Merge tag 'drm-intel-next-fixes-2023-02-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

drm/i915 fixes for the v6.3 merge window:
- Fix eDP+DSI dual panel systems
- Fix system suspend when fbdev isn't initialized
- Fix memory leaks in scatterlist
- Fix some MCR register annotations
- Fix documentation build warnings

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87v8k0xyx4.fsf@intel.com

Author: airlied

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

@@ -2043,7 +2043,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv)
 	/* attach connector to encoder */
 	intel_connector_attach_encoder(intel_connector, encoder);
 
-	intel_bios_init_panel_late(dev_priv, &intel_connector->panel, NULL, NULL);
+	encoder->devdata = intel_bios_encoder_data_lookup(dev_priv, port);
+	intel_bios_init_panel_late(dev_priv, &intel_connector->panel, encoder->devdata, NULL);
 
 	mutex_lock(&dev_priv->drm.mode_config.mutex);
 	intel_panel_add_vbt_lfp_fixed_mode(intel_connector);

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

@@ -1431,6 +1431,30 @@ bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
 	return 0;
 }
 
+static int cnp_num_backlight_controllers(struct drm_i915_private *i915)
+{
+	if (INTEL_PCH_TYPE(i915) >= PCH_DG1)
+		return 1;
+
+	if (INTEL_PCH_TYPE(i915) >= PCH_ICP)
+		return 2;
+
+	return 1;
+}
+
+static bool cnp_backlight_controller_is_valid(struct drm_i915_private *i915, int controller)
+{
+	if (controller < 0 || controller >= cnp_num_backlight_controllers(i915))
+		return false;
+
+	if (controller == 1 &&
+	    INTEL_PCH_TYPE(i915) >= PCH_ICP &&
+	    INTEL_PCH_TYPE(i915) < PCH_MTP)
+		return intel_de_read(i915, SOUTH_CHICKEN1) & ICP_SECOND_PPS_IO_SELECT;
+
+	return true;
+}
+
 static int
 cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
 {
@@ -1440,10 +1464,14 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
 
 	/*
 	 * CNP has the BXT implementation of backlight, but with only one
-	 * controller. TODO: ICP has multiple controllers but we only use
-	 * controller 0 for now.
+	 * controller. ICP+ can have two controllers, depending on pin muxing.
 	 */
-	panel->backlight.controller = 0;
+	panel->backlight.controller = connector->panel.vbt.backlight.controller;
+	if (!cnp_backlight_controller_is_valid(i915, panel->backlight.controller)) {
+		drm_dbg_kms(&i915->drm, "Invalid backlight controller %d, assuming 0\n",
+			    panel->backlight.controller);
+		panel->backlight.controller = 0;
+	}
 
 	pwm_ctl = intel_de_read(i915,
 				BXT_BLC_PWM_CTL(panel->backlight.controller));

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

@@ -1033,6 +1033,7 @@ parse_lfp_backlight(struct drm_i915_private *i915,
 	}
 
 	panel->vbt.backlight.type = INTEL_BACKLIGHT_DISPLAY_DDI;
+	panel->vbt.backlight.controller = 0;
 	if (i915->display.vbt.version >= 191) {
 		size_t exp_size;
 
@@ -2467,6 +2468,22 @@ static enum port dvo_port_to_port(struct drm_i915_private *i915,
 					  dvo_port);
 }
 
+static enum port
+dsi_dvo_port_to_port(struct drm_i915_private *i915, u8 dvo_port)
+{
+	switch (dvo_port) {
+	case DVO_PORT_MIPIA:
+		return PORT_A;
+	case DVO_PORT_MIPIC:
+		if (DISPLAY_VER(i915) >= 11)
+			return PORT_B;
+		else
+			return PORT_C;
+	default:
+		return PORT_NONE;
+	}
+}
+
 static int parse_bdb_230_dp_max_link_rate(const int vbt_max_link_rate)
 {
 	switch (vbt_max_link_rate) {
@@ -2577,6 +2594,12 @@ intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata)
 		devdata->child.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR;
 }
 
