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05/09/2024 07:14:16 AM
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cvmx-address.h
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cvmx-agl-defs.h
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cvmx-asm.h
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cvmx-asxx-defs.h
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cvmx-boot-vector.h
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cvmx-bootinfo.h
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cvmx-bootmem.h
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cvmx-ciu-defs.h
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cvmx-ciu2-defs.h
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cvmx-ciu3-defs.h
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cvmx-cmd-queue.h
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cvmx-config.h
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cvmx-coremask.h
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cvmx-dbg-defs.h
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cvmx-dpi-defs.h
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cvmx-fau.h
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cvmx-fpa-defs.h
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cvmx-fpa.h
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cvmx-gmxx-defs.h
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cvmx-gpio-defs.h
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cvmx-helper-board.h
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cvmx-helper-errata.h
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cvmx-helper-jtag.h
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cvmx-helper-loop.h
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cvmx-helper-npi.h
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cvmx-helper-rgmii.h
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cvmx-helper-sgmii.h
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cvmx-helper-spi.h
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cvmx-helper-util.h
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cvmx-helper-xaui.h
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cvmx-helper.h
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cvmx-iob-defs.h
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cvmx-ipd-defs.h
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cvmx-ipd.h
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cvmx-l2c-defs.h
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cvmx-l2c.h
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cvmx-l2d-defs.h
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cvmx-l2t-defs.h
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cvmx-led-defs.h
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cvmx-lmcx-defs.h
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cvmx-mio-defs.h
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cvmx-mixx-defs.h
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cvmx-npei-defs.h
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cvmx-npi-defs.h
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cvmx-packet.h
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cvmx-pci-defs.h
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cvmx-pciercx-defs.h
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cvmx-pcsx-defs.h
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cvmx-pcsxx-defs.h
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cvmx-pemx-defs.h
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cvmx-pescx-defs.h
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cvmx-pexp-defs.h
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cvmx-pip-defs.h
