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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-06 10:54:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-06 10:54:07 -0700
commitb62e419707ce082845c34161fe684d0c743b7953 (patch)
tree9ecad0aef86a55ca33a0a355c627ff2b4acc4756 /drivers/of
parent40ddad19131999161c39564815b8df2faff0fc7c (diff)
parent6c86a3029ce3b44597526909f2e39a77a497f640 (diff)
downloadlinux-b62e419707ce082845c34161fe684d0c743b7953.tar.gz
Merge tag 'mips_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS upates from Thomas Bogendoerfer:

 - improvements for Loongson64

 - extended ingenic support

 - removal of not maintained paravirt system type

 - cleanups and fixes

* tag 'mips_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (81 commits)
  MIPS: SGI-IP27: always enable NUMA in Kconfig
  MAINTAINERS: Update KVM/MIPS maintainers
  MIPS: Update default config file for Loongson-3
  MIPS: KVM: Add kvm guest support for Loongson-3
  dt-bindings: mips: Document Loongson kvm guest board
  MIPS: handle Loongson-specific GSExc exception
  MIPS: add definitions for Loongson-specific CP0.Diag1 register
  MIPS: only register FTLBPar exception handler for supported models
  MIPS: ingenic: Hardcode mem size for qi,lb60 board
  MIPS: DTS: ingenic/qi,lb60: Add model and memory node
  MIPS: ingenic: Use fw_passed_dtb even if CONFIG_BUILTIN_DTB
  MIPS: head.S: Init fw_passed_dtb to builtin DTB
  of: address: Fix parser address/size cells initialization
  of_address: Guard of_bus_pci_get_flags with CONFIG_PCI
  MIPS: DTS: Fix number of msi vectors for Loongson64G
  MIPS: Loongson64: Add ISA node for LS7A PCH
  MIPS: Loongson64: DTS: Fix ISA and PCI I/O ranges for RS780E PCH
  MIPS: Loongson64: Enlarge IO_SPACE_LIMIT
  MIPS: Loongson64: Process ISA Node in DeviceTree
  of_address: Add bus type match for pci ranges parser
  ...
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/address.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 381dc9be7b22..590493e04b01 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -49,6 +49,7 @@ struct of_bus {
 	u64		(*map)(__be32 *addr, const __be32 *range,
 				int na, int ns, int pna);
 	int		(*translate)(__be32 *addr, u64 offset, int na);
+	bool	has_flags;
 	unsigned int	(*get_flags)(const __be32 *addr);
 };
 
@@ -100,6 +101,7 @@ static unsigned int of_bus_default_get_flags(const __be32 *addr)
 	return IORESOURCE_MEM;
 }
 
+#ifdef CONFIG_PCI
 static unsigned int of_bus_pci_get_flags(const __be32 *addr)
 {
 	unsigned int flags = 0;
@@ -122,7 +124,6 @@ static unsigned int of_bus_pci_get_flags(const __be32 *addr)
 	return flags;
 }
 
-#ifdef CONFIG_PCI
 /*
  * PCI bus specific translator
  */
@@ -364,6 +365,7 @@ static struct of_bus of_busses[] = {
 		.count_cells = of_bus_pci_count_cells,
 		.map = of_bus_pci_map,
 		.translate = of_bus_pci_translate,
+		.has_flags = true,
 		.get_flags = of_bus_pci_get_flags,
 	},
 #endif /* CONFIG_PCI */
@@ -375,6 +377,7 @@ static struct of_bus of_busses[] = {
 		.count_cells = of_bus_isa_count_cells,
 		.map = of_bus_isa_map,
 		.translate = of_bus_isa_translate,
+		.has_flags = true,
 		.get_flags = of_bus_isa_get_flags,
 	},
 	/* Default */
@@ -701,6 +704,7 @@ static int parser_init(struct of_pci_range_parser *parser,
 	parser->na = of_bus_n_addr_cells(node);
 	parser->ns = of_bus_n_size_cells(node);
 	parser->dma = !strcmp(name, "dma-ranges");
+	parser->bus = of_match_bus(node);
 
 	parser->range = of_get_property(node, name, &rlen);
 	if (parser->range == NULL)
@@ -732,6 +736,7 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
 	int na = parser->na;
 	int ns = parser->ns;
 	int np = parser->pna + na + ns;
+	int busflag_na = 0;
 
 	if (!range)
 		return NULL;
@@ -739,12 +744,13 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
 	if (!parser->range || parser->range + np > parser->end)
 		return NULL;
 
-	if (parser->na == 3)
-		range->flags = of_bus_pci_get_flags(parser->range);
-	else
-		range->flags = 0;
+	range->flags = parser->bus->get_flags(parser->range);
+
+	/* A extra cell for resource flags */
+	if (parser->bus->has_flags)
+		busflag_na = 1;
 
-	range->pci_addr = of_read_number(parser->range, na);
+	range->bus_addr = of_read_number(parser->range + busflag_na, na - busflag_na);
 
 	if (parser->dma)
 		range->cpu_addr = of_translate_dma_address(parser->node,
@@ -759,11 +765,10 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
 	/* Now consume following elements while they are contiguous */
 	while (parser->range + np <= parser->end) {
 		u32 flags = 0;
-		u64 pci_addr, cpu_addr, size;
+		u64 bus_addr, cpu_addr, size;
 
-		if (parser->na == 3)
-			flags = of_bus_pci_get_flags(parser->range);
-		pci_addr = of_read_number(parser->range, na);
+		flags = parser->bus->get_flags(parser->range);
+		bus_addr = of_read_number(parser->range + busflag_na, na - busflag_na);
 		if (parser->dma)
 			cpu_addr = of_translate_dma_address(parser->node,
 					parser->range + na);
@@ -774,7 +779,7 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
 
 		if (flags != range->flags)
 			break;
-		if (pci_addr != range->pci_addr + range->size ||
+		if (bus_addr != range->bus_addr + range->size ||
 		    cpu_addr != range->cpu_addr + range->size)
 			break;