10 void pci_cap_walk(struct pci_dev *dev, pci_cap_handler_t handler)  in pci_cap_walk()  argument
16 	cap_offset = pci_config_readb(dev->bdf, PCI_CAPABILITY_LIST);  in pci_cap_walk()
18 		cap_id = pci_config_readb(dev->bdf, cap_offset);  in pci_cap_walk()
20 		handler(dev, cap_offset, cap_id);  in pci_cap_walk()
21 		cap_offset = pci_config_readb(dev->bdf, cap_offset + 1);  in pci_cap_walk()
27 void pci_msi_set_enable(struct pci_dev *dev, bool enabled)  in pci_msi_set_enable()  argument
32 	offset = dev->msi_offset;  in pci_msi_set_enable()
33 	msi_control = pci_config_readw(dev->bdf, offset + PCI_MSI_FLAGS);  in pci_msi_set_enable()
40 	pci_config_writew(dev->bdf, offset + PCI_MSI_FLAGS, msi_control);  in pci_msi_set_enable()
43 bool pci_setup_msi(struct pci_dev *dev, uint64_t msi_addr, uint32_t msi_data)  in pci_setup_msi()  argument
49 	assert(dev);  in pci_setup_msi()
51 	if (!dev->msi_offset) {  in pci_setup_msi()
52 		printf("MSI: dev %#x does not support MSI.\n", dev->bdf);  in pci_setup_msi()
56 	addr = dev->bdf;  in pci_setup_msi()
57 	offset = dev->msi_offset;  in pci_setup_msi()
70 	pci_msi_set_enable(dev, true);  in pci_setup_msi()
75 void pci_cmd_set_clr(struct pci_dev *dev, uint16_t set, uint16_t clr)  in pci_cmd_set_clr()  argument
77 	uint16_t val = pci_config_readw(dev->bdf, PCI_COMMAND);  in pci_cmd_set_clr()
84 	pci_config_writew(dev->bdf, PCI_COMMAND, val);  in pci_cmd_set_clr()
87 bool pci_dev_exists(pcidevaddr_t dev)  in pci_dev_exists()  argument
89 	return (pci_config_readw(dev, PCI_VENDOR_ID) != 0xffff &&  in pci_dev_exists()
90 		pci_config_readw(dev, PCI_DEVICE_ID) != 0xffff);  in pci_dev_exists()
96 	pcidevaddr_t dev;  in pci_find_dev()  local
98 	for (dev = 0; dev < PCI_DEVFN_MAX; ++dev) {  in pci_find_dev()
99 		if (pci_config_readw(dev, PCI_VENDOR_ID) == vendor_id &&  in pci_find_dev()
100 		    pci_config_readw(dev, PCI_DEVICE_ID) == device_id)  in pci_find_dev()
101 			return dev;  in pci_find_dev()
113 uint32_t pci_bar_get(struct pci_dev *dev, int bar_num)  in pci_bar_get()  argument
117 	return pci_config_readl(dev->bdf, PCI_BASE_ADDRESS_0 +  in pci_bar_get()
121 static phys_addr_t __pci_bar_get_addr(struct pci_dev *dev, int bar_num)  in __pci_bar_get_addr()  argument
123 	uint32_t bar = pci_bar_get(dev, bar_num);  in __pci_bar_get_addr()
128 	if (pci_bar_is64(dev, bar_num))  in __pci_bar_get_addr()
129 		addr |= (uint64_t)pci_bar_get(dev, bar_num + 1) << 32;  in __pci_bar_get_addr()
131 	phys_addr = pci_translate_addr(dev->bdf, addr);  in __pci_bar_get_addr()
137 phys_addr_t pci_bar_get_addr(struct pci_dev *dev, int bar_num)  in pci_bar_get_addr()  argument
141 	return dev->resource[bar_num];  in pci_bar_get_addr()
144 void pci_bar_set_addr(struct pci_dev *dev, int bar_num, phys_addr_t addr)  in pci_bar_set_addr()  argument
149 	assert(dev->resource[bar_num] != INVALID_PHYS_ADDR);  in pci_bar_set_addr()
152 	if (pci_bar_is64(dev, bar_num))  in pci_bar_set_addr()
157 	pci_config_writel(dev->bdf, off, (uint32_t)addr);  in pci_bar_set_addr()
158 	dev->resource[bar_num] = addr;  in pci_bar_set_addr()
160 	if (pci_bar_is64(dev, bar_num)) {  in pci_bar_set_addr()
161 		pci_config_writel(dev->bdf, off + 4, (uint32_t)(addr >> 32));  in pci_bar_set_addr()
