BMC/Intel-BMC/linux.git/drivers/hwtracing/intel_th, branch dev-4.6

intel_th: Use real device index in the node names

2016-02-20T22:09:14+00:00

Most of the intel_th core supports multiple co-existing TH devices, except for output device nodes, where intel_th device id is hardcoded to be zero. Fix this by fetching the actual intel_th device id from the parent device's drvdata. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: Set root device's drvdata early

2016-02-20T22:09:14+00:00

Already during the subdevice initialization time, devices will need to reference Intel TH controller descriptor structure. This patch moves setting the drvdata from the pci glue to intel_th core, before subdevices are populated. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: sth: Sanitize packet callback's return values

2016-02-20T22:09:14+00:00

According to the stm class interface, the packet callback should return an error if it is asked to generate packets that it doesn't support. When it succeeds, it should return number of bytes consumed from its payload. Currently, for FLAG packet it mistakenly returns 1. This patch addresses these issues. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: msu: Release resources on read error

2016-02-20T22:09:14+00:00

Right now, reading from msc character device will leak its's user count on read error. This patch makes sure resources are released when there is no data left to read from the buffer. Signed-off-by: Laurent FERT Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: msu: Fix offset for wrapped block

2016-02-20T22:09:14+00:00

Fix offset for the second pass on the wrapped block when iterating over memory in multi-block mode, otherwise wrong part of the block will get copied. Signed-off-by: Laurent FERT Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: Update scratchpad bits according to enabled output activity

2016-02-20T22:09:14+00:00

Intel TH implements a scratchpad register to indicate to the firmware and external debuggers what trace configuration is enabled so that everybody plays nicely together. The register is a bit field and the bit assignment convention is described in the developer's manual. This patch enables the driver to automatically set scratchpad register bits according to the output configuration that's enabled. Based on work by Yann Fouassier. Signed-off-by: Yann Fouassier Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: gth: Remove commented-out code

2016-02-20T22:09:14+00:00

There's a commented-out function in the GTH driver that's a leftover from previous versions of the driver, where we tried to inherit the pre-existing configuration, which didn't prove to be a sound idea. This patch removes the function. No functional changes. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: Depend on HAS_IOMEM

2016-02-20T22:09:14+00:00

This driver requires io memory to operate, so don't even consider it for NO_IOMEM architectures. Reported-by: Richard Weinberger Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: pci: Add Broxton SOC support

2016-02-08T06:43:17+00:00

This adds Intel(R) Trace Hub PCI ID for Broxton SOC. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

intel_th: pci: Add Apollo Lake SOC support

2016-02-08T06:43:17+00:00

This adds Intel(R) Trace Hub PCI ID for Apollo Lake SOC. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman