diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index 392ea7437a09cc681ae890a28d31f8de7824f160..ed75f2f6afcb11aa9942055d85abfaf2fd96c967 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -2185,6 +2185,7 @@ CONFIG_CRC_T10DIF=y
 CONFIG_CRC_ITU_T=y
 CONFIG_CRC7=m
 CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=0
 CONFIG_PRINTK_TIME=y
 CONFIG_PRINTK_CALLER=y
 CONFIG_BOOT_PRINTK_DELAY=y
diff --git a/arch/loongarch/kernel/cacheinfo.c b/arch/loongarch/kernel/cacheinfo.c
index c7988f757281cbc22116286aad2921acd5b64c83..8e231b0d2cd6c9bce2aac348f9d0d2dea471c347 100644
--- a/arch/loongarch/kernel/cacheinfo.c
+++ b/arch/loongarch/kernel/cacheinfo.c
@@ -51,6 +51,12 @@ static void cache_cpumap_setup(unsigned int cpu)
 				continue;
 
 			sib_leaf = sib_cpu_ci->info_list + index;
+			/* SMT cores share all caches */
+			if (cpus_are_siblings(i, cpu)) {
+				cpumask_set_cpu(cpu, &sib_leaf->shared_cpu_map);
+				cpumask_set_cpu(i, &this_leaf->shared_cpu_map);
+			}
+			/* Node's cores share shared caches */
 			if (cache_leaves_are_shared(this_leaf, sib_leaf)) {
 				cpumask_set_cpu(cpu, &sib_leaf->shared_cpu_map);
 				cpumask_set_cpu(i, &this_leaf->shared_cpu_map);
diff --git a/arch/loongarch/mm/cache.c b/arch/loongarch/mm/cache.c
index 6be04d36ca0769658a2b52d25af50dd6ad7e07e0..f6cda2b5d7382754026a4eefa3591fc3ced57f84 100644
--- a/arch/loongarch/mm/cache.c
+++ b/arch/loongarch/mm/cache.c
@@ -63,6 +63,28 @@ static void flush_cache_leaf(unsigned int leaf)
 	} while (--nr_nodes > 0);
 }
 
+static void flush_cache_last_level(unsigned int leaf)
+{
+	u64 addr;
+	int i, j, nr_nodes, way_size;
+	struct cache_desc *cdesc = current_cpu_data.cache_leaves + leaf;
+
+	nr_nodes = loongson_sysconf.nr_nodes;
+
+	addr = CSR_DMW1_BASE;
+	iocsr_write8(0x1, 0x280);
+	way_size = cdesc->sets * cdesc->linesz;
+	do {
+		for (i = 0; i < (cdesc->ways * 3); i++) {
+			for (j = 0; j < (cdesc->sets); j++) {
+				READ_ONCE(*(u32 *)addr);
+				addr += cdesc->linesz;
+			}
+		}
+		addr += 0x100000000000;
+	} while (--nr_nodes > 0);
+}
+
 asmlinkage __visible void __flush_cache_all(void)
 {
 	int leaf;
@@ -71,7 +93,7 @@ asmlinkage __visible void __flush_cache_all(void)
 
 	leaf = cache_present - 1;
 	if (cache_inclusive(cdesc + leaf)) {
-		flush_cache_leaf(leaf);
+		flush_cache_last_level(leaf);
 		return;
 	}
 
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index fe5e30662017deb47233ce11612dc1c1b4b0009b..736c291876355cb43f9ee632c1a4998b43ee8985 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4645,6 +4645,9 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
 	if (data->suspend_count++)
 		return 0;
 
