Every time I read hsw code I get completely confused about this. So
call it what it is more explicitly.
Also, add an LPT_TRANSCONF for the pch transcoder A and use it in
lpt-only code, to really unconfuse me.
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
drivers/gpu/drm/i915/i915_reg.h | 7 ++++---
drivers/gpu/drm/i915/i915_ums.c | 8 ++++----
drivers/gpu/drm/i915/intel_display.c | 30 +++++++++++++++---------------
3 files changed, 23 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 95ae5cf..d06a571 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4058,9 +4058,10 @@
#define TRANSDPLINK_M2(pipe) _PIPE(pipe, _TRANSA_DP_LINK_M2, _TRANSB_DP_LINK_M2)
#define TRANSDPLINK_N2(pipe) _PIPE(pipe, _TRANSA_DP_LINK_N2, _TRANSB_DP_LINK_N2)
-#define _TRANSACONF 0xf0008
-#define _TRANSBCONF 0xf1008
-#define TRANSCONF(plane) _PIPE(plane, _TRANSACONF, _TRANSBCONF)
+#define _PCH_TRANSACONF 0xf0008
+#define _PCH_TRANSBCONF 0xf1008
+#define PCH_TRANSCONF(plane) _PIPE(plane, _PCH_TRANSACONF, _PCH_TRANSBCONF)
+#define LPT_TRANSCONF _PCH_TRANSACONF /* lpt has only one transcoder */
#define TRANS_DISABLE (0<<31)
#define TRANS_ENABLE (1<<31)
#define TRANS_STATE_MASK (1<<30)
diff --git a/drivers/gpu/drm/i915/i915_ums.c b/drivers/gpu/drm/i915/i915_ums.c
index 985a097..75960dd 100644
--- a/drivers/gpu/drm/i915/i915_ums.c
+++ b/drivers/gpu/drm/i915/i915_ums.c
@@ -148,7 +148,7 @@ void i915_save_display_reg(struct drm_device *dev)
dev_priv->regfile.savePFA_WIN_SZ = I915_READ(_PFA_WIN_SZ);
dev_priv->regfile.savePFA_WIN_POS = I915_READ(_PFA_WIN_POS);
- dev_priv->regfile.saveTRANSACONF = I915_READ(_TRANSACONF);
+ dev_priv->regfile.saveTRANSACONF = I915_READ(_PCH_TRANSACONF);
dev_priv->regfile.saveTRANS_HTOTAL_A = I915_READ(_TRANS_HTOTAL_A);
dev_priv->regfile.saveTRANS_HBLANK_A = I915_READ(_TRANS_HBLANK_A);
dev_priv->regfile.saveTRANS_HSYNC_A = I915_READ(_TRANS_HSYNC_A);
@@ -205,7 +205,7 @@ void i915_save_display_reg(struct drm_device *dev)
dev_priv->regfile.savePFB_WIN_SZ = I915_READ(_PFB_WIN_SZ);
dev_priv->regfile.savePFB_WIN_POS = I915_READ(_PFB_WIN_POS);
- dev_priv->regfile.saveTRANSBCONF = I915_READ(_TRANSBCONF);
+ dev_priv->regfile.saveTRANSBCONF = I915_READ(_PCH_TRANSBCONF);
dev_priv->regfile.saveTRANS_HTOTAL_B = I915_READ(_TRANS_HTOTAL_B);
dev_priv->regfile.saveTRANS_HBLANK_B = I915_READ(_TRANS_HBLANK_B);
dev_priv->regfile.saveTRANS_HSYNC_B = I915_READ(_TRANS_HSYNC_B);
@@ -379,7 +379,7 @@ void i915_restore_display_reg(struct drm_device *dev)
I915_WRITE(_PFA_WIN_SZ, dev_priv->regfile.savePFA_WIN_SZ);
I915_WRITE(_PFA_WIN_POS, dev_priv->regfile.savePFA_WIN_POS);
- I915_WRITE(_TRANSACONF, dev_priv->regfile.saveTRANSACONF);
+ I915_WRITE(_PCH_TRANSACONF, dev_priv->regfile.saveTRANSACONF);
I915_WRITE(_TRANS_HTOTAL_A, dev_priv->regfile.saveTRANS_HTOTAL_A);
I915_WRITE(_TRANS_HBLANK_A, dev_priv->regfile.saveTRANS_HBLANK_A);
I915_WRITE(_TRANS_HSYNC_A, dev_priv->regfile.saveTRANS_HSYNC_A);
@@ -448,7 +448,7 @@ void i915_restore_display_reg(struct drm_device *dev)
I915_WRITE(_PFB_WIN_SZ, dev_priv->regfile.savePFB_WIN_SZ);
I915_WRITE(_PFB_WIN_POS, dev_priv->regfile.savePFB_WIN_POS);
- I915_WRITE(_TRANSBCONF, dev_priv->regfile.saveTRANSBCONF);
+ I915_WRITE(_PCH_TRANSBCONF, dev_priv->regfile.saveTRANSBCONF);
I915_WRITE(_TRANS_HTOTAL_B, dev_priv->regfile.saveTRANS_HTOTAL_B);
I915_WRITE(_TRANS_HBLANK_B, dev_priv->regfile.saveTRANS_HBLANK_B);
