[Intel-gfx] [PATCH 10/31] drm/i915: metadata for shared dplls
Daniel Vetter
daniel.vetter at ffwll.ch
Wed Jun 5 13:34:12 CEST 2013
An id to match the idx (useful for register access macros) and a name
fore neater debug output.
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
drivers/gpu/drm/i915/i915_drv.h | 21 +++++++++-------
drivers/gpu/drm/i915/intel_display.c | 48 +++++++++++++++++++++---------------
2 files changed, 40 insertions(+), 29 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ca3cb3b..f1a7f8c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -132,15 +132,6 @@ enum hpd_pin {
list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
if ((intel_encoder)->base.crtc == (__crtc))
-struct intel_shared_dpll {
- int refcount; /* count of number of CRTCs sharing this PLL */
- int active; /* count of number of active CRTCs (i.e. DPMS on) */
- bool on; /* is the PLL actually active? Disabled during modeset */
- int pll_reg;
- int fp0_reg;
- int fp1_reg;
-};
-
enum intel_dpll_id {
DPLL_ID_NONE = -2, /* no dpll assigned/used */
DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
@@ -150,6 +141,18 @@ enum intel_dpll_id {
};
#define I915_NUM_PLLS 2
+struct intel_shared_dpll {
+ int refcount; /* count of number of CRTCs sharing this PLL */
+ int active; /* count of number of active CRTCs (i.e. DPMS on) */
+ bool on; /* is the PLL actually active? Disabled during modeset */
+ const char *name;
+ /* should match the index in the dev_priv->shared_dplls array */
+ enum intel_dpll_id id;
+ int pll_reg;
+ int fp0_reg;
+ int fp1_reg;
+};
+
/* Used by dp and fdi links */
struct intel_link_m_n {
uint32_t tu;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 829e75b..eecacd2 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -917,14 +917,14 @@ static void assert_shared_dpll(struct drm_i915_private *dev_priv,
}
if (WARN (!pll,
- "asserting PCH PLL %s with no PLL\n", state_string(state)))
+ "asserting DPLL %s with no DPLL\n", state_string(state)))
return;
val = I915_READ(pll->pll_reg);
cur_state = !!(val & DPLL_VCO_ENABLE);
WARN(cur_state != state,
- "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n",
- pll->pll_reg, state_string(state), state_string(cur_state), val);
+ "%s assertion failure (expected %s, current %s), val=%08x\n",
+ pll->name, state_string(state), state_string(cur_state), val);
/* Make sure the selected PLL is correctly attached to the transcoder */
if (crtc && HAS_PCH_CPT(dev_priv->dev)) {
@@ -1400,8 +1400,8 @@ static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
if (WARN_ON(pll->refcount == 0))
return;
- DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n",
- pll->pll_reg, pll->active, pll->on,
+ DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
+ pll->name, pll->active, pll->on,
crtc->base.base.id);
/* PCH refclock must be enabled first */
@@ -1413,7 +1413,7 @@ static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
return;
}
- DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg);
+ DRM_DEBUG_KMS("enabling %s\n", pll->name);
reg = pll->pll_reg;
val = I915_READ(reg);
@@ -1440,8 +1440,8 @@ static void intel_disable_shared_dpll(struct intel_crtc *crtc)
if (WARN_ON(pll->refcount == 0))
return;
- DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n",
- pll->pll_reg, pll->active, pll->on,
+ DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
+ pll->name, pll->active, pll->on,
crtc->base.base.id);
if (WARN_ON(pll->active == 0)) {
@@ -1454,7 +1454,7 @@ static void intel_disable_shared_dpll(struct intel_crtc *crtc)
if (--pll->active)
return;
- DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg);
+ DRM_DEBUG_KMS("disabling %s\n", pll->name);
/* Make sure transcoder isn't still depending on us */
assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
@@ -3033,7 +3033,7 @@ static void intel_put_shared_dpll(struct intel_crtc *crtc)
WARN_ON(!crtc->config.has_pch_encoder);
if (pll->refcount == 0) {
- WARN(1, "bad PCH PLL refcount\n");
+ WARN(1, "bad %s refcount\n", pll->name);
return;
}
@@ -3052,8 +3052,8 @@ static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
enum intel_dpll_id i;
if (pll) {
- DRM_DEBUG_KMS("CRTC:%d dropping existing PCH PLL %x\n",
- crtc->base.base.id, pll->pll_reg);
+ DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
+ crtc->base.base.id, pll->name);
intel_put_shared_dpll(crtc);
}
@@ -3062,8 +3062,8 @@ static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
i = crtc->pipe;
pll = &dev_priv->shared_dplls[i];
- DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
- crtc->base.base.id, pll->pll_reg);
+ DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
+ crtc->base.base.id, pll->name);
goto found;
}
@@ -3077,9 +3077,9 @@ static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) &&
fp == I915_READ(pll->fp0_reg)) {
- DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
+ DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
crtc->base.base.id,
- pll->pll_reg, pll->refcount, pll->active);
+ pll->name, pll->refcount, pll->active);
goto found;
}
@@ -3089,8 +3089,8 @@ static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
for (i = 0; i < dev_priv->num_shared_dpll; i++) {
pll = &dev_priv->shared_dplls[i];
if (pll->refcount == 0) {
- DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
- crtc->base.base.id, pll->pll_reg);
+ DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
+ crtc->base.base.id, pll->name);
goto found;
}
}
@@ -3099,9 +3099,10 @@ static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
found:
crtc->config.shared_dpll = i;
- DRM_DEBUG_DRIVER("using pll %d for pipe %c\n", i, pipe_name(crtc->pipe));
+ DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
+ pipe_name(crtc->pipe));
if (pll->active == 0) {
- DRM_DEBUG_DRIVER("setting up pll %d\n", i);
+ DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
WARN_ON(pll->on);
assert_shared_dpll_disabled(dev_priv, pll, NULL);
@@ -8665,6 +8666,11 @@ static void intel_cpu_pll_init(struct drm_device *dev)
intel_ddi_pll_init(dev);
}
+static char *ibx_pch_dpll_names[] = {
+ "PCH DPLL A",
+ "PCH DPLL B",
+};
+
static void ibx_pch_dpll_init(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
@@ -8673,6 +8679,8 @@ static void ibx_pch_dpll_init(struct drm_device *dev)
dev_priv->num_shared_dpll = 2;
for (i = 0; i < dev_priv->num_shared_dpll; i++) {
+ dev_priv->shared_dplls[i].id = i;
+ dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
dev_priv->shared_dplls[i].pll_reg = _PCH_DPLL(i);
dev_priv->shared_dplls[i].fp0_reg = _PCH_FP0(i);
dev_priv->shared_dplls[i].fp1_reg = _PCH_FP1(i);
--
1.7.11.7
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