litmus-rt-edfsc.git - LITMUS^RT with the EDF-SC plugin for Real-Time Systems journal paper

	Commit message (Collapse)	Author	Age
*	misc: mic: Fix crash when MIC reset is invoked in RESET_FAILED state	Ashutosh Dixit	2016-02-08
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	This patch fixes the following crash seen when MIC reset is invoked in RESET_FAILED state due to device_del being called a second time on an already deleted device: [<ffffffff813b2295>] device_del+0x45/0x1d0 [<ffffffff813b243e>] device_unregister+0x1e/0x60 [<ffffffffa040f1c2>] scif_unregister_device+0x12/0x20 [scif_bus] [<ffffffffa042f75a>] cosm_stop+0xaa/0xe0 [mic_cosm] [<ffffffffa042f844>] cosm_reset_trigger_work+0x14/0x20 [mic_cosm] The fix consists in realizing that because cosm_reset changes the state to MIC_RESETTING, cosm_stop needs the previous state, before it changed to MIC_RESETTING, to decide whether a hw_ops->stop had previously been issued. This is now provided in a new cosm_device member cdev->prev_state. Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
*	misc: mic: Coprocessor State Management (COSM) driver	Ashutosh Dixit	2015-10-04
	The COSM driver allows boot, shutdown and reset of Intel MIC devices via sysfs. This functionality was previously present in the Intel MIC host driver but has now been taken out into a separate driver so that it can be shared between multiple generations of Intel MIC products. The sysfs kernel ABI used by the COSM driver is the same as that defined originally for the MIC host driver in Documentation/ABI/testing/sysfs-class-mic.txt. The COSM driver also contains support for dumping the MIC card log_buf and doing a "force reset" for the card via debugfs. The OSPM support present in the MIC host driver has now largely been moved to user space and only a small required OSPM functionality is now present in the driver. Reviewed-by: Nikhil Rao <nikhil.rao@intel.com> Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>