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* UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel ↵David Howells2012-10-021-1/+1
| | | | | | | | | | | | system headers Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
* ALSA: mpu401: clean up interrupt specificationClemens Ladisch2011-09-141-3/+4
| | | | | | | | | | | | | | | | | | | | | | | The semantics of snd_mpu401_uart_new()'s interrupt parameters are somewhat counterintuitive: To prevent the function from allocating its own interrupt, either the irq number must be invalid, or the irq_flags parameter must be zero. At the same time, the irq parameter being invalid specifies that the mpu401 code has to work without an interrupt allocated by the caller. This implies that, if there is an interrupt and it is allocated by the caller, the irq parameter must be set to a valid-looking number which then isn't actually used. With the removal of IRQF_DISABLED, zero becomes a valid irq_flags value, which forces us to handle the parameters differently. This patch introduces a new flag MPU401_INFO_IRQ_HOOK for when the device interrupt is handled by the caller, and makes the allocation of the interrupt to depend only on the irq parameter. As suggested by Takashi, the irq_flags parameter was dropped because, when used, it had the constant value IRQF_DISABLED. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add MPU401_INFO_NO_ACK bitflagTakashi Iwai2008-04-291-0/+1
| | | | | | | | Added MPU401_INFO_NO_ACK bitflag to ignore the ACK check for UART commands. VT172x doesn't handle ACK commands, for example. Tested-by: Pavel Hofman <pavel.hofman@insite.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Define MPU401 registers in sound/mpu401_uart.hTakashi Iwai2008-04-241-0/+15
| | | | | | | Define some MPU401 registers in sound/mpu401_uart.h so that other drivers can refer to them. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela2007-10-161-1/+1
| | | | Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] mpu-401: remove MPU401_INFO_UART_ONLY flagClemens Ladisch2007-10-161-1/+0
| | | | | | | | | | Since the last patch made the ENTER_UART command optional, the enter_uart option and its corresponding flag have become superfluous. The uart_enter option remains for backward compatibility but just prints a warning when used. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] mpu401 - Add MPU401_INFO_UART_ONLY bitflagTakashi Iwai2007-05-111-0/+1
| | | | | | | | | | | Added MPU401_INFO_UART_ONLY bitflag to avoid issueing UART_ENTER command at opening streams. Some devices support only UART mode and give errors to UART_ENTER. A new module option, uart_enter, is added to snd-mpu401 driver. For UART-only devices, set uart_enter=0. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [ALSA] Change an arugment of snd_mpu401_uart_new() to bit flagsTakashi Iwai2006-06-221-2/+12
| | | | | | | | | | Change the 5th argument of snd_mpu401_uart_new() to bit flags instead of a boolean. The argument takes bits that consist of MPU401_INFO_XXX flags. The callers that used the value 1 there are replaced with MPU401_INFO_INTEGRATED. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove xxx_t typedefs: MPU401Takashi Iwai2006-01-031-14/+12
| | | | | | | | Modules: MPU401 UART Remove xxx_t typedefs from the MPU401-UART and MPU401 drivers Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+115
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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