ACPI
M: Len Brown <lenb@kernel.org>
+M: Rafael J. Wysocki <rjw@sisk.pl>
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
Q: http://patchwork.kernel.org/project/linux-acpi/list/
EXTENSIBLE FIRMWARE INTERFACE (EFI)
M: Matt Fleming <matt.fleming@intel.com>
L: linux-efi@vger.kernel.org
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git
S: Maintained
F: Documentation/x86/efi-stub.txt
F: arch/ia64/kernel/efi.c
F: drivers/scsi/53c700*
LED SUBSYSTEM
-M: Bryan Wu <bryan.wu@canonical.com>
+M: Bryan Wu <cooloney@gmail.com>
M: Richard Purdie <rpurdie@rpsys.net>
L: linux-leds@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds.git
F: include/net/ip*
F: arch/x86/net/*
+NETWORKING [IPSEC]
+M: Steffen Klassert <steffen.klassert@secunet.com>
+M: Herbert Xu <herbert@gondor.apana.org.au>
+M: "David S. Miller" <davem@davemloft.net>
+L: netdev@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+S: Maintained
+F: net/xfrm/
+F: net/key/
+F: net/ipv4/xfrm*
+F: net/ipv6/xfrm*
+F: include/uapi/linux/xfrm.h
+F: include/net/xfrm.h
+
NETWORKING [LABELED] (NetLabel, CIPSO, Labeled IPsec, SECMARK)
M: Paul Moore <paul@paul-moore.com>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/media/usb/uvc/
+USB WEBCAM GADGET
+M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+L: linux-usb@vger.kernel.org
+S: Maintained
+F: drivers/usb/gadget/*uvc*.c
+F: drivers/usb/gadget/webcam.c
+
USB WIRELESS RNDIS DRIVER (rndis_wlan)
M: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
L: linux-wireless@vger.kernel.org
#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
efi_call_virt(f, a1, a2, a3, a4, a5, a6)
-#define efi_ioremap(addr, size, type) ioremap_cache(addr, size)
+#define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size)
#else /* !CONFIG_X86_32 */
(u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,
- u32 type);
+ u32 type, u64 attribute);
#endif /* CONFIG_X86_32 */
extern int efi_memblock_x86_reserve_range(void);
extern void efi_call_phys_prelog(void);
extern void efi_call_phys_epilog(void);
+ extern void efi_unmap_memmap(void);
+extern void efi_memory_uc(u64 addr, unsigned long size);
#ifndef CONFIG_EFI
/*
#ifdef CONFIG_X86_64
if (max_pfn > max_low_pfn) {
- max_pfn_mapped = init_memory_mapping(1UL<<32,
- max_pfn<<PAGE_SHIFT);
+ int i;
+ unsigned long start, end;
+ unsigned long start_pfn, end_pfn;
+
+ for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn,
+ NULL) {
+
+ end = PFN_PHYS(end_pfn);
+ if (end <= (1UL<<32))
+ continue;
+
+ start = PFN_PHYS(start_pfn);
+ max_pfn_mapped = init_memory_mapping(
+ max((1UL<<32), start), end);
+ }
+
/* can we preseve max_low_pfn ?*/
max_low_pfn = max_pfn;
}
arch_init_ideal_nops();
register_refined_jiffies(CLOCK_TICK_RATE);
+
+ #ifdef CONFIG_EFI
+ /* Once setup is done above, disable efi_enabled on mismatched
+ * firmware/kernel archtectures since there is no support for
+ * runtime services.
+ */
+ if (efi_enabled && IS_ENABLED(CONFIG_X86_64) != efi_64bit) {
+ pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n");
+ efi_unmap_memmap();
+ efi_enabled = 0;
+ }
+ #endif
}
#ifdef CONFIG_X86_32
struct efi_memory_map memmap;
bool efi_64bit;
- static bool efi_native;
static struct efi efi_phys __initdata;
static efi_system_table_t efi_systab __initdata;
+ static inline bool efi_is_native(void)
+ {
+ return IS_ENABLED(CONFIG_X86_64) == efi_64bit;
+ }
+
static int __init setup_noefi(char *arg)
{
efi_enabled = 0;
}
}
- static void __init efi_unmap_memmap(void)
+ void __init efi_unmap_memmap(void)
{
if (memmap.map) {
early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);
{
void *p;
- if (!efi_native)
+ if (!efi_is_native())
return;
for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
return;
}
efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
- efi_native = !efi_64bit;
#else
efi_phys.systab = (efi_system_table_t *)
(boot_params.efi_info.efi_systab |
((__u64)boot_params.efi_info.efi_systab_hi<<32));
- efi_native = efi_64bit;
#endif
if (efi_systab_init(efi_phys.systab)) {
* that doesn't match the kernel 32/64-bit mode.
*/
- if (!efi_native)
+ if (!efi_is_native())
pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
else if (efi_runtime_init()) {
efi_enabled = 0;
return;
}
#ifdef CONFIG_X86_32
- if (efi_native) {
+ if (efi_is_native()) {
x86_platform.get_wallclock = efi_get_time;
x86_platform.set_wallclock = efi_set_rtc_mmss;
}
return NULL;
}
+void efi_memory_uc(u64 addr, unsigned long size)
+{
+ unsigned long page_shift = 1UL << EFI_PAGE_SHIFT;
+ u64 npages;
+
+ npages = round_up(size, page_shift) / page_shift;
+ memrange_efi_to_native(&addr, &npages);
+ set_memory_uc(addr, npages);
+}
+
/*
* This function will switch the EFI runtime services to virtual mode.
* Essentially, look through the EFI memmap and map every region that
efi_memory_desc_t *md, *prev_md = NULL;
efi_status_t status;
unsigned long size;
- u64 end, systab, addr, npages, end_pfn;
+ u64 end, systab, end_pfn;
void *p, *va, *new_memmap = NULL;
int count = 0;
* non-native EFI
*/
- if (!efi_native) {
+ if (!efi_is_native()) {
efi_unmap_memmap();
return;
}
end_pfn = PFN_UP(end);
if (end_pfn <= max_low_pfn_mapped
|| (end_pfn > (1UL << (32 - PAGE_SHIFT))
- && end_pfn <= max_pfn_mapped))
+ && end_pfn <= max_pfn_mapped)) {
va = __va(md->phys_addr);
- else
- va = efi_ioremap(md->phys_addr, size, md->type);
+
+ if (!(md->attribute & EFI_MEMORY_WB))
+ efi_memory_uc((u64)(unsigned long)va, size);
+ } else
+ va = efi_ioremap(md->phys_addr, size,
+ md->type, md->attribute);
md->virt_addr = (u64) (unsigned long) va;
continue;
}
- if (!(md->attribute & EFI_MEMORY_WB)) {
- addr = md->virt_addr;
- npages = md->num_pages;
- memrange_efi_to_native(&addr, &npages);
- set_memory_uc(addr, npages);
- }
-
systab = (u64) (unsigned long) efi_phys.systab;
if (md->phys_addr <= systab && systab < end) {
systab += md->virt_addr - md->phys_addr;
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