+#ifdef CONFIG_LOONGARCH
+	mdelay(1);
+#endif
 	spin_lock_irq(&data->txlock);
 	if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
 		set_bit(BTUSB_SUSPENDING, &data->flags);
diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c
index 4e675c7c199fa1f41b339144651250ce33759e67..b460ea4f5fc8f39b05c3c077a372a19fcd608fec 100644
--- a/drivers/net/ethernet/intel/ice/ice_lag.c
+++ b/drivers/net/ethernet/intel/ice/ice_lag.c
@@ -1806,9 +1806,7 @@ static int ice_create_lag_recipe(struct ice_hw *hw, u16 *rid,
 	new_rcp->content.act_ctrl_fwd_priority = prio;
 	new_rcp->content.rid = *rid | ICE_AQ_RECIPE_ID_IS_ROOT;
 	new_rcp->recipe_indx = *rid;
-	bitmap_zero((unsigned long *)new_rcp->recipe_bitmap,
-		    ICE_MAX_NUM_RECIPES);
-	set_bit(*rid, (unsigned long *)new_rcp->recipe_bitmap);
+	put_unaligned_le64(BIT_ULL(*rid), new_rcp->recipe_bitmap);
 
 	err = ice_aq_add_recipe(hw, new_rcp, 1, NULL);
 	if (err)
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 19f730a68fa21c4f7ebe00af47de1d7e49a0a9d5..36685b2923bdc0c0697342d33dc294cbdfce3c74 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -5071,10 +5071,8 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm,
 		}
 
 		/* fill recipe dependencies */
-		bitmap_zero((unsigned long *)buf[recps].recipe_bitmap,
-			    ICE_MAX_NUM_RECIPES);
-		set_bit(buf[recps].recipe_indx,
-			(unsigned long *)buf[recps].recipe_bitmap);
+		put_unaligned_le64(BIT_ULL(buf[recps].recipe_indx),
+				   buf[recps].recipe_bitmap);
 		content->act_ctrl_fwd_priority = rm->priority;
 
 		if (rm->need_pass_l2)
diff --git a/drivers/rtc/rtc-loongson.c b/drivers/rtc/rtc-loongson.c
index e8ffc1ab90b02fbf6a383efaa79ea57cee4ae67b..90e9d97a86b48720a77178a2bc463f004a272321 100644
--- a/drivers/rtc/rtc-loongson.c
+++ b/drivers/rtc/rtc-loongson.c
@@ -114,6 +114,13 @@ static irqreturn_t loongson_rtc_isr(int irq, void *id)
 	struct loongson_rtc_priv *priv = (struct loongson_rtc_priv *)id;
 
 	rtc_update_irq(priv->rtcdev, 1, RTC_AF | RTC_IRQF);
+
+	/*
+	 * The TOY_MATCH0_REG should be cleared 0 here,
+	 * otherwise the interrupt cannot be cleared.
+	 */
+	regmap_write(priv->regmap, TOY_MATCH0_REG, 0);
+
 	return IRQ_HANDLED;
 }
 
@@ -131,11 +138,7 @@ static u32 loongson_rtc_handler(void *id)
 	writel(RTC_STS, priv->pm_base + PM1_STS_REG);
 	spin_unlock(&priv->lock);
 
-	/*
-	 * The TOY_MATCH0_REG should be cleared 0 here,
-	 * otherwise the interrupt cannot be cleared.
-	 */
-	return regmap_write(priv->regmap, TOY_MATCH0_REG, 0);
+	return ACPI_INTERRUPT_HANDLED;
 }
 
 static int loongson_rtc_set_enabled(struct device *dev)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 77ed507fc6e169011f78c9808c2657680db1d2de..986c38a501663836b8cf9f1137a6dec427aa4065 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2813,9 +2813,9 @@ static const struct pci_device_id azx_ids[] = {
 		AZX_DCAPS_NO_MSI | AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_NO_64BIT },
 	/* Loongson HDAudio*/
 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDA),
-	  .driver_data = AZX_DRIVER_LOONGSON },
+	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL},
 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
-	  .driver_data = AZX_DRIVER_LOONGSON },
+	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL},
 	/* Hygon HDAudio */
 	{ PCI_VDEVICE(HYGON, PCI_DEVICE_ID_HYGON_18H_M05H_HDA),
 	  .driver_data = AZX_DRIVER_HYGON | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_NO_MSI },