diff options
Diffstat (limited to 'drivers/timing_adapter')
-rw-r--r-- | drivers/timing_adapter/CMakeLists.txt | 23 | ||||
-rw-r--r-- | drivers/timing_adapter/include/timing_adapter.h | 133 | ||||
-rw-r--r-- | drivers/timing_adapter/src/timing_adapter.c | 215 |
3 files changed, 0 insertions, 371 deletions
diff --git a/drivers/timing_adapter/CMakeLists.txt b/drivers/timing_adapter/CMakeLists.txt deleted file mode 100644 index f17eaeb..0000000 --- a/drivers/timing_adapter/CMakeLists.txt +++ /dev/null @@ -1,23 +0,0 @@ -# -# Copyright (c) 2020-2021 Arm Limited. All rights reserved. -# -# SPDX-License-Identifier: Apache-2.0 -# -# Licensed under the Apache License, Version 2.0 (the License); you may -# not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an AS IS BASIS, WITHOUT -# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -add_library(timing_adapter STATIC) -target_include_directories(timing_adapter PUBLIC include) - -target_sources(timing_adapter PRIVATE src/timing_adapter.c) - diff --git a/drivers/timing_adapter/include/timing_adapter.h b/drivers/timing_adapter/include/timing_adapter.h deleted file mode 100644 index ef4f9b9..0000000 --- a/drivers/timing_adapter/include/timing_adapter.h +++ /dev/null @@ -1,133 +0,0 @@ -/* - * Copyright (c) 2019-2021 Arm Limited. All rights reserved. - * - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the License); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an AS IS BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef TIMING_ADAPTER_H_ -#define TIMING_ADAPTER_H_ - -#include <stdint.h> - -#if defined __cplusplus -extern "C" { -#endif - -/** TIMING ADAPTER - * - * The timing adapter is an AXI-to-AXI bridge for providing well-defined memory timing - * to allow performance evaluation of an AXI master. The bridge works by delaying the - * responses from the memory according to run-time configurable parameters that can be - * set in the timing adapter. Parameters include read and write response latencies, - * no. of outstanding transactions, and a model of interferring traffic. - */ - -struct timing_adapter { - uintptr_t base_addr; -}; - -/** LIMITATIONS FOR FVP: - * - * - TA_MODE is hardcoded to 1 (one) at all times. - * - Only TA_PERFCTRL_AWTRANS and TA_PERFCTRL_ARTRANS support is - * implemented for the performance counter. - */ - -struct timing_adapter_settings { - uint32_t maxr; // 6-bit field. Max no. of pending reads. 0=infinite - uint32_t maxw; // 6-bit field. Max no. of pending writes. 0=infinite - uint32_t maxrw; // 6-bit field. Max no. of pending reads+writes. 0=infinite - uint32_t rlatency; // 12-bit field. Minimum latency (clock cycles) from AVALID to RVALID. - uint32_t wlatency; // 12-bit field. Minimum latency (clock cycles) from WVALID&WLAST to BVALID. - uint32_t pulse_on; // No. of cycles addresses let through (0-65535). - uint32_t pulse_off; // No. of cycles addresses blocked (0-65535). - uint32_t bwcap; // 16-bit field. Max no. of 64-bit words transfered per pulse cycle 0=infinite - uint32_t perfctrl; // 6-bit field selecting an event for event counter 0=default - uint32_t perfcnt; // 32-bit event counter - uint32_t mode; // Bit 0: 1=enable dynamic clocking to avoid underrun - // Bit 1: 1=enable random AR reordering (0=default) - // Bit 2: 1=enable random