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path: root/drivers/gpu/drm/i915/intel_display.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d3982e9c6ff6..4fb1982475d2 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6351,92 +6351,6 @@ static const struct drm_mode_config_funcs intel_mode_funcs = {
.output_poll_changed = intel_fb_output_poll_changed,
};
-static unsigned long intel_pxfreq(u32 vidfreq)
-{
- unsigned long freq;
- int div = (vidfreq & 0x3f0000) >> 16;
- int post = (vidfreq & 0x3000) >> 12;
- int pre = (vidfreq & 0x7);
-
- if (!pre)
- return 0;
-
- freq = ((div * 133333) / ((1<<post) * pre));
-
- return freq;
-}
-
-void intel_init_emon(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- u32 lcfuse;
- u8 pxw[16];
- int i;
-
- /* Disable to program */
- I915_WRITE(ECR, 0);
- POSTING_READ(ECR);
-
- /* Program energy weights for various events */
- I915_WRITE(SDEW, 0x15040d00);
- I915_WRITE(CSIEW0, 0x007f0000);
- I915_WRITE(CSIEW1, 0x1e220004);
- I915_WRITE(CSIEW2, 0x04000004);
-
- for (i = 0; i < 5; i++)
- I915_WRITE(PEW + (i * 4), 0);
- for (i = 0; i < 3; i++)
- I915_WRITE(DEW + (i * 4), 0);
-
- /* Program P-state weights to account for frequency power adjustment */
- for (i = 0; i < 16; i++) {
- u32 pxvidfreq = I915_READ(PXVFREQ_BASE + (i * 4));
- unsigned long freq = intel_pxfreq(pxvidfreq);
- unsigned long vid = (pxvidfreq & PXVFREQ_PX_MASK) >>
- PXVFREQ_PX_SHIFT;
- unsigned long val;
-
- val = vid * vid;
- val *= (freq / 1000);
- val *= 255;
- val /= (127*127*900);
- if (val > 0xff)
- DRM_ERROR("bad pxval: %ld\n", val);
- pxw[i] = val;
- }
- /* Render standby states get 0 weight */
- pxw[14] = 0;
- pxw[15] = 0;
-
- for (i = 0; i < 4; i++) {
- u32 val = (pxw[i*4] << 24) | (pxw[(i*4)+1] << 16) |
- (pxw[(i*4)+2] << 8) | (pxw[(i*4)+3]);
- I915_WRITE(PXW + (i * 4), val);
- }
-
- /* Adjust magic regs to magic values (more experimental results) */
- I915_WRITE(OGW0, 0);
- I915_WRITE(OGW1, 0);
- I915_WRITE(EG0, 0x00007f00);
- I915_WRITE(EG1, 0x0000000e);
- I915_WRITE(EG2, 0x000e0000);
- I915_WRITE(EG3, 0x68000300);
- I915_WRITE(EG4, 0x42000000);
- I915_WRITE(EG5, 0x00140031);
- I915_WRITE(EG6, 0);
- I915_WRITE(EG7, 0);
-
- for (i = 0; i < 8; i++)
- I915_WRITE(PXWL + (i * 4), 0);
-
- /* Enable PMON + select events */
- I915_WRITE(ECR, 0x80000019);
-
- lcfuse = I915_READ(LCFUSE02);
-
- dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK);
-}
-
static void ironlake_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
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