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path: root/drivers/gpu/drm/i915/display/intel_pch_refclk.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_pch_refclk.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_pch_refclk.c133
1 files changed, 69 insertions, 64 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_pch_refclk.c b/drivers/gpu/drm/i915/display/intel_pch_refclk.c
index 33467de3d115..693b90e3dfc3 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_refclk.c
+++ b/drivers/gpu/drm/i915/display/intel_pch_refclk.c
@@ -11,27 +11,28 @@
#include "intel_pch_refclk.h"
#include "intel_sbi.h"
-static void lpt_fdi_reset_mphy(struct drm_i915_private *dev_priv)
+static void lpt_fdi_reset_mphy(struct intel_display *display)
{
- intel_de_rmw(dev_priv, SOUTH_CHICKEN2, 0, FDI_MPHY_IOSFSB_RESET_CTL);
+ intel_de_rmw(display, SOUTH_CHICKEN2, 0, FDI_MPHY_IOSFSB_RESET_CTL);
- if (wait_for_us(intel_de_read(dev_priv, SOUTH_CHICKEN2) &
+ if (wait_for_us(intel_de_read(display, SOUTH_CHICKEN2) &
FDI_MPHY_IOSFSB_RESET_STATUS, 100))
- drm_err(&dev_priv->drm, "FDI mPHY reset assert timeout\n");
+ drm_err(display->drm, "FDI mPHY reset assert timeout\n");
- intel_de_rmw(dev_priv, SOUTH_CHICKEN2, FDI_MPHY_IOSFSB_RESET_CTL, 0);
+ intel_de_rmw(display, SOUTH_CHICKEN2, FDI_MPHY_IOSFSB_RESET_CTL, 0);
- if (wait_for_us((intel_de_read(dev_priv, SOUTH_CHICKEN2) &
+ if (wait_for_us((intel_de_read(display, SOUTH_CHICKEN2) &
FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
- drm_err(&dev_priv->drm, "FDI mPHY reset de-assert timeout\n");
+ drm_err(display->drm, "FDI mPHY reset de-assert timeout\n");
}
/* WaMPhyProgramming:hsw */
-static void lpt_fdi_program_mphy(struct drm_i915_private *dev_priv)
+static void lpt_fdi_program_mphy(struct intel_display *display)
{
+ struct drm_i915_private *dev_priv = to_i915(display->drm);
u32 tmp;
- lpt_fdi_reset_mphy(dev_priv);
+ lpt_fdi_reset_mphy(display);
tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
tmp &= ~(0xFF << 24);
@@ -103,11 +104,12 @@ static void lpt_fdi_program_mphy(struct drm_i915_private *dev_priv)
intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
}
-void lpt_disable_iclkip(struct drm_i915_private *dev_priv)
+void lpt_disable_iclkip(struct intel_display *display)
{
+ struct drm_i915_private *dev_priv = to_i915(display->drm);
u32 temp;
- intel_de_write(dev_priv, PIXCLK_GATE, PIXCLK_GATE_GATE);
+ intel_de_write(display, PIXCLK_GATE, PIXCLK_GATE_GATE);
intel_sbi_lock(dev_priv);
@@ -175,24 +177,25 @@ int lpt_iclkip(const struct intel_crtc_state *crtc_state)
/* Program iCLKIP clock to the desired frequency */
void lpt_program_iclkip(const struct intel_crtc_state *crtc_state)
{
+ struct intel_display *display = to_intel_display(crtc_state);
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
int clock = crtc_state->hw.adjusted_mode.crtc_clock;
struct iclkip_params p;
u32 temp;
- lpt_disable_iclkip(dev_priv);
+ lpt_disable_iclkip(display);
lpt_compute_iclkip(&p, clock);