R reordering (0=default) - // Bit 3: 1=enable random B reordering (0=default) - // Bit 11-4: Frequency scale 0=full speed, 255=(1/256) speed - uint32_t maxpending; // (Read-only) Max supported value in MAXR and MAXW registers - uint32_t histbin; // Controlls which histogram bin (0-15) that should be accessed by HISTCNT. - uint32_t histcnt; // 32-bit field. Read/write the selected histogram bin. -}; - -enum timing_adapter_perfctrl_settings { - TA_PERFCTRL_OFF = 0, // Disable performance counting - TA_PERFCTRL_CYCLES, // Count all cycles (root clock) - TA_PERFCTRL_UNDERRUN_R, // Unable to meet RLATENCY deadline - TA_PERFCTRL_UNDERRUN_B, // Unable to meet WLATENCY deadline - TA_PERFCTRL_OVERFLOW_AR, // Internal read address FIFO full - TA_PERFCTRL_OVERFLOW_AW, // Internal write address FIFO full - TA_PERFCTRL_OVERFLOW_R, // Internal read data FIFO full - TA_PERFCTRL_OVERFLOW_W, // Internal write data FIFO full - TA_PERFCTRL_OVERFLOW_B, // Internal write response FIFO full - TA_PERFCTRL_RREADY, // RREADY wait state - TA_PERFCTRL_BREADY, // BREADY wait state - TA_PERFCTRL_RTRANS, // Handshake on R channel - TA_PERFCTRL_WTRANS, // Handshake on W channel - TA_PERFCTRL_BTRANS, // Handshake on B channel - TA_PERFCTRL_ARTRANS, // Handshake on AR channel - TA_PERFCTRL_AWTRANS, // Handshake on AW channel - TA_PERFCTRL_ARQTIME, // Histogram of how much time spent with outstanding read transactions - TA_PERFCTRL_AWQTIME, // Histogram of how much time spent with outstanding write transactions - TA_PERFCTRL_MCLK_ON, // Count cycles when DUT clock is on - TA_PERFCTRL_MCLK_OFF, // Count cycles when DUT clock is off - TA_PERFCTRL_ARLEN0 = 32, // Handshake on AR channel with ARLEN=0 - TA_PERFCTRL_AWLEN0 = 48 // Handshake on AW channel with AWLEN=0 -}; - -int ta_init(struct timing_adapter *ta, uintptr_t base_addr); -void ta_uninit(struct timing_adapter *ta); - -void ta_set_all(struct timing_adapter *ta, struct timing_adapter_settings *in); -void ta_set_maxr(struct timing_adapter *ta, uint32_t val); -void ta_set_maxw(struct timing_adapter *ta, uint32_t val); -void ta_set_maxrw(struct timing_adapter *ta, uint32_t val); -void ta_set_rlatency(struct timing_adapter *ta, uint32_t val); -void ta_set_wlatency(struct timing_adapter *ta, uint32_t val); -void ta_set_pulse_on(struct timing_adapter *ta, uint32_t val); -void ta_set_pulse_off(struct timing_adapter *ta, uint32_t val); -void ta_set_bwcap(struct timing_adapter *ta, uint32_t val); -void ta_set_perfctrl(struct timing_adapter *ta, uint32_t val); -void ta_set_perfcnt(struct timing_adapter *ta, uint32_t val); -void ta_set_mode(struct timing_adapter *ta, uint32_t val); -void ta_set_histbin(struct timing_adapter *ta, uint32_t val); -void ta_set_histcnt(struct timing_adapter *ta, uint32_t val); - -void ta_get_all(struct timing_adapter *ta, struct timing_adapter_settings *out); -uint32_t ta_get_maxr(struct timing_adapter *ta); -uint32_t ta_get_maxw(struct timing_adapter *ta); -uint32_t ta_get_maxrw(struct timing_adapter *ta); -uint32_t ta_get_rlatency(struct timing_adapter *ta); -uint32_t ta_get_wlatency(struct timing_adapter *ta); -uint32_t ta_get_pulse_on(struct timing_adapter *ta); -uint32_t ta_get_pulse_off(struct timing_adapter *ta); -uint32_t ta_get_bwcap(struct timing_adapter *ta); -uint32_t