diff options
| author | Igor Nabirushkin <inabirushkin@nvidia.com> | 2013-09-24 15:46:16 +0400 |
|---|---|---|
| committer | Harry Hong <hhong@nvidia.com> | 2013-12-10 16:21:29 -0800 |
| commit | 6a1f8af7c5fe956aca1a03f5d35d9e8894bd93dc (patch) | |
| tree | 6e346ff3386857ddb15766a4c41c0780c9a20777 /drivers | |
| parent | a699e88b09cd9f8e367b0ad9c7f05b48ccbe484d (diff) | |
misc: tegra-profiler: send buffer fill count
Tegra Profiler misc driver: transmit the maximum buffer
occupancy to the user space.
Bug 1374266
Change-Id: Id078083a5493552c1f3bb697a1d3e4a5504e3f82
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: http://git-master/r/324051
(cherry picked from commit 9e94874e5edee9baa2e6be21712fa67a967eb6bc)
Reviewed-on: http://git-master/r/340006
Reviewed-by: Harry Hong <hhong@nvidia.com>
Tested-by: Harry Hong <hhong@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/tegra-profiler/comm.c | 7 | ||||
| -rw-r--r-- | drivers/misc/tegra-profiler/comm.h | 1 | ||||
| -rw-r--r-- | drivers/misc/tegra-profiler/version.h | 2 |
3 files changed, 9 insertions, 1 deletions
diff --git a/drivers/misc/tegra-profiler/comm.c b/drivers/misc/tegra-profiler/comm.c index e7a21ea10495..9273d8ad8991 100644 --- a/drivers/misc/tegra-profiler/comm.c +++ b/drivers/misc/tegra-profiler/comm.c @@ -46,6 +46,7 @@ static void rb_reset(struct quadd_ring_buffer *rb) rb->pos_read = 0; rb->pos_write = 0; rb->fill_count = 0; + rb->max_fill_count = 0; } static int rb_init(struct quadd_ring_buffer *rb, size_t size) @@ -225,6 +226,10 @@ write_sample(struct quadd_record_data *sample, void *extra_data, return; } } + + if (rb->fill_count > rb->max_fill_count) + rb->max_fill_count = rb->fill_count; + spin_unlock_irqrestore(&rb->lock, flags); } @@ -541,6 +546,8 @@ device_ioctl(struct file *file, spin_lock_irqsave(&rb->lock, flags); state.buffer_fill_size = comm_ctx.rb_size - rb_get_free_space(rb); + state.reserved[QUADD_MOD_STATE_IDX_RB_MAX_FILL_COUNT] = + rb->max_fill_count; spin_unlock_irqrestore(&rb->lock, flags); if (copy_to_user((void __user *)ioctl_param, &state, diff --git a/drivers/misc/tegra-profiler/comm.h b/drivers/misc/tegra-profiler/comm.h index e3c7e28719ef..f519f17b317c 100644 --- a/drivers/misc/tegra-profiler/comm.h +++ b/drivers/misc/tegra-profiler/comm.h @@ -32,6 +32,7 @@ struct quadd_ring_buffer { size_t pos_read; size_t pos_write; size_t fill_count; + size_t max_fill_count; }; struct quadd_parameters; diff --git a/drivers/misc/tegra-profiler/version.h b/drivers/misc/tegra-profiler/version.h index 8d2eec0e2c2d..2d55c518b506 100644 --- a/drivers/misc/tegra-profiler/version.h +++ b/drivers/misc/tegra-profiler/version.h @@ -18,7 +18,7 @@ #ifndef __QUADD_VERSION_H #define __QUADD_VERSION_H -#define QUADD_MODULE_VERSION "1.31" +#define QUADD_MODULE_VERSION "1.32" #define QUADD_MODULE_BRANCH "Dev" #endif /* __QUADD_VERSION_H */ |