Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- Makefile | 2 +- src/pci_region.c | 77 --------------------- src/pciinit.c | 197 ------------------------------------------------------ src/util.h | 29 -------- 4 files changed, 1 insertions(+), 304 deletions(-) delete mode 100644 src/pci_region.c
diff --git a/Makefile b/Makefile index a96c89d..7234b26 100644 --- a/Makefile +++ b/Makefile @@ -20,7 +20,7 @@ SRC16=$(SRCBOTH) system.c disk.c font.c SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \ acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \ lzmadecode.c bootsplash.c jpeg.c usb-hub.c paravirt.c \ - pci_region.c biostables.c xen.c + biostables.c xen.c SRC32SEG=util.c output.c pci.c pcibios.c apm.c stacks.c
cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \ diff --git a/src/pci_region.c b/src/pci_region.c deleted file mode 100644 index 1d9de71..0000000 --- a/src/pci_region.c +++ /dev/null @@ -1,77 +0,0 @@ -// helper functions to manage pci io/memory/prefetch memory region -// -// Copyright (C) 2009 Isaku Yamahata <yamahata at valinux co jp> -// -// This file may be distributed under the terms of the GNU LGPLv3 license. -// -// - -#include "util.h" - -#define PCI_REGION_DISABLED (-1) - -void pci_region_init(struct pci_region *r, u32 first, u32 last) -{ - r->first = first; - r->last = last; - - r->cur_first = r->first; -} - -// PCI_REGION_DISABLED represents that the region is in special state. -// its value is chosen such that cur_first can't be PCI_REGION_DISABLED -// normally. -// NOTE: the area right below 4G is used for LAPIC, so such area can't -// be used for PCI memory. -u32 pci_region_disable(struct pci_region *r) -{ - return r->cur_first = PCI_REGION_DISABLED; -} - -static int pci_region_disabled(const struct pci_region *r) -{ - return r->cur_first == PCI_REGION_DISABLED; -} - -static u32 pci_region_alloc_align(struct pci_region *r, u32 size, u32 align) -{ - if (pci_region_disabled(r)) { - return 0; - } - - u32 s = ALIGN(r->cur_first, align); - if (s > r->last || s < r->cur_first) { - return 0; - } - u32 e = s + size; - if (e < s || e - 1 > r->last) { - return 0; - } - r->cur_first = e; - return s; -} - -u32 pci_region_alloc(struct pci_region *r, u32 size) -{ - return pci_region_alloc_align(r, size, size); -} - -u32 pci_region_align(struct pci_region *r, u32 align) -{ - return pci_region_alloc_align(r, 0, align); -} - -void pci_region_revert(struct pci_region *r, u32 addr) -{ - r->cur_first = addr; -} - -u32 pci_region_addr(const struct pci_region *r) -{ - return r->cur_first; -} - -u32 pci_region_size(const struct pci_region *r) -{ - return r->last - r->first + 1; -} diff --git a/src/pciinit.c b/src/pciinit.c index 5a1ae99..e1f9838 100644 --- a/src/pciinit.c +++ b/src/pciinit.c @@ -18,10 +18,6 @@ #define PCI_BRIDGE_IO_MIN 0x100 #define PCI_BRIDGE_MEM_MIN 0x100000
-static struct pci_region pci_bios_io_region; -static struct pci_region pci_bios_mem_region; -static struct pci_region pci_bios_prefmem_region; - enum pci_region_type { PCI_REGION_TYPE_IO, PCI_REGION_TYPE_MEM, @@ -113,88 +109,6 @@ static void pci_set_io_region_addr(u16 bdf, int region_num, u32 addr) ofs = pci_bar(bdf, region_num);
pci_config_writel(bdf, ofs, addr); - dprintf(1, "region %d: 0x%08x\n", region_num, addr); -} - -/* - * return value - * 0: 32bit BAR - * non 0: 64bit BAR - */ -static int pci_bios_allocate_region(u16 bdf, int region_num) -{ - return 0; - - struct pci_region *r; - u32 ofs = pci_bar(bdf, region_num); - - u32 old = pci_config_readl(bdf, ofs); - u32 mask; - if (region_num == PCI_ROM_SLOT) { - mask = PCI_ROM_ADDRESS_MASK; - pci_config_writel(bdf, ofs, mask); - } else { - if (old & PCI_BASE_ADDRESS_SPACE_IO) - mask = PCI_BASE_ADDRESS_IO_MASK; - else - mask = PCI_BASE_ADDRESS_MEM_MASK; - pci_config_writel(bdf, ofs, ~0); - } - u32 val = pci_config_readl(bdf, ofs); - pci_config_writel(bdf, ofs, old); - - u32 size = (~(val & mask)) + 1; - if (val != 0) { - const char *type; - const char *msg; - if (val & PCI_BASE_ADDRESS_SPACE_IO) { - r = &pci_bios_io_region; - type = "io"; - msg = ""; - } else if ((val & PCI_BASE_ADDRESS_MEM_PREFETCH) && - /* keep behaviour on bus = 0 */ - pci_bdf_to_bus(bdf) != 0 && - /* If pci_bios_prefmem_addr == 0, keep old behaviour */ - pci_region_addr(&pci_bios_prefmem_region) != 0) { - r = &pci_bios_prefmem_region; - type = "prefmem"; - msg = "decrease BUILD_PCIMEM_SIZE and recompile. size %x"; - } else { - r = &pci_bios_mem_region; - type = "mem"; - msg = "increase BUILD_PCIMEM_SIZE and recompile."; - } - u32 addr = pci_region_alloc(r, size); - if (addr > 0) { - pci_set_io_region_addr(bdf, region_num, addr); - } else { - size = 0; - dprintf(1, - "%s region of (bdf 0x%x bar %d) can't be mapped. " - "%s size %x\n", - type, bdf, region_num, msg, pci_region_size(r)); - } - } - - int is_64bit = !(val & PCI_BASE_ADDRESS_SPACE_IO) && - (val & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == PCI_BASE_ADDRESS_MEM_TYPE_64; - if (is_64bit && size > 0) { - pci_config_writel(bdf, ofs + 4, 0); - } - return is_64bit; -} - -static void pci_bios_allocate_regions(struct pci_device *pci, void *arg) -{ - return; - - int i; - for (i = 0; i < PCI_NUM_REGIONS; i++) { - int is_64bit = pci_bios_allocate_region(pci->bdf, i); - if (is_64bit){ - i++; - } - } }
/* return the global irq number corresponding to a given device irq @@ -243,93 +157,6 @@ static const struct pci_device_id pci_isa_bridge_tbl[] = { #define PCI_PREF_MEMORY_ALIGN (1UL << 20) #define PCI_PREF_MEMORY_SHIFT 16
-#if 0 -static void pci_bios_init_device_bridge(struct pci_device *pci, void *arg) -{ - u16 bdf = pci->bdf; - pci_bios_allocate_region(bdf, 0); - pci_bios_allocate_region(bdf, 1); - pci_bios_allocate_region(bdf, PCI_ROM_SLOT); - - u32 io_old = pci_region_addr(&pci_bios_io_region); - u32 mem_old = pci_region_addr(&pci_bios_mem_region); - u32 prefmem_old = pci_region_addr(&pci_bios_prefmem_region); - - /* IO BASE is assumed to be 16 bit */ - if (pci_region_align(&pci_bios_io_region, PCI_IO_ALIGN) == 0) { - pci_region_disable(&pci_bios_io_region); - } - if (pci_region_align(&pci_bios_mem_region, PCI_MEMORY_ALIGN) == 0) { - pci_region_disable(&pci_bios_mem_region); - } - if (pci_region_align(&pci_bios_prefmem_region, - PCI_PREF_MEMORY_ALIGN) == 0) { - pci_region_disable(&pci_bios_prefmem_region); - } - - u32 io_base = pci_region_addr(&pci_bios_io_region); - u32 mem_base = pci_region_addr(&pci_bios_mem_region); - u32 prefmem_base = pci_region_addr(&pci_bios_prefmem_region); - - u8 secbus = pci_config_readb(bdf, PCI_SECONDARY_BUS); - if (secbus > 0) { - pci_bios_init_device_in_bus(secbus); - } - - u32 io_end = pci_region_align(&pci_bios_io_region, PCI_IO_ALIGN); - if (io_end == 0) { - pci_region_revert(&pci_bios_io_region, io_old); - io_base = 0xffff; - io_end = 1; - } - pci_config_writeb(bdf, PCI_IO_BASE, io_base >> PCI_IO_SHIFT); - pci_config_writew(bdf, PCI_IO_BASE_UPPER16, 0); - pci_config_writeb(bdf, PCI_IO_LIMIT, (io_end - 1) >> PCI_IO_SHIFT); - pci_config_writew(bdf, PCI_IO_LIMIT_UPPER16, 0); - - u32 mem_end = pci_region_align(&pci_bios_mem_region, PCI_MEMORY_ALIGN); - if (mem_end == 0) { - pci_region_revert(&pci_bios_mem_region, mem_old); - mem_base = 0xffffffff; - mem_end = 1; - } - pci_config_writew(bdf, PCI_MEMORY_BASE, mem_base >> PCI_MEMORY_SHIFT); - pci_config_writew(bdf, PCI_MEMORY_LIMIT, (mem_end -1) >> PCI_MEMORY_SHIFT); - - u32 prefmem_end = pci_region_align(&pci_bios_prefmem_region, - PCI_PREF_MEMORY_ALIGN); - if (prefmem_end == 0) { - pci_region_revert(&pci_bios_prefmem_region, prefmem_old); - prefmem_base = 0xffffffff; - prefmem_end = 1; - } - pci_config_writew(bdf, PCI_PREF_MEMORY_BASE, - prefmem_base >> PCI_PREF_MEMORY_SHIFT); - pci_config_writew(bdf, PCI_PREF_MEMORY_LIMIT, - (prefmem_end - 1) >> PCI_PREF_MEMORY_SHIFT); - pci_config_writel(bdf, PCI_PREF_BASE_UPPER32, 0); - pci_config_writel(bdf, PCI_PREF_LIMIT_UPPER32, 0); - - dprintf(1, "PCI: br io = [0x%x, 0x%x)\n", io_base, io_end); - dprintf(1, "PCI: br mem = [0x%x, 0x%x)\n", mem_base, mem_end); - dprintf(1, "PCI: br pref = [0x%x, 0x%x)\n", prefmem_base, prefmem_end); - - u16 cmd = pci_config_readw(bdf, PCI_COMMAND); - cmd &= ~PCI_COMMAND_IO; - if (io_end > io_base) { - cmd |= PCI_COMMAND_IO; - } - cmd &= ~PCI_COMMAND_MEMORY; - if (mem_end > mem_base || prefmem_end > prefmem_base) { - cmd |= PCI_COMMAND_MEMORY; - } - cmd |= PCI_COMMAND_MASTER; - pci_config_writew(bdf, PCI_COMMAND, cmd); - - pci_config_maskw(bdf, PCI_BRIDGE_CONTROL, 0, PCI_BRIDGE_CTL_SERR); -} -#endif - static void storage_ide_init(struct pci_device *pci, void *arg) { u16 bdf = pci->bdf; @@ -346,7 +173,6 @@ static void piix_ide_init(struct pci_device *pci, void *arg) u16 bdf = pci->bdf; pci_config_writew(bdf, 0x40, 0x8000); // enable IDE0 pci_config_writew(bdf, 0x42, 0x8000); // enable IDE1 - pci_bios_allocate_regions(pci, NULL); }
static void pic_ibm_init(struct pci_device *pci, void *arg) @@ -380,15 +206,6 @@ static const struct pci_device_id pci_class_tbl[] = { PCI_DEVICE_CLASS(PCI_VENDOR_ID_APPLE, 0x0017, 0xff00, apple_macio_init), PCI_DEVICE_CLASS(PCI_VENDOR_ID_APPLE, 0x0022, 0xff00, apple_macio_init),
-#if 0 - /* PCI bridge */ - PCI_DEVICE_CLASS(PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_BRIDGE_PCI, - pci_bios_init_device_bridge), -#endif - - /* default */ - PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID, pci_bios_allocate_regions), - PCI_DEVICE_END, };
@@ -770,12 +587,6 @@ pci_setup(void) u32 start = 0xe0000000; u32 end = BUILD_IOAPIC_ADDR;
- pci_region_init(&pci_bios_io_region, 0xc000, 64 * 1024 - 1); - pci_region_init(&pci_bios_mem_region, - BUILD_PCIMEM_START, BUILD_PCIMEM_END - 1); - pci_region_init(&pci_bios_prefmem_region, - BUILD_PCIPREFMEM_START, BUILD_PCIPREFMEM_END - 1); - dprintf(1, "=== PCI bus & bridge init ===\n"); pci_bios_init_bus();
@@ -794,14 +605,6 @@ pci_setup(void) pci_bios_init_bus_bases(&busses[0]); pci_bios_map_device_in_bus(0 /* host bus */);
-#if 0 - dprintf(1, "=== PCI old allocation pass ===\n"); - struct pci_device *pci; - foreachpci(pci) { - pci_init_device(pci_isa_bridge_tbl, pci, NULL); - } -#endif - pci_bios_init_device_in_bus(0 /* host bus */);
free(busses); diff --git a/src/util.h b/src/util.h index 7034d43..d856d50 100644 --- a/src/util.h +++ b/src/util.h @@ -344,35 +344,6 @@ void make_bios_writable(void); void make_bios_readonly(void); void qemu_prep_reset(void);
-// pci_region.c -// region allocator. pci region allocates the requested region -// sequentially with overflow check. -struct pci_region { - // The region is [first, last]. - u32 first; - u32 last; - - // The next allocation starts from here. - // i.e. [start, cur_first) is allocated. - // Right after initialization cur_first == first. - u32 cur_first; -}; -// initialize the pci_region of [first, last] -// last must not be 0xffffffff -void pci_region_init(struct pci_region *r, u32 first, u32 last); -// allocate the region of size -u32 pci_region_alloc(struct pci_region *r, u32 size); -// make the next allocation aligned to align -u32 pci_region_align(struct pci_region *r, u32 align); -// revert the allocation to addr. -void pci_region_revert(struct pci_region *r, u32 addr); -// make the allocation fail. -u32 pci_region_disable(struct pci_region *r); -// returns the current allocation point. -u32 pci_region_addr(const struct pci_region *r); -// returns the region size. -u32 pci_region_size(const struct pci_region *r); - // pciinit.c extern const u8 pci_irqs[4]; void pci_setup(void);