#include "util.h" // checksum
#include "config.h" // BUILD_BIOS_ADDR
-#include "memmap.h" // find_high_area
+#include "memmap.h" // struct e820entry
#include "farptr.h" // GET_FARVAR
#include "biosvar.h" // GET_BDA
+// Information on a reserved area.
+struct allocinfo_s {
+ struct allocinfo_s *next, **pprev;
+ void *data, *dataend, *allocend;
+};
-#if MODESEGMENT
-// The 16bit pmm entry points runs in "big real" mode, and can
-// therefore read/write to the 32bit malloc variables.
-#define GET_PMMVAR(var) ({ \
- SET_SEG(ES, 0); \
- __GET_VAR("addr32 ", ES, (var)); })
-#define SET_PMMVAR(var, val) do { \
- SET_SEG(ES, 0); \
- __SET_VAR("addr32 ", ES, (var), (val)); \
- } while (0)
-#else
-#define GET_PMMVAR(var) (var)
-#define SET_PMMVAR(var, val) do { (var) = (val); } while (0)
-#endif
+// Information on a tracked memory allocation.
+struct allocdetail_s {
+ struct allocinfo_s detailinfo;
+ struct allocinfo_s datainfo;
+ u32 handle;
+};
-// Zone definitions
+// The various memory zones.
struct zone_s {
- u32 top, bottom, cur;
+ struct allocinfo_s *info;
};
-struct zone_s ZoneLow VAR32FLATVISIBLE, ZoneHigh VAR32FLATVISIBLE;
-struct zone_s ZoneFSeg VAR32FLATVISIBLE;
-struct zone_s ZoneTmpLow VAR32FLATVISIBLE, ZoneTmpHigh VAR32FLATVISIBLE;
+struct zone_s ZoneLow, ZoneHigh, ZoneFSeg, ZoneTmpLow, ZoneTmpHigh;
-struct zone_s *Zones[] VAR32FLATVISIBLE = {
+static struct zone_s *Zones[] = {
&ZoneTmpLow, &ZoneLow, &ZoneFSeg, &ZoneTmpHigh, &ZoneHigh
};
+/****************************************************************
+ * low-level memory reservations
+ ****************************************************************/
+
+// Find and reserve space from a given zone
+static void *
+allocSpace(struct zone_s *zone, u32 size, u32 align, struct allocinfo_s *fill)
+{
+ struct allocinfo_s *info;
+ for (info = zone->info; info; info = info->next) {
+ void *dataend = info->dataend;
+ void *allocend = info->allocend;
+ void *newallocend = (void*)ALIGN_DOWN((u32)allocend - size, align);
+ if (newallocend >= dataend && newallocend <= allocend) {
+ // Found space - now reserve it.
+ struct allocinfo_s **pprev = info->pprev;
+ if (!fill)
+ fill = newallocend;
+ fill->next = info;
+ fill->pprev = pprev;
+ fill->data = newallocend;
+ fill->dataend = newallocend + size;
+ fill->allocend = allocend;
+
+ info->allocend = newallocend;
+ info->pprev = &fill->next;
+ *pprev = fill;
+ return newallocend;
+ }
+ }
+ return NULL;
+}
+
+// Release space allocated with allocSpace()
+static void
+freeSpace(struct allocinfo_s *info)
+{
+ struct allocinfo_s *next = info->next;
+ struct allocinfo_s **pprev = info->pprev;
+ *pprev = next;
+ if (next) {
+ if (next->allocend == info->data)
+ next->allocend = info->allocend;
+ next->pprev = pprev;
+ }
+}
+
+// Add new memory to a zone
+static void
+addSpace(struct zone_s *zone, void *start, void *end)
+{
+ // Find position to add space
+ struct allocinfo_s **pprev = &zone->info, *info;
+ for (;;) {
+ info = *pprev;
+ if (!info || info->data < start)
+ break;
+ pprev = &info->next;
+ }
+
+ // Add space using temporary allocation info.
+ struct allocdetail_s tempdetail;
+ tempdetail.datainfo.next = info;
+ tempdetail.datainfo.pprev = pprev;
+ tempdetail.datainfo.data = tempdetail.datainfo.dataend = start;
+ tempdetail.datainfo.allocend = end;
+ *pprev = &tempdetail.datainfo;
+ if (info)
+ info->pprev = &tempdetail.datainfo.next;
+
+ // Allocate final allocation info.
