static int
_dma_morecore(size_t min_size, int cached, struct dma_mem_descriptor* dma_desc)
{
static uint32_t _vaddr = DMA_VSTART;
struct seL4_ARM_Page_GetAddress getaddr_ret;
seL4_CPtr frame;
seL4_CPtr pd;
vka_t* vka;
int err;
pd = simple_get_pd(&_simple);
vka = &_vka;
/* Create a frame */
frame = vka_alloc_frame_leaky(vka, 12);
assert(frame);
if (!frame) {
return -1;
}
/* Try to map the page */
err = seL4_ARM_Page_Map(frame, pd, _vaddr, seL4_AllRights, 0);
if (err) {
seL4_CPtr pt;
/* Allocate a page table */
pt = vka_alloc_page_table_leaky(vka);
if (!pt) {
printf("Failed to create page table\n");
return -1;
}
/* Map the page table */
err = seL4_ARM_PageTable_Map(pt, pd, _vaddr, 0);
if (err) {
printf("Failed to map page table\n");
return -1;
}
/* Try to map the page again */
err = seL4_ARM_Page_Map(frame, pd, _vaddr, seL4_AllRights, 0);
if (err) {
printf("Failed to map page\n");
return -1;
}
}
/* Find the physical address of the page */
getaddr_ret = seL4_ARM_Page_GetAddress(frame);
assert(!getaddr_ret.error);
/* Setup dma memory description */
dma_desc->vaddr = _vaddr;
dma_desc->paddr = getaddr_ret.paddr;
dma_desc->cached = 0;
dma_desc->size_bits = 12;
dma_desc->alloc_cookie = (void*)frame;
dma_desc->cookie = NULL;
/* Advance the virtual address marker */
_vaddr += BIT(12);
return 0;
}
static int
test_large_page_flush_operation(env_t env)
{
int num_frame_types = ARRAY_SIZE(frame_types);
seL4_CPtr frames[num_frame_types];
int error;
vka_t *vka = &env->vka;
bool pt_mapped = false;
/* Grab some free vspace big enough to hold all the tests. */
seL4_Word vstart;
reservation_t reserve = vspace_reserve_range(&env->vspace, 2 * (1 << 25),
seL4_AllRights, 1, (void **) &vstart);
test_assert(reserve.res != 0);
vstart = ALIGN_UP(vstart, (1 << 25));
/* Create us some frames to play with. */
for (int i = 0; i < num_frame_types; i++) {
frames[i] = vka_alloc_frame_leaky(vka, CTZ(frame_types[i].size));
assert(frames[i]);
}
/* Also create a pagetable to map the pages into. */
seL4_CPtr pt = vka_alloc_page_table_leaky(vka);
/* Map the pages in. */
for (int i = 0; i < num_frame_types; i++) {
if (frame_types[i].need_pt && !pt_mapped) {
/* Map the pagetable in. */
error = seL4_ARCH_PageTable_Map(pt, env->page_directory,
vstart + frame_types[i].vaddr_offset,
seL4_ARCH_Default_VMAttributes);
test_assert(error == 0);
pt_mapped = true;
}
error = seL4_ARCH_Page_Map(frames[i], env->page_directory,
vstart + frame_types[i].vaddr_offset, seL4_AllRights,
seL4_ARCH_Default_VMAttributes);
test_assert(error == 0);
}
/* See if we can invoke page flush on each of them */
for (int i = 0; i < num_frame_types; i++) {
error = seL4_ARM_Page_Invalidate_Data(frames[i], 0, frame_types[i].size);
test_assert(error == 0);
error = seL4_ARM_Page_Clean_Data(frames[i], 0, frame_types[i].size);
test_assert(error == 0);
error = seL4_ARM_Page_CleanInvalidate_Data(frames[i], 0, frame_types[i].size);
test_assert(error == 0);
error = seL4_ARM_Page_Unify_Instruction(frames[i], 0, frame_types[i].size);
test_assert(error == 0);
error = seL4_ARM_PageDirectory_Invalidate_Data(env->page_directory, vstart + frame_types[i].vaddr_offset, vstart + frame_types[i].vaddr_offset + frame_types[i].size);
test_assert(error == 0);
error = seL4_ARM_PageDirectory_Clean_Data(env->page_directory, vstart + frame_types[i].vaddr_offset, vstart + frame_types[i].vaddr_offset + frame_types[i].size);
test_assert(error == 0);
error = seL4_ARM_PageDirectory_CleanInvalidate_Data(env->page_directory, vstart + frame_types[i].vaddr_offset, vstart + frame_types[i].vaddr_offset + frame_types[i].size);
test_assert(error == 0);
error = seL4_ARM_PageDirectory_Unify_Instruction(env->page_directory, vstart + frame_types[i].vaddr_offset, vstart + frame_types[i].vaddr_offset + frame_types[i].size);
test_assert(error == 0);
}
return sel4test_get_result();
}
