drm/i915/dmc: convert dmc wakelock interface to struct intel_display

Convert the dmc wakelock interface to struct intel_display instead of
struct drm_i915_private. We'll want to convert the intel_de interfaces,
and there's a bit of coupling between the two, so start here.

Cc: Luca Coelho <luciano.coelho@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3c260bbbce0af8714b07157dc032b038efa3bf1c.1713358679.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_de.h

@@ -15,11 +15,11 @@ intel_de_read(struct drm_i915_private *i915, i915_reg_t reg)
 {
 	u32 val;
 
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	val = intel_uncore_read(&i915->uncore, reg);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 
 	return val;
 }
@@ -29,11 +29,11 @@ intel_de_read8(struct drm_i915_private *i915, i915_reg_t reg)
 {
 	u8 val;
 
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	val = intel_uncore_read8(&i915->uncore, reg);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 
 	return val;
 }
@@ -44,13 +44,13 @@ intel_de_read64_2x32(struct drm_i915_private *i915,
 {
 	u64 val;
 
-	intel_dmc_wl_get(i915, lower_reg);
-	intel_dmc_wl_get(i915, upper_reg);
+	intel_dmc_wl_get(&i915->display, lower_reg);
+	intel_dmc_wl_get(&i915->display, upper_reg);
 
 	val = intel_uncore_read64_2x32(&i915->uncore, lower_reg, upper_reg);
 
-	intel_dmc_wl_put(i915, upper_reg);
-	intel_dmc_wl_put(i915, lower_reg);
+	intel_dmc_wl_put(&i915->display, upper_reg);
+	intel_dmc_wl_put(&i915->display, lower_reg);
 
 	return val;
 }
@@ -58,21 +58,21 @@ intel_de_read64_2x32(struct drm_i915_private *i915,
 static inline void
 intel_de_posting_read(struct drm_i915_private *i915, i915_reg_t reg)
 {
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	intel_uncore_posting_read(&i915->uncore, reg);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 }
 
 static inline void
 intel_de_write(struct drm_i915_private *i915, i915_reg_t reg, u32 val)
 {
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	intel_uncore_write(&i915->uncore, reg, val);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 }
 
 static inline u32
@@ -87,11 +87,11 @@ intel_de_rmw(struct drm_i915_private *i915, i915_reg_t reg, u32 clear, u32 set)
 {
 	u32 val;
 
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	val = __intel_de_rmw_nowl(i915, reg, clear, set);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 
 	return val;
 }
@@ -110,11 +110,11 @@ intel_de_wait(struct drm_i915_private *i915, i915_reg_t reg,
 {
 	int ret;
 
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	ret = __intel_de_wait_for_register_nowl(i915, reg, mask, value, timeout);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 
 	return ret;
 }
@@ -125,11 +125,11 @@ intel_de_wait_fw(struct drm_i915_private *i915, i915_reg_t reg,
 {
 	int ret;
 
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	ret = intel_wait_for_register_fw(&i915->uncore, reg, mask, value, timeout);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 
 	return ret;
 }
@@ -142,12 +142,12 @@ intel_de_wait_custom(struct drm_i915_private *i915, i915_reg_t reg,
 {
 	int ret;
 
-	intel_dmc_wl_get(i915, reg);
+	intel_dmc_wl_get(&i915->display, reg);
 
 	ret = __intel_wait_for_register(&i915->uncore, reg, mask, value,
 					fast_timeout_us, slow_timeout_ms, out_value);
 
-	intel_dmc_wl_put(i915, reg);
+	intel_dmc_wl_put(&i915->display, reg);
 
 	return ret;
 }

drivers/gpu/drm/i915/display/intel_display_driver.c

@@ -198,7 +198,7 @@ void intel_display_driver_early_probe(struct drm_i915_private *i915)
 	intel_dpll_init_clock_hook(i915);
 	intel_init_display_hooks(i915);
 	intel_fdi_init_hook(i915);
-	intel_dmc_wl_init(i915);
+	intel_dmc_wl_init(&i915->display);
 }
 
 /* part #1: call before irq install */

drivers/gpu/drm/i915/display/intel_display_power_well.c

@@ -822,7 +822,7 @@ void gen9_enable_dc5(struct drm_i915_private *dev_priv)
 		intel_de_rmw(dev_priv, GEN8_CHICKEN_DCPR_1,
 			     0, SKL_SELECT_ALTERNATE_DC_EXIT);
 