+ struct allocdetail_s *detail = allocSpace(
+ &ZoneTmpHigh, sizeof(*detail), MALLOC_MIN_ALIGN, NULL);
+ if (!detail) {
+ detail = allocSpace(&ZoneTmpLow, sizeof(*detail)
+ , MALLOC_MIN_ALIGN, NULL);
+ if (!detail) {
+ *tempdetail.datainfo.pprev = tempdetail.datainfo.next;
+ if (tempdetail.datainfo.next)
+ tempdetail.datainfo.next->pprev = tempdetail.datainfo.pprev;
+ warn_noalloc();
+ return;
+ }
+ }
+
+ // Replace temp alloc space with final alloc space
+ memcpy(&detail->datainfo, &tempdetail.datainfo, sizeof(detail->datainfo));
+ detail->handle = PMM_DEFAULT_HANDLE;
+
+ *tempdetail.datainfo.pprev = &detail->datainfo;
+ if (tempdetail.datainfo.next)
+ tempdetail.datainfo.next->pprev = &detail->datainfo.next;
+}
+
+// Search all zones for an allocation obtained from allocSpace()
+static struct allocinfo_s *
+findAlloc(void *data)
+{
+ int i;
+ for (i=0; i<ARRAY_SIZE(Zones); i++) {
+ struct zone_s *zone = Zones[i];
+ struct allocinfo_s *info;
+ for (info = zone->info; info; info = info->next)
+ if (info->data == data)
+ return info;
+ }
+ return NULL;
+}
+
+// Return the last sentinal node of a zone
+static struct allocinfo_s *
+findLast(struct zone_s *zone)
+{
+ struct allocinfo_s *info = zone->info;
+ if (!info)
+ return NULL;
+ for (;;) {
+ struct allocinfo_s *next = info->next;
+ if (!next)
+ return info;
+ info = next;
+ }
+}
+
+
+/****************************************************************
+ * Setup
+ ****************************************************************/
+
+void
+malloc_setup(void)
+{
+ ASSERT32FLAT();
+ dprintf(3, "malloc setup\n");
+
+ // Populate temp high ram
+ u32 highram = 0;
+ int i;
+ for (i=e820_count-1; i>=0; i--) {
+ struct e820entry *en = &e820_list[i];
+ u64 end = en->start + en->size;
+ if (end < 1024*1024)
+ break;
+ if (en->type != E820_RAM || end > 0xffffffff)
+ continue;
+ u32 s = en->start, e = end;
+ if (!highram) {
+ u32 newe = ALIGN_DOWN(e - CONFIG_MAX_HIGHTABLE, MALLOC_MIN_ALIGN);
+ if (newe <= e && newe >= s) {
+ highram = newe;
+ e = newe;
+ }
+ }
+ addSpace(&ZoneTmpHigh, (void*)s, (void*)e);
+ }
+
+ // Populate other regions
+ addSpace(&ZoneTmpLow, (void*)BUILD_STACK_ADDR, (void*)BUILD_EBDA_MINIMUM);
+ addSpace(&ZoneFSeg, BiosTableSpace, &BiosTableSpace[CONFIG_MAX_BIOSTABLE]);
+ addSpace(&ZoneLow, (void*)BUILD_LOWRAM_END, (void*)BUILD_LOWRAM_END);
+ if (highram) {
+ addSpace(&ZoneHigh, (void*)highram
+ , (void*)highram + CONFIG_MAX_HIGHTABLE);
+ add_e820(highram, CONFIG_MAX_HIGHTABLE, E820_RESERVED);
+ }
+}
+
+// Update pointers after code relocation.
+void
+malloc_fixupreloc(void)
+{
+ ASSERT32FLAT();
+ if (!CONFIG_RELOCATE_INIT)
+ return;
+ dprintf(3, "malloc fixup reloc\n");
+
+ int i;
+ for (i=0; i<ARRAY_SIZE(Zones); i++) {
+ struct zone_s *zone = Zones[i];
+ zone->info->pprev = &zone->info;
+ }
+
+ // Add space free'd during relocation in f-segment to ZoneFSeg
+ extern u8 code32init_end[];
+ if ((u32)code32init_end > BUILD_BIOS_ADDR) {
+ memset((void*)BUILD_BIOS_ADDR, 0, (u32)code32init_end - BUILD_BIOS_ADDR);
+ addSpace(&ZoneFSeg, (void*)BUILD_BIOS_ADDR, code32init_end);
+ }
+}
+
+void
+malloc_finalize(void)
+{
+ ASSERT32FLAT();
+ dprintf(3, "malloc finalize\n");
+
+ // Reserve more low-mem if needed.
