#ifndef __PXA3XX_GCU_H__ #define __PXA3XX_GCU_H__ #include /* Number of 32bit words in display list (ring buffer). */ #define PXA3XX_GCU_BUFFER_WORDS ((256 * 1024 - 256) / 4) /* To be increased when breaking the ABI */ #define PXA3XX_GCU_SHARED_MAGIC 0x30000001 #define PXA3XX_GCU_BATCH_WORDS 8192 struct pxa3xx_gcu_shared { u32 buffer[PXA3XX_GCU_BUFFER_WORDS]; bool hw_running; unsigned long buffer_phys; unsigned int num_words; unsigned int num_writes; unsigned int num_done; unsigned int num_interrupts; unsigned int num_wait_idle; unsigned int num_wait_free; unsigned int num_idle; u32 magic; }; /* Initialization and synchronization. * Hardware is started upon write(). */ #define PXA3XX_GCU_IOCTL_RESET _IO('G', 0) #define PXA3XX_GCU_IOCTL_WAIT_IDLE _IO('G', 2) #endif /* __PXA3XX_GCU_H__ */ t'> net-next plumbingsTobias Klauser
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /net/tipc/bearer.c
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net/tipc/bearer.c')