-	intel_dmc_wl_enable(dev_priv);
+	intel_dmc_wl_enable(&dev_priv->display);
 
 	gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC5);
 }
@@ -853,7 +853,7 @@ void skl_enable_dc6(struct drm_i915_private *dev_priv)
 		intel_de_rmw(dev_priv, GEN8_CHICKEN_DCPR_1,
 			     0, SKL_SELECT_ALTERNATE_DC_EXIT);
 
-	intel_dmc_wl_enable(dev_priv);
+	intel_dmc_wl_enable(&dev_priv->display);
 
 	gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
 }
@@ -975,7 +975,7 @@ void gen9_disable_dc_states(struct drm_i915_private *dev_priv)
 	if (!HAS_DISPLAY(dev_priv))
 		return;
 
-	intel_dmc_wl_disable(dev_priv);
+	intel_dmc_wl_disable(&dev_priv->display);
 
 	intel_cdclk_get_cdclk(dev_priv, &cdclk_config);
 	/* Can't read out voltage_level so can't use intel_cdclk_changed() */

drivers/gpu/drm/i915/display/intel_dmc.c

@@ -553,7 +553,7 @@ void intel_dmc_disable_program(struct drm_i915_private *i915)
 	disable_all_event_handlers(i915);
 	pipedmc_clock_gating_wa(i915, false);
 
-	intel_dmc_wl_disable(i915);
+	intel_dmc_wl_disable(&i915->display);
 }
 
 void assert_dmc_loaded(struct drm_i915_private *i915)
@@ -1083,7 +1083,7 @@ void intel_dmc_suspend(struct drm_i915_private *i915)
 	if (dmc)
 		flush_work(&dmc->work);
 
-	intel_dmc_wl_disable(i915);
+	intel_dmc_wl_disable(&i915->display);
 
 	/* Drop the reference held in case DMC isn't loaded. */
 	if (!intel_dmc_has_payload(i915))

drivers/gpu/drm/i915/display/intel_dmc_wl.c

@@ -51,9 +51,10 @@ static struct intel_dmc_wl_range lnl_wl_range[] = {
 	{ .start = 0x60000, .end = 0x7ffff },
 };
 
-static void __intel_dmc_wl_release(struct drm_i915_private *i915)
+static void __intel_dmc_wl_release(struct intel_display *display)
 {
-	struct intel_dmc_wl *wl = &i915->display.wl;
+	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct intel_dmc_wl *wl = &display->wl;
 
 	WARN_ON(refcount_read(&wl->refcount));
 
@@ -106,23 +107,25 @@ static bool intel_dmc_wl_check_range(u32 address)
 	return wl_needed;
 }
 
-static bool __intel_dmc_wl_supported(struct drm_i915_private *i915)
+static bool __intel_dmc_wl_supported(struct intel_display *display)
 {
+	struct drm_i915_private *i915 = to_i915(display->drm);
+
 	if (DISPLAY_VER(i915) < 20 ||
 	    !intel_dmc_has_payload(i915) ||
-	    !i915->display.params.enable_dmc_wl)
+	    !display->params.enable_dmc_wl)
 		return false;
 
 	return true;
 }
 
-void intel_dmc_wl_init(struct drm_i915_private *i915)
+void intel_dmc_wl_init(struct intel_display *display)
 {
-	struct intel_dmc_wl *wl = &i915->display.wl;
+	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct intel_dmc_wl *wl = &display->wl;
 
 	/* don't call __intel_dmc_wl_supported(), DMC is not loaded yet */
-	if (DISPLAY_VER(i915) < 20 ||
-	    !i915->display.params.enable_dmc_wl)
+	if (DISPLAY_VER(i915) < 20 || !display->params.enable_dmc_wl)
 		return;
 
 	INIT_DELAYED_WORK(&wl->work, intel_dmc_wl_work);
@@ -130,12 +133,13 @@ void intel_dmc_wl_init(struct drm_i915_private *i915)
 	refcount_set(&wl->refcount, 0);
 }
 
