1 files changed, 151 insertions, 34 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 98f80a6c63e8..a10e56e7cf31 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -27,9 +27,12 @@
 
 #include "i915_drv.h"
 #include "i915_reg.h"
+#include "intel_crtc.h"
 #include "intel_de.h"
-#include "intel_display_rpm.h"
 #include "intel_display_power_well.h"
+#include "intel_display_regs.h"
+#include "intel_display_rpm.h"
+#include "intel_display_types.h"
 #include "intel_dmc.h"
 #include "intel_dmc_regs.h"
 #include "intel_step.h"
@@ -173,7 +176,6 @@ MODULE_FIRMWARE(BXT_DMC_PATH);
 
 static const char *dmc_firmware_default(struct intel_display *display, u32 *size)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	const char *fw_path = NULL;
 	u32 max_fw_size = 0;
 
@@ -189,39 +191,39 @@ static const char *dmc_firmware_default(struct intel_display *display, u32 *size
 	} else if (DISPLAY_VERx100(display) == 1400) {
 		fw_path = MTL_DMC_PATH;
 		max_fw_size = XELPDP_DMC_MAX_FW_SIZE;
-	} else if (IS_DG2(i915)) {
+	} else if (display->platform.dg2) {
 		fw_path = DG2_DMC_PATH;
 		max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE;
-	} else if (IS_ALDERLAKE_P(i915)) {
+	} else if (display->platform.alderlake_p) {
 		fw_path = ADLP_DMC_PATH;
 		max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE;
-	} else if (IS_ALDERLAKE_S(i915)) {
+	} else if (display->platform.alderlake_s) {
 		fw_path = ADLS_DMC_PATH;
 		max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE;
-	} else if (IS_DG1(i915)) {
+	} else if (display->platform.dg1) {
 		fw_path = DG1_DMC_PATH;
 		max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE;
-	} else if (IS_ROCKETLAKE(i915)) {
+	} else if (display->platform.rocketlake) {
 		fw_path = RKL_DMC_PATH;
 		max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE;
-	} else if (IS_TIGERLAKE(i915)) {
+	} else if (display->platform.tigerlake) {
 		fw_path = TGL_DMC_PATH;
 		max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE;
 	} else if (DISPLAY_VER(display) == 11) {
 		fw_path = ICL_DMC_PATH;
 		max_fw_size = ICL_DMC_MAX_FW_SIZE;
-	} else if (IS_GEMINILAKE(i915)) {
+	} else if (display->platform.geminilake) {
 		fw_path = GLK_DMC_PATH;
 		max_fw_size = GLK_DMC_MAX_FW_SIZE;
-	} else if (IS_KABYLAKE(i915) ||
-		   IS_COFFEELAKE(i915) ||
-		   IS_COMETLAKE(i915)) {
+	} else if (display->platform.kabylake ||
+		   display->platform.coffeelake ||
+		   display->platform.cometlake) {
 		fw_path = KBL_DMC_PATH;
 		max_fw_size = KBL_DMC_MAX_FW_SIZE;
-	} else if (IS_SKYLAKE(i915)) {
+	} else if (display->platform.skylake) {
 		fw_path = SKL_DMC_PATH;
 		max_fw_size = SKL_DMC_MAX_FW_SIZE;
-	} else if (IS_BROXTON(i915)) {
+	} else if (display->platform.broxton) {
 		fw_path = BXT_DMC_PATH;
 		max_fw_size = BXT_DMC_MAX_FW_SIZE;
 	}
@@ -426,7 +428,7 @@ static void disable_event_handler(struct intel_display *display,
 		       REG_FIELD_PREP(DMC_EVT_CTL_TYPE_MASK,
 				      DMC_EVT_CTL_TYPE_EDGE_0_1) |
 		       REG_FIELD_PREP(DMC_EVT_CTL_EVENT_ID_MASK,
-				      DMC_EVT_CTL_EVENT_ID_FALSE));
+				      DMC_EVENT_FALSE));
 	intel_de_write(display, htp_reg, 0);
 }
 
@@ -491,6 +493,17 @@ static void pipedmc_clock_gating_wa(struct intel_display *display, bool enable)
 		adlp_pipedmc_clock_gating_wa(display, enable);
 }
 
