summaryrefslogtreecommitdiffstats
path: root/kernel/arch/x86/boot/compressed
diff options
context:
space:
mode:
authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/x86/boot/compressed
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/x86/boot/compressed')
-rw-r--r--kernel/arch/x86/boot/compressed/aslr.c2
-rw-r--r--kernel/arch/x86/boot/compressed/eboot.c40
-rw-r--r--kernel/arch/x86/boot/compressed/misc.c24
-rw-r--r--kernel/arch/x86/boot/compressed/misc.h11
4 files changed, 66 insertions, 11 deletions
diff --git a/kernel/arch/x86/boot/compressed/aslr.c b/kernel/arch/x86/boot/compressed/aslr.c
index d7b1f655b..6a9b96b46 100644
--- a/kernel/arch/x86/boot/compressed/aslr.c
+++ b/kernel/arch/x86/boot/compressed/aslr.c
@@ -82,7 +82,7 @@ static unsigned long get_random_long(void)
if (has_cpuflag(X86_FEATURE_TSC)) {
debug_putstr(" RDTSC");
- rdtscll(raw);
+ raw = rdtsc();
random ^= raw;
use_i8254 = false;
diff --git a/kernel/arch/x86/boot/compressed/eboot.c b/kernel/arch/x86/boot/compressed/eboot.c
index 0cdc154a2..583d539a4 100644
--- a/kernel/arch/x86/boot/compressed/eboot.c
+++ b/kernel/arch/x86/boot/compressed/eboot.c
@@ -624,7 +624,7 @@ setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line,
static efi_status_t
__gop_query32(struct efi_graphics_output_protocol_32 *gop32,
struct efi_graphics_output_mode_info **info,
- unsigned long *size, u32 *fb_base)
+ unsigned long *size, u64 *fb_base)
{
struct efi_graphics_output_protocol_mode_32 *mode;
efi_status_t status;
@@ -650,7 +650,8 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto,
unsigned long nr_gops;
u16 width, height;
u32 pixels_per_scan_line;
- u32 fb_base;
+ u32 ext_lfb_base;
+ u64 fb_base;
struct efi_pixel_bitmask pixel_info;
int pixel_format;
efi_status_t status;
@@ -667,6 +668,7 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto,
bool conout_found = false;
void *dummy = NULL;
u32 h = handles[i];
+ u64 current_fb_base;
status = efi_call_early(handle_protocol, h,
proto, (void **)&gop32);
@@ -678,7 +680,7 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto,
if (status == EFI_SUCCESS)
conout_found = true;
- status = __gop_query32(gop32, &info, &size, &fb_base);
+ status = __gop_query32(gop32, &info, &size, &current_fb_base);
if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
/*
* Systems that use the UEFI Console Splitter may
@@ -692,6 +694,7 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto,
pixel_format = info->pixel_format;
pixel_info = info->pixel_information;
pixels_per_scan_line = info->pixels_per_scan_line;
+ fb_base = current_fb_base;
/*
* Once we've found a GOP supporting ConOut,
@@ -713,6 +716,13 @@ setup_gop32(struct screen_info *si, efi_guid_t *proto,
si->lfb_width = width;
si->lfb_height = height;
si->lfb_base = fb_base;
+
+ ext_lfb_base = (u64)(unsigned long)fb_base >> 32;
+ if (ext_lfb_base) {
+ si->capabilities |= VIDEO_CAPABILITY_64BIT_BASE;
+ si->ext_lfb_base = ext_lfb_base;
+ }
+
si->pages = 1;
setup_pixel_info(si, pixels_per_scan_line, pixel_info, pixel_format);
@@ -727,7 +737,7 @@ out:
static efi_status_t
__gop_query64(struct efi_graphics_output_protocol_64 *gop64,
struct efi_graphics_output_mode_info **info,
- unsigned long *size, u32 *fb_base)
+ unsigned long *size, u64 *fb_base)
{
struct efi_graphics_output_protocol_mode_64 *mode;
efi_status_t status;
@@ -753,7 +763,8 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto,
unsigned long nr_gops;
u16 width, height;
u32 pixels_per_scan_line;
- u32 fb_base;
+ u32 ext_lfb_base;
+ u64 fb_base;
struct efi_pixel_bitmask pixel_info;
int pixel_format;
efi_status_t status;
@@ -770,6 +781,7 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto,
bool conout_found = false;
void *dummy = NULL;
u64 h = handles[i];
+ u64 current_fb_base;
status = efi_call_early(handle_protocol, h,
proto, (void **)&gop64);
@@ -781,7 +793,7 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto,
if (status == EFI_SUCCESS)
conout_found = true;