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cvmx-pip.h
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cvmx-pko-defs.h
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cvmx-pko.h
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cvmx-pow-defs.h
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cvmx-pow.h
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cvmx-rnm-defs.h
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cvmx-rst-defs.h
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cvmx-scratch.h
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cvmx-sli-defs.h
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cvmx-smix-defs.h
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cvmx-spi.h
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cvmx-spinlock.h
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cvmx-spxx-defs.h
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cvmx-sriox-defs.h
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cvmx-srxx-defs.h
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cvmx-stxx-defs.h
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cvmx-sysinfo.h
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cvmx-uctlx-defs.h
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cvmx-wqe.h
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cvmx.h
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octeon-feature.h
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octeon-model.h
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octeon.h
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pci-octeon.h
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Editing: cvmx-ipd.h
Close
/***********************license start*************** * Author: Cavium Networks * * Contact: support@caviumnetworks.com * This file is part of the OCTEON SDK * * Copyright (c) 2003-2008 Cavium Networks * * This file is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, Version 2, as * published by the Free Software Foundation. * * This file is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this file; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * or visit http://www.gnu.org/licenses/. * * This file may also be available under a different license from Cavium. * Contact Cavium Networks for more information ***********************license end**************************************/ /** * * Interface to the hardware Input Packet Data unit. */ #ifndef __CVMX_IPD_H__ #define __CVMX_IPD_H__ #include <asm/octeon/octeon-feature.h> #include <asm/octeon/cvmx-ipd-defs.h> enum cvmx_ipd_mode { CVMX_IPD_OPC_MODE_STT = 0LL, /* All blocks DRAM, not cached in L2 */ CVMX_IPD_OPC_MODE_STF = 1LL, /* All blocks into L2 */ CVMX_IPD_OPC_MODE_STF1_STT = 2LL, /* 1st block L2, rest DRAM */ CVMX_IPD_OPC_MODE_STF2_STT = 3LL /* 1st, 2nd blocks L2, rest DRAM */ }; #ifndef CVMX_ENABLE_LEN_M8_FIX #define CVMX_ENABLE_LEN_M8_FIX 0 #endif /* CSR typedefs have been moved to cvmx-csr-*.h */ typedef union cvmx_ipd_1st_mbuff_skip cvmx_ipd_mbuff_first_skip_t; typedef union cvmx_ipd_1st_next_ptr_back cvmx_ipd_first_next_ptr_back_t; typedef cvmx_ipd_mbuff_first_skip_t cvmx_ipd_mbuff_not_first_skip_t; typedef cvmx_ipd_first_next_ptr_back_t cvmx_ipd_second_next_ptr_back_t; /** * Configure IPD * * @mbuff_size: Packets buffer size in 8 byte words * @first_mbuff_skip: * Number of 8 byte words to skip in the first buffer * @not_first_mbuff_skip: * Number of 8 byte words to skip in each following buffer * @first_back: Must be same as first_mbuff_skip / 128 * @second_back: * Must be same as not_first_mbuff_skip / 128 * @wqe_fpa_pool: * FPA pool to get work entries from * @cache_mode: * @back_pres_enable_flag: * Enable or disable port back