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drm/i915: Wire up CRC for vlv 

v2: Actually enable it.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
hifive-unleashed-5.1
Daniel Vetter 2013-10-18 16:37:06 +02:00
parent 52f843f6cc
commit 7ac0129bbf
1 changed files with 25 additions and 3 deletions
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28
drivers/gpu/drm/i915/i915_debugfs.c
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@ -1964,6 +1964,29 @@ static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
return 0;
}
static int vlv_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
uint32_t *val)
{
switch (source) {
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_VLV;
break;
case INTEL_PIPE_CRC_SOURCE_DP_B:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_VLV;
break;
case INTEL_PIPE_CRC_SOURCE_DP_C:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV;
break;
case INTEL_PIPE_CRC_SOURCE_NONE:
*val = 0;
break;
default:
return -EINVAL;
}
return 0;
}
static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
enum intel_pipe_crc_source source,
uint32_t *val)
@ -2056,9 +2079,6 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
u32 val;
int ret;
if (IS_VALLEYVIEW(dev))
return -ENODEV;
if (pipe_crc->source == source)
return 0;
@ -2070,6 +2090,8 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
ret = i8xx_pipe_crc_ctl_reg(source, &val);
else if (INTEL_INFO(dev)->gen < 5)
ret = i9xx_pipe_crc_ctl_reg(dev, source, &val);
else if (IS_VALLEYVIEW(dev))
ret = vlv_pipe_crc_ctl_reg(source, &val);
else if (IS_GEN5(dev) || IS_GEN6(dev))
ret = ilk_pipe_crc_ctl_reg(source, &val);
else