add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/mips/kernel/vpe-mt.c
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@@ -92,12 +92,11 @@
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 	write_tc_c0_tchalt(read_tc_c0_tchalt() & ~TCHALT_H);
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 	/*
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-	 * The sde-kit passes 'memsize' to __start in $a3, so set something
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-	 * here...  Or set $a3 to zero and define DFLT_STACK_SIZE and
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-	 * DFLT_HEAP_SIZE when you compile your program
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+	 * We don't pass the memsize here, so VPE programs need to be
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+	 * compiled with DFLT_STACK_SIZE and DFLT_HEAP_SIZE defined.
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 	 */
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+	mttgpr(7, 0);
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 	mttgpr(6, v->ntcs);
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-	mttgpr(7, physical_memsize);
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 	/* set up VPE1 */
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 	/*
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@@ -313,7 +312,6 @@
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 static void vpe_device_release(struct device *cd)
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 {
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-	kfree(cd);
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 }
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 static struct class vpe_class = {
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@@ -497,6 +495,7 @@
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 	device_del(&vpe_device);
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 out_class:
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+	put_device(&vpe_device);
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 	class_unregister(&vpe_class);
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 out_chrdev:
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@@ -509,7 +508,7 @@
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 {
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 	struct vpe *v, *n;
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-	device_del(&vpe_device);
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+	device_unregister(&vpe_device);
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 	class_unregister(&vpe_class);
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 	unregister_chrdev(major, VPE_MODULE_NAME);
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