diff options
Diffstat (limited to 'drivers/video/b2r2/b2r2_profiler/b2r2_profiler.c')
| -rw-r--r-- | drivers/video/b2r2/b2r2_profiler/b2r2_profiler.c | 152 |
1 files changed, 82 insertions, 70 deletions
diff --git a/drivers/video/b2r2/b2r2_profiler/b2r2_profiler.c b/drivers/video/b2r2/b2r2_profiler/b2r2_profiler.c index 2e7c5ca5a7a..e038941b4e8 100644 --- a/drivers/video/b2r2/b2r2_profiler/b2r2_profiler.c +++ b/drivers/video/b2r2/b2r2_profiler/b2r2_profiler.c @@ -32,10 +32,10 @@ module_param(print_blts_on, bool, S_IRUGO | S_IWUSR); static int use_mpix_per_second_in_print_blts = 1; module_param(use_mpix_per_second_in_print_blts, bool, S_IRUGO | S_IWUSR); -static int min_avg_max_mpix_per_second_on = 1; -module_param(min_avg_max_mpix_per_second_on, bool, S_IRUGO | S_IWUSR); +static int profiler_stats_on = 1; +module_param(profiler_stats_on, bool, S_IRUGO | S_IWUSR); -static const unsigned int min_avg_max_mpix_per_second_num_blts_used = 400; +static const unsigned int profiler_stats_blts_used = 400; static struct { unsigned long sampling_start_time_jiffies; @@ -51,22 +51,27 @@ static struct { s32 accumulated_num_usecs; u32 num_blts_done; -} min_avg_max_mpix_per_second_state; +} profiler_stats; static s32 nsec_2_usec(const s32 nsec); static int is_scale_blt(const struct b2r2_blt_req * const request); -static s32 get_blt_mpix_per_second(const struct b2r2_blt_req * const request, const struct b2r2_blt_profiling_info * const blt_profiling_info); -static void print_blt(const struct b2r2_blt_req * const request, const struct b2r2_blt_profiling_info * const blt_profiling_info); +static s32 get_blt_mpix_per_second(const struct b2r2_blt_req * const request, + const struct b2r2_blt_profiling_info * const blt_profiling_info); +static void print_blt(const struct b2r2_blt_req * const request, + const struct b2r2_blt_profiling_info * const blt_profiling_info); static s32 get_num_pixels_in_blt(const struct b2r2_blt_req * const request); static s32 get_mpix_per_second(const s32 num_pixels, const s32 num_usecs); -static void print_min_avg_max_mpix_per_second_state(void); -static void reset_min_avg_max_mpix_per_second_state(void); -static void do_min_avg_max_mpix_per_second(const struct b2r2_blt_req * const request, const struct b2r2_blt_profiling_info * const blt_profiling_info); +static void print_profiler_stats(void); +static void reset_profiler_stats(void); +static void do_profiler_stats(const struct b2r2_blt_req * const request, + const struct b2r2_blt_profiling_info * const blt_profiling_info); -static void blt_done(const struct b2r2_blt_req * const blt, const s32 request_id, const struct b2r2_blt_profiling_info * const blt_profiling_info); +static void blt_done(const struct b2r2_blt_req * const blt, + const s32 request_id, + const struct b2r2_blt_profiling_info * const blt_profiling_info); static struct b2r2_profiler this = { @@ -83,23 +88,30 @@ static s32 nsec_2_usec(const s32 nsec) static int is_scale_blt(const struct b2r2_blt_req * const request) { if ((request->transform & B2R2_BLT_TRANSFORM_CCW_ROT_90 && - (request->src_rect.width != request->dst_rect.height || - request->src_rect.height != request->dst_rect.width)) || + (request->src_rect.width != + request->dst_rect.height || + request->src_rect.height != + request->dst_rect.width)) || (!(request->transform & B2R2_BLT_TRANSFORM_CCW_ROT_90) && - (request->src_rect.width != request->dst_rect.width || - request->src_rect.height != request->dst_rect.height))) + (request->src_rect.width != + request->dst_rect.width || + request->src_rect.height != + request->dst_rect.height))) return 1; else return 0; } -static s32 get_blt_mpix_per_second(const struct b2r2_blt_req * const request, const struct b2r2_blt_profiling_info * const blt_profiling_info) +static s32 get_blt_mpix_per_second(const struct b2r2_blt_req * const request, + const struct b2r2_blt_profiling_info * const blt_profiling_info) { return get_mpix_per_second(get_num_pixels_in_blt(request), - nsec_2_usec(blt_profiling_info->nsec_active_in_cpu + blt_profiling_info->nsec_active_in_b2r2)); + nsec_2_usec(blt_profiling_info->nsec_active_in_cpu + + blt_profiling_info->nsec_active_in_b2r2)); } -static void print_blt(const struct b2r2_blt_req * const request, const struct b2r2_blt_profiling_info * const blt_profiling_info) +static void print_blt(const struct b2r2_blt_req * const request, + const struct b2r2_blt_profiling_info * const blt_profiling_info) { char tmp_str[128]; sprintf(tmp_str, "SF: %#10x, DF: %#10x, F: %#10x, T: %#3x, S: %1i, P: %7i", @@ -110,13 +122,11 @@ static void print_blt(const struct b2r2_blt_req * const request, const struct b2 is_scale_blt(request), get_num_pixels_in_blt(request)); if (use_mpix_per_second_in_print_blts) - printk(KERN_ALERT "%s, MPix/s: %3i\n", - tmp_str, + printk(KERN_ALERT "%s, MPix/s: %3i\n", tmp_str, get_blt_mpix_per_second(request, blt_profiling_info)); else printk(KERN_ALERT "%s, CPU: %10i, B2R2: %10i, Tot: %10i ns\n", - tmp_str, - blt_profiling_info->nsec_active_in_cpu, + tmp_str, blt_profiling_info->nsec_active_in_cpu, blt_profiling_info->nsec_active_in_b2r2, blt_profiling_info->total_time_nsec); } @@ -135,8 +145,10 @@ static s32 get_num_pixels_in_blt(const struct b2r2_blt_req * const request) static s32 get_mpix_per_second(const s32 num_pixels, const s32 num_usecs) { - s32 num_pixels_scale_factor = num_pixels != 0 ? S32_MAX / num_pixels : S32_MAX; - s32 num_usecs_scale_factor = num_usecs != 0 ? S32_MAX / num_usecs : S32_MAX; + s32 num_pixels_scale_factor = num_pixels != 0 ? + S32_MAX / num_pixels : S32_MAX; + s32 num_usecs_scale_factor = num_usecs != 0 ? + S32_MAX / num_usecs : S32_MAX; s32 scale_factor = min(num_pixels_scale_factor, num_usecs_scale_factor); s32 num_pixels_scaled = num_pixels * scale_factor; @@ -148,82 +160,82 @@ static s32 get_mpix_per_second(const s32 num_pixels, const s32 num_usecs) return (num_pixels_scaled / 1000000) / (num_usecs_scaled / 1000000); } -static void print_min_avg_max_mpix_per_second_state(void) +static void print_profiler_stats(void) { printk(KERN_ALERT "Min: %3i, Avg: %3i, Max: %3i MPix/s\n", - min_avg_max_mpix_per_second_state.min_mpix_per_second, - get_mpix_per_second(min_avg_max_mpix_per_second_state.accumulated_num_pixels, - min_avg_max_mpix_per_second_state.accumulated_num_usecs), - min_avg_max_mpix_per_second_state.max_mpix_per_second); + profiler_stats.min_mpix_per_second, + get_mpix_per_second( + profiler_stats.accumulated_num_pixels, + profiler_stats.accumulated_num_usecs), + profiler_stats.max_mpix_per_second); printk(KERN_ALERT "Min blit:\n"); - print_blt(&min_avg_max_mpix_per_second_state.min_blt_request, - &min_avg_max_mpix_per_second_state.min_blt_profiling_info); + print_blt(&profiler_stats.min_blt_request, + &profiler_stats.min_blt_profiling_info); printk(KERN_ALERT "Max blit:\n"); - print_blt(&min_avg_max_mpix_per_second_state.max_blt_request, - &min_avg_max_mpix_per_second_state.max_blt_profiling_info); + print_blt(&profiler_stats.max_blt_request, + &profiler_stats.max_blt_profiling_info); } -static void reset_min_avg_max_mpix_per_second_state(void) +static void reset_profiler_stats(void) { - min_avg_max_mpix_per_second_state.sampling_start_time_jiffies = - jiffies; - min_avg_max_mpix_per_second_state.min_mpix_per_second = S32_MAX; - min_avg_max_mpix_per_second_state.max_mpix_per_second = 0; - min_avg_max_mpix_per_second_state.accumulated_num_pixels = 0; - min_avg_max_mpix_per_second_state.accumulated_num_usecs = 0; - min_avg_max_mpix_per_second_state.num_blts_done = 0; + profiler_stats.sampling_start_time_jiffies = jiffies; + profiler_stats.min_mpix_per_second = S32_MAX; + profiler_stats.max_mpix_per_second = 0; + profiler_stats.accumulated_num_pixels = 0; + profiler_stats.accumulated_num_usecs = 0; + profiler_stats.num_blts_done = 0; } -static void do_min_avg_max_mpix_per_second(const struct b2r2_blt_req * const request, const struct b2r2_blt_profiling_info * const blt_profiling_info) +static