kernel/drivers/parisc, branch linux-5.1.y

parisc: Use implicit space register selection for loading the coherence index of I/O pdirs

2019-06-11T10:19:15Z

commit 63923d2c3800919774f5c651d503d1dd2adaddd5 upstream. We only support I/O to kernel space. Using %sr1 to load the coherence index may be racy unless interrupts are disabled. This patch changes the code used to load the coherence index to use implicit space register selection. This saves one instruction and eliminates the race. Tested on rp3440, c8000 and c3750. Signed-off-by: John David Anglin Cc: stable@vger.kernel.org Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman

parisc: Skip registering LED when running in QEMU

2019-05-25T16:16:20Z

commit b438749044356dd1329c45e9b5a9377b6ea13eb2 upstream. No need to spend CPU cycles when we run on QEMU. Signed-off-by: Helge Deller CC: stable@vger.kernel.org # v4.9+ Signed-off-by: Greg Kroah-Hartman

Revert: parisc: Use F_EXTEND() macro in iosapic code

2019-04-06T17:07:55Z

Revert parts of commit 97d7e2e3fd8a ("parisc: Use F_EXTEND() macro in iosapic code"). It breaks booting the 32-bit kernel on some machines. Reported-by: Sven Schnelle Tested-by: Sven Schnelle Fixes: 97d7e2e3fd8a ("parisc: Use F_EXTEND() macro in iosapic code") Signed-off-by: Helge Deller

Merge tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping

2019-03-10T18:54:48Z

Pull DMA mapping updates from Christoph Hellwig: - add debugfs support for dumping dma-debug information (Corentin Labbe) - Kconfig cleanups (Andy Shevchenko and me) - debugfs cleanups (Greg Kroah-Hartman) - improve dma_map_resource and use it in the media code - arch_setup_dma_ops / arch_teardown_dma_ops cleanups - various small cleanups and improvements for the per-device coherent allocator - make the DMA mask an upper bound and don't fail "too large" dma mask in the remaning two architectures - this will allow big driver cleanups in the following merge windows * tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping: (21 commits) Documentation/DMA-API-HOWTO: update dma_mask sections sparc64/pci_sun4v: allow large DMA masks sparc64/iommu: allow large DMA masks sparc64: refactor the ali DMA quirk ccio: allow large DMA masks dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag dma-mapping: remove dma_mark_declared_memory_occupied dma-mapping: move CONFIG_DMA_CMA to kernel/dma/Kconfig dma-mapping: improve selection of dma_declare_coherent availability dma-mapping: remove an incorrect __iommem annotation of: select OF_RESERVED_MEM automatically device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT mfd/sm501: depend on HAS_DMA dma-mapping: add a kconfig symbol for arch_teardown_dma_ops availability dma-mapping: add a kconfig symbol for arch_setup_dma_ops availability dma-mapping: move debug configuration options to kernel/dma dma-debug: add dumping facility via debugfs dma: debug: no need to check return value of debugfs_create functions videobuf2: replace a layering violation with dma_map_resource dma-mapping: don't BUG when calling dma_map_resource on RAM ...

parisc: Use F_EXTEND() macro in iosapic code

2019-02-21T19:37:12Z

and reduce include file list. Signed-off-by: Helge Deller

parisc: remove the HBA_DATA macro

2019-02-21T19:37:12Z

No need to hide a cast in a macro, especially as all users have cleaner ways to archive the result than blind casting. Signed-off-by: Christoph Hellwig Signed-off-by: Helge Deller

parisc/lba_pci: use container_of in LBA_DEV

2019-02-21T19:37:12Z

Use the type safe container_of macros instead of a blind cast in LBA_DEV, and turn the macro into an inline function. Signed-off-by: Christoph Hellwig Signed-off-by: Helge Deller

parisc/dino: use container_of in DINO_DEV

2019-02-21T19:37:12Z

Use the type safe container_of macros instead of a blind cast in DINO_DEV, and turn the macro into an inline function. Signed-off-by: Christoph Hellwig Signed-off-by: Helge Deller

parisc: properly type the return value of parisc_walk_tree

2019-02-21T19:37:12Z

Signed-off-by: Christoph Hellwig Signed-off-by: Helge Deller

parisc: turn GET_IOC into an inline function

2019-02-21T19:37:12Z

This makes the function both more readable and more typesafe. Signed-off-by: Christoph Hellwig Signed-off-by: Helge Deller