+static bool
+intel_bios_encoder_supports_dsi(const struct intel_bios_encoder_data *devdata)
+{
+	return devdata->child.device_type & DEVICE_TYPE_MIPI_OUTPUT;
+}
+
 static int _intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *devdata)
 {
 	if (!devdata || devdata->i915->display.vbt.version < 158)
@@ -2627,21 +2650,22 @@ static void print_ddi_port(const struct intel_bios_encoder_data *devdata,
 {
 	struct drm_i915_private *i915 = devdata->i915;
 	const struct child_device_config *child = &devdata->child;
-	bool is_dvi, is_hdmi, is_dp, is_edp, is_crt, supports_typec_usb, supports_tbt;
+	bool is_dvi, is_hdmi, is_dp, is_edp, is_dsi, is_crt, supports_typec_usb, supports_tbt;
 	int dp_boost_level, dp_max_link_rate, hdmi_boost_level, hdmi_level_shift, max_tmds_clock;
 
 	is_dvi = intel_bios_encoder_supports_dvi(devdata);
 	is_dp = intel_bios_encoder_supports_dp(devdata);
 	is_crt = intel_bios_encoder_supports_crt(devdata);
 	is_hdmi = intel_bios_encoder_supports_hdmi(devdata);
 	is_edp = intel_bios_encoder_supports_edp(devdata);
+	is_dsi = intel_bios_encoder_supports_dsi(devdata);
 
 	supports_typec_usb = intel_bios_encoder_supports_typec_usb(devdata);
 	supports_tbt = intel_bios_encoder_supports_tbt(devdata);
 
 	drm_dbg_kms(&i915->drm,
-		    "Port %c VBT info: CRT:%d DVI:%d HDMI:%d DP:%d eDP:%d LSPCON:%d USB-Type-C:%d TBT:%d DSC:%d\n",
-		    port_name(port), is_crt, is_dvi, is_hdmi, is_dp, is_edp,
+		    "Port %c VBT info: CRT:%d DVI:%d HDMI:%d DP:%d eDP:%d DSI:%d LSPCON:%d USB-Type-C:%d TBT:%d DSC:%d\n",
+		    port_name(port), is_crt, is_dvi, is_hdmi, is_dp, is_edp, is_dsi,
 		    HAS_LSPCON(i915) && child->lspcon,
 		    supports_typec_usb, supports_tbt,
 		    devdata->dsc != NULL);
@@ -2694,6 +2718,8 @@ static void parse_ddi_port(struct intel_bios_encoder_data *devdata)
 	enum port port;
 
 	port = dvo_port_to_port(i915, child->dvo_port);
+	if (port == PORT_NONE && DISPLAY_VER(i915) >= 11)
+		port = dsi_dvo_port_to_port(i915, child->dvo_port);
 	if (port == PORT_NONE)
 		return;
 
@@ -3442,19 +3468,16 @@ bool intel_bios_is_dsi_present(struct drm_i915_private *i915,
 
 		dvo_port = child->dvo_port;
 
-		if (dvo_port == DVO_PORT_MIPIA ||
-		    (dvo_port == DVO_PORT_MIPIB && DISPLAY_VER(i915) >= 11) ||
-		    (dvo_port == DVO_PORT_MIPIC && DISPLAY_VER(i915) < 11)) {
-			if (port)
-				*port = dvo_port - DVO_PORT_MIPIA;
-			return true;
-		} else if (dvo_port == DVO_PORT_MIPIB ||
-			   dvo_port == DVO_PORT_MIPIC ||
-			   dvo_port == DVO_PORT_MIPID) {
+		if (dsi_dvo_port_to_port(i915, dvo_port) == PORT_NONE) {
 			drm_dbg_kms(&i915->drm,
 				    "VBT has unsupported DSI port %c\n",
 				    port_name(dvo_port - DVO_PORT_MIPIA));
+			continue;
 		}
+
+		if (port)
+			*port = dsi_dvo_port_to_port(i915, dvo_port);
+		return true;
 	}
 
 	return false;
@@ -3539,7 +3562,7 @@ bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
 		if (!(child->device_type & DEVICE_TYPE_MIPI_OUTPUT))
 			continue;
 
