1 files changed, 0 insertions, 85 deletions
diff --git a/kernel/l0/frame.c b/kernel/l0/frame.c
deleted file mode 100644
index 489d010..0000000
--- a/kernel/l0/frame.c
+++ /dev/null
@@ -1,85 +0,0 @@
-#include <frame.h>
-#include <dbglog.h>
-
-#include <mutex.h>
-
-// TODO: buddy allocator
-// this is a simple bitmap allocator
-	
-#define INDEX_FROM_BIT(a) ((a)/(8*4))
-#define OFFSET_FROM_BIT(a) ((a)%(8*4))
-
-static uint32_t *frame_bitset;
-static uint32_t nframes, nused_frames;
-static uint32_t begin_search_at;
-
-void frame_init_allocator(size_t total_ram, void** kernel_data_end) {
-	nframes = PAGE_ID(total_ram);
-
-	frame_bitset = (uint32_t*)ALIGN4_UP((size_t)*kernel_data_end);
-	*kernel_data_end = (void*)frame_bitset + ALIGN4_UP(nframes / 8);
-
-	for (size_t i = 0; i < ALIGN4_UP(nframes / 8)/4; i++)
-		frame_bitset[i] = 0;
-
-	nused_frames = 0;
-
-	size_t kernel_pages = PAGE_ALIGN_UP((size_t)*kernel_data_end - K_HIGHHALF_ADDR)/PAGE_SIZE;
-	for (size_t i = 0; i < kernel_pages; i++) {
-		size_t idx = INDEX_FROM_BIT(i);
-		size_t ofs = OFFSET_FROM_BIT(i);
-		frame_bitset[idx] |= (0x1 << ofs);
-		nused_frames++;
-	}
-	begin_search_at = INDEX_FROM_BIT(kernel_pages);
-}
-
-STATIC_MUTEX(frame_allocator_mutex);
-
-uint32_t frame_alloc(size_t n) {
-	if (n > 32) return 0;
-
-	mutex_lock(&frame_allocator_mutex);
-	for (uint32_t i = begin_search_at; i < INDEX_FROM_BIT(nframes); i++) {
-		if (frame_bitset[i] == 0xFFFFFFFF) {
-			if (i == begin_search_at) begin_search_at++;
-			continue;
-		}
-
-		for (uint32_t j = 0; j < 32 - n + 1; j++) {
-			uint32_t to_test = (0xFFFFFFFF >> (32 - n)) << j;
-			if (!(frame_bitset[i]&to_test)) {
-				frame_bitset[i] |= to_test;
-				nused_frames += n;
-
-				mutex_unlock(&frame_allocator_mutex);
-				return i * 32 + j;
-			}
-		}
-	}
-	mutex_unlock(&frame_allocator_mutex);
-	return 0;
-}
-
-void frame_free(uint32_t base, size_t n) {
-	mutex_lock(&frame_allocator_mutex);
-
-	for (size_t i = 0; i < n; i++) {
-		uint32_t idx = INDEX_FROM_BIT(base + i);
-		uint32_t ofs = OFFSET_FROM_BIT(base + i);
-		if (frame_bitset[idx] & (0x1 << ofs)) {
-			frame_bitset[idx] &= ~(0x1 << ofs);
-			nused_frames--;
-		}
-	}
-	if (INDEX_FROM_BIT(base) < begin_search_at)
-		begin_search_at = INDEX_FROM_BIT(base);
-
-	mutex_unlock(&frame_allocator_mutex);
-}
-
-void dbg_print_frame_stats() {
-	dbg_printf("Used frames: %d/%d\n", nused_frames, nframes);
-}
-
-/* vim: set ts=4 sw=4 tw=0 noet :*/