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add arm64 support

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- add arm64 dependent codes with GICv3 and SVE support
- fix bugs based on architecture separation requests
This commit is contained in:
Takayuki Okamoto
2017-09-05 15:06:27 +09:00
parent 704096b139
commit 9989f41fd3
192 changed files with 26941 additions and 34 deletions
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18
kernel/devobj.c
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@ -1,3 +1,4 @@
/* devobj.c COPYRIGHT FUJITSU LIMITED 2015-2017 */
/**
* \file devobj.c
* License details are found in the file LICENSE.
@ -87,7 +88,12 @@ int devobj_create(int fd, size_t len, off_t off, struct memobj **objp, int *maxp
int error;
struct devobj *obj = NULL;
const size_t npages = (len + PAGE_SIZE - 1) / PAGE_SIZE;
#ifdef POSTK_DEBUG_TEMP_FIX_36
const size_t uintptr_per_page = (PAGE_SIZE / sizeof(uintptr_t));
const size_t pfn_npages = (npages + uintptr_per_page - 1) / uintptr_per_page;
#else
const size_t pfn_npages = (npages / (PAGE_SIZE / sizeof(uintptr_t))) + 1;
#endif /*POSTK_DEBUG_TEMP_FIX_36*/
dkprintf("%s: fd: %d, len: %lu, off: %lu \n", __FUNCTION__, fd, len, off);
@ -168,8 +174,10 @@ static void devobj_release(struct memobj *memobj)
struct devobj *obj = to_devobj(memobj);
struct devobj *free_obj = NULL;
uintptr_t handle;
#ifndef POSTK_DEBUG_TEMP_FIX_36
const size_t pfn_npages =
(obj->npages / (PAGE_SIZE / sizeof(uintptr_t))) + 1;
#endif /*!POSTK_DEBUG_TEMP_FIX_36*/
dkprintf("devobj_release(%p %lx)\n", obj, obj->handle);
@ -201,7 +209,13 @@ static void devobj_release(struct memobj *memobj)
if (obj->pfn_table) {
// Don't call memory_stat_rss_sub() because devobj related pages don't reside in main memory
#ifdef POSTK_DEBUG_TEMP_FIX_36
const size_t uintptr_per_page = (PAGE_SIZE / sizeof(uintptr_t));
const size_t pfn_npages = (obj->npages + uintptr_per_page - 1) / uintptr_per_page;
ihk_mc_free_pages(obj->pfn_table, pfn_npages);
#else
ihk_mc_free_pages(obj->pfn_table, pfn_npages);
#endif /*POSTK_DEBUG_TEMP_FIX_36*/
}
kfree(free_obj);
}
@ -258,7 +272,11 @@ static int devobj_get_page(struct memobj *memobj, off_t off, int p2align, uintpt
/* TODO: do an arch dependent PTE to mapping flag conversion
* instead of this inline check, also, we rely on having the
* same PAT config as Linux here.. */
#ifdef POSTK_DEBUG_ARCH_DEP_12
if (pfn_is_write_combined(pfn)) {
#else /* POSTK_DEBUG_ARCH_DEP_12 */
if ((pfn & PFL1_PWT) && !(pfn & PFL1_PCD)) {
#endif /* POSTK_DEBUG_ARCH_DEP_12 */
*flag |= VR_WRITE_COMBINED;
}