96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
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#include "pm.h"
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#include <minix/com.h>
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#include <minix/callnr.h>
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#include <minix/type.h>
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#include <minix/config.h>
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#include <minix/vm.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#include <archconst.h>
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#include "mproc.h"
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/*===========================================================================*
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* do_adddma *
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*===========================================================================*/
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PUBLIC int do_adddma()
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{
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endpoint_t req_proc_e, target_proc_e;
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int proc_n, r;
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phys_bytes base, size;
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struct mproc *rmp;
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if (mp->mp_effuid != SUPER_USER)
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return EPERM;
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req_proc_e= m_in.m_source;
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target_proc_e= m_in.m2_i1;
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base= m_in.m2_l1;
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size= m_in.m2_l2;
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if((r = vm_adddma(req_proc_e, target_proc_e, base, size)) != OK) {
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printf("pm:do_adddma: vm_adddma failed (%d)\n", r);
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return r;
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}
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/* Find target process */
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if (pm_isokendpt(target_proc_e, &proc_n) != OK)
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{
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printf("pm:do_adddma: endpoint %d not found\n", target_proc_e);
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return EINVAL;
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}
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rmp= &mproc[proc_n];
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rmp->mp_flags |= HAS_DMA;
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return OK;
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}
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/*===========================================================================*
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* do_deldma *
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*===========================================================================*/
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PUBLIC int do_deldma()
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{
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endpoint_t req_proc_e, target_proc_e;
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phys_bytes base, size;
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if (mp->mp_effuid != SUPER_USER)
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return EPERM;
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req_proc_e= m_in.m_source;
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target_proc_e= m_in.m2_i1;
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base= m_in.m2_l1;
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size= m_in.m2_l2;
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return vm_deldma(req_proc_e, target_proc_e, base, size);
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}
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/*===========================================================================*
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* do_getdma *
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*===========================================================================*/
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PUBLIC int do_getdma()
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{
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endpoint_t req_proc_e, proc;
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int r;
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phys_bytes base, size;
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if (mp->mp_effuid != SUPER_USER)
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return EPERM;
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req_proc_e= m_in.m_source;
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if((r=vm_getdma(req_proc_e, &proc, &base, &size)) != OK)
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return r;
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printf("pm:do_getdma: setting reply to 0x%lx@0x%lx proc %d\n",
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size, base, proc);
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mp->mp_reply.m2_i1= proc;
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mp->mp_reply.m2_l1= base;
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mp->mp_reply.m2_l2= size;
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return OK;
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}
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