCI vendor ID"
> > > + default "0x1172"
> > > +
> > > +config AVALON_DMA_PCI_DEVICE_ID
> > > + hex "PCI device ID"
On Wed, Oct 09, 2019 at 03:14:41PM +0300, Dan Carpenter wrote:
> > +config AVALON_DMA_PCI_VENDOR_ID
> > + hex "PCI vendor ID"
> > + default "0x1172"
> > +
> > +config AVALON_DMA_PCI_DEVICE_ID
> > + hex "PCI device ID"
> > + default "0xe003"
>
> This feels wrong. Why isn't it known in
On Wed, Oct 09, 2019 at 12:12:30PM +0200, Alexander Gordeev wrote:
> +static int setup_dma_descs(struct dma_desc *dma_descs,
> +struct avalon_dma_desc *desc)
> +{
> + struct scatterlist *sg_stop;
> + unsigned int sg_set;
> + int ret;
> +
> + ret =
On Wed, Oct 09, 2019 at 12:12:30PM +0200, Alexander Gordeev wrote:
> Support Avalon-MM DMA Interface for PCIe used in hard IPs for
> Intel Arria, Cyclone or Stratix FPGAs.
>
> CC: Michael Chen
> CC: de...@driverdev.osuosl.org
> CC: dmaeng...@vger.kernel.org
>
> Signed-off-by: Alexander Gordeev
Support Avalon-MM DMA Interface for PCIe used in hard IPs for
Intel Arria, Cyclone or Stratix FPGAs.
CC: Michael Chen
CC: de...@driverdev.osuosl.org
CC: dmaeng...@vger.kernel.org
Signed-off-by: Alexander Gordeev
---
drivers/dma/Kconfig | 2 +
drivers/dma/Makefile |
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