+static u32 pipedmc_interrupt_mask(struct intel_display *display)
+{
+	/*
+	 * FIXME PIPEDMC_ERROR not enabled for now due to LNL pipe B
+	 * triggering it during the first DC state transition. Figure
+	 * out what is going on...
+	 */
+	return PIPEDMC_GTT_FAULT |
+		PIPEDMC_ATS_FAULT;
+}
+
 void intel_dmc_enable_pipe(struct intel_display *display, enum pipe pipe)
 {
 	enum intel_dmc_id dmc_id = PIPE_TO_DMC_ID(pipe);
@@ -498,6 +511,11 @@ void intel_dmc_enable_pipe(struct intel_display *display, enum pipe pipe)
 	if (!is_valid_dmc_id(dmc_id) || !has_dmc_id_fw(display, dmc_id))
 		return;
 
+	if (DISPLAY_VER(display) >= 20) {
+		intel_de_write(display, PIPEDMC_INTERRUPT(pipe), pipedmc_interrupt_mask(display));
+		intel_de_write(display, PIPEDMC_INTERRUPT_MASK(pipe), ~pipedmc_interrupt_mask(display));
+	}
+
 	if (DISPLAY_VER(display) >= 14)
 		intel_de_rmw(display, MTL_PIPEDMC_CONTROL, 0, PIPEDMC_ENABLE_MTL(pipe));
 	else
@@ -515,6 +533,19 @@ void intel_dmc_disable_pipe(struct intel_display *display, enum pipe pipe)
 		intel_de_rmw(display, MTL_PIPEDMC_CONTROL, PIPEDMC_ENABLE_MTL(pipe), 0);
 	else
 		intel_de_rmw(display, PIPEDMC_CONTROL(pipe), PIPEDMC_ENABLE, 0);
+
+	if (DISPLAY_VER(display) >= 20) {
+		intel_de_write(display, PIPEDMC_INTERRUPT_MASK(pipe), ~0);
+		intel_de_write(display, PIPEDMC_INTERRUPT(pipe), pipedmc_interrupt_mask(display));
+	}
+}
+
+static u32 dmc_evt_ctl_disable(void)
+{
+	return REG_FIELD_PREP(DMC_EVT_CTL_TYPE_MASK,
+			      DMC_EVT_CTL_TYPE_EDGE_0_1) |
+		REG_FIELD_PREP(DMC_EVT_CTL_EVENT_ID_MASK,
+			       DMC_EVENT_FALSE);
 }
 
 static bool is_dmc_evt_ctl_reg(struct intel_display *display,
@@ -537,12 +568,79 @@ static bool is_dmc_evt_htp_reg(struct intel_display *display,
 	return offset >= start && offset < end;
 }
 
