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| author |   Bernie Thompson <bernie@plugable.com> | 2010-02-15 06:46:08 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-03 16:43:00 -0800 |
| commit | 7d9485e2c53caaaed9606a39de1c2746cc9ba262 (patch) | |
| tree | ae7433e46e2e14d97d8ee7e4382f35b6b9a68de9 /drivers/staging/udlfb/udlfb.h | |
| parent | Staging: udlfb: clean up function naming (diff) | |
| download | linux-dev-7d9485e2c53caaaed9606a39de1c2746cc9ba262.tar.xz linux-dev-7d9485e2c53caaaed9606a39de1c2746cc9ba262.zip | |
Staging: udlfb: Add functions to expose sysfs metrics and controls
Add sysfs controls for edid and performance metrics
There are 8 new files exposed in /sys/class/graphics/fb*
edid - returns 128 byte edid blog, suitable for parsing with parse-edid
metrics_bytes_identical
metrics_bytes_rendered
metrics_bytes_sent
metrics_cpu_kcycles_used
metrics_misc
and metrics_reset, which resets all perf metrics to zero
The 6 perf metrics are of type atomic_t.
So these metrics return precise results for short benchmarks, but
any test approx a minute or longer runtime may roll over.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/udlfb/udlfb.h')
| -rw-r--r-- | drivers/staging/udlfb/udlfb.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/staging/udlfb/udlfb.h b/drivers/staging/udlfb/udlfb.h index 13f992fe45f7..ef343a6052d6 100644 --- a/drivers/staging/udlfb/udlfb.h +++ b/drivers/staging/udlfb/udlfb.h @@ -33,8 +33,12 @@ struct dlfb_data { char *bufend; char *backing_buffer; struct mutex bulk_mutex; + int fb_count; + atomic_t usb_active; /* 0 = update virtual buffer, but no usb traffic */ atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ + atomic_t use_defio; /* 0 = rely on ioctls and blit/copy/fill rects */ char edid[128]; + int sku_pixel_limit; int screen_size; int line_length; struct completion done; @@ -43,6 +47,17 @@ struct dlfb_data { int base8; int base8d; u32 pseudo_palette[256]; + /* blit-only rendering path metrics, exposed through sysfs */ + atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ + atomic_t bytes_identical; /* saved effort with backbuffer comparison */ + atomic_t bytes_sent; /* to usb, after compression including overhead */ + atomic_t cpu_kcycles_used; /* transpired during pixel processing */ + /* interface usage metrics. Clients can call driver via several */ + atomic_t blit_count; + atomic_t copy_count; + atomic_t fill_count; + atomic_t damage_count; + atomic_t defio_fault_count; }; #define NR_USB_REQUEST_I2C_SUB_IO 0x02 @@ -99,6 +114,9 @@ static int dlfb_bulk_msg(struct dlfb_data *dev_info, int len) #define dlfb_set_register insert_command +/* remove once this gets added to sysfs.h */ +#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store) + #define dl_err(format, arg...) \ dev_err(dev->gdev, "dlfb: " format, ## arg) #define dl_warn(format, arg...) \ |