- status = __gop_query64(gop64, &info, &size, &fb_base);
+ status = __gop_query64(gop64, &info, &size, &current_fb_base);
if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
/*
* Systems that use the UEFI Console Splitter may
@@ -795,6 +807,7 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto,
pixel_format = info->pixel_format;
pixel_info = info->pixel_information;
pixels_per_scan_line = info->pixels_per_scan_line;
+ fb_base = current_fb_base;
/*
* Once we've found a GOP supporting ConOut,
@@ -816,6 +829,13 @@ setup_gop64(struct screen_info *si, efi_guid_t *proto,
si->lfb_width = width;
si->lfb_height = height;
si->lfb_base = fb_base;
+
+ ext_lfb_base = (u64)(unsigned long)fb_base >> 32;
+ if (ext_lfb_base) {
+ si->capabilities |= VIDEO_CAPABILITY_64BIT_BASE;
+ si->ext_lfb_base = ext_lfb_base;
+ }
+
si->pages = 1;
setup_pixel_info(si, pixels_per_scan_line, pixel_info, pixel_format);
@@ -1041,7 +1061,6 @@ void setup_graphics(struct boot_params *boot_params)
struct boot_params *make_boot_params(struct efi_config *c)
{
struct boot_params *boot_params;
- struct sys_desc_table *sdt;
struct apm_bios_info *bi;
struct setup_header *hdr;
struct efi_info *efi;
@@ -1089,7 +1108,6 @@ struct boot_params *make_boot_params(struct efi_config *c)
hdr = &boot_params->hdr;
efi = &boot_params->efi_info;
bi = &boot_params->apm_bios_info;
- sdt = &boot_params->sys_desc_table;
/* Copy the second sector to boot_params */
memcpy(&hdr->jump, image->image_base + 512, 512);
@@ -1118,8 +1136,6 @@ struct boot_params *make_boot_params(struct efi_config *c)
/* Clear APM BIOS info */
memset(bi, 0, sizeof(*bi));
- memset(sdt, 0, sizeof(*sdt));
-
status = efi_parse_options(cmdline_ptr);
if (status != EFI_SUCCESS)
goto fail2;
@@ -1228,6 +1244,10 @@ static efi_status_t setup_e820(struct boot_params *params,
e820_type = E820_NVS;
break;
+ case EFI_PERSISTENT_MEMORY:
+ e820_type = E820_PMEM;
+ break;
+
default:
continue;
}
diff --git a/kernel/arch/x86/boot/compressed/misc.c b/kernel/arch/x86/boot/compressed/misc.c
index e28437e0f..79dac1758 100644
--- a/kernel/arch/x86/boot/compressed/misc.c
+++ b/kernel/arch/x86/boot/compressed/misc.c
@@ -220,6 +220,23 @@ void __putstr(const char *s)
outb(0xff & (pos >> 1), vidport+1);
}
+void __puthex(unsigned long value)
+{
+ char alpha[2] = "0";
+ int bits;
+
+ for (bits = sizeof(value) * 8 - 4; bits >= 0; bits -= 4) {
+ unsigned long digit = (value >> bits) & 0xf;
+
+ if (digit < 0xA)
+ alpha[0] = '0' + digit;
+ else
+ alpha[0] = 'a' + (digit - 0xA);
+
+ __putstr(alpha);
+ }
+}
+
static void error(char *x)
{
error_putstr("\n\n");
@@ -399,6 +416,13 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
free_mem_ptr = heap; /* Heap */
free_mem_end_ptr = heap + BOOT_HEAP_SIZE;
+ /* Report initial kernel position details. */
+ debug_putaddr(input_data);
+ debug_putaddr(input_len);
+ debug_putaddr(output);
+ debug_putaddr(output_len);
+ debug_putaddr(run_size);
+
/*
* The memory hole needed for the kernel is the larger of either
* the entire decompressed kernel plus relocation table, or the
diff --git a/kernel/arch/x86/boot/compressed/misc.h b/kernel/arch/x86/boot/compressed/misc.h
index 805d25ca5..3783dc3e1 100644
--- a/kernel/arch/x86/boot/compressed/misc.h
+++ b/kernel/arch/x86/boot/compressed/misc.h
@@ -34,16 +34,27 @@ extern memptr free_mem_ptr;
extern memptr free_mem_end_ptr;
extern struct boot_params *real_mode; /* Pointer to real-mode data */
void __putstr(const char *s);
+void __puthex(unsigned long value);
#define error_putstr(__x) __putstr(__x)
+#define error_puthex(__x) __puthex(__x)
#ifdef CONFIG_X86_VERBOSE_BOOTUP
#define debug_putstr(__x) __putstr(__x)
+#define debug_puthex(__x) __puthex(__x)
+#define debug_putaddr(__x) { \
+ debug_putstr(#__x ": 0x"); \
+ debug_puthex((unsigned long)(__x)); \
+ debug_putstr("\n"); \
+ }
#else
static inline void debug_putstr(const char *s)
{ }
+static inline void debug_puthex(const char *s)
+{ }
+#define debug_putaddr(x) /* */
#endif