162 		dev->resource[bar_num + 1] = dev->resource[bar_num];  in pci_bar_set_addr()
176 static uint32_t pci_bar_size_helper(struct pci_dev *dev, int bar_num)  in pci_bar_size_helper()  argument
179 	uint16_t bdf = dev->bdf;  in pci_bar_size_helper()
190 phys_addr_t pci_bar_size(struct pci_dev *dev, int bar_num)  in pci_bar_size()  argument
194 	size = pci_bar_size_helper(dev, bar_num);  in pci_bar_size()
198 	bar = pci_bar_get(dev, bar_num);  in pci_bar_size()
201 	if (pci_bar_is64(dev, bar_num)) {  in pci_bar_size()
202 		phys_addr_t size64 = pci_bar_size_helper(dev, bar_num + 1);  in pci_bar_size()
211 bool pci_bar_is_memory(struct pci_dev *dev, int bar_num)  in pci_bar_is_memory()  argument
213 	uint32_t bar = pci_bar_get(dev, bar_num);  in pci_bar_is_memory()
218 bool pci_bar_is_valid(struct pci_dev *dev, int bar_num)  in pci_bar_is_valid()  argument
220 	return dev->resource[bar_num] != INVALID_PHYS_ADDR;  in pci_bar_is_valid()
223 bool pci_bar_is64(struct pci_dev *dev, int bar_num)  in pci_bar_is64()  argument
225 	uint32_t bar = pci_bar_get(dev, bar_num);  in pci_bar_is64()
234 void pci_bar_print(struct pci_dev *dev, int bar_num)  in pci_bar_print()  argument
239 	if (!pci_bar_is_valid(dev, bar_num))  in pci_bar_print()
242 	bar = pci_bar_get(dev, bar_num);  in pci_bar_print()
243 	size = pci_bar_size(dev, bar_num);  in pci_bar_print()
244 	start = pci_bar_get_addr(dev, bar_num);  in pci_bar_print()
247 	if (pci_bar_is64(dev, bar_num)) {  in pci_bar_print()
280 void pci_dev_print_id(struct pci_dev *dev)  in pci_dev_print_id()  argument
282 	pcidevaddr_t bdf = dev->bdf;  in pci_dev_print_id()
289 static void pci_cap_print(struct pci_dev *dev, int cap_offset, int cap_id)  in pci_cap_print()  argument
293 		uint16_t control = pci_config_readw(dev->bdf, cap_offset + PCI_MSI_FLAGS);  in pci_cap_print()
304 void pci_dev_print(struct pci_dev *dev)  in pci_dev_print()  argument
306 	pcidevaddr_t bdf = dev->bdf;  in pci_dev_print()
313 	pci_dev_print_id(dev);  in pci_dev_print()
317 	pci_cap_walk(dev, pci_cap_print);  in pci_dev_print()
323 		if (pci_bar_is_valid(dev, i)) {  in pci_dev_print()
325 			pci_bar_print(dev, i);  in pci_dev_print()
328 		if (pci_bar_is64(dev, i))  in pci_dev_print()
346 void pci_dev_init(struct pci_dev *dev, pcidevaddr_t bdf)  in pci_dev_init()  argument
350 	memset(dev, 0, sizeof(*dev));  in pci_dev_init()
351 	dev->bdf = bdf;  in pci_dev_init()
354 		if (pci_bar_size(dev, i)) {  in pci_dev_init()
355 			dev->resource[i] = __pci_bar_get_addr(dev, i);  in pci_dev_init()
356 			if (pci_bar_is64(dev, i)) {  in pci_dev_init()
358 				dev->resource[i + 1] = dev->resource[i];  in pci_dev_init()
362 			dev->resource[i] = INVALID_PHYS_ADDR;  in pci_dev_init()
367 uint8_t pci_intx_line(struct pci_dev *dev)  in pci_intx_line()  argument
369 	return pci_config_readb(dev->bdf, PCI_INTERRUPT_LINE);  in pci_intx_line()
372 static void pci_cap_setup(struct pci_dev *dev, int cap_offset, int cap_id)  in pci_cap_setup()  argument
376 		dev->msi_offset = cap_offset;  in pci_cap_setup()
381 void pci_enable_defaults(struct pci_dev *dev)  in pci_enable_defaults()  argument
384 	pci_cmd_set_clr(dev, PCI_COMMAND_MASTER, 0);  in pci_enable_defaults()
385 	pci_cap_walk(dev, pci_cap_setup);  in pci_enable_defaults()