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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8116db57cf
Add support for asserting window switch trigger when tracing to MSU output ports. This allows for software controlled switching between windows of the MSU buffer, which can be used for double buffering while exporting the trace data further from the MSU. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Intel(R) Trace Hub Global Trace Hub (GTH) data structures
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*
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* Copyright (C) 2014-2015 Intel Corporation.
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*/
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#ifndef __INTEL_TH_GTH_H__
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#define __INTEL_TH_GTH_H__
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/* Map output port parameter bits to symbolic names */
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#define TH_OUTPUT_PARM(name) \
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TH_OUTPUT_ ## name
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enum intel_th_output_parm {
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/* output port type */
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TH_OUTPUT_PARM(port),
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/* generate NULL packet */
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TH_OUTPUT_PARM(null),
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/* packet drop */
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TH_OUTPUT_PARM(drop),
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/* port in reset state */
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TH_OUTPUT_PARM(reset),
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/* flush out data */
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TH_OUTPUT_PARM(flush),
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/* mainenance packet frequency */
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TH_OUTPUT_PARM(smcfreq),
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};
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/*
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* Register offsets
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*/
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enum {
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REG_GTH_GTHOPT0 = 0x00, /* Output ports 0..3 config */
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REG_GTH_GTHOPT1 = 0x04, /* Output ports 4..7 config */
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REG_GTH_SWDEST0 = 0x08, /* Switching destination masters 0..7 */
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REG_GTH_GSWTDEST = 0x88, /* Global sw trace destination */
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REG_GTH_SMCR0 = 0x9c, /* STP mainenance for ports 0/1 */
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REG_GTH_SMCR1 = 0xa0, /* STP mainenance for ports 2/3 */
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REG_GTH_SMCR2 = 0xa4, /* STP mainenance for ports 4/5 */
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REG_GTH_SMCR3 = 0xa8, /* STP mainenance for ports 6/7 */
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REG_GTH_SCR = 0xc8, /* Source control (storeEn override) */
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REG_GTH_STAT = 0xd4, /* GTH status */
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REG_GTH_SCR2 = 0xd8, /* Source control (force storeEn off) */
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REG_GTH_DESTOVR = 0xdc, /* Destination override */
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REG_GTH_SCRPD0 = 0xe0, /* ScratchPad[0] */
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REG_GTH_SCRPD1 = 0xe4, /* ScratchPad[1] */
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REG_GTH_SCRPD2 = 0xe8, /* ScratchPad[2] */
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REG_GTH_SCRPD3 = 0xec, /* ScratchPad[3] */
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REG_TSCU_TSUCTRL = 0x2000, /* TSCU control register */
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REG_TSCU_TSCUSTAT = 0x2004, /* TSCU status register */
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/* Common Capture Sequencer (CTS) registers */
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REG_CTS_C0S0_EN = 0x30c0, /* clause_event_enable_c0s0 */
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REG_CTS_C0S0_ACT = 0x3180, /* clause_action_control_c0s0 */
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REG_CTS_STAT = 0x32a0, /* cts_status */
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REG_CTS_CTL = 0x32a4, /* cts_control */
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};
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/* waiting for Pipeline Empty bit(s) to assert for GTH */
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#define GTH_PLE_WAITLOOP_DEPTH 10000
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#define TSUCTRL_CTCRESYNC BIT(0)
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#define TSCUSTAT_CTCSYNCING BIT(1)
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/* waiting for Trigger status to assert for CTS */
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#define CTS_TRIG_WAITLOOP_DEPTH 10000
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#define CTS_EVENT_ENABLE_IF_ANYTHING BIT(31)
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#define CTS_ACTION_CONTROL_STATE_OFF 27
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#define CTS_ACTION_CONTROL_SET_STATE(x) \
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(((x) & 0x1f) << CTS_ACTION_CONTROL_STATE_OFF)
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#define CTS_ACTION_CONTROL_TRIGGER BIT(4)
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#define CTS_STATE_IDLE 0x10u
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#define CTS_CTL_SEQUENCER_ENABLE BIT(0)
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#endif /* __INTEL_TH_GTH_H__ */
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