I915_WRITE(_TRANS_HSYNC_B, dev_priv->regfile.saveTRANS_HSYNC_B);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2939524..9ee2f9e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1206,14 +1206,14 @@ static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
}
-static void assert_transcoder_disabled(struct drm_i915_private *dev_priv,
- enum pipe pipe)
+static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
int reg;
u32 val;
bool enabled;
- reg = TRANSCONF(pipe);
+ reg = PCH_TRANSCONF(pipe);
val = I915_READ(reg);
enabled = !!(val & TRANS_ENABLE);
WARN(enabled,
@@ -1565,7 +1565,7 @@ static void intel_disable_pch_pll(struct intel_crtc *intel_crtc)
DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg);
/* Make sure transcoder isn't still depending on us */
- assert_transcoder_disabled(dev_priv, intel_crtc->pipe);
+ assert_pch_transcoder_disabled(dev_priv, intel_crtc->pipe);
reg = pll->pll_reg;
val = I915_READ(reg);
@@ -1605,7 +1605,7 @@ static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
I915_WRITE(reg, val);
}
- reg = TRANSCONF(pipe);
+ reg = PCH_TRANSCONF(pipe);
val = I915_READ(reg);
pipeconf_val = I915_READ(PIPECONF(pipe));
@@ -1659,8 +1659,8 @@ static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
else
val |= TRANS_PROGRESSIVE;
- I915_WRITE(TRANSCONF(TRANSCODER_A), val);
- if (wait_for(I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE, 100))
+ I915_WRITE(LPT_TRANSCONF, val);
+ if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
DRM_ERROR("Failed to enable PCH transcoder\n");
}
@@ -1677,7 +1677,7 @@ static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
/* Ports must be off as well */
assert_pch_ports_disabled(dev_priv, pipe);
- reg = TRANSCONF(pipe);
+ reg = PCH_TRANSCONF(pipe);
val = I915_READ(reg);
val &= ~TRANS_ENABLE;
I915_WRITE(reg, val);
@@ -1698,11 +1698,11 @@ static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
{
u32 val;
- val = I915_READ(_TRANSACONF);
+ val = I915_READ(LPT_TRANSCONF);
val &= ~TRANS_ENABLE;
- I915_WRITE(_TRANSACONF, val);
+ I915_WRITE(LPT_TRANSCONF, val);
/* wait for PCH transcoder off, transcoder state */
- if (wait_for((I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE) == 0, 50))
+ if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
DRM_ERROR("Failed to disable PCH transcoder\n");
/* Workaround: clear timing override bit. */
@@ -3011,7 +3011,7 @@ static void ironlake_pch_enable(struct drm_crtc *crtc)
int pipe = intel_crtc->pipe;
u32 reg, temp;
- assert_transcoder_disabled(dev_priv, pipe);
+ assert_pch_transcoder_disabled(dev_priv, pipe);
/* Write the TU size bits before fdi link training, so that error
* detection works. */
@@ -3115,7 +3115,7 @@ static void lpt_pch_enable(struct drm_crtc *crtc)
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
- assert_transcoder_disabled(dev_priv, TRANSCODER_A);
+ assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
lpt_program_iclkip(crtc);
@@ -5899,7 +5899,7 @@ static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
if (!(tmp & PIPECONF_ENABLE))
return false;
- if (I915_READ(TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
+ if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
pipe_config->has_pch_encoder = true;
tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
@@ -6048,7 +6048,7 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
*/
tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
- I915_READ(TRANSCONF(PIPE_A)) & TRANS_ENABLE) {
+ I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
pipe_config->has_pch_encoder = true;
tmp = I915_READ(FDI_RX_CTL(PIPE_A));
--
1.8.1.4