+ u32 endlow = GET_BDA(mem_size_kb)*1024;
+ add_e820(endlow, BUILD_LOWRAM_END-endlow, E820_RESERVED);
+
+ // Give back unused high ram.
+ struct allocinfo_s *info = findLast(&ZoneHigh);
+ if (info) {
+ u32 giveback = ALIGN_DOWN(info->allocend - info->dataend, PAGE_SIZE);
+ add_e820((u32)info->dataend, giveback, E820_RAM);
+ dprintf(1, "Returned %d bytes of ZoneHigh\n", giveback);
+ }
+}
+
+
/****************************************************************
* ebda movement
****************************************************************/
return -1;
// Do copy
- if (MODESEGMENT)
- memcpy_far(FLATPTR_TO_SEG(newebda)
- , (void*)FLATPTR_TO_OFFSET(newebda)
- , FLATPTR_TO_SEG(oldebda)
- , (void*)FLATPTR_TO_OFFSET(oldebda)
- , ebda_size * 1024);
- else
- memmove((void*)newebda, (void*)oldebda, ebda_size * 1024);
+ memmove((void*)newebda, (void*)oldebda, ebda_size * 1024);
// Update indexes
dprintf(1, "ebda moved from %x to %x\n", oldebda, newebda);
static void
zonelow_expand(u32 size, u32 align)
{
- u32 oldpos, newpos, bottom;
- for (;;) {
- oldpos = GET_PMMVAR(ZoneLow.cur);
- newpos = ALIGN_DOWN(oldpos - size, align);
- bottom = GET_PMMVAR(ZoneLow.bottom);
- if (newpos >= bottom && newpos <= oldpos)
- // Space already present.
- return;
- // Make sure to not move ebda while an optionrom is running.
- if (likely(!wait_preempt()))
- break;
- }
+ struct allocinfo_s *info = findLast(&ZoneLow);
+ if (!info)
+ return;
+ u32 oldpos = (u32)info->allocend;
+ u32 newpos = ALIGN_DOWN(oldpos - size, align);
+ u32 bottom = (u32)info->dataend;
+ if (newpos >= bottom && newpos <= oldpos)
+ // Space already present.
+ return;
u16 ebda_seg = get_ebda_seg();
u32 ebda_pos = (u32)MAKE_FLATPTR(ebda_seg, 0);
u8 ebda_size = GET_EBDA2(ebda_seg, size);
u32 ebda_end = ebda_pos + ebda_size * 1024;
- if (ebda_end != bottom) {
+ if (ebda_end != bottom)
// Something else is after ebda - can't use any existing space.
- oldpos = ebda_end;
- newpos = ALIGN_DOWN(oldpos - size, align);
- }
+ newpos = ALIGN_DOWN(ebda_end - size, align);
u32 newbottom = ALIGN_DOWN(newpos, 1024);
u32 newebda = ALIGN_DOWN(newbottom - ebda_size * 1024, 1024);
if (newebda < BUILD_EBDA_MINIMUM)
return;
// Update zone
- SET_PMMVAR(ZoneLow.cur, oldpos);
- SET_PMMVAR(ZoneLow.bottom, newbottom);
+ if (ebda_end == bottom) {
+ info->data = (void*)newbottom;
+ info->dataend = (void*)newbottom;
+ } else
+ addSpace(&ZoneLow, (void*)newbottom, (void*)ebda_end);
}
-
-/****************************************************************
- * zone allocations
- ****************************************************************/
-
-// Obtain memory from a given zone.
-static void * __malloc
-zone_malloc(struct zone_s *zone, u32 size, u32 align)
+// Check if can expand the given zone to fulfill an allocation
+static void *
+allocExpandSpace(struct zone_s *zone, u32 size, u32 align
+ , struct allocinfo_s *fill)
{
- u32 oldpos = GET_PMMVAR(zone->cur);
- u32 newpos = ALIGN_DOWN(oldpos - size, align);
- if (newpos < GET_PMMVAR(zone->bottom) || newpos > oldpos)
- // No space
- return NULL;
- SET_PMMVAR(zone->cur, newpos);
- return (void*)newpos;
-}
+ void *data = allocSpace(zone, size, align, fill);
+ if (data || zone != &ZoneLow)
+ return data;
-// Find the zone that contains the given data block.
-static struct zone_s *
-zone_find(void *data)
-{
- int i;
- for (i=0; i<ARRAY_SIZE(Zones); i++) {
- struct zone_s *zone = GET_PMMVAR(Zones[i]);
- if ((u32)data >= GET_PMMVAR(zone->cur)
- && (u32)data < GET_PMMVAR(zone->top))
- return zone;
+ // Make sure to not move ebda while an optionrom is running.
+ if (unlikely(wait_preempt())) {
+ data = allocSpace(zone, size, align, fill);
+ if (data)
+ return data;
}
- return NULL;
-}
-// Return memory to a zone (if it was the last to be allocated).
-static int
-zone_free(void *data, u32 olddata)
-{
- struct zone_s *zone = zone_find(data);
- if (!zone || !data || GET_PMMVAR(zone->cur) != (u32)data)
- return -1;
- SET_PMMVAR(zone->cur, olddata);
- return 0;
-}
-
-// Report the status of all the zones.
-static void
-dumpZones(void)
-{
- int i;
- for (i=0; i<ARRAY_SIZE(Zones); i++) {
- struct zone_s *zone = Zones[i];
- u32 used = zone->top - zone->cur;
- u32 avail = zone->top - zone->bottom;
- u32 pct = avail ? ((100 * used) / avail) : 0;
- dprintf(2, "zone %d: %08x-%08x used=%d (%d%%)\n"
- , i, zone->bottom, zone->top, used, pct);
- }
+ zonelow_expand(size, align);
+ return allocSpace(zone, size, align, fill);
}
* tracked memory allocations
****************************************************************/
-// Information on PMM tracked allocations
-struct pmmalloc_s {
- void *data;
- u32 olddata;
- u32 handle;
- u32 oldallocdata;
- struct pmmalloc_s *next;
-};
-
-struct pmmalloc_s *PMMAllocs VAR32FLATVISIBLE;
-
// Allocate memory from the given zone and track it as a PMM allocation
void * __malloc
pmm_malloc(struct zone_s *zone, u32 handle, u32 size, u32 align)
{
- u32 oldallocdata = GET_PMMVAR(ZoneTmpHigh.cur);
- struct pmmalloc_s *info = zone_malloc(&ZoneTmpHigh, sizeof(*info)
- , MALLOC_MIN_ALIGN);
- if (!info) {
- oldallocdata = GET_PMMVAR(ZoneTmpLow.cur);
- info = zone_malloc(&ZoneTmpLow, sizeof(*info), MALLOC_MIN_ALIGN);
- if (!info)
+ ASSERT32FLAT();
+ if (!size)
+ return NULL;
+
+ // Find and reserve space for bookkeeping.
+ struct allocdetail_s *detail = allocSpace(
+ &ZoneTmpHigh, sizeof(*detail), MALLOC_MIN_ALIGN, NULL);
+ if (!detail) {
+ detail = allocSpace(&ZoneTmpLow, sizeof(*detail)
+ , MALLOC_MIN_ALIGN, NULL);
+ if (!detail)
return NULL;
}
- if (zone == &ZoneLow)
- zonelow_expand(size, align);
- u32 olddata = GET_PMMVAR(zone->cur);
- void *data = zone_malloc(zone, size, align);
- if (! data) {
- zone_free(info, oldallocdata);
+
+ // Find and reserve space for main allocation
+ void *data = allocExpandSpace(zone, size, align, &detail->datainfo);
+ if (!data) {
+ freeSpace(&detail->detailinfo);
return NULL;
}
+
dprintf(8, "pmm_malloc zone=%p handle=%x size=%d align=%x"
- " ret=%p (info=%p)\n"
+ " ret=%p (detail=%p)\n"
, zone, handle, size, align
- , data, info);
- SET_PMMVAR(info->data, data);
- SET_PMMVAR(info->olddata, olddata);
- SET_PMMVAR(info->handle, handle);
- SET_PMMVAR(info->oldallocdata, oldallocdata);
- SET_PMMVAR(info->next, GET_PMMVAR(PMMAllocs));
- SET_PMMVAR(PMMAllocs, info);
- return data;
-}
+ , data, detail);
+ detail->handle = handle;
-// Free a raw data block (either from a zone or from pmm alloc list).