- drm_WARN_ON(&dev_priv->drm, lpt_iclkip_freq(&p) != clock);
+ drm_WARN_ON(display->drm, lpt_iclkip_freq(&p) != clock);
/* This should not happen with any sane values */
- drm_WARN_ON(&dev_priv->drm, SBI_SSCDIVINTPHASE_DIVSEL(p.divsel) &
+ drm_WARN_ON(display->drm, SBI_SSCDIVINTPHASE_DIVSEL(p.divsel) &
~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
- drm_WARN_ON(&dev_priv->drm, SBI_SSCDIVINTPHASE_DIR(p.phasedir) &
+ drm_WARN_ON(display->drm, SBI_SSCDIVINTPHASE_DIR(p.phasedir) &
~SBI_SSCDIVINTPHASE_INCVAL_MASK);
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
clock, p.auxdiv, p.divsel, p.phasedir, p.phaseinc);
@@ -224,15 +227,16 @@ void lpt_program_iclkip(const struct intel_crtc_state *crtc_state)
/* Wait for initialization time */
udelay(24);
- intel_de_write(dev_priv, PIXCLK_GATE, PIXCLK_GATE_UNGATE);
+ intel_de_write(display, PIXCLK_GATE, PIXCLK_GATE_UNGATE);
}
-int lpt_get_iclkip(struct drm_i915_private *dev_priv)
+int lpt_get_iclkip(struct intel_display *display)
{
+ struct drm_i915_private *dev_priv = to_i915(display->drm);
struct iclkip_params p;
u32 temp;
- if ((intel_de_read(dev_priv, PIXCLK_GATE) & PIXCLK_GATE_UNGATE) == 0)
+ if ((intel_de_read(display, PIXCLK_GATE) & PIXCLK_GATE_UNGATE) == 0)
return 0;
iclkip_params_init(&p);
@@ -268,15 +272,16 @@ int lpt_get_iclkip(struct drm_i915_private *dev_priv)
* - Sequence to enable CLKOUT_DP without spread
* - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
*/
-static void lpt_enable_clkout_dp(struct drm_i915_private *dev_priv,
+static void lpt_enable_clkout_dp(struct intel_display *display,
bool with_spread, bool with_fdi)
{
+ struct drm_i915_private *dev_priv = to_i915(display->drm);
u32 reg, tmp;
- if (drm_WARN(&dev_priv->drm, with_fdi && !with_spread,
+ if (drm_WARN(display->drm, with_fdi && !with_spread,
"FDI requires downspread\n"))
with_spread = true;
- if (drm_WARN(&dev_priv->drm, HAS_PCH_LPT_LP(dev_priv) &&
+ if (drm_WARN(display->drm, HAS_PCH_LPT_LP(display) &&
with_fdi, "LP PCH doesn't have FDI\n"))
with_fdi = false;
@@ -295,10 +300,10 @@ static void lpt_enable_clkout_dp(struct drm_i915_private *dev_priv,
intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
if (with_fdi)
- lpt_fdi_program_mphy(dev_priv);
+ lpt_fdi_program_mphy(display);
}
- reg = HAS_PCH_LPT_LP(dev_priv) ? SBI_GEN0 : SBI_DBUFF0;
+ reg = HAS_PCH_LPT_LP(display) ? SBI_GEN0 : SBI_DBUFF0;
tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
@@ -307,13 +312,14 @@ static void lpt_enable_clkout_dp(struct drm_i915_private *dev_priv,
}
/* Sequence to disable CLKOUT_DP */
-void lpt_disable_clkout_dp(struct drm_i915_private *dev_priv)
+void lpt_disable_clkout_dp(struct intel_display *display)
{
+ struct drm_i915_private *dev_priv = to_i915(display->drm);
u32 reg, tmp;
intel_sbi_lock(dev_priv);
- reg = HAS_PCH_LPT_LP(dev_priv) ? SBI_GEN0 : SBI_DBUFF0;
+ reg = HAS_PCH_LPT_LP(display) ? SBI_GEN0 : SBI_DBUFF0;
tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