+static bool is_event_handler(struct intel_display *display,
+			     enum intel_dmc_id dmc_id,
+			     unsigned int event_id,
+			     i915_reg_t reg, u32 data)
+{
+	return is_dmc_evt_ctl_reg(display, dmc_id, reg) &&
+		REG_FIELD_GET(DMC_EVT_CTL_EVENT_ID_MASK, data) == event_id;
+}
+
+static void dmc_configure_event(struct intel_display *display,
+				enum intel_dmc_id dmc_id,
+				unsigned int event_id,
+				bool enable)
+{
+	struct intel_dmc *dmc = display_to_dmc(display);
+	int num_handlers = 0;
+	int i;
+
+	for (i = 0; i < dmc->dmc_info[dmc_id].mmio_count; i++) {
+		i915_reg_t reg = dmc->dmc_info[dmc_id].mmioaddr[i];
+		u32 data = dmc->dmc_info[dmc_id].mmiodata[i];
+
+		if (!is_event_handler(display, dmc_id, event_id, reg, data))
+			continue;
+
+		intel_de_write(display, reg, enable ? data : dmc_evt_ctl_disable());
+		num_handlers++;
+	}
+
+	drm_WARN_ONCE(display->drm, num_handlers != 1,
+		      "DMC %d has %d handlers for event 0x%x\n",
+		      dmc_id, num_handlers, event_id);
+}
+
+/**
+ * intel_dmc_block_pkgc() - block PKG C-state
+ * @display: display instance
+ * @pipe: pipe which register use to block
+ * @block: block/unblock
+ *
+ * This interface is target for Wa_16025596647 usage. I.e. to set/clear
+ * PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_ALWAYS bit in PIPEDMC_BLOCK_PKGC_SW register.
+ */
+void intel_dmc_block_pkgc(struct intel_display *display, enum pipe pipe,
+			  bool block)
+{
+	intel_de_rmw(display, PIPEDMC_BLOCK_PKGC_SW(pipe),
+		     PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_ALWAYS, block ?
+		     PIPEDMC_BLOCK_PKGC_SW_BLOCK_PKGC_ALWAYS : 0);
+}
+
+/**
+ * intel_dmc_start_pkgc_exit_at_start_of_undelayed_vblank() - start of PKG
+ * C-state exit
+ * @display: display instance
+ * @pipe: pipe which register use to block
+ * @enable: enable/disable
+ *
+ * This interface is target for Wa_16025596647 usage. I.e. start the package C
+ * exit at the start of the undelayed vblank
+ */
+void intel_dmc_start_pkgc_exit_at_start_of_undelayed_vblank(struct intel_display *display,
+							    enum pipe pipe, bool enable)
+{
+	enum intel_dmc_id dmc_id = PIPE_TO_DMC_ID(pipe);
+
+	dmc_configure_event(display, dmc_id, PIPEDMC_EVENT_VBLANK, enable);
+}
+
 static bool disable_dmc_evt(struct intel_display *display,
 			    enum intel_dmc_id dmc_id,
 			    i915_reg_t reg, u32 data)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
 	if (!is_dmc_evt_ctl_reg(display, dmc_id, reg))
 		return false;
 
@@ -551,13 +649,13 @@ static bool disable_dmc_evt(struct intel_display *display,
 		return true;
 
 	/* also disable the flip queue event on the main DMC on TGL */
-	if (IS_TIGERLAKE(i915) &&
-	    REG_FIELD_GET(DMC_EVT_CTL_EVENT_ID_MASK, data) == DMC_EVT_CTL_EVENT_ID_CLK_MSEC)
+	if (display->platform.tigerlake &&
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_CLK_MSEC, reg, data))
 		return true;
 
 	/* also disable the HRR event on the main DMC on TGL/ADLS */
-	if ((IS_TIGERLAKE(i915) || IS_ALDERLAKE_S(i915)) &&
-	    REG_FIELD_GET(DMC_EVT_CTL_EVENT_ID_MASK, data) == DMC_EVT_CTL_EVENT_ID_VBLANK_A)
+	if ((display->platform.tigerlake || display->platform.alderlake_s) &&
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_A, reg, data))
 		return true;
 
 	return false;
@@ -570,10 +668,7 @@ static u32 dmc_mmiodata(struct intel_display *display,
 	if (disable_dmc_evt(display, dmc_id,
 			    dmc->dmc_info[dmc_id].mmioaddr[i],
 			    dmc->dmc_info[dmc_id].mmiodata[i]))
-		return REG_FIELD_PREP(DMC_EVT_CTL_TYPE_MASK,
-				      DMC_EVT_CTL_TYPE_EDGE_0_1) |
-			REG_FIELD_PREP(DMC_EVT_CTL_EVENT_ID_MASK,
-				       DMC_EVT_CTL_EVENT_ID_FALSE);
+		return dmc_evt_ctl_disable();
 	else
 		return dmc->dmc_info[dmc_id].mmiodata[i];
 }
@@ -588,7 +683,6 @@ static u32 dmc_mmiodata(struct intel_display *display,
  */
 void intel_dmc_load_program(struct intel_display *display)
 {
-	struct drm_i915_private *i915 __maybe_unused = to_i915(display->drm);
 	struct i915_power_domains *power_domains = &display->power.domains;
 	struct intel_dmc *dmc = display_to_dmc(display);
 	enum intel_dmc_id dmc_id;
@@ -1012,9 +1106,7 @@ static void intel_dmc_runtime_pm_put(struct intel_display *display)
 