void do_profiler_stats(const struct b2r2_blt_req * const request, + const struct b2r2_blt_profiling_info * const blt_profiling_info) { s32 num_pixels_in_blt; s32 num_usec_blt_took; s32 blt_mpix_per_second; - if (time_before(jiffies, min_avg_max_mpix_per_second_state.sampling_start_time_jiffies)) + if (time_before(jiffies, profiler_stats.sampling_start_time_jiffies)) return; num_pixels_in_blt = get_num_pixels_in_blt(request); - num_usec_blt_took = nsec_2_usec(blt_profiling_info->nsec_active_in_cpu + blt_profiling_info->nsec_active_in_b2r2); + num_usec_blt_took = nsec_2_usec(blt_profiling_info->nsec_active_in_cpu + + blt_profiling_info->nsec_active_in_b2r2); blt_mpix_per_second = get_mpix_per_second(num_pixels_in_blt, num_usec_blt_took); - if (blt_mpix_per_second <= min_avg_max_mpix_per_second_state.min_mpix_per_second) { - min_avg_max_mpix_per_second_state.min_mpix_per_second = - blt_mpix_per_second; - memcpy(&min_avg_max_mpix_per_second_state.min_blt_request, + if (blt_mpix_per_second <= + profiler_stats.min_mpix_per_second) { + profiler_stats.min_mpix_per_second = blt_mpix_per_second; + memcpy(&profiler_stats.min_blt_request, request, sizeof(struct b2r2_blt_req)); - memcpy(&min_avg_max_mpix_per_second_state.min_blt_profiling_info, - blt_profiling_info, sizeof(struct b2r2_blt_profiling_info)); + memcpy(&profiler_stats.min_blt_profiling_info, + blt_profiling_info, + sizeof(struct b2r2_blt_profiling_info)); } - if (blt_mpix_per_second >= min_avg_max_mpix_per_second_state.max_mpix_per_second) { - min_avg_max_mpix_per_second_state.max_mpix_per_second = - blt_mpix_per_second; - memcpy(&min_avg_max_mpix_per_second_state.max_blt_request, - request, sizeof(struct b2r2_blt_req)); - memcpy(&min_avg_max_mpix_per_second_state.max_blt_profiling_info, + if (blt_mpix_per_second >= profiler_stats.max_mpix_per_second) { + profiler_stats.max_mpix_per_second = blt_mpix_per_second; + memcpy(&profiler_stats.max_blt_request, request, + sizeof(struct b2r2_blt_req)); + memcpy(&profiler_stats.max_blt_profiling_info, blt_profiling_info, sizeof(struct b2r2_blt_profiling_info)); } - min_avg_max_mpix_per_second_state.accumulated_num_pixels += - num_pixels_in_blt; - min_avg_max_mpix_per_second_state.accumulated_num_usecs += - num_usec_blt_took; - - min_avg_max_mpix_per_second_state.num_blts_done++; + profiler_stats.accumulated_num_pixels += num_pixels_in_blt; + profiler_stats.accumulated_num_usecs += num_usec_blt_took; + profiler_stats.num_blts_done++; - if (min_avg_max_mpix_per_second_state.num_blts_done >= min_avg_max_mpix_per_second_num_blts_used) { - print_min_avg_max_mpix_per_second_state(); - reset_min_avg_max_mpix_per_second_state(); + if (profiler_stats.num_blts_done >= profiler_stats_blts_used) { + print_profiler_stats(); + reset_profiler_stats(); /* The printouts initiated above can disturb the next measurement so we delay it two seconds to give the printouts a chance to finish. */ - min_avg_max_mpix_per_second_state.sampling_start_time_jiffies = - jiffies + (2 * HZ); + profiler_stats.sampling_start_time_jiffies = jiffies + (2 * HZ); } } -static void blt_done(const struct b2r2_blt_req * const request, const s32 request_id, const struct b2r2_blt_profiling_info * const blt_profiling_info) +static void blt_done(const struct b2r2_blt_req * const request, + const s32 request_id, + const struct b2r2_blt_profiling_info * const blt_profiling_info) { /* Filters */ if (src_format_filter_on && request->src_img.fmt != src_format_filter) @@ -233,14 +245,14 @@ static void blt_done(const struct b2r2_blt_req * const request, const s32 reques if (print_blts_on) print_blt(request, blt_profiling_info); - if (min_avg_max_mpix_per_second_on) - do_min_avg_max_mpix_per_second(request, blt_profiling_info); + if (profiler_stats_on) + do_profiler_stats(request, blt_profiling_info); } static int __init b2r2_profiler_init(void) { - reset_min_avg_max_mpix_per_second_state(); + reset_profiler_stats(); return b2r2_register_profiler(&this); } |