ta_get_perfctrl(struct timing_adapter *ta); -uint32_t ta_get_perfcnt(struct timing_adapter *ta); -uint32_t ta_get_mode(struct timing_adapter *ta); -uint32_t ta_get_maxpending(struct timing_adapter *ta); -uint32_t ta_get_histbin(struct timing_adapter *ta); -uint32_t ta_get_histcnt(struct timing_adapter *ta); -uint32_t ta_get_version(struct timing_adapter *ta); - -#if defined __cplusplus -} -#endif - -#endif diff --git a/drivers/timing_adapter/src/timing_adapter.c b/drivers/timing_adapter/src/timing_adapter.c deleted file mode 100644 index 65e4178..0000000 --- a/drivers/timing_adapter/src/timing_adapter.c +++ /dev/null @@ -1,215 +0,0 @@ -/* - * Copyright (c) 2020-2021 Arm Limited. All rights reserved. - * - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the License); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an AS IS BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdint.h> -#include <timing_adapter.h> - -// Register offsets -#define TA_MAXR 0x00 -#define TA_MAXW 0x04 -#define TA_MAXRW 0x08 -#define TA_RLATENCY 0x0C -#define TA_WLATENCY 0x10 -#define TA_PULSE_ON 0x14 -#define TA_PULSE_OFF 0x18 -#define TA_BWCAP 0x1C -#define TA_PERFCTRL 0x20 -#define TA_PERFCNT 0x24 -#define TA_MODE 0x28 -#define TA_MAXPENDING 0x2C -#define TA_HISTBIN 0x30 -#define TA_HISTCNT 0x34 -#define TA_VERSION 0x38 - -// Register masks -#define TA_MAXR_MASK 0x0000003F -#define TA_MAXW_MASK 0x0000003F -#define TA_MAXRW_MASK 0x0000003F -#define TA_RLATENCY_MASK 0x00000FFF -#define TA_WLATENCY_MASK 0x00000FFF -#define TA_PULSE_ON_MASK 0x0000FFFF -#define TA_PULSE_OFF_MASK 0x0000FFFF -#define TA_BWCAP_MASK 0x0000FFFF -#define TA_PERFCTRL_MASK 0x0000003F -#define TA_PERFCNT_MASK 0xFFFFFFFF -#define TA_MODE_MASK 0x00000FFF -#define TA_MAXPENDING_MASK 0xFFFFFFFF -#define TA_HISTBIN_MASK 0x0000000F -#define TA_HISTCNT_MASK 0xFFFFFFFF - -#define TA_VERSION_SUPPORTED 0x1117 - -int ta_init(struct timing_adapter *ta, uintptr_t base_addr) { - ta->base_addr = base_addr; - - if (ta_get_version(ta) != TA_VERSION_SUPPORTED) { - return -1; - } - return 0; -} - -void ta_uninit(struct timing_adapter *ta) { - ta->base_addr = 0; -} - -// -- Set API -------------------------------------- -void ta_set_all(struct timing_adapter *ta, struct timing_adapter_settings *in) { - ta_set_maxr(ta, in->maxr); - ta_set_maxw(ta, in->maxw); - ta_set_maxrw(ta, in->maxrw); - ta_set_rlatency(ta, in->rlatency); - ta_set_wlatency(ta, in->wlatency); - ta_set_pulse_on(ta, in->pulse_on); - ta_set_pulse_off(ta, in->pulse_off); - ta_set_bwcap(ta, in->bwcap); - ta_set_perfctrl(ta, in->perfctrl); - ta_set_perfcnt(ta, in->perfcnt); - ta_set_mode(ta, in->mode); - ta_set_histbin(ta, in->histbin); - ta_set_histcnt(ta, in->histcnt); -} - -void ta_set_maxr(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_MAXR) = val & TA_MAXR_MASK; -}; - -void ta_set_maxw(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_MAXW) = val & TA_MAXW_MASK; -}; - -void ta_set_maxrw(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_MAXRW) = val & TA_MAXRW_MASK; -}; - -void ta_set_rlatency(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_RLATENCY) = val & TA_RLATENCY_MASK; -}; - -void ta_set_wlatency(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_WLATENCY) = val & TA_WLATENCY_MASK; -}; - -void