cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/platforms/cell/spu_priv1_mmio.c

/*
 * spu hypervisor abstraction for direct hardware access.
 *
 *  (C) Copyright IBM Deutschland Entwicklung GmbH 2005
 *  Copyright 2006 Sony Corp.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/ptrace.h>
#include <linux/wait.h>
#include <linux/mm.h>
#include <linux/io.h>
#include <linux/mutex.h>
#include <linux/device.h>
#include <linux/sched.h>

#include <asm/spu.h>
#include <asm/spu_priv1.h>
#include <asm/firmware.h>
#include <asm/prom.h>

#include "interrupt.h"
#include "spu_priv1_mmio.h"


static void int_mask_and(struct spu *spu, int class, u64 mask) { u64 old_mask; old_mask = in_be64(&spu->priv1->int_mask_RW[class]); out_be64(&spu->priv1->int_mask_RW[class], old_mask & mask); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann5096.15%150.00%
Geoff Levand23.85%150.00%
Total52100.00%2100.00%


static void int_mask_or(struct spu *spu, int class, u64 mask) { u64 old_mask; old_mask = in_be64(&spu->priv1->int_mask_RW[class]); out_be64(&spu->priv1->int_mask_RW[class], old_mask | mask); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann5096.15%150.00%
Geoff Levand23.85%150.00%
Total52100.00%2100.00%


static void int_mask_set(struct spu *spu, int class, u64 mask) { out_be64(&spu->priv1->int_mask_RW[class], mask); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann3093.75%150.00%
Geoff Levand26.25%150.00%
Total32100.00%2100.00%


static u64 int_mask_get(struct spu *spu, int class) { return in_be64(&spu->priv1->int_mask_RW[class]); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2692.86%150.00%
Geoff Levand27.14%150.00%
Total28100.00%2100.00%


static void int_stat_clear(struct spu *spu, int class, u64 stat) { out_be64(&spu->priv1->int_stat_RW[class], stat); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann3093.75%150.00%
Geoff Levand26.25%150.00%
Total32100.00%2100.00%


static u64 int_stat_get(struct spu *spu, int class) { return in_be64(&spu->priv1->int_stat_RW[class]); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2692.86%150.00%
Geoff Levand27.14%150.00%
Total28100.00%2100.00%


static void cpu_affinity_set(struct spu *spu, int cpu) { u64 target; u64 route; if (nr_cpus_node(spu->node)) { const struct cpumask *spumask = cpumask_of_node(spu->node), *cpumask = cpumask_of_node(cpu_to_node(cpu)); if (!cpumask_intersects(spumask, cpumask)) return; } target = iic_get_target_id(cpu); route = target << 48 | target << 32 | target << 16; out_be64(&spu->priv1->int_route_RW, route); }

Contributors

PersonTokensPropCommitsCommitProp
Luke Browning4545.45%120.00%
Geoff Levand2323.23%240.00%
Arnd Bergmann2222.22%120.00%
Rusty Russell99.09%120.00%
Total99100.00%5100.00%


static u64 mfc_dar_get(struct spu *spu) { return in_be64(&spu->priv1->mfc_dar_RW); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2090.91%150.00%
Geoff Levand29.09%150.00%
Total22100.00%2100.00%


static u64 mfc_dsisr_get(struct spu *spu) { return in_be64(&spu->priv1->mfc_dsisr_RW); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2090.91%150.00%
Geoff Levand29.09%150.00%
Total22100.00%2100.00%


static void mfc_dsisr_set(struct spu *spu, u64 dsisr) { out_be64(&spu->priv1->mfc_dsisr_RW, dsisr); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2492.31%150.00%
Geoff Levand27.69%150.00%
Total26100.00%2100.00%


static void mfc_sdr_setup(struct spu *spu) { out_be64(&spu->priv1->mfc_sdr_RW, mfspr(SPRN_SDR1)); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2076.92%133.33%
Masato Noguchi519.23%133.33%
Geoff Levand13.85%133.33%
Total26100.00%3100.00%


static void mfc_sr1_set(struct spu *spu, u64 sr1) { out_be64(&spu->priv1->mfc_sr1_RW, sr1); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2492.31%150.00%
Geoff Levand27.69%150.00%
Total26100.00%2100.00%


static u64 mfc_sr1_get(struct spu *spu) { return in_be64(&spu->priv1->mfc_sr1_RW); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2090.91%150.00%
Geoff Levand29.09%150.00%
Total22100.00%2100.00%


static void mfc_tclass_id_set(struct spu *spu, u64 tclass_id) { out_be64(&spu->priv1->mfc_tclass_id_RW, tclass_id); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2492.31%150.00%
Geoff Levand27.69%150.00%
Total26100.00%2100.00%


static u64 mfc_tclass_id_get(struct spu *spu) { return in_be64(&spu->priv1->mfc_tclass_id_RW); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2090.91%150.00%
Geoff Levand29.09%150.00%
Total22100.00%2100.00%


static void tlb_invalidate(struct spu *spu) { out_be64(&spu->priv1->tlb_invalidate_entry_W, 0ul); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2191.30%150.00%
Geoff Levand28.70%150.00%
Total23100.00%2100.00%


static void resource_allocation_groupID_set(struct spu *spu, u64 id) { out_be64(&spu->priv1->resource_allocation_groupID_RW, id); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2492.31%150.00%
Geoff Levand27.69%150.00%
Total26100.00%2100.00%


static u64 resource_allocation_groupID_get(struct spu *spu) { return in_be64(&spu->priv1->resource_allocation_groupID_RW); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2090.91%150.00%
Geoff Levand29.09%150.00%
Total22100.00%2100.00%


static void resource_allocation_enable_set(struct spu *spu, u64 enable) { out_be64(&spu->priv1->resource_allocation_enable_RW, enable); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2492.31%150.00%
Geoff Levand27.69%150.00%
Total26100.00%2100.00%


static u64 resource_allocation_enable_get(struct spu *spu) { return in_be64(&spu->priv1->resource_allocation_enable_RW); }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann2090.91%150.00%
Geoff Levand29.09%150.00%
Total22100.00%2100.00%

const struct spu_priv1_ops spu_priv1_mmio_ops = { .int_mask_and = int_mask_and, .int_mask_or = int_mask_or, .int_mask_set = int_mask_set, .int_mask_get = int_mask_get, .int_stat_clear = int_stat_clear, .int_stat_get = int_stat_get, .cpu_affinity_set = cpu_affinity_set, .mfc_dar_get = mfc_dar_get, .mfc_dsisr_get = mfc_dsisr_get, .mfc_dsisr_set = mfc_dsisr_set, .mfc_sdr_setup = mfc_sdr_setup, .mfc_sr1_set = mfc_sr1_set, .mfc_sr1_get = mfc_sr1_get, .mfc_tclass_id_set = mfc_tclass_id_set, .mfc_tclass_id_get = mfc_tclass_id_get, .tlb_invalidate = tlb_invalidate, .resource_allocation_groupID_set = resource_allocation_groupID_set, .resource_allocation_groupID_get = resource_allocation_groupID_get, .resource_allocation_enable_set = resource_allocation_enable_set, .resource_allocation_enable_get = resource_allocation_enable_get, };

Overall Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann51765.69%114.29%
Geoff Levand20626.18%342.86%
Luke Browning486.10%114.29%
Rusty Russell91.14%114.29%
Masato Noguchi70.89%114.29%
Total787100.00%7100.00%
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