@@ -364,15 +370,16 @@ static const u16 sscdivintphase[] = {
* < 0 slow down the clock, > 0 speed up the clock, 0 == no bend (135MHz)
* change in clock period = -(steps / 10) * 5.787 ps
*/
-static void lpt_bend_clkout_dp(struct drm_i915_private *dev_priv, int steps)
+static void lpt_bend_clkout_dp(struct intel_display *display, int steps)
{
+ struct drm_i915_private *dev_priv = to_i915(display->drm);
u32 tmp;
int idx = BEND_IDX(steps);
- if (drm_WARN_ON(&dev_priv->drm, steps % 5 != 0))
+ if (drm_WARN_ON(display->drm, steps % 5 != 0))
return;
- if (drm_WARN_ON(&dev_priv->drm, idx >= ARRAY_SIZE(sscdivintphase)))
+ if (drm_WARN_ON(display->drm, idx >= ARRAY_SIZE(sscdivintphase)))
return;
intel_sbi_lock(dev_priv);
@@ -393,10 +400,10 @@ static void lpt_bend_clkout_dp(struct drm_i915_private *dev_priv, int steps)
#undef BEND_IDX
-static bool spll_uses_pch_ssc(struct drm_i915_private *dev_priv)
+static bool spll_uses_pch_ssc(struct intel_display *display)
{
- u32 fuse_strap = intel_de_read(dev_priv, FUSE_STRAP);
- u32 ctl = intel_de_read(dev_priv, SPLL_CTL);
+ u32 fuse_strap = intel_de_read(display, FUSE_STRAP);
+ u32 ctl = intel_de_read(display, SPLL_CTL);
if ((ctl & SPLL_PLL_ENABLE) == 0)
return false;
@@ -405,18 +412,17 @@ static bool spll_uses_pch_ssc(struct drm_i915_private *dev_priv)
(fuse_strap & HSW_CPU_SSC_ENABLE) == 0)
return true;
- if (IS_BROADWELL(dev_priv) &&
+ if (display->platform.broadwell &&
(ctl & SPLL_REF_MASK) == SPLL_REF_PCH_SSC_BDW)
return true;
return false;
}
-static bool wrpll_uses_pch_ssc(struct drm_i915_private *dev_priv,
- enum intel_dpll_id id)
+static bool wrpll_uses_pch_ssc(struct intel_display *display, enum intel_dpll_id id)
{
- u32 fuse_strap = intel_de_read(dev_priv, FUSE_STRAP);
- u32 ctl = intel_de_read(dev_priv, WRPLL_CTL(id));
+ u32 fuse_strap = intel_de_read(display, FUSE_STRAP);
+ u32 ctl = intel_de_read(display, WRPLL_CTL(id));
if ((ctl & WRPLL_PLL_ENABLE) == 0)
return false;
@@ -424,7 +430,7 @@ static bool wrpll_uses_pch_ssc(struct drm_i915_private *dev_priv,
if ((ctl & WRPLL_REF_MASK) == WRPLL_REF_PCH_SSC)
return true;
- if ((IS_BROADWELL(dev_priv) || IS_HASWELL_ULT(dev_priv)) &&
+ if ((display->platform.broadwell || display->platform.haswell_ult) &&
(ctl & WRPLL_REF_MASK) == WRPLL_REF_MUXED_SSC_BDW &&
(fuse_strap & HSW_CPU_SSC_ENABLE) == 0)
return true;
@@ -432,12 +438,12 @@ static bool wrpll_uses_pch_ssc(struct drm_i915_private *dev_priv,
return false;
}
-static void lpt_init_pch_refclk(struct drm_i915_private *dev_priv)
+static void lpt_init_pch_refclk(struct intel_display *display)
{
struct intel_encoder *encoder;
bool has_fdi = false;
- for_each_intel_encoder(&dev_priv->drm, encoder) {
+ for_each_intel_encoder(display->drm, encoder) {
switch (encoder->type) {
case INTEL_OUTPUT_ANALOG:
has_fdi = true;
@@ -462,37 +468,36 @@ static void lpt_init_pch_refclk(struct drm_i915_private *dev_priv)
* clock hierarchy. That would also allow us to do
* clock bending finally.