 static const char *dmc_fallback_path(struct intel_display *display)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
-	if (IS_ALDERLAKE_P(i915))
+	if (display->platform.alderlake_p)
 		return ADLP_DMC_FALLBACK_PATH;
 
 	return NULL;
@@ -1279,7 +1371,6 @@ static bool intel_dmc_get_dc6_allowed_count(struct intel_display *display, u32 *
 static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 {
 	struct intel_display *display = m->private;
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	struct intel_dmc *dmc = display_to_dmc(display);
 	struct ref_tracker *wakeref;
 	i915_reg_t dc5_reg, dc6_reg = INVALID_MMIO_REG;
@@ -1299,7 +1390,7 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 	seq_printf(m, "Pipe A fw loaded: %s\n",
 		   str_yes_no(has_dmc_id_fw(display, DMC_FW_PIPEA)));
 	seq_printf(m, "Pipe B fw needed: %s\n",
-		   str_yes_no(IS_ALDERLAKE_P(i915) ||
+		   str_yes_no(display->platform.alderlake_p ||
 			      DISPLAY_VER(display) >= 14));
 	seq_printf(m, "Pipe B fw loaded: %s\n",
 		   str_yes_no(has_dmc_id_fw(display, DMC_FW_PIPEB)));
@@ -1313,7 +1404,7 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 	if (DISPLAY_VER(display) >= 12) {
 		i915_reg_t dc3co_reg;
 
-		if (IS_DGFX(i915) || DISPLAY_VER(display) >= 14) {
+		if (display->platform.dgfx || DISPLAY_VER(display) >= 14) {
 			dc3co_reg = DG1_DMC_DEBUG3;
 			dc5_reg = DG1_DMC_DEBUG_DC5_COUNT;
 		} else {
@@ -1325,9 +1416,9 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 		seq_printf(m, "DC3CO count: %d\n",
 			   intel_de_read(display, dc3co_reg));
 	} else {
-		dc5_reg = IS_BROXTON(i915) ? BXT_DMC_DC3_DC5_COUNT :
+		dc5_reg = display->platform.broxton ? BXT_DMC_DC3_DC5_COUNT :
 			SKL_DMC_DC3_DC5_COUNT;
-		if (!IS_GEMINILAKE(i915) && !IS_BROXTON(i915))
+		if (!display->platform.geminilake && !display->platform.broxton)
 			dc6_reg = SKL_DMC_DC5_DC6_COUNT;
 	}
 
@@ -1362,3 +1453,29 @@ void intel_dmc_debugfs_register(struct intel_display *display)
 	debugfs_create_file("i915_dmc_info", 0444, minor->debugfs_root,
 			    display, &intel_dmc_debugfs_status_fops);
 }
+
+void intel_pipedmc_irq_handler(struct intel_display *display, enum pipe pipe)
+{
+	struct intel_crtc *crtc = intel_crtc_for_pipe(display, pipe);
+	u32 tmp;
+
+	if (DISPLAY_VER(display) >= 20) {
+		tmp = intel_de_read(display, PIPEDMC_INTERRUPT(pipe));
+		intel_de_write(display, PIPEDMC_INTERRUPT(pipe), tmp);
+
+		if (tmp & PIPEDMC_ATS_FAULT)
+			drm_err_ratelimited(display->drm, "[CRTC:%d:%s] PIPEDMC ATS fault\n",
+					    crtc->base.base.id, crtc->base.name);
+		if (tmp & PIPEDMC_GTT_FAULT)
+			drm_err_ratelimited(display->drm, "[CRTC:%d:%s] PIPEDMC GTT fault\n",
+					    crtc->base.base.id, crtc->base.name);
+		if (tmp & PIPEDMC_ERROR)
+			drm_err(display->drm, "[CRTC:%d:%s]] PIPEDMC error\n",
+				crtc->base.base.id, crtc->base.name);
+	}
+
+	tmp = intel_de_read(display, PIPEDMC_STATUS(pipe)) & PIPEDMC_INT_VECTOR_MASK;
+	if (tmp)
+		drm_err(display->drm, "[CRTC:%d:%s]] PIPEDMC interrupt vector 0x%x\n",
+			crtc->base.base.id, crtc->base.name, tmp);
+}