X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/09a115a4c07e26b3a978c693c0d6d17abea80479..af8e873ae38b72a56a89485c62bb5ccd22a9f8a7:/lunaix-os/hal/pci.c diff --git a/lunaix-os/hal/pci.c b/lunaix-os/hal/pci.c index c3771d5..3d6accf 100644 --- a/lunaix-os/hal/pci.c +++ b/lunaix-os/hal/pci.c @@ -11,7 +11,7 @@ #include #include #include -#include +#include #include #include @@ -55,7 +55,7 @@ pci_probe_device(int bus, int dev, int funct) pci_reg_t intr = pci_read_cspace(base, 0x3c); pci_reg_t class = pci_read_cspace(base, 0x8); - struct pci_device* device = lxmalloc(sizeof(struct pci_device)); + struct pci_device* device = valloc(sizeof(struct pci_device)); *device = (struct pci_device){ .cspace_base = base, .class_info = class, .device_info = reg1, @@ -126,7 +126,7 @@ pci_print_device() PCI_INTR_IRQ(pos->intr_info), PCI_INTR_PIN(pos->intr_info)); #ifdef PCI_PRINT_BAR_LISTING - pci_reg_t bar; + uint32_t bar; for (size_t i = 1; i <= 6; i++) { size_t size = pci_bar_sizing(pos, &bar, i); if (!bar) @@ -174,20 +174,29 @@ void pci_setup_msi(struct pci_device* device, int vector) { // Dest: APIC#0, Physical Destination, No redirection - uint32_t msi_addr = (__APIC_BASE_PADDR | 0x8); + uint32_t msi_addr = (__APIC_BASE_PADDR); // Edge trigger, Fixed delivery uint32_t msi_data = vector; pci_write_cspace( device->cspace_base, PCI_MSI_ADDR(device->msi_loc), msi_addr); - pci_write_cspace( - device->cspace_base, PCI_MSI_DATA(device->msi_loc), msi_data & 0xffff); pci_reg_t reg1 = pci_read_cspace(device->cspace_base, device->msi_loc); + pci_reg_t msg_ctl = reg1 >> 16; + + int offset = !!(msg_ctl & MSI_CAP_64BIT) * 4; + pci_write_cspace(device->cspace_base, + PCI_MSI_DATA(device->msi_loc, offset), + msi_data & 0xffff); + + if ((msg_ctl & MSI_CAP_MASK)) { + pci_write_cspace( + device->cspace_base, PCI_MSI_MASK(device->msi_loc, offset), 0); + } // manipulate the MSI_CTRL to allow device using MSI to request service. - reg1 = ((((reg1 >> 16) & ~0x70) | 0x1) << 16) | (reg1 & 0xffff); + reg1 = (reg1 & 0xff8fffff) | 0x10000; pci_write_cspace(device->cspace_base, device->msi_loc, reg1); }