kernel.git/drivers/ata/ahci.c, branch linux-5.8.y

ahci: Add Intel Comet Lake PCH-U PCI ID

2020-04-16T16:26:52Z

Add Intel Comet Lake PCH-U PCI ID to the list of supported controllers. Set default SATA LPM so the SoC can enter S0ix. Signed-off-by: Kai-Heng Feng Signed-off-by: Jens Axboe

ahci: Add Intel Comet Lake PCH RAID PCI ID

2020-04-09T15:31:38Z

Intel Comet Lake should use the default LPM policy for mobile chipsets. So, add the PCI ID to the driver list of supported devices. Signed-off-by: Jian-Hong Pan Signed-off-by: Jens Axboe

ata: ahci: Add sysfs attribute to show remapped NVMe device count

2020-04-07T22:07:38Z

Add a new sysfs attribute to show how many NVMe devices are remapped. Userspace like distro installer can use this info to ask user to change the BIOS setting. Signed-off-by: Kai-Heng Feng Signed-off-by: Jens Axboe

ahci: Add Intel Comet Lake PCH-V PCI ID

2020-03-25T16:29:35Z

Add Intel Comet Lake PCH-V PCI ID to the list of supported controllers. Signed-off-by: Mika Westerberg Signed-off-by: Jens Axboe

ahci: Add Intel Comet Lake PCH-H PCI ID

2020-03-25T16:29:35Z

Add Intel Comet Lake PCH-H PCI ID to the list of supported controllers. Signed-off-by: Mika Westerberg Signed-off-by: Jens Axboe

ahci: Add Intel Comet Lake H RAID PCI ID

2020-03-25T16:29:35Z

Add the PCI ID to the driver list to support this new device. Cc: stable@vger.kernel.org Signed-off-by: Kai-Heng Feng Signed-off-by: Jens Axboe

AHCI: Add support for Loongson 7A1000 SATA controller

2020-03-12T13:44:19Z

Loongson 7A1000 SATA controller uses BAR0 as the base address register. Signed-off-by: Tiezhu Yang Signed-off-by: Jens Axboe

ata: ahci: Add shutdown to freeze hardware resources of ahci

2020-01-30T04:02:15Z

device_shutdown() called from reboot or power_shutdown expect all devices to be shutdown. Same is true for even ahci pci driver. As no ahci shutdown function is implemented, the ata subsystem always remains alive with DMA & interrupt support. File system related calls should not be honored after device_shutdown(). So defining ahci pci driver shutdown to freeze hardware (mask interrupt, stop DMA engine and free DMA resources). Signed-off-by: Prabhakar Kushwaha Signed-off-by: Jens Axboe

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping

2019-11-28T19:16:43Z

Pull dma-mapping updates from Christoph Hellwig: - improve dma-debug scalability (Eric Dumazet) - tiny dma-debug cleanup (Dan Carpenter) - check for vmap memory in dma_map_single (Kees Cook) - check for dma_addr_t overflows in dma-direct when using DMA offsets (Nicolas Saenz Julienne) - switch the x86 sta2x11 SOC to use more generic DMA code (Nicolas Saenz Julienne) - fix arm-nommu dma-ranges handling (Vladimir Murzin) - use __initdata in CMA (Shyam Saini) - replace the bus dma mask with a limit (Nicolas Saenz Julienne) - merge the remapping helpers into the main dma-direct flow (me) - switch xtensa to the generic dma remap handling (me) - various cleanups around dma_capable (me) - remove unused dev arguments to various dma-noncoherent helpers (me) * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: * tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping: (22 commits) dma-mapping: treat dev->bus_dma_mask as a DMA limit dma-direct: exclude dma_direct_map_resource from the min_low_pfn check dma-direct: don't check swiotlb=force in dma_direct_map_resource dma-debug: clean up put_hash_bucket() powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys dma-direct: avoid a forward declaration for phys_to_dma dma-direct: unify the dma_capable definitions dma-mapping: drop the dev argument to arch_sync_dma_for_* x86/PCI: sta2x11: use default DMA address translation dma-direct: check for overflows on 32 bit DMA addresses dma-debug: increase HASH_SIZE dma-debug: reorder struct dma_debug_entry fields xtensa: use the generic uncached segment support dma-mapping: merge the generic remapping helpers into dma-direct dma-direct: provide mmap and get_sgtable method overrides dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages dma-direct: remove __dma_direct_free_pages usb: core: Remove redundant vmap checks kernel: dma-contiguous: mark CMA parameters __initdata/__initconst dma-debug: add a schedule point in debug_dma_dump_mappings() ...

dma-mapping: treat dev->bus_dma_mask as a DMA limit

2019-11-21T17:14:35Z

Using a mask to represent bus DMA constraints has a set of limitations. The biggest one being it can only hold a power of two (minus one). The DMA mapping code is already aware of this and treats dev->bus_dma_mask as a limit. This quirk is already used by some architectures although still rare. With the introduction of the Raspberry Pi 4 we've found a new contender for the use of bus DMA limits, as its PCIe bus can only address the lower 3GB of memory (of a total of 4GB). This is impossible to represent with a mask. To make things worse the device-tree code rounds non power of two bus DMA limits to the next power of two, which is unacceptable in this case. In the light of this, rename dev->bus_dma_mask to dev->bus_dma_limit all over the tree and treat it as such. Note that dev->bus_dma_limit should contain the higher accessible DMA address. Signed-off-by: Nicolas Saenz Julienne Reviewed-by: Robin Murphy Signed-off-by: Christoph Hellwig