diff options
Diffstat (limited to 'arch/powerpc/oprofile/common.c')
| -rw-r--r-- | arch/powerpc/oprofile/common.c | 60 |
1 files changed, 39 insertions, 21 deletions
diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c index 4908dc98f9c..c77348c5d46 100644 --- a/arch/powerpc/oprofile/common.c +++ b/arch/powerpc/oprofile/common.c @@ -18,7 +18,6 @@ #include <linux/smp.h> #include <linux/errno.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/pmc.h> #include <asm/cputable.h> #include <asm/oprofile_impl.h> @@ -65,7 +64,7 @@ static int op_powerpc_setup(void) /* Configure the registers on all cpus. If an error occurs on one * of the cpus, op_per_cpu_rc will be set to the error */ - on_each_cpu(op_powerpc_cpu_setup, NULL, 0, 1); + on_each_cpu(op_powerpc_cpu_setup, NULL, 1); out: if (op_per_cpu_rc) { /* error on setup release the performance counter hardware */ @@ -100,7 +99,7 @@ static int op_powerpc_start(void) if (model->global_start) return model->global_start(ctr); if (model->start) { - on_each_cpu(op_powerpc_cpu_start, NULL, 0, 1); + on_each_cpu(op_powerpc_cpu_start, NULL, 1); return op_per_cpu_rc; } return -EIO; /* No start function is defined for this @@ -115,12 +114,12 @@ static inline void op_powerpc_cpu_stop(void *dummy) static void op_powerpc_stop(void) { if (model->stop) - on_each_cpu(op_powerpc_cpu_stop, NULL, 0, 1); + on_each_cpu(op_powerpc_cpu_stop, NULL, 1); if (model->global_stop) model->global_stop(); } -static int op_powerpc_create_files(struct super_block *sb, struct dentry *root) +static int op_powerpc_create_files(struct dentry *root) { int i; @@ -129,9 +128,31 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root) * There is one mmcr0, mmcr1 and mmcra for setting the events for * all of the counters. */ - oprofilefs_create_ulong(sb, root, "mmcr0", &sys.mmcr0); - oprofilefs_create_ulong(sb, root, "mmcr1", &sys.mmcr1); - oprofilefs_create_ulong(sb, root, "mmcra", &sys.mmcra); + oprofilefs_create_ulong(root, "mmcr0", &sys.mmcr0); + oprofilefs_create_ulong(root, "mmcr1", &sys.mmcr1); + oprofilefs_create_ulong(root, "mmcra", &sys.mmcra); +#ifdef CONFIG_OPROFILE_CELL + /* create a file the user tool can check to see what level of profiling + * support exits with this kernel. Initialize bit mask to indicate + * what support the kernel has: + * bit 0 - Supports SPU event profiling in addition to PPU + * event and cycles; and SPU cycle profiling + * bits 1-31 - Currently unused. + * + * If the file does not exist, then the kernel only supports SPU + * cycle profiling, PPU event and cycle profiling. + */ + oprofilefs_create_ulong(root, "cell_support", &sys.cell_support); + sys.cell_support = 0x1; /* Note, the user OProfile tool must check + * that this bit is set before attempting to + * user SPU event profiling. Older kernels + * will not have this file, hence the user + * tool is not allowed to do SPU event + * profiling on older kernels. Older kernels + * will accept SPU events but collected data + * is garbage. + */ +#endif #endif for (i = 0; i < model->num_counters; ++i) { @@ -139,11 +160,11 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root) char buf[4]; snprintf(buf, sizeof buf, "%d", i); - dir = oprofilefs_mkdir(sb, root, buf); + dir = oprofilefs_mkdir(root, buf); - oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled); - oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event); - oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count); + oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled); + oprofilefs_create_ulong(dir, "event", &ctr[i].event); + oprofilefs_create_ulong(dir, "count", &ctr[i].count); /* * Classic PowerPC doesn't support per-counter @@ -152,14 +173,14 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root) * Book-E style performance monitors, we do * support them. */ - oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel); - oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user); + oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel); + oprofilefs_create_ulong(dir, "user", &ctr[i].user); - oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask); + oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask); } - oprofilefs_create_ulong(sb, root, "enable_kernel", &sys.enable_kernel); - oprofilefs_create_ulong(sb, root, "enable_user", &sys.enable_user); + oprofilefs_create_ulong(root, "enable_kernel", &sys.enable_kernel); + oprofilefs_create_ulong(root, "enable_user", &sys.enable_user); /* Default to tracing both kernel and user */ sys.enable_kernel = 1; @@ -173,11 +194,8 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) if (!cur_cpu_spec->oprofile_cpu_type) return -ENODEV; - if (firmware_has_feature(FW_FEATURE_ISERIES)) - return -ENODEV; - switch (cur_cpu_spec->oprofile_type) { -#ifdef CONFIG_PPC64 +#ifdef CONFIG_PPC_BOOK3S_64 #ifdef CONFIG_OPROFILE_CELL case PPC_OPROFILE_CELL: if (firmware_has_feature(FW_FEATURE_LPAR)) |