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drm/i915: #define gpu freq multipler 

Magic numbers are bad mmmkay. In this case in particular the value is
especially weird because the docs say multiple things. We'll need this
value for sysfs, so extracting it is useful for that as well.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2012-09-07 19:43:39 -07:00 committed by Daniel Vetter
parent dbdfd8e90c
commit c8735b0c3e
2 changed files with 13 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -914,7 +914,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
seq_printf(m, "Render p-state limit: %d\n",
rp_state_limits & 0xff);
seq_printf(m, "CAGF: %dMHz\n", ((rpstat & GEN6_CAGF_MASK) >>
GEN6_CAGF_SHIFT) * 50);
GEN6_CAGF_SHIFT) * GT_FREQUENCY_MULTIPLIER);
seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
GEN6_CURICONT_MASK);
seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
@ -930,15 +930,15 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
max_freq = (rp_state_cap & 0xff0000) >> 16;
seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
max_freq * 50);
max_freq * GT_FREQUENCY_MULTIPLIER);
max_freq = (rp_state_cap & 0xff00) >> 8;
seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
max_freq * 50);
max_freq * GT_FREQUENCY_MULTIPLIER);
max_freq = rp_state_cap & 0xff;
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
max_freq * 50);
max_freq * GT_FREQUENCY_MULTIPLIER);
} else {
seq_printf(m, "no P-state info available\n");
}
@ -1292,7 +1292,7 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
continue;
}
ia_freq = I915_READ(GEN6_PCODE_DATA);
seq_printf(m, "%d\t\t%d\n", gpu_freq * 50, ia_freq * 100);
seq_printf(m, "%d\t\t%d\n", gpu_freq * GT_FREQUENCY_MULTIPLIER, ia_freq * 100);
}
mutex_unlock(&dev->struct_mutex);
@ -1717,7 +1717,7 @@ i915_max_freq_read(struct file *filp,
return ret;
len = snprintf(buf, sizeof(buf),
"max freq: %d\n", dev_priv->rps.max_delay * 50);
"max freq: %d\n", dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER);
mutex_unlock(&dev->struct_mutex);
if (len > sizeof(buf))
@ -1760,9 +1760,9 @@ i915_max_freq_write(struct file *filp,
/*
* Turbo will still be enabled, but won't go above the set value.
*/
dev_priv->rps.max_delay = val / 50;
dev_priv->rps.max_delay = val / GT_FREQUENCY_MULTIPLIER;
gen6_set_rps(dev, val / 50);
gen6_set_rps(dev, val / GT_FREQUENCY_MULTIPLIER);
mutex_unlock(&dev->struct_mutex);
return cnt;
@ -1793,7 +1793,7 @@ i915_min_freq_read(struct file *filp, char __user *ubuf, size_t max,
return ret;
len = snprintf(buf, sizeof(buf),
"min freq: %d\n", dev_priv->rps.min_delay * 50);
"min freq: %d\n", dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER);
mutex_unlock(&dev->struct_mutex);
if (len > sizeof(buf))
@ -1834,9 +1834,9 @@ i915_min_freq_write(struct file *filp, const char __user *ubuf, size_t cnt,
/*
* Turbo will still be enabled, but won't go below the set value.
*/
dev_priv->rps.min_delay = val / 50;
dev_priv->rps.min_delay = val / GT_FREQUENCY_MULTIPLIER;
gen6_set_rps(dev, val / 50);
gen6_set_rps(dev, val / GT_FREQUENCY_MULTIPLIER);
mutex_unlock(&dev->struct_mutex);
return cnt;

2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1179,6 +1179,8 @@ struct drm_i915_file_private {
#define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
#define GT_FREQUENCY_MULTIPLIER 50
#include "i915_trace.h"
/**