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yaml
---
r: 263008
b: refs/heads/master
c: 1519b99
h: refs/heads/master
v: v3
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Keith Packard committed Aug 8, 2011
1 parent fc46d05 commit d19f9be
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Showing 3 changed files with 59 additions and 16 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ed10fca9c351c83ab89a97f3515089e0d36bdccc
refs/heads/master: 1519b9956eb4b4180fa3f47c73341463cdcfaa37
13 changes: 4 additions & 9 deletions trunk/drivers/gpu/drm/i915/i915_reg.h
Original file line number Diff line number Diff line change
Expand Up @@ -1318,6 +1318,7 @@
#define ADPA_PIPE_SELECT_MASK (1<<30)
#define ADPA_PIPE_A_SELECT 0
#define ADPA_PIPE_B_SELECT (1<<30)
#define ADPA_PIPE_SELECT(pipe) ((pipe) << 30)
#define ADPA_USE_VGA_HVPOLARITY (1<<15)
#define ADPA_SETS_HVPOLARITY 0
#define ADPA_VSYNC_CNTL_DISABLE (1<<11)
Expand Down Expand Up @@ -1460,6 +1461,7 @@
/* Selects pipe B for LVDS data. Must be set on pre-965. */
#define LVDS_PIPEB_SELECT (1 << 30)
#define LVDS_PIPE_MASK (1 << 30)
#define LVDS_PIPE(pipe) ((pipe) << 30)
/* LVDS dithering flag on 965/g4x platform */
#define LVDS_ENABLE_DITHER (1 << 25)
/* LVDS sync polarity flags. Set to invert (i.e. negative) */
Expand Down Expand Up @@ -1499,9 +1501,6 @@
#define LVDS_B0B3_POWER_DOWN (0 << 2)
#define LVDS_B0B3_POWER_UP (3 << 2)

#define LVDS_PIPE_ENABLED(V, P) \
(((V) & (LVDS_PIPE_MASK | LVDS_PORT_EN)) == ((P) << 30 | LVDS_PORT_EN))

/* Video Data Island Packet control */
#define VIDEO_DIP_DATA 0x61178
#define VIDEO_DIP_CTL 0x61170
Expand Down Expand Up @@ -3256,14 +3255,12 @@
#define ADPA_CRT_HOTPLUG_VOLREF_475MV (1<<17)
#define ADPA_CRT_HOTPLUG_FORCE_TRIGGER (1<<16)

#define ADPA_PIPE_ENABLED(V, P) \
(((V) & (ADPA_TRANS_SELECT_MASK | ADPA_DAC_ENABLE)) == ((P) << 30 | ADPA_DAC_ENABLE))

/* or SDVOB */
#define HDMIB 0xe1140
#define PORT_ENABLE (1 << 31)
#define TRANSCODER_A (0)
#define TRANSCODER_B (1 << 30)
#define TRANSCODER(pipe) ((pipe) << 30)
#define TRANSCODER_MASK (1 << 30)
#define COLOR_FORMAT_8bpc (0)
#define COLOR_FORMAT_12bpc (3 << 26)
Expand All @@ -3280,9 +3277,6 @@
#define HSYNC_ACTIVE_HIGH (1 << 3)
#define PORT_DETECTED (1 << 2)

#define HDMI_PIPE_ENABLED(V, P) \
(((V) & (TRANSCODER_MASK | PORT_ENABLE)) == ((P) << 30 | PORT_ENABLE))

/* PCH SDVOB multiplex with HDMIB */
#define PCH_SDVOB HDMIB

Expand Down Expand Up @@ -3349,6 +3343,7 @@
#define PORT_TRANS_B_SEL_CPT (1<<29)
#define PORT_TRANS_C_SEL_CPT (2<<29)
#define PORT_TRANS_SEL_MASK (3<<29)
#define PORT_TRANS_SEL_CPT(pipe) ((pipe) << 29)

#define TRANS_DP_CTL_A 0xe0300
#define TRANS_DP_CTL_B 0xe1300
Expand Down
60 changes: 54 additions & 6 deletions trunk/drivers/gpu/drm/i915/intel_display.c
Original file line number Diff line number Diff line change
Expand Up @@ -998,6 +998,53 @@ static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, enum pipe pipe,
return true;
}

static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
enum pipe pipe, u32 val)
{
if ((val & PORT_ENABLE) == 0)
return false;

if (HAS_PCH_CPT(dev_priv->dev)) {
if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
return false;
} else {
if ((val & TRANSCODER_MASK) != TRANSCODER(pipe))
return false;
}
return true;
}

static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
enum pipe pipe, u32 val)
{
if ((val & LVDS_PORT_EN) == 0)
return false;

if (HAS_PCH_CPT(dev_priv->dev)) {
if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
return false;
} else {
if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
return false;
}
return true;
}

static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
enum pipe pipe, u32 val)
{
if ((val & ADPA_DAC_ENABLE) == 0)
return false;
if (HAS_PCH_CPT(dev_priv->dev)) {
if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
return false;
} else {
if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
return false;
}
return true;
}

static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
enum pipe pipe, int reg, u32 port_sel)
{
Expand All @@ -1011,7 +1058,7 @@ static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
enum pipe pipe, int reg)
{
u32 val = I915_READ(reg);
WARN(HDMI_PIPE_ENABLED(val, pipe),
WARN(hdmi_pipe_enabled(dev_priv, val, pipe),
"PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
reg, pipe_name(pipe));
}
Expand All @@ -1028,13 +1075,13 @@ static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,

reg = PCH_ADPA;
val = I915_READ(reg);
WARN(ADPA_PIPE_ENABLED(val, pipe),
WARN(adpa_pipe_enabled(dev_priv, val, pipe),
"PCH VGA enabled on transcoder %c, should be disabled\n",
pipe_name(pipe));

reg = PCH_LVDS;
val = I915_READ(reg);
WARN(LVDS_PIPE_ENABLED(val, pipe),
WARN(lvds_pipe_enabled(dev_priv, val, pipe),
"PCH LVDS enabled on transcoder %c, should be disabled\n",
pipe_name(pipe));

Expand Down Expand Up @@ -1370,7 +1417,7 @@ static void disable_pch_hdmi(struct drm_i915_private *dev_priv,
enum pipe pipe, int reg)
{
u32 val = I915_READ(reg);
if (HDMI_PIPE_ENABLED(val, pipe)) {
if (hdmi_pipe_enabled(dev_priv, val, pipe)) {
DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n",
reg, pipe);
I915_WRITE(reg, val & ~PORT_ENABLE);
Expand All @@ -1392,12 +1439,13 @@ static void intel_disable_pch_ports(struct drm_i915_private *dev_priv,

reg = PCH_ADPA;
val = I915_READ(reg);
if (ADPA_PIPE_ENABLED(val, pipe))
if (adpa_pipe_enabled(dev_priv, val, pipe))
I915_WRITE(reg, val & ~ADPA_DAC_ENABLE);

reg = PCH_LVDS;
val = I915_READ(reg);
if (LVDS_PIPE_ENABLED(val, pipe)) {
if (lvds_pipe_enabled(dev_priv, val, pipe)) {
DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val);
I915_WRITE(reg, val & ~LVDS_PORT_EN);
POSTING_READ(reg);
udelay(100);
Expand Down

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