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Merge branch 'x86/efi/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/linux into x86/efi

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Pull misc EFI fixlets from Matt Fleming.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2012-09-19 17:04:17 +02:00
commit 984ff8a4d2
6 changed files with 33 additions and 15 deletions
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3
arch/x86/boot/compressed/Makefile
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@ -28,6 +28,9 @@ VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
$(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \
$(obj)/piggy.o
$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
$(obj)/efi_stub_$(BITS).o: KBUILD_CLFAGS += -fshort-wchar -mno-red-zone
ifeq ($(CONFIG_EFI_STUB), y)
VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
endif

34
arch/x86/boot/compressed/eboot.c
View File

@ -276,8 +276,9 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
nr_gops = size / sizeof(void *);
for (i = 0; i < nr_gops; i++) {
struct efi_graphics_output_mode_info *info;
efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID;
void *pciio;
efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
bool conout_found = false;
void *dummy;
void *h = gop_handle[i];
status = efi_call_phys3(sys_table->boottime->handle_protocol,
@ -285,19 +286,21 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
if (status != EFI_SUCCESS)
continue;
efi_call_phys3(sys_table->boottime->handle_protocol,
h, &pciio_proto, &pciio);
status = efi_call_phys3(sys_table->boottime->handle_protocol,
h, &conout_proto, &dummy);
if (status == EFI_SUCCESS)
conout_found = true;
status = efi_call_phys4(gop->query_mode, gop,
gop->mode->mode, &size, &info);
if (status == EFI_SUCCESS && (!first_gop || pciio)) {
if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
/*
* Apple provide GOPs that are not backed by
* real hardware (they're used to handle
* multiple displays). The workaround is to
* search for a GOP implementing the PCIIO
* protocol, and if one isn't found, to just
* fallback to the first GOP.
* Systems that use the UEFI Console Splitter may
* provide multiple GOP devices, not all of which are
* backed by real hardware. The workaround is to search
* for a GOP implementing the ConOut protocol, and if
* one isn't found, to just fall back to the first GOP.
*/
width = info->horizontal_resolution;
height = info->vertical_resolution;
@ -308,10 +311,10 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
pixels_per_scan_line = info->pixels_per_scan_line;
/*
* Once we've found a GOP supporting PCIIO,
* Once we've found a GOP supporting ConOut,
* don't bother looking any further.
*/
if (pciio)
if (conout_found)
break;
first_gop = gop;
@ -328,7 +331,6 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
si->lfb_width = width;
si->lfb_height = height;
si->lfb_base = fb_base;
si->lfb_size = fb_size;
si->pages = 1;
if (pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) {
@ -376,6 +378,10 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
si->rsvd_pos = 0;
}
si->lfb_size = si->lfb_linelength * si->lfb_height;
si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
free_handle:
efi_call_phys1(sys_table->boottime->free_pool, gop_handle);
return status;

4
arch/x86/boot/compressed/eboot.h
View File

@ -14,6 +14,10 @@
#define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT)
#define EFI_READ_CHUNK_SIZE (1024 * 1024)
#define EFI_CONSOLE_OUT_DEVICE_GUID \
EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x0, 0x90, 0x27, \
0x3f, 0xc1, 0x4d)
#define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0
#define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1
#define PIXEL_BIT_MASK 2

1
arch/x86/platform/efi/efi.c
View File

@ -890,6 +890,7 @@ void __init efi_enter_virtual_mode(void)
*
* Call EFI services through wrapper functions.
*/
efi.runtime_version = efi_systab.fw_revision;
efi.get_time = virt_efi_get_time;
efi.set_time = virt_efi_set_time;
efi.get_wakeup_time = virt_efi_get_wakeup_time;

4
drivers/video/efifb.c
View File

@ -553,7 +553,9 @@ static int __init efifb_init(void)
int ret;
char *option = NULL;
dmi_check_system(dmi_system_table);
if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
!(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
dmi_check_system(dmi_system_table);
if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
return -ENODEV;

2
include/linux/screen_info.h
View File

@ -68,6 +68,8 @@ struct screen_info {
#define VIDEO_FLAGS_NOCURSOR (1 << 0) /* The video mode has no cursor set */
#define VIDEO_CAPABILITY_SKIP_QUIRKS (1 << 0)
#ifdef __KERNEL__
extern struct screen_info screen_info;