litmus-rt.git - The LITMUS^RT kernel.

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The LITMUS^RT kernel.

Bjoern Brandenburg

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	Commit message (Expand)	Author	Age
*	perf script: Finish the rename from trace to script	Arnaldo Carvalho de Melo	2010-12-25
*	perf trace scripting: remove system-wide param from shell scripts	Tom Zanussi	2010-11-10
*	perf python scripting: Add futex-contention script	Arnaldo Carvalho de Melo	2010-10-26
*	perf trace: Use $PERF_EXEC_PATH in canned report scripts	Ben Hutchings	2010-10-23
*	perf: Add a script to show packets processing	Koki Sanagi	2010-09-07
*	perf: New migration tool overview	Frederic Weisbecker	2010-08-01
*	perf/trace/scripting: syscall-counts script cleanup	Tom Zanussi	2010-05-10
*	perf/trace/scripting: syscall-counts-by-pid script cleanup	Tom Zanussi	2010-05-10
*	perf/trace/scripting: failed-syscalls-by-pid script cleanup	Tom Zanussi	2010-05-10
*	perf: Remove leftover useless options to record trace events from scripts	Frederic Weisbecker	2010-04-30
*	perf trace/scripting: Enable scripting shell scripts for live mode	Tom Zanussi	2010-04-14
*	perf trace/scripting: Add rwtop and sctop scripts	Tom Zanussi	2010-04-14
*	perf/scripts: Add syscall tracing scripts	Tom Zanussi	2010-02-24

stributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ** **----------------------------------------------------------------------------- */ #include <linux/module.h> #include <linux/device.h> #include <linux/mca.h> #include <linux/string.h> /** * mca_device_read_stored_pos - read POS register from stored data * @mca_dev: device to read from * @reg: register to read from * * Fetch a POS value that was stored at boot time by the kernel * when it scanned the MCA space. The register value is returned. * Missing or invalid registers report 0. */ unsigned char mca_device_read_stored_pos(struct mca_device *mca_dev, int reg) { if(reg < 0 || reg >= 8) return 0; return mca_dev->pos[reg]; } EXPORT_SYMBOL(mca_device_read_stored_pos); /** * mca_device_read_pos - read POS register from card * @mca_dev: device to read from * @reg: register to read from * * Fetch a POS value directly from the hardware to obtain the * current value. This is much slower than * mca_device_read_stored_pos and may not be invoked from * interrupt context. It handles the deep magic required for * onboard devices transparently. */ unsigned char mca_device_read_pos(struct mca_device *mca_dev, int reg) { struct mca_bus *mca_bus = to_mca_bus(mca_dev->dev.parent); return mca_bus->f.mca_read_pos(mca_dev, reg); return mca_dev->pos[reg]; } EXPORT_SYMBOL(mca_device_read_pos); /** * mca_device_write_pos - read POS register from card * @mca_dev: device to write pos register to * @reg: register to write to * @byte: byte to write to the POS registers * * Store a POS value directly to the hardware. You should not * normally need to use this function and should have a very good * knowledge of MCA bus before you do so. Doing this wrongly can * damage the hardware. * * This function may not be used from interrupt context. * */ void mca_device_write_pos(struct mca_device *mca_dev, int reg, unsigned char byte) { struct mca_bus *mca_bus = to_mca_bus(mca_dev->dev.parent); mca_bus->f.mca_write_pos(mca_dev, reg, byte); } EXPORT_SYMBOL(mca_device_write_pos); /** * mca_device_transform_irq - transform the ADF obtained IRQ * @mca_device: device whose irq needs transforming * @irq: input irq from ADF * * MCA Adapter Definition Files (ADF) contain irq, ioport, memory * etc. definitions. In systems with more than one bus, these need * to be transformed through bus mapping functions to get the real * system global quantities. * * This function transforms the interrupt number and returns the * transformed system global interrupt */ int mca_device_transform_irq(struct mca_device *mca_dev, int irq) { struct mca_bus *mca_bus = to_mca_bus(mca_dev->dev.parent); return mca_bus->f.mca_transform_irq(mca_dev, irq); } EXPORT_SYMBOL(mca_device_transform_irq); /** * mca_device_transform_ioport - transform the ADF obtained I/O port * @mca_device: device whose port needs transforming * @ioport: input I/O port from ADF * * MCA Adapter Definition Files (ADF) contain irq, ioport, memory * etc. definitions. In systems with more than one bus, these need * to be transformed through bus mapping functions to get the real * system global quantities. * * This function transforms the I/O port number and returns the * transformed system global port number. * * This transformation can be assumed to be linear for port ranges. */ int mca_device_transform_ioport(struct mca_device *mca_dev, int port) { struct mca_bus *mca_bus = to_mca_bus(mca_dev->dev.parent); return mca_bus->f.mca_transform_ioport(mca_dev, port); } EXPORT_SYMBOL(mca_device_transform_ioport); /** * mca_device_transform_memory - transform the ADF obtained memory * @mca_device: device whose memory region needs transforming * @mem: memory region start from ADF * * MCA Adapter Definition Files (ADF) contain irq, ioport, memory * etc. definitions. In systems with more than one bus, these need * to be transformed through bus mapping functions to get the real * system global quantities. * * This function transforms the memory region start and returns the * transformed system global memory region (physical). * * This transformation can be assumed to be linear for region ranges. */ void *mca_device_transform_memory(struct mca_device *mca_dev, void *mem) { struct mca_bus *mca_bus = to_mca_bus(mca_dev->dev.parent); return mca_bus->f.mca_transform_memory(mca_dev, mem); } EXPORT_SYMBOL(mca_device_transform_memory); /** * mca_device_claimed - check if claimed by driver * @mca_dev: device to check * * Returns 1 if the slot has been claimed by a driver */ int mca_device_claimed(struct mca_device *mca_dev) { return mca_dev->driver_loaded; } EXPORT_SYMBOL(mca_device_claimed); /** * mca_device_set_claim - set the claim value of the driver * @mca_dev: device to set value for * @val: claim value to set (1 claimed, 0 unclaimed) */ void mca_device_set_claim(struct mca_device *mca_dev, int val) { mca_dev->driver_loaded = val; } EXPORT_SYMBOL(mca_device_set_claim); /** * mca_device_status - get the status of the device * @mca_device: device to get * * returns an enumeration of the device status: * * MCA_ADAPTER_NORMAL adapter is OK. * MCA_ADAPTER_NONE no adapter at device (should never happen). * MCA_ADAPTER_DISABLED adapter is disabled. * MCA_ADAPTER_ERROR adapter cannot be initialised. */ enum MCA_AdapterStatus mca_device_status(struct mca_device *mca_dev) { return mca_dev->status; } EXPORT_SYMBOL(mca_device_status); /** * mca_device_set_name - set the name of the device * @mca_device: device to set the name of * @name: name to set */ void mca_device_set_name(struct mca_device *mca_dev, const char *name) { if(!mca_dev) return; strlcpy(mca_dev->name, name, sizeof(mca_dev->name)); } EXPORT_SYMBOL(mca_device_set_name);