*/
- dev_priv->display.dpll.pch_ssc_use = 0;
+ display->dpll.pch_ssc_use = 0;
- if (spll_uses_pch_ssc(dev_priv)) {
- drm_dbg_kms(&dev_priv->drm, "SPLL using PCH SSC\n");
- dev_priv->display.dpll.pch_ssc_use |= BIT(DPLL_ID_SPLL);
+ if (spll_uses_pch_ssc(display)) {
+ drm_dbg_kms(display->drm, "SPLL using PCH SSC\n");
+ display->dpll.pch_ssc_use |= BIT(DPLL_ID_SPLL);
}
- if (wrpll_uses_pch_ssc(dev_priv, DPLL_ID_WRPLL1)) {
- drm_dbg_kms(&dev_priv->drm, "WRPLL1 using PCH SSC\n");
- dev_priv->display.dpll.pch_ssc_use |= BIT(DPLL_ID_WRPLL1);
+ if (wrpll_uses_pch_ssc(display, DPLL_ID_WRPLL1)) {
+ drm_dbg_kms(display->drm, "WRPLL1 using PCH SSC\n");
+ display->dpll.pch_ssc_use |= BIT(DPLL_ID_WRPLL1);
}
- if (wrpll_uses_pch_ssc(dev_priv, DPLL_ID_WRPLL2)) {
- drm_dbg_kms(&dev_priv->drm, "WRPLL2 using PCH SSC\n");
- dev_priv->display.dpll.pch_ssc_use |= BIT(DPLL_ID_WRPLL2);
+ if (wrpll_uses_pch_ssc(display, DPLL_ID_WRPLL2)) {
+ drm_dbg_kms(display->drm, "WRPLL2 using PCH SSC\n");
+ display->dpll.pch_ssc_use |= BIT(DPLL_ID_WRPLL2);
}
- if (dev_priv->display.dpll.pch_ssc_use)
+ if (display->dpll.pch_ssc_use)
return;
if (has_fdi) {
- lpt_bend_clkout_dp(dev_priv, 0);
- lpt_enable_clkout_dp(dev_priv, true, true);
+ lpt_bend_clkout_dp(display, 0);
+ lpt_enable_clkout_dp(display, true, true);
} else {
- lpt_disable_clkout_dp(dev_priv);
+ lpt_disable_clkout_dp(display);
}
}
-static void ilk_init_pch_refclk(struct drm_i915_private *dev_priv)
+static void ilk_init_pch_refclk(struct intel_display *display)
{
- struct intel_display *display = &dev_priv->display;
struct intel_encoder *encoder;
struct intel_shared_dpll *pll;
int i;
@@ -521,7 +526,7 @@ static void ilk_init_pch_refclk(struct drm_i915_private *dev_priv)
}
}
- if (HAS_PCH_IBX(dev_priv)) {
+ if (HAS_PCH_IBX(display)) {
has_ck505 = display->vbt.display_clock_mode;
can_ssc = has_ck505;
} else {
@@ -607,7 +612,7 @@ static void ilk_init_pch_refclk(struct drm_i915_private *dev_priv)
/* SSC must be turned on before enabling the CPU output */
if (intel_panel_use_ssc(display) && can_ssc) {
- drm_dbg_kms(&dev_priv->drm, "Using SSC on panel\n");
+ drm_dbg_kms(display->drm, "Using SSC on panel\n");
val |= DREF_SSC1_ENABLE;
} else {
val &= ~DREF_SSC1_ENABLE;
@@ -623,7 +628,7 @@ static void ilk_init_pch_refclk(struct drm_i915_private *dev_priv)
/* Enable CPU source on CPU attached eDP */
if (has_cpu_edp) {
if (intel_panel_use_ssc(display) && can_ssc) {
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"Using SSC on eDP\n");
val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
} else {
@@ -670,10 +675,10 @@ static void ilk_init_pch_refclk(struct drm_i915_private *dev_priv)
/*
* Initialize reference clocks when the driver loads
*/
-void intel_init_pch_refclk(struct drm_i915_private *dev_priv)
+void intel_init_pch_refclk(struct intel_display *display)
{
- if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv))
- ilk_init_pch_refclk(dev_priv);
- else if (HAS_PCH_LPT(dev_priv))
- lpt_init_pch_refclk(dev_priv);
+ if (HAS_PCH_IBX(display) || HAS_PCH_CPT(display))
+ ilk_init_pch_refclk(display);
+ else if (HAS_PCH_LPT(display))
+ lpt_init_pch_refclk(display);
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-05-31 14:32:50 +0300