-static void
-pmm_free_data(void *data, u32 olddata)
-{
- int ret = zone_free(data, olddata);
- if (!ret)
- // Success - done.
- return;
- struct pmmalloc_s *info;
- for (info=GET_PMMVAR(PMMAllocs); info; info = GET_PMMVAR(info->next))
- if (GET_PMMVAR(info->olddata) == (u32)data) {
- SET_PMMVAR(info->olddata, olddata);
- return;
- } else if (GET_PMMVAR(info->oldallocdata) == (u32)data) {
- SET_PMMVAR(info->oldallocdata, olddata);
- return;
- }
+ return data;
}
// Free a data block allocated with pmm_malloc
int
pmm_free(void *data)
{
- struct pmmalloc_s **pinfo = &PMMAllocs;
- for (;;) {
- struct pmmalloc_s *info = GET_PMMVAR(*pinfo);
- if (!info)
- return -1;
- if (GET_PMMVAR(info->data) == data) {
- SET_PMMVAR(*pinfo, GET_PMMVAR(info->next));
- u32 oldallocdata = GET_PMMVAR(info->oldallocdata);
- u32 olddata = GET_PMMVAR(info->olddata);
- pmm_free_data(data, olddata);
- pmm_free_data(info, oldallocdata);
- dprintf(8, "pmm_free data=%p olddata=%p oldallocdata=%p info=%p\n"
- , data, (void*)olddata, (void*)oldallocdata, info);
- return 0;
- }
- pinfo = &info->next;
- }
+ ASSERT32FLAT();
+ struct allocinfo_s *info = findAlloc(data);
+ if (!info || data == (void*)info || data == info->dataend)
+ return -1;
+ struct allocdetail_s *detail = container_of(
+ info, struct allocdetail_s, datainfo);
+ dprintf(8, "pmm_free %p (detail=%p)\n", data, detail);
+ freeSpace(info);
+ freeSpace(&detail->detailinfo);
+ return 0;
}
// Find the amount of free space in a given zone.
pmm_getspace(struct zone_s *zone)
{
// XXX - doesn't account for ZoneLow being able to grow.
- u32 space = GET_PMMVAR(zone->cur) - GET_PMMVAR(zone->bottom);
+ // XXX - results not reliable when CONFIG_THREAD_OPTIONROMS
+ u32 maxspace = 0;
+ struct allocinfo_s *info;
+ for (info = zone->info; info; info = info->next) {
+ u32 space = info->allocend - info->dataend;
+ if (space > maxspace)
+ maxspace = space;
+ }
+
if (zone != &ZoneTmpHigh && zone != &ZoneTmpLow)
- return space;
+ return maxspace;
// Account for space needed for PMM tracking.
- u32 reserve = ALIGN(sizeof(struct pmmalloc_s), MALLOC_MIN_ALIGN);
- if (space <= reserve)
+ u32 reserve = ALIGN(sizeof(struct allocdetail_s), MALLOC_MIN_ALIGN);
+ if (maxspace <= reserve)
return 0;
- return space - reserve;
+ return maxspace - reserve;
}
// Find the data block allocated with pmm_malloc with a given handle.
static void *
pmm_find(u32 handle)
{
- struct pmmalloc_s *info;
- for (info=GET_PMMVAR(PMMAllocs); info; info = GET_PMMVAR(info->next))
- if (GET_PMMVAR(info->handle) == handle)
- return GET_PMMVAR(info->data);
- return NULL;
-}
-
-void
-malloc_setup(void)
-{
- ASSERT32FLAT();
- dprintf(3, "malloc setup\n");
-
- PMMAllocs = NULL;
-
- // Memory in 0xf0000 area.
- extern u8 code32flat_start[];
- if ((u32)code32flat_start > BUILD_BIOS_ADDR)
- // Clear unused parts of f-segment
- memset((void*)BUILD_BIOS_ADDR, 0
- , (u32)code32flat_start - BUILD_BIOS_ADDR);
- memset(BiosTableSpace, 0, CONFIG_MAX_BIOSTABLE);
- ZoneFSeg.bottom = (u32)BiosTableSpace;
- ZoneFSeg.top = ZoneFSeg.cur = ZoneFSeg.bottom + CONFIG_MAX_BIOSTABLE;
-
- // Memory under 1Meg.