-		if (child->dvo_port - DVO_PORT_MIPIA == encoder->port) {
+		if (dsi_dvo_port_to_port(i915, child->dvo_port) == encoder->port) {
 			if (!devdata->dsc)
 				return false;
 

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

@@ -620,7 +620,13 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous
 	struct intel_fbdev *ifbdev = dev_priv->display.fbdev.fbdev;
 	struct fb_info *info;
 
-	if (!ifbdev || !ifbdev->vma)
+	if (!ifbdev)
+		return;
+
+	if (drm_WARN_ON(&dev_priv->drm, !HAS_DISPLAY(dev_priv)))
+		return;
+
+	if (!ifbdev->vma)
 		goto set_suspend;
 
 	info = ifbdev->helper.info;

drivers/gpu/drm/i915/gt/intel_gt_regs.h

@@ -686,10 +686,7 @@
 #define GEN6_RSTCTL				_MMIO(0x9420)
 
 #define GEN7_MISCCPCTL				_MMIO(0x9424)
-#define   GEN7_DOP_CLOCK_GATE_ENABLE		(1 << 0)
-
-#define GEN8_MISCCPCTL				MCR_REG(0x9424)
-#define   GEN8_DOP_CLOCK_GATE_ENABLE		REG_BIT(0)
+#define   GEN7_DOP_CLOCK_GATE_ENABLE		REG_BIT(0)
 #define   GEN12_DOP_CLOCK_GATE_RENDER_ENABLE	REG_BIT(1)
 #define   GEN8_DOP_CLOCK_GATE_CFCLK_ENABLE	(1 << 2)
 #define   GEN8_DOP_CLOCK_GATE_GUC_ENABLE	(1 << 4)
@@ -979,7 +976,7 @@
 #define   GEN7_WA_FOR_GEN7_L3_CONTROL		0x3C47FF8C
 #define   GEN7_L3AGDIS				(1 << 19)
 
-#define XEHPC_LNCFMISCCFGREG0			_MMIO(0xb01c)
+#define XEHPC_LNCFMISCCFGREG0			MCR_REG(0xb01c)
 #define   XEHPC_HOSTCACHEEN			REG_BIT(1)
 #define   XEHPC_OVRLSCCC			REG_BIT(0)
 
@@ -1042,7 +1039,7 @@
 #define XEHP_L3SCQREG7				MCR_REG(0xb188)
 #define   BLEND_FILL_CACHING_OPT_DIS		REG_BIT(3)
 
-#define XEHPC_L3SCRUB				_MMIO(0xb18c)
+#define XEHPC_L3SCRUB				MCR_REG(0xb18c)
 #define   SCRUB_CL_DWNGRADE_SHARED		REG_BIT(12)
 #define   SCRUB_RATE_PER_BANK_MASK		REG_GENMASK(2, 0)
 #define   SCRUB_RATE_4B_PER_CLK			REG_FIELD_PREP(SCRUB_RATE_PER_BANK_MASK, 0x6)

drivers/gpu/drm/i915/gt/intel_workarounds.c

@@ -30,7 +30,7 @@
  *   creation to have a "primed golden context", i.e. a context image that
  *   already contains the changes needed to all the registers.
  *
- *   Context workarounds should be implemented in the *_ctx_workarounds_init()
+ *   Context workarounds should be implemented in the \*_ctx_workarounds_init()
  *   variants respective to the targeted platforms.
  *
  * - Engine workarounds: the list of these WAs is applied whenever the specific
@@ -55,7 +55,7 @@
  * - GT workarounds: the list of these WAs is applied whenever these registers
  *   revert to their default values: on GPU reset, suspend/resume [1]_, etc.
  *
- *   GT workarounds should be implemented in the *_gt_workarounds_init()
+ *   GT workarounds should be implemented in the \*_gt_workarounds_init()
  *   variants respective to the targeted platforms.
  *
  * - Register whitelist: some workarounds need to be implemented in userspace,
@@ -64,7 +64,7 @@
  *   this is just a special case of a MMIO workaround (as we write the list of
  *   these to/be-whitelisted registers to some special HW registers).
  *
- *   Register whitelisting should be done in the *_whitelist_build() variants
+ *   Register whitelisting should be done in the \*_whitelist_build() variants
  *   respective to the targeted platforms.
  *
  * - Workaround batchbuffers: buffers that get executed automatically by the
@@ -240,6 +240,12 @@ wa_write(struct i915_wa_list *wal, i915_reg_t reg, u32 set)
 	wa_write_clr_set(wal, reg, ~0, set);
 }
 