pressure */ static inline void cvmx_ipd_config(uint64_t mbuff_size, uint64_t first_mbuff_skip, uint64_t not_first_mbuff_skip, uint64_t first_back, uint64_t second_back, uint64_t wqe_fpa_pool, enum cvmx_ipd_mode cache_mode, uint64_t back_pres_enable_flag) { cvmx_ipd_mbuff_first_skip_t first_skip; cvmx_ipd_mbuff_not_first_skip_t not_first_skip; union cvmx_ipd_packet_mbuff_size size; cvmx_ipd_first_next_ptr_back_t first_back_struct; cvmx_ipd_second_next_ptr_back_t second_back_struct; union cvmx_ipd_wqe_fpa_queue wqe_pool; union cvmx_ipd_ctl_status ipd_ctl_reg; first_skip.u64 = 0; first_skip.s.skip_sz = first_mbuff_skip; cvmx_write_csr(CVMX_IPD_1ST_MBUFF_SKIP, first_skip.u64); not_first_skip.u64 = 0; not_first_skip.s.skip_sz = not_first_mbuff_skip; cvmx_write_csr(CVMX_IPD_NOT_1ST_MBUFF_SKIP, not_first_skip.u64); size.u64 = 0; size.s.mb_size = mbuff_size; cvmx_write_csr(CVMX_IPD_PACKET_MBUFF_SIZE, size.u64); first_back_struct.u64 = 0; first_back_struct.s.back = first_back; cvmx_write_csr(CVMX_IPD_1st_NEXT_PTR_BACK, first_back_struct.u64); second_back_struct.u64 = 0; second_back_struct.s.back = second_back; cvmx_write_csr(CVMX_IPD_2nd_NEXT_PTR_BACK, second_back_struct.u64); wqe_pool.u64 = 0; wqe_pool.s.wqe_pool = wqe_fpa_pool; cvmx_write_csr(CVMX_IPD_WQE_FPA_QUEUE, wqe_pool.u64); ipd_ctl_reg.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); ipd_ctl_reg.s.opc_mode = cache_mode; ipd_ctl_reg.s.pbp_en = back_pres_enable_flag; cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_ctl_reg.u64); /* Note: the example RED code that used to be here has been moved to cvmx_helper_setup_red */ } /** * Enable IPD */ static inline void cvmx_ipd_enable(void) { union cvmx_ipd_ctl_status ipd_reg; ipd_reg.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); if (ipd_reg.s.ipd_en) { cvmx_dprintf ("Warning: Enabling IPD when IPD already enabled.\n"); } ipd_reg.s.ipd_en = 1; #if CVMX_ENABLE_LEN_M8_FIX if (!OCTEON_IS_MODEL(OCTEON_CN38XX_PASS2)) ipd_reg.s.len_m8 = TRUE; #endif cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_reg.u64); } /** * Disable IPD */ static inline void cvmx_ipd_disable(void) { union cvmx_ipd_ctl_status ipd_reg; ipd_reg.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); ipd_reg.s.ipd_en = 0; cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_reg.u64); } /** * Supportive function for cvmx_fpa_shutdown_pool. */ static inline void cvmx_ipd_free_ptr(void) { /* Only CN38XXp{1,2} cannot read pointer out of the IPD */ if (!OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1) && !OCTEON_IS_MODEL(OCTEON_CN38XX_PASS2)) { int no_wptr = 0; union cvmx_ipd_ptr_count ipd_ptr_count; ipd_ptr_count.u64 = cvmx_read_csr(CVMX_IPD_PTR_COUNT); /* Handle Work Queue Entry in cn56xx and cn52xx */ if (octeon_has_feature(OCTEON_FEATURE_NO_WPTR)) { union cvmx_ipd_ctl_status ipd_ctl_status; ipd_ctl_status.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); if (ipd_ctl_status.s.no_wptr) no_wptr = 1; } /* Free the prefetched WQE */ if (ipd_ptr_count.s.wqev_cnt) { union cvmx_ipd_wqe_ptr_valid ipd_wqe_ptr_valid; ipd_wqe_ptr_valid.u64 = cvmx_read_csr(CVMX_IPD_WQE_PTR_VALID); if (no_wptr) cvmx_fpa_free(cvmx_phys_to_ptr ((uint64_t) ipd_wqe_ptr_valid.s. ptr << 7), CVMX_FPA_PACKET_POOL, 0); else cvmx_fpa_free(cvmx_phys_to_ptr ((uint64_t) ipd_wqe_ptr_valid.s. ptr << 7), CVMX_FPA_WQE_POOL, 0); } /* Free all WQE in the fifo */ if (ipd_ptr_count.s.wqe_pcnt) { int i; union cvmx_ipd_pwp_ptr_fifo_ctl ipd_pwp_ptr_fifo_ctl; ipd_pwp_ptr_fifo_ctl.u64 = cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); for (i = 0; i < ipd_ptr_count.s.wqe_pcnt; i++) { ipd_pwp_ptr_fifo_ctl.s.cena = 0; ipd_pwp_ptr_fifo_ctl.s.raddr = ipd_pwp_ptr_fifo_ctl.s.max_cnts + (ipd_pwp_ptr_fifo_ctl.s.wraddr + i) % ipd_pwp_ptr_fifo_ctl.s.max_cnts; cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, ipd_pwp_ptr_fifo_ctl.u64); ipd_pwp_ptr_fifo_ctl.u64 = cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); if (no_wptr) cvmx_fpa_free(cvmx_phys_to_ptr ((uint64_t) ipd_pwp_ptr_fifo_ctl.s. ptr << 7), CVMX_FPA_PACKET_POOL, 0); else cvmx_fpa_free(cvmx_phys_to_ptr ((uint64_t) ipd_pwp_ptr_fifo_ctl.s. ptr << 7), CVMX_FPA_WQE_POOL, 0); } ipd_pwp_ptr_fifo_ctl.s.cena = 1; cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, ipd_pwp_ptr_fifo_ctl.u64); } /* Free the prefetched packet */ if (ipd_ptr_count.s.pktv_cnt) { union cvmx_ipd_pkt_ptr_valid ipd_pkt_ptr_valid; ipd_pkt_ptr_valid.u64 = cvmx_read_csr(CVMX_IPD_PKT_PTR_VALID); cvmx_fpa_free(cvmx_phys_to_ptr (ipd_pkt_ptr_valid.s.ptr << 7), CVMX_FPA_PACKET_POOL, 0); } /* Free the per port prefetched packets */ if (1) { int i; union cvmx_ipd_prc_port_ptr_fifo_ctl ipd_prc_port_ptr_fifo_ctl; ipd_prc_port_ptr_fifo_ctl.u64 = cvmx_read_csr(CVMX_IPD_PRC_PORT_PTR_FIFO_CTL); for (i = 0; i < ipd_prc_port_ptr_fifo_ctl.s.max_pkt; i++) { ipd_prc_port_ptr_fifo_ctl.s.cena = 0; ipd_prc_port_ptr_fifo_ctl.s.raddr = i % ipd_prc_port_ptr_fifo_ctl.s.max_pkt; cvmx_write_csr(CVMX_IPD_PRC_PORT_PTR_FIFO_CTL, ipd_prc_port_ptr_fifo_ctl.u64); ipd_prc_port_ptr_fifo_ctl.u64 = cvmx_read_csr (CVMX_IPD_PRC_PORT_PTR_FIFO_CTL); cvmx_fpa_free(cvmx_phys_to_ptr ((uint64_t) ipd_prc_port_ptr_fifo_ctl.s. ptr << 7), CVMX_FPA_PACKET_POOL, 0); } ipd_prc_port_ptr_fifo_ctl.s.cena = 1; cvmx_write_csr(CVMX_IPD_PRC_PORT_PTR_FIFO_CTL, ipd_prc_port_ptr_fifo_ctl.u64); } /* Free all packets in the holding fifo */ if (ipd_ptr_count.s.pfif_cnt) { int i; union cvmx_ipd_prc_hold_ptr_fifo_ctl ipd_prc_hold_ptr_fifo_ctl; ipd_prc_hold_ptr_fifo_ctl.u64 = cvmx_read_csr(CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL); for (i = 0; i < ipd_ptr_count.s.pfif_cnt; i++) { ipd_prc_hold_ptr_fifo_ctl.s.cena = 0; ipd_prc_hold_ptr_fifo_ctl.s.raddr = (ipd_prc_hold_ptr_fifo_ctl.s.praddr + i) % ipd_prc_hold_ptr_fifo_ctl.s.max_pkt; cvmx_write_csr(CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL, ipd_prc_hold_ptr_fifo_ctl.u64); ipd_prc_hold_ptr_fifo_ctl.u64 = cvmx_read_csr (CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL); cvmx_fpa_free(cvmx_phys_to_ptr ((uint64_t) ipd_prc_hold_ptr_fifo_ctl.s. ptr << 7), CVMX_FPA_PACKET_POOL, 0); } ipd_prc_hold_ptr_fifo_ctl.s.cena = 1; cvmx_write_csr(CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL, ipd_prc_hold_ptr_fifo_ctl.u64); } /* Free all packets in the fifo */ if (ipd_ptr_count.s.pkt_pcnt) { int i; union cvmx_ipd_pwp_ptr_fifo_ctl ipd_pwp_ptr_fifo_ctl; ipd_pwp_ptr_fifo_ctl.u64 = cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); for (i = 0; i < ipd_ptr_count.s.pkt_pcnt; i++) { ipd_pwp_ptr_fifo_ctl.s.cena = 0; ipd_pwp_ptr_fifo_ctl.s.raddr = (ipd_pwp_ptr_fifo_ctl.s.praddr + i) % ipd_pwp_ptr_fifo_ctl.s.max_cnts; cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, ipd_pwp_ptr_fifo_ctl.u64); ipd_pwp_ptr_fifo_ctl.u64 = cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); cvmx_fpa_free(cvmx_phys_to_ptr ((uint64_t) ipd_pwp_ptr_fifo_ctl. s.ptr << 7), CVMX_FPA_PACKET_POOL, 0); } ipd_pwp_ptr_fifo_ctl.s.cena = 1; cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, ipd_pwp_ptr_fifo_ctl.u64); } /* Reset the IPD to get all buffers out of it */ { union cvmx_ipd_ctl_status ipd_ctl_status; ipd_ctl_status.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); ipd_ctl_status.s.reset = 1; cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_ctl_status.u64); } /* Reset the PIP */ { union cvmx_pip_sft_rst pip_sft_rst; pip_sft_rst.u64 = cvmx_read_csr(CVMX_PIP_SFT_RST); pip_sft_rst.s.rst = 1; cvmx_write_csr(CVMX_PIP_SFT_RST, pip_sft_rst.u64); } } } #endif /* __CVMX_IPD_H__ */