Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Am 29.09.20 um 13:09 schrieb Christian König: > Am 29.09.20 um 11:14 schrieb Daniel Vetter: >> On Mon, Sep 28, 2020 at 01:22:13PM +0200, Christian König wrote: >>> Am 28.09.20 um 09:37 schrieb Thomas Zimmermann: Hi Am 28.09.20 um 08:50 schrieb Christian König: > Am 27.09.20 um

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Am 29.09.20 um 11:14 schrieb Daniel Vetter: On Mon, Sep 28, 2020 at 01:22:13PM +0200, Christian König wrote: Am 28.09.20 um 09:37 schrieb Thomas Zimmermann: Hi Am 28.09.20 um 08:50 schrieb Christian König: Am 27.09.20 um 21:16 schrieb Sam Ravnborg: Hi Thomas. struct simap {     union

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

On Mon, Sep 28, 2020 at 01:22:13PM +0200, Christian König wrote: > Am 28.09.20 um 09:37 schrieb Thomas Zimmermann: > > Hi > > > > Am 28.09.20 um 08:50 schrieb Christian König: > > > Am 27.09.20 um 21:16 schrieb Sam Ravnborg: > > > > Hi Thomas. > > > > > > > > > > struct simap { > > > > > >  

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Am 28.09.20 um 09:37 schrieb Thomas Zimmermann: Hi Am 28.09.20 um 08:50 schrieb Christian König: Am 27.09.20 um 21:16 schrieb Sam Ravnborg: Hi Thomas. struct simap {     union {     void __iomem *vaddr_iomem;     void *vaddr;     };     bool is_iomem;

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Hi Am 28.09.20 um 08:50 schrieb Christian König: > Am 27.09.20 um 21:16 schrieb Sam Ravnborg: >> Hi Thomas. >> struct simap {     union {     void __iomem *vaddr_iomem;     void *vaddr;     };     bool is_iomem; }; Wh

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Am 27.09.20 um 21:16 schrieb Sam Ravnborg: Hi Thomas. struct simap { union { void __iomem *vaddr_iomem; void *vaddr; }; bool is_iomem; }; Where simap is a shorthand for system_iomem_map And it could al be stuffed into a include/linux/sima

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Hi Thomas. > > > > struct simap { > >union { > >void __iomem *vaddr_iomem; > >void *vaddr; > >}; > >bool is_iomem; > > }; > > > > Where simap is a shorthand for system_iomem_map > > And it could al be stuffed into a include/linux/simap.h fi

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Hi Sam Am 26.09.20 um 09:13 schrieb Sam Ravnborg: > Hi Thomas. > > Sorry for chiming in late here, have been offline for a while. > > On Fri, Sep 25, 2020 at 01:55:57PM +0200, Thomas Zimmermann wrote: >> Dma-buf provides vmap() and vunmap() for retriving and releasing mappings >> of dma-buf memo

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Hi Thomas. Sorry for chiming in late here, have been offline for a while. On Fri, Sep 25, 2020 at 01:55:57PM +0200, Thomas Zimmermann wrote: > Dma-buf provides vmap() and vunmap() for retriving and releasing mappings > of dma-buf memory in kernel address space. The functions operate with plain >

Re: [PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Hi Thomas, On Fri, Sep 25, 2020 at 01:55:57PM +0200, Thomas Zimmermann wrote: > Dma-buf provides vmap() and vunmap() for retriving and releasing mappings > of dma-buf memory in kernel address space. The functions operate with plain > addresses and the assumption is that the memory can be accessed

[PATCH v3 0/4] dma-buf: Flag vmap'ed memory as system or I/O memory

Dma-buf provides vmap() and vunmap() for retriving and releasing mappings of dma-buf memory in kernel address space. The functions operate with plain addresses and the assumption is that the memory can be accessed with load and store operations. This is not the case on some architectures (e.g., spa