+static void
+wa_mcr_write(struct i915_wa_list *wal, i915_mcr_reg_t reg, u32 set)
+{
+	wa_mcr_write_clr_set(wal, reg, ~0, set);
+}
+
 static void
 wa_write_or(struct i915_wa_list *wal, i915_reg_t reg, u32 set)
 {
@@ -1676,7 +1682,7 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 	wa_mcr_write_or(wal, XEHP_SQCM, EN_32B_ACCESS);
 
 	/* Wa_14015795083 */
-	wa_mcr_write_clr(wal, GEN8_MISCCPCTL, GEN12_DOP_CLOCK_GATE_RENDER_ENABLE);
+	wa_write_clr(wal, GEN7_MISCCPCTL, GEN12_DOP_CLOCK_GATE_RENDER_ENABLE);
 
 	/* Wa_18018781329 */
 	wa_mcr_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB);
@@ -1695,7 +1701,7 @@ pvc_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 	pvc_init_mcr(gt, wal);
 
 	/* Wa_14015795083 */
-	wa_mcr_write_clr(wal, GEN8_MISCCPCTL, GEN12_DOP_CLOCK_GATE_RENDER_ENABLE);
+	wa_write_clr(wal, GEN7_MISCCPCTL, GEN12_DOP_CLOCK_GATE_RENDER_ENABLE);
 
 	/* Wa_18018781329 */
 	wa_mcr_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB);
@@ -2970,9 +2976,9 @@ add_render_compute_tuning_settings(struct drm_i915_private *i915,
 				   struct i915_wa_list *wal)
 {
 	if (IS_PONTEVECCHIO(i915)) {
-		wa_write(wal, XEHPC_L3SCRUB,
-			 SCRUB_CL_DWNGRADE_SHARED | SCRUB_RATE_4B_PER_CLK);
-		wa_masked_en(wal, XEHPC_LNCFMISCCFGREG0, XEHPC_HOSTCACHEEN);
+		wa_mcr_write(wal, XEHPC_L3SCRUB,
+			     SCRUB_CL_DWNGRADE_SHARED | SCRUB_RATE_4B_PER_CLK);
+		wa_mcr_masked_en(wal, XEHPC_LNCFMISCCFGREG0, XEHPC_HOSTCACHEEN);
 	}
 
 	if (IS_DG2(i915)) {
@@ -3062,7 +3068,7 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 
 	if (IS_PONTEVECCHIO(i915)) {
 		/* Wa_16016694945 */
-		wa_masked_en(wal, XEHPC_LNCFMISCCFGREG0, XEHPC_OVRLSCCC);
+		wa_mcr_masked_en(wal, XEHPC_LNCFMISCCFGREG0, XEHPC_OVRLSCCC);
 	}
 
 	if (IS_XEHPSDV(i915)) {

drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c

@@ -39,9 +39,8 @@ static void guc_prepare_xfer(struct intel_gt *gt)
 
 	if (GRAPHICS_VER(uncore->i915) == 9) {
 		/* DOP Clock Gating Enable for GuC clocks */
-		intel_gt_mcr_multicast_write(gt, GEN8_MISCCPCTL,
-					     GEN8_DOP_CLOCK_GATE_GUC_ENABLE |
-					     intel_gt_mcr_read_any(gt, GEN8_MISCCPCTL));
+		intel_uncore_rmw(uncore, GEN7_MISCCPCTL, 0,
+				 GEN8_DOP_CLOCK_GATE_GUC_ENABLE);
 
