diff options
Diffstat (limited to 'drivers/misc/cxl/debugfs.c')
| -rw-r--r-- | drivers/misc/cxl/debugfs.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c deleted file mode 100644 index eae9d749f967..000000000000 --- a/drivers/misc/cxl/debugfs.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * Copyright 2014 IBM 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; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/debugfs.h> -#include <linux/kernel.h> -#include <linux/slab.h> - -#include "cxl.h" - -static struct dentry *cxl_debugfs; - -void cxl_stop_trace_psl9(struct cxl *adapter) -{ - /* Stop the trace */ - cxl_p1_write(adapter, CXL_PSL9_TRACECFG, 0x4480000000000000ULL); -} - -void cxl_stop_trace_psl8(struct cxl *adapter) -{ - int slice; - - /* Stop the trace */ - cxl_p1_write(adapter, CXL_PSL_TRACE, 0x8000000000000017LL); - - /* Stop the slice traces */ - spin_lock(&adapter->afu_list_lock); - for (slice = 0; slice < adapter->slices; slice++) { - if (adapter->afu[slice]) - cxl_p1n_write(adapter->afu[slice], CXL_PSL_SLICE_TRACE, 0x8000000000000000LL); - } - spin_unlock(&adapter->afu_list_lock); -} - -/* Helpers to export CXL mmaped IO registers via debugfs */ -static int debugfs_io_u64_get(void *data, u64 *val) -{ - *val = in_be64((u64 __iomem *)data); - return 0; -} - -static int debugfs_io_u64_set(void *data, u64 val) -{ - out_be64((u64 __iomem *)data, val); - return 0; -} -DEFINE_DEBUGFS_ATTRIBUTE(fops_io_x64, debugfs_io_u64_get, debugfs_io_u64_set, - "0x%016llx\n"); - -static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode, - struct dentry *parent, u64 __iomem *value) -{ - return debugfs_create_file_unsafe(name, mode, parent, - (void __force *)value, &fops_io_x64); -} - -void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir) -{ - debugfs_create_io_x64("fir1", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR1)); - debugfs_create_io_x64("fir2", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR2)); - debugfs_create_io_x64("fir_cntl", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR_CNTL)); - debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_TRACECFG)); -} - -void cxl_debugfs_add_adapter_regs_psl8(struct cxl *adapter, struct dentry *dir) -{ - debugfs_create_io_x64("fir1", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR1)); - debugfs_create_io_x64("fir2", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR2)); - debugfs_create_io_x64("fir_cntl", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR_CNTL)); - debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_TRACE)); -} - -void cxl_debugfs_add_adapter_regs_xsl(struct cxl *adapter, struct dentry *dir) -{ - debugfs_create_io_x64("fec", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_XSL_FEC)); -} - -int cxl_debugfs_adapter_add(struct cxl *adapter) -{ - struct dentry *dir; - char buf[32]; - - if (!cxl_debugfs) - return -ENODEV; - - snprintf(buf, 32, "card%i", adapter->adapter_num); - dir = debugfs_create_dir(buf, cxl_debugfs); - if (IS_ERR(dir)) - return PTR_ERR(dir); - adapter->debugfs = dir; - - debugfs_create_io_x64("err_ivte", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_ErrIVTE)); - - if (adapter->native->sl_ops->debugfs_add_adapter_regs) - adapter->native->sl_ops->debugfs_add_adapter_regs(adapter, dir); - return 0; -} - -void cxl_debugfs_adapter_remove(struct cxl *adapter) -{ - debugfs_remove_recursive(adapter->debugfs); -} - -void cxl_debugfs_add_afu_regs_psl9(struct cxl_afu *afu, struct dentry *dir) -{ - debugfs_create_io_x64("serr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SERR_An)); -} - -void cxl_debugfs_add_afu_regs_psl8(struct cxl_afu *afu, struct dentry *dir) -{ - debugfs_create_io_x64("sstp0", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_SSTP0_An)); - debugfs_create_io_x64("sstp1", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_SSTP1_An)); - - debugfs_create_io_x64("fir", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_FIR_SLICE_An)); - debugfs_create_io_x64("serr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SERR_An)); - debugfs_create_io_x64("afu_debug", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_AFU_DEBUG_An)); - debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SLICE_TRACE)); -} - -int cxl_debugfs_afu_add(struct cxl_afu *afu) -{ - struct dentry *dir; - char buf[32]; - - if (!afu->adapter->debugfs) - return -ENODEV; - - snprintf(buf, 32, "psl%i.%i", afu->adapter->adapter_num, afu->slice); - dir = debugfs_create_dir(buf, afu->adapter->debugfs); - if (IS_ERR(dir)) - return PTR_ERR(dir); - afu->debugfs = dir; - - debugfs_create_io_x64("sr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SR_An)); - debugfs_create_io_x64("dsisr", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_PSL_DSISR_An)); - debugfs_create_io_x64("dar", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_PSL_DAR_An)); - - debugfs_create_io_x64("err_status", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_PSL_ErrStat_An)); - - if (afu->adapter->native->sl_ops->debugfs_add_afu_regs) - afu->adapter->native->sl_ops->debugfs_add_afu_regs(afu, dir); - - return 0; -} - -void cxl_debugfs_afu_remove(struct cxl_afu *afu) -{ - debugfs_remove_recursive(afu->debugfs); -} - -int __init cxl_debugfs_init(void) -{ - struct dentry *ent; - - if (!cpu_has_feature(CPU_FTR_HVMODE)) - return 0; - - ent = debugfs_create_dir("cxl", NULL); - if (IS_ERR(ent)) - return PTR_ERR(ent); - cxl_debugfs = ent; - - return 0; -} - -void cxl_debugfs_exit(void) -{ - debugfs_remove_recursive(cxl_debugfs); -} |