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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2015-09-22 15:47:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 20:28:58 +0100 |
| commit | 14cdbf041788f150ec3b323583b80bfd5775f73e (patch) | |
| tree | 1e0236ddb73b20cfd4ffa047a37dafb4bd470aa9 /drivers/hwtracing/intel_th/pti.h | |
| parent | ba82664c134ef7ab97808f09a3c5e894b0a4900d (diff) | |
| download | linux-14cdbf041788f150ec3b323583b80bfd5775f73e.tar.bz2 | |
intel_th: Add PTI output driver
Parallel Trace Interface (PTI) unit is a trace output device that sends
data over a PTI port.
The driver provides interfaces to configure bus width, bus clock divider
and mode. Tracing is enabled via output device's "active" attribute.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/intel_th/pti.h')
| -rw-r--r-- | drivers/hwtracing/intel_th/pti.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/pti.h b/drivers/hwtracing/intel_th/pti.h new file mode 100644 index 000000000000..20883f5628cf --- /dev/null +++ b/drivers/hwtracing/intel_th/pti.h @@ -0,0 +1,29 @@ +/* + * Intel(R) Trace Hub PTI output data structures + * + * Copyright (C) 2014-2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + */ + +#ifndef __INTEL_TH_STH_H__ +#define __INTEL_TH_STH_H__ + +enum { + REG_PTI_CTL = 0x1c00, +}; + +#define PTI_EN BIT(0) +#define PTI_FCEN BIT(1) +#define PTI_MODE 0xf0 +#define PTI_CLKDIV 0x000f0000 +#define PTI_PATGENMODE 0x00f00000 + +#endif /* __INTEL_TH_STH_H__ */ |