- ZoneTmpLow.bottom = BUILD_STACK_ADDR;
- ZoneTmpLow.top = ZoneTmpLow.cur = BUILD_EBDA_MINIMUM;
-
- // Permanent memory under 1Meg.
- ZoneLow.bottom = ZoneLow.top = ZoneLow.cur = BUILD_LOWRAM_END;
-
- // Find memory at the top of ram.
- struct e820entry *e = find_high_area(CONFIG_MAX_HIGHTABLE+MALLOC_MIN_ALIGN);
- if (!e) {
- // No memory above 1Meg
- memset(&ZoneHigh, 0, sizeof(ZoneHigh));
- memset(&ZoneTmpHigh, 0, sizeof(ZoneTmpHigh));
- return;
+ int i;
+ for (i=0; i<ARRAY_SIZE(Zones); i++) {
+ struct zone_s *zone = Zones[i];
+ struct allocinfo_s *info;
+ for (info = zone->info; info; info = info->next) {
+ if (info->data != (void*)info)
+ continue;
+ struct allocdetail_s *detail = container_of(
+ info, struct allocdetail_s, detailinfo);
+ if (detail->handle == handle)
+ return detail->datainfo.data;
+ }
}
- u32 top = e->start + e->size, bottom = e->start;
-
- // Memory at top of ram.
- ZoneHigh.bottom = ALIGN(top - CONFIG_MAX_HIGHTABLE, MALLOC_MIN_ALIGN);
- ZoneHigh.top = ZoneHigh.cur = ZoneHigh.bottom + CONFIG_MAX_HIGHTABLE;
- add_e820(ZoneHigh.bottom, CONFIG_MAX_HIGHTABLE, E820_RESERVED);
-
- // Memory above 1Meg
- ZoneTmpHigh.bottom = ALIGN(bottom, MALLOC_MIN_ALIGN);
- ZoneTmpHigh.top = ZoneTmpHigh.cur = ZoneHigh.bottom;
-}
-
-void
-malloc_finalize(void)
-{
- dprintf(3, "malloc finalize\n");
-
- dumpZones();
-
- // Reserve more low-mem if needed.
- u32 endlow = GET_BDA(mem_size_kb)*1024;
- add_e820(endlow, BUILD_LOWRAM_END-endlow, E820_RESERVED);
-
- // Give back unused high ram.
- u32 giveback = ALIGN_DOWN(ZoneHigh.cur - ZoneHigh.bottom, PAGE_SIZE);
- add_e820(ZoneHigh.bottom, giveback, E820_RAM);
- dprintf(1, "Returned %d bytes of ZoneHigh\n", giveback);
-
- // Clear low-memory allocations.
- memset((void*)ZoneTmpLow.bottom, 0, ZoneTmpLow.top - ZoneTmpLow.bottom);
+ return NULL;
}
return PMM_FUNCTION_NOT_SUPPORTED;
}
-u32 VISIBLE16
+u32 VISIBLE32INIT
handle_pmm(u16 *args)
{
+ ASSERT32FLAT();
if (! CONFIG_PMM)
return PMM_FUNCTION_NOT_SUPPORTED;
u16 arg1 = args[0];
dprintf(DEBUG_HDL_pmm, "pmm call arg1=%x\n", arg1);
+ int oldpreempt;
+ if (CONFIG_THREAD_OPTIONROMS) {
+ // Not a preemption event - don't wait in wait_preempt()
+ oldpreempt = CanPreempt;
+ CanPreempt = 0;
+ }
+
+ u32 ret;
switch (arg1) {
- case 0x00: return handle_pmm00(args);
- case 0x01: return handle_pmm01(args);
- case 0x02: return handle_pmm02(args);
- default: return handle_pmmXX(args);
+ case 0x00: ret = handle_pmm00(args); break;
+ case 0x01: ret = handle_pmm01(args); break;
+ case 0x02: ret = handle_pmm02(args); break;
+ default: ret = handle_pmmXX(args); break;
}
+
+ if (CONFIG_THREAD_OPTIONROMS)
+ CanPreempt = oldpreempt;
+
+ return ret;
}
// romlayout.S
projects / seabios.git / blobdiff