-void intel_dmc_wl_enable(struct drm_i915_private *i915)
+void intel_dmc_wl_enable(struct intel_display *display)
 {
-	struct intel_dmc_wl *wl = &i915->display.wl;
+	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct intel_dmc_wl *wl = &display->wl;
 	unsigned long flags;
 
-	if (!__intel_dmc_wl_supported(i915))
+	if (!__intel_dmc_wl_supported(display))
 		return;
 
 	spin_lock_irqsave(&wl->lock, flags);
@@ -157,12 +161,13 @@ void intel_dmc_wl_enable(struct drm_i915_private *i915)
 	spin_unlock_irqrestore(&wl->lock, flags);
 }
 
-void intel_dmc_wl_disable(struct drm_i915_private *i915)
+void intel_dmc_wl_disable(struct intel_display *display)
 {
-	struct intel_dmc_wl *wl = &i915->display.wl;
+	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct intel_dmc_wl *wl = &display->wl;
 	unsigned long flags;
 
-	if (!__intel_dmc_wl_supported(i915))
+	if (!__intel_dmc_wl_supported(display))
 		return;
 
 	flush_delayed_work(&wl->work);
@@ -183,12 +188,13 @@ void intel_dmc_wl_disable(struct drm_i915_private *i915)
 	spin_unlock_irqrestore(&wl->lock, flags);
 }
 
-void intel_dmc_wl_get(struct drm_i915_private *i915, i915_reg_t reg)
+void intel_dmc_wl_get(struct intel_display *display, i915_reg_t reg)
 {
-	struct intel_dmc_wl *wl = &i915->display.wl;
+	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct intel_dmc_wl *wl = &display->wl;
 	unsigned long flags;
 
-	if (!__intel_dmc_wl_supported(i915))
+	if (!__intel_dmc_wl_supported(display))
 		return;
 
 	if (!intel_dmc_wl_check_range(reg.reg))
@@ -231,12 +237,12 @@ void intel_dmc_wl_get(struct drm_i915_private *i915, i915_reg_t reg)
 	spin_unlock_irqrestore(&wl->lock, flags);
 }
 
-void intel_dmc_wl_put(struct drm_i915_private *i915, i915_reg_t reg)
+void intel_dmc_wl_put(struct intel_display *display, i915_reg_t reg)
 {
-	struct intel_dmc_wl *wl = &i915->display.wl;
+	struct intel_dmc_wl *wl = &display->wl;
 	unsigned long flags;
 
-	if (!__intel_dmc_wl_supported(i915))
+	if (!__intel_dmc_wl_supported(display))
 		return;
 
 	if (!intel_dmc_wl_check_range(reg.reg))
@@ -252,7 +258,7 @@ void intel_dmc_wl_put(struct drm_i915_private *i915, i915_reg_t reg)
 		goto out_unlock;
 
 	if (refcount_dec_and_test(&wl->refcount)) {
-		__intel_dmc_wl_release(i915);
+		__intel_dmc_wl_release(display);
 
 		goto out_unlock;
 	}

drivers/gpu/drm/i915/display/intel_dmc_wl.h

@@ -12,7 +12,7 @@
 
 #include "i915_reg_defs.h"
 
-struct drm_i915_private;
+struct intel_display;
 
 struct intel_dmc_wl {
 	spinlock_t lock; /* protects enabled, taken  and refcount */
@@ -22,10 +22,10 @@ struct intel_dmc_wl {
 	struct delayed_work work;
 };
 
-void intel_dmc_wl_init(struct drm_i915_private *i915);
-void intel_dmc_wl_enable(struct drm_i915_private *i915);
-void intel_dmc_wl_disable(struct drm_i915_private *i915);
-void intel_dmc_wl_get(struct drm_i915_private *i915, i915_reg_t reg);
-void intel_dmc_wl_put(struct drm_i915_private *i915, i915_reg_t reg);
+void intel_dmc_wl_init(struct intel_display *display);
+void intel_dmc_wl_enable(struct intel_display *display);
+void intel_dmc_wl_disable(struct intel_display *display);
+void intel_dmc_wl_get(struct intel_display *display, i915_reg_t reg);
+void intel_dmc_wl_put(struct intel_display *display, i915_reg_t reg);
 
 #endif /* __INTEL_WAKELOCK_H__ */