search for: force_nocache

Displaying 8 results from an estimated 8 matches for "force_nocache".

2014 Dec 11
0
[PATCH RFC 3/5] pci: add pci_iomap_range
...ping cookie for a PCI BAR (memory or IO) */ extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, + unsigned offset, + unsigned long minlen, + unsigned long maxlen, + bool force_nocache); /* Create a virtual mapping cookie for a port on a given PCI device. * Do not call this directly, it exists to make it easier for architectures * to override */ diff --git a/lib/pci_iomap.c b/lib/pci_iomap.c index 0d83ea8..1ac4def 100644 --- a/lib/pci_iomap.c +++ b/lib/pci_iomap.c @@ -10,33...
2014 Dec 11
0
[PATCH RFC 3/5] pci: add pci_iomap_range
...ping cookie for a PCI BAR (memory or IO) */ extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, + unsigned offset, + unsigned long minlen, + unsigned long maxlen, + bool force_nocache); /* Create a virtual mapping cookie for a port on a given PCI device. * Do not call this directly, it exists to make it easier for architectures * to override */ diff --git a/lib/pci_iomap.c b/lib/pci_iomap.c index 0d83ea8..1ac4def 100644 --- a/lib/pci_iomap.c +++ b/lib/pci_iomap.c @@ -10,33...
2014 Dec 11
1
[PATCH RFC 3/5] pci: add pci_iomap_range
On Thursday 11 December 2014 21:37:34 Michael S. Tsirkin wrote: > if (flags & IORESOURCE_MEM) { > - if (flags & IORESOURCE_CACHEABLE) > + if (!force_nocache && (flags & IORESOURCE_CACHEABLE)) > return ioremap(start, len); > return ioremap_nocache(start, len); > } > ioremap is the same as ioremap_nocache, so this doesn't really make any sense. IORESOURCE_CACHEABLE is practical...
2014 Dec 11
1
[PATCH RFC 3/5] pci: add pci_iomap_range
On Thursday 11 December 2014 21:37:34 Michael S. Tsirkin wrote: > if (flags & IORESOURCE_MEM) { > - if (flags & IORESOURCE_CACHEABLE) > + if (!force_nocache && (flags & IORESOURCE_CACHEABLE)) > return ioremap(start, len); > return ioremap_nocache(start, len); > } > ioremap is the same as ioremap_nocache, so this doesn't really make any sense. IORESOURCE_CACHEABLE is practical...
2014 Dec 11
6
[PATCH RFC 0/5] virtio_pci: modern driver
Based on Rusty's patches. Coding style and funny jokes are his. Bugs and a star wars reference (should be easy to spot) are mine. Untested, but useful as basis for beginning the qemu work. TODO: = simplify probing: use a common probe function, probe with modern driver first, if that fails - probe with legacy driver. BUGS: ATM legacy driver can win and drive a transitional device
2014 Dec 11
6
[PATCH RFC 0/5] virtio_pci: modern driver
Based on Rusty's patches. Coding style and funny jokes are his. Bugs and a star wars reference (should be easy to spot) are mine. Untested, but useful as basis for beginning the qemu work. TODO: = simplify probing: use a common probe function, probe with modern driver first, if that fails - probe with legacy driver. BUGS: ATM legacy driver can win and drive a transitional device
2013 Mar 21
24
[PATCH 00/22] New virtio PCI layout
I've renewed this again, with some comments from HPA. I've tried to keep the new patches separate, so you can see the changes since we last discussed this (and so it's easy to back it out if we decide it's insane). I haven't even looked at the QEMU side so this is completely untested. Comments gratefully received! Rusty. Michael S Tsirkin (1): pci: add pci_iomap_range
2013 Mar 21
24
[PATCH 00/22] New virtio PCI layout
I've renewed this again, with some comments from HPA. I've tried to keep the new patches separate, so you can see the changes since we last discussed this (and so it's easy to back it out if we decide it's insane). I haven't even looked at the QEMU side so this is completely untested. Comments gratefully received! Rusty. Michael S Tsirkin (1): pci: add pci_iomap_range