 		/* allows for 5us (in 10ns units) before GT can go to RC6 */
 		intel_uncore_write(uncore, GUC_ARAT_C6DIS, 0x1FF);

drivers/gpu/drm/i915/i915_scatterlist.c

@@ -98,8 +98,10 @@ struct i915_refct_sgt *i915_rsgt_from_mm_node(const struct drm_mm_node *node,
 	st = &rsgt->table;
 	/* restricted by sg_alloc_table */
 	if (WARN_ON(overflows_type(DIV_ROUND_UP_ULL(node->size, segment_pages),
-				   unsigned int)))
+				   unsigned int))) {
+		i915_refct_sgt_put(rsgt);
 		return ERR_PTR(-E2BIG);
+	}
 
 	if (sg_alloc_table(st, DIV_ROUND_UP_ULL(node->size, segment_pages),
 			   GFP_KERNEL)) {
@@ -183,8 +185,10 @@ struct i915_refct_sgt *i915_rsgt_from_buddy_resource(struct ttm_resource *res,
 	i915_refct_sgt_init(rsgt, size);
 	st = &rsgt->table;
 	/* restricted by sg_alloc_table */
-	if (WARN_ON(overflows_type(PFN_UP(res->size), unsigned int)))
+	if (WARN_ON(overflows_type(PFN_UP(res->size), unsigned int))) {
+		i915_refct_sgt_put(rsgt);
 		return ERR_PTR(-E2BIG);
+	}
 
 	if (sg_alloc_table(st, PFN_UP(res->size), GFP_KERNEL)) {
 		i915_refct_sgt_put(rsgt);

drivers/gpu/drm/i915/intel_pm.c

@@ -4300,8 +4300,8 @@ static void gen8_set_l3sqc_credits(struct drm_i915_private *dev_priv,
 	u32 val;
 
 	/* WaTempDisableDOPClkGating:bdw */
-	misccpctl = intel_gt_mcr_multicast_rmw(to_gt(dev_priv), GEN8_MISCCPCTL,
-					       GEN8_DOP_CLOCK_GATE_ENABLE, 0);
+	misccpctl = intel_uncore_rmw(&dev_priv->uncore, GEN7_MISCCPCTL,
+				     GEN7_DOP_CLOCK_GATE_ENABLE, 0);
 
 	val = intel_gt_mcr_read_any(to_gt(dev_priv), GEN8_L3SQCREG1);
 	val &= ~L3_PRIO_CREDITS_MASK;
@@ -4315,7 +4315,7 @@ static void gen8_set_l3sqc_credits(struct drm_i915_private *dev_priv,
 	 */
 	intel_gt_mcr_read_any(to_gt(dev_priv), GEN8_L3SQCREG1);
 	udelay(1);
-	intel_gt_mcr_multicast_write(to_gt(dev_priv), GEN8_MISCCPCTL, misccpctl);
+	intel_uncore_write(&dev_priv->uncore, GEN7_MISCCPCTL, misccpctl);
 }
 
 static void icl_init_clock_gating(struct drm_i915_private *dev_priv)
@@ -4466,8 +4466,8 @@ static void skl_init_clock_gating(struct drm_i915_private *dev_priv)
 	gen9_init_clock_gating(dev_priv);
 
 	/* WaDisableDopClockGating:skl */
-	intel_gt_mcr_multicast_rmw(to_gt(dev_priv), GEN8_MISCCPCTL,
-				   GEN8_DOP_CLOCK_GATE_ENABLE, 0);
+	intel_uncore_rmw(&dev_priv->uncore, GEN7_MISCCPCTL,
+			 GEN7_DOP_CLOCK_GATE_ENABLE, 0);
 
 	/* WAC6entrylatency:skl */
 	intel_uncore_rmw(&dev_priv->uncore, FBC_LLC_READ_CTRL, 0, FBC_LLC_FULLY_OPEN);