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riscv: add empty bin, remove spike_utils.c

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Ronald G. Minnich 7 years ago
parent
commit
2a92047fbf
2 changed files with 0 additions and 226 deletions
  1. 0 0
      riscv/bin/.make_git_happy
  2. 0 226
      sys/src/9/riscv/spike_util.c

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riscv/bin/.make_git_happy


+ 0 - 226
sys/src/9/riscv/spike_util.c

@@ -1,226 +0,0 @@
-/*
- * Copyright (c) 2013, The Regents of the University of California (Regents).
- * All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Regents nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
- * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
- * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
-
-#include "u.h"
-#include "../port/lib.h"
-#include "mem.h"
-#include "dat.h"
-#include "fns.h"
-
-#include "encoding.h"
-#include "atomic.h"
-#include "spike_util.h"
-
-uintptr_t translate_address(uintptr_t vAddr) {
-	// TODO: implement the page table translation algorithm
-	//uintptr_t pageTableRoot = read_csr(sptbr);
-	uintptr_t physAddrMask = 0xfffffff;
-	uintptr_t translationResult = vAddr & physAddrMask;
-	//print("Translated virtual address 0x%llx to physical address 0x%llx\n", vAddr, translationResult);
-	return translationResult;
-}
-
-uintptr_t mcall_query_memory(uintptr_t id, memory_block_info *p)
-{
-	uintptr_t physicalAddr = translate_address((uintptr_t) p);
-	memory_block_info *info = (memory_block_info*) physicalAddr;
-	if (id == 0) {
-		info->base = 0x1000000; // hard coded for now, but we can put these values somewhere later
-		info->size = 0x7F000000 - info->base;
-		return 0;
-	}
-
-	return -1;
-}
-
-#if 0
-uintptr_t mcall_send_ipi(uintptr_t recipient)
-{
-	//if (recipient >= num_harts)
-	//return -1;
-
-	if (atomic_swap(&OTHER_HLS(recipient)->ipi_pending, 1) == 0) {
-		mb();
-		write_csr(send_ipi, recipient);
-	}
-
-	return 0;
-}
-
-uintptr_t mcall_clear_ipi(void)
-{
-	// only clear SSIP if no other events are pending
-	if (HLS()->device_response_queue_head == NULL) {
-		clear_csr(mip, MIP_SSIP);
-		mb();
-	}
-
-	return atomic_swap(&HLS()->ipi_pending, 0);
-}
-
-#endif
-
-uintptr_t mcall_shutdown(void)
-{
-	while (1) write_csr(mtohost, 1);
-	return 0;
-}
-
-uintptr_t mcall_set_timer(unsigned long long when)
-{
-	write_csr(mtimecmp, when);
-	clear_csr(mip, MIP_STIP);
-	set_csr(mie, MIP_MTIP);
-	return 0;
-}
-
-#if 0
-uintptr_t mcall_dev_req(sbi_device_message *m)
-{
-	if ((m->dev > 0xFFU) | (m->cmd > 0xFFU) | (m->data > 0x0000FFFFFFFFFFFFU)) return -EINVAL;
-
-	while (swap_csr(mtohost, TOHOST_CMD(m->dev, m->cmd, m->data)) != 0);
-
-	m->sbi_private_data = (uintptr_t)HLS()->device_request_queue_head;
-	HLS()->device_request_queue_head = m;
-	HLS()->device_request_queue_size++;
-
-	return 0;
-}
-#endif
-uintptr_t mcall_dev_resp(void)
-{
-	htif_interrupt(0, 0);
-
-	sbi_device_message* m = HLS()->device_response_queue_head;
-	if (m) {
-		//printm("resp %p\n", m);
-		sbi_device_message* next = (void*)atomic_read(&m->sbi_private_data);
-		HLS()->device_response_queue_head = next;
-		if (!next) {
-			HLS()->device_response_queue_tail = 0;
-
-			// only clear SSIP if no other events are pending
-			clear_csr(mip, MIP_SSIP);
-			mb();
-			if (HLS()->ipi_pending) set_csr(mip, MIP_SSIP);
-		}
-	}
-	return (uintptr_t)m;
-}
-
-uintptr_t mcall_hart_id(void)
-{
-	return HLS()->hart_id;
-}
-
-void hls_init(uint32_t hart_id)
-{
-	//memset(HLS(), 0, sizeof(*HLS()));
-	HLS()->hart_id = hart_id;
-}
-
-uintptr_t htif_interrupt(uintptr_t mcause, uintptr_t* regs) {
-	uintptr_t fromhost = swap_csr(mfromhost, 0);
-	if (!fromhost)
-	return 0;
-
-	uintptr_t dev = FROMHOST_DEV(fromhost);
-	uintptr_t cmd = FROMHOST_CMD(fromhost);
-	uintptr_t data = FROMHOST_DATA(fromhost);
-
-	sbi_device_message* m = HLS()->device_request_queue_head;
-	sbi_device_message* prev = 0x0;
-	unsigned long i, n;
-	for (i = 0, n = HLS()->device_request_queue_size; i < n; i++) {
-		/*
-		if (!supervisor_paddr_valid(m, sizeof(*m))
-		&& EXTRACT_FIELD(read_csr(mstatus), MSTATUS_PRV1) != PRV_M)
-		panic("htif: page fault");
-		*/
-
-		sbi_device_message* next = (void*)m->sbi_private_data;
-		if (m->dev == dev && m->cmd == cmd) {
-			m->data = data;
-
-			// dequeue from request queue
-			if (prev)
-			prev->sbi_private_data = (uintptr_t)next;
-			else
-			HLS()->device_request_queue_head = next;
-			HLS()->device_request_queue_size = n-1;
-			m->sbi_private_data = 0;
-
-			// enqueue to response queue
-			if (HLS()->device_response_queue_tail)
-			{
-				HLS()->device_response_queue_tail->sbi_private_data = (uintptr_t)m;
-			}
-			else
-			{
-				HLS()->device_response_queue_head = m;
-			}
-			HLS()->device_response_queue_tail = m;
-
-			// signal software interrupt
-			set_csr(mip, MIP_SSIP);
-			return 0;
-		}
-
-		prev = m;
-		m = (void*)atomic_read(&m->sbi_private_data);
-	}
-	//HLT();
-	return 0;
-	//panic("htif: no record");
-}
-
-uintptr_t mcall_console_putchar(uint8_t ch)
-{
-	while (swap_csr(mtohost, TOHOST_CMD(1, 1, ch)) != 0);
-	while (1) {
-		uintptr_t fromhost = read_csr(mfromhost);
-		if (FROMHOST_DEV(fromhost) != 1 || FROMHOST_CMD(fromhost) != 1) {
-		if (fromhost)
-		htif_interrupt(0, 0);
-		continue;
-	}
-	write_csr(mfromhost, 0);
-	break;
-	}
-	return 0;
-}
-
-void testPrint(void) {
-	/* Print a test command to check Spike console output */
-	mcall_console_putchar('h');
-	mcall_console_putchar('e');
-	mcall_console_putchar('l');
-	mcall_console_putchar('l');
-	mcall_console_putchar('o');
-	mcall_console_putchar('\n');
-}