ta_set_pulse_on(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_PULSE_ON) = val & TA_PULSE_ON_MASK; -}; - -void ta_set_pulse_off(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_PULSE_OFF) = val & TA_PULSE_OFF_MASK; -}; - -void ta_set_bwcap(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_BWCAP) = val & TA_BWCAP_MASK; -}; - -void ta_set_perfctrl(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_PERFCTRL) = val & TA_PERFCTRL_MASK; -}; - -void ta_set_perfcnt(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_PERFCNT) = val & TA_PERFCNT_MASK; -}; - -void ta_set_mode(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_MODE) = val & TA_MODE_MASK; -}; - -void ta_set_histbin(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_HISTBIN) = val & TA_HISTBIN_MASK; -}; - -void ta_set_histcnt(struct timing_adapter *ta, uint32_t val) { - *(volatile uint32_t *)(ta->base_addr + TA_HISTCNT) = val & TA_HISTCNT_MASK; -}; - -// -- Get API -------------------------------------- -void ta_get_all(struct timing_adapter *ta, struct timing_adapter_settings *out) { - out->maxr = ta_get_maxr(ta); - out->maxw = ta_get_maxw(ta); - out->maxrw = ta_get_maxrw(ta); - out->rlatency = ta_get_rlatency(ta); - out->wlatency = ta_get_wlatency(ta); - out->pulse_on = ta_get_pulse_on(ta); - out->pulse_off = ta_get_pulse_off(ta); - out->bwcap = ta_get_bwcap(ta); - out->perfctrl = ta_get_perfctrl(ta); - out->perfcnt = ta_get_perfcnt(ta); - out->mode = ta_get_mode(ta); - out->maxpending = ta_get_maxpending(ta); - out->histbin = ta_get_histbin(ta); - out->histcnt = ta_get_histcnt(ta); -} - -uint32_t ta_get_maxr(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_MAXR) & TA_MAXR_MASK; -}; - -uint32_t ta_get_maxw(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_MAXW) & TA_MAXW_MASK; -}; - -uint32_t ta_get_maxrw(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_MAXRW) & TA_MAXRW_MASK; -}; - -uint32_t ta_get_rlatency(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_RLATENCY) & TA_RLATENCY_MASK; -}; - -uint32_t ta_get_wlatency(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_WLATENCY) & TA_WLATENCY_MASK; -}; - -uint32_t ta_get_pulse_on(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_PULSE_ON) & TA_PULSE_ON_MASK; -}; - -uint32_t ta_get_pulse_off(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_PULSE_OFF) & TA_PULSE_OFF_MASK; -}; - -uint32_t ta_get_bwcap(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_BWCAP) & TA_BWCAP_MASK; -}; - -uint32_t ta_get_perfctrl(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_PERFCTRL) & TA_PERFCTRL_MASK; -}; - -uint32_t ta_get_perfcnt(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_PERFCNT) & TA_PERFCNT_MASK; -}; - -uint32_t ta_get_mode(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_MODE) & TA_MODE_MASK; -}; - -uint32_t ta_get_maxpending(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_MAXPENDING) & TA_MAXPENDING_MASK; -}; - -uint32_t ta_get_histbin(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_HISTBIN) & TA_HISTBIN_MASK; -}; - -uint32_t ta_get_histcnt(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_HISTCNT) & TA_HISTCNT_MASK; -}; - -uint32_t ta_get_version(struct timing_adapter *ta) { - return *(volatile uint32_t *)(ta->base_addr + TA_VERSION); -}; |