add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/arch/x86/pci/common.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  *	Low-Level PCI Support for PC
3
4
  *
..
..
@@ -18,6 +19,7 @@
18
19
 #include <asm/smp.h>
19
20
 #include <asm/pci_x86.h>
20
21
 #include <asm/setup.h>
22
+#include <asm/irqdomain.h>
21
23
 
22
24
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
23
25
 				PCI_PROBE_MMCONF;
..
..
@@ -134,7 +136,7 @@
134
136
 		* resource so the kernel doesn't attempt to assign
135
137
 		* it later on in pci_assign_unassigned_resources
136
138
 		*/
137
-		for (bar = 0; bar <= PCI_STD_RESOURCE_END; bar++) {
139
+		for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
138
140
 			bar_r = &dev->resource[bar];
139
141
 			if (bar_r->start == 0 && bar_r->end != 0) {
140
142
 				bar_r->flags = 0;
..
..
@@ -624,43 +626,6 @@
624
626
 	return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0;
625
627
 }
626
628
 
627
-#if defined(CONFIG_X86_DEV_DMA_OPS) && defined(CONFIG_PCI_DOMAINS)
628
-static LIST_HEAD(dma_domain_list);
629
-static DEFINE_SPINLOCK(dma_domain_list_lock);
630
-
631
-void add_dma_domain(struct dma_domain *domain)
632
-{
633
-	spin_lock(&dma_domain_list_lock);
634
-	list_add(&domain->node, &dma_domain_list);
635
-	spin_unlock(&dma_domain_list_lock);
636
-}
637
-EXPORT_SYMBOL_GPL(add_dma_domain);
638
-
639
-void del_dma_domain(struct dma_domain *domain)
640
-{
641
-	spin_lock(&dma_domain_list_lock);
642
-	list_del(&domain->node);
643
-	spin_unlock(&dma_domain_list_lock);
644
-}
645
-EXPORT_SYMBOL_GPL(del_dma_domain);
646
-
647
-static void set_dma_domain_ops(struct pci_dev *pdev)
648
-{
649
-	struct dma_domain *domain;
650
-
651
-	spin_lock(&dma_domain_list_lock);
652
-	list_for_each_entry(domain, &dma_domain_list, node) {
653
-		if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
654
-			pdev->dev.dma_ops = domain->dma_ops;
655
-			break;
656
-		}
657
-	}
658
-	spin_unlock(&dma_domain_list_lock);
659
-}
660
-#else
661
-static void set_dma_domain_ops(struct pci_dev *pdev) {}
662
-#endif
663
-
664
629
 static void set_dev_domain_options(struct pci_dev *pdev)
665
630
 {
666
631
 	if (is_vmd(pdev->bus))
..
..
@@ -669,8 +634,9 @@
669
634
 
670
635
 int pcibios_add_device(struct pci_dev *dev)
671
636
 {
672
-	struct setup_data *data;
673
637
 	struct pci_setup_rom *rom;
638
+	struct irq_domain *msidom;
639
+	struct setup_data *data;
674
640
 	u64 pa_data;
675
641
 
676
642
 	pa_data = boot_params.hdr.setup_data;
..
..
@@ -696,8 +662,21 @@
696
662
 		pa_data = data->next;
697
663
 		memunmap(data);
698
664
 	}
699
-	set_dma_domain_ops(dev);
700
665
 	set_dev_domain_options(dev);
666
+
667
+	/*
668
+	 * Setup the initial MSI domain of the device. If the underlying
669
+	 * bus has a PCI/MSI irqdomain associated use the bus domain,
670
+	 * otherwise set the default domain. This ensures that special irq
671
+	 * domains e.g. VMD are preserved. The default ensures initial
672
+	 * operation if irq remapping is not active. If irq remapping is
673
+	 * active it will overwrite the domain pointer when the device is
674
+	 * associated to a remapping domain.
675
+	 */
676
+	msidom = dev_get_msi_domain(&dev->bus->dev);
677
+	if (!msidom)
678
+		msidom = x86_pci_msi_default_domain;
679
+	dev_set_msi_domain(&dev->dev, msidom);
701
680
 	return 0;
702
681
 }
703
682
 
..
..
@@ -735,3 +714,13 @@
735
714
 	else
736
715
 		return 0;
737
716
 }
717
+
718
+#if IS_ENABLED(CONFIG_VMD)
719
+struct pci_dev *pci_real_dma_dev(struct pci_dev *dev)
720
+{
721
+	if (is_vmd(dev->bus))
722
+		return to_pci_sysdata(dev->bus)->vmd_dev;
723
+
724
+	return dev;
725
+}
726
+#endif