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drop from segments physcopy/vircopy invocations

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. sys_vircopy always uses D for both src and dst
	. sys_physcopy uses PHYS_SEG if and only if corresponding
	  endpoint is NONE, so we can derive the mode (PHYS_SEG or D)
	  from the endpoint arg in the kernel, dropping the seg args
	. fields in msg still filled in for backwards compatability,
	  using same NONE-logic in the library
This commit is contained in:
Ben Gras
2012-06-16 17:29:37 +00:00
parent 0e35eb0c6b
commit 0fb2f83da9
17 changed files with 62 additions and 64 deletions
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14
lib/libsys/sys_physcopy.c
View File

@@ -1,12 +1,9 @@
#include "syslib.h"
int sys_physcopy(src_proc, src_seg, src_vir,
dst_proc, dst_seg, dst_vir, bytes)
int sys_physcopy(src_proc, src_vir, dst_proc, dst_vir, bytes)
endpoint_t src_proc; /* source process */
int src_seg; /* source memory segment */
vir_bytes src_vir; /* source virtual address */
endpoint_t dst_proc; /* destination process */
int dst_seg; /* destination memory segment */
vir_bytes dst_vir; /* destination virtual address */
phys_bytes bytes; /* how many bytes */
{
@@ -20,11 +17,16 @@ phys_bytes bytes; /* how many bytes */
if (bytes == 0L) return(OK);
copy_mess.CP_SRC_ENDPT = src_proc;
copy_mess.CP_SRC_SPACE = src_seg;
copy_mess.CP_SRC_ADDR = (long) src_vir;
copy_mess.CP_DST_ENDPT = dst_proc;
copy_mess.CP_DST_SPACE = dst_seg;
copy_mess.CP_DST_ADDR = (long) dst_vir;
copy_mess.CP_NR_BYTES = (long) bytes;
/* provide backwards compatability arguments to old
* kernels based on process id's; NONE <=> physical
*/
copy_mess.CP_DST_SPACE_OBSOLETE = (dst_proc == NONE ? PHYS_SEG : D);
copy_mess.CP_SRC_SPACE_OBSOLETE = (src_proc == NONE ? PHYS_SEG : D);
return(_kernel_call(SYS_PHYSCOPY, &copy_mess));
}

2
lib/libsys/sys_umap.c
View File

@@ -14,7 +14,7 @@ phys_bytes *phys_addr; /* placeholder for result */
int result;
m.CP_SRC_ENDPT = proc_ep;
m.CP_SRC_SPACE = seg;
m.UMAP_SEG = seg;
m.CP_SRC_ADDR = vir_addr;
m.CP_NR_BYTES = bytes;

2
lib/libsys/sys_umap_remote.c
View File

@@ -24,7 +24,7 @@ phys_bytes *phys_addr; /* placeholder for result */
m.CP_SRC_ENDPT = proc_ep;
m.CP_DST_ENDPT = grantee;
m.CP_SRC_SPACE = seg;
m.UMAP_SEG = seg;
m.CP_SRC_ADDR = vir_addr;
m.CP_NR_BYTES = bytes;

13
lib/libsys/sys_vircopy.c
View File

@@ -1,12 +1,10 @@
#include "syslib.h"
int sys_vircopy(src_proc, src_seg, src_vir,
dst_proc, dst_seg, dst_vir, bytes)
int sys_vircopy(src_proc, src_vir,
dst_proc, dst_vir, bytes)
endpoint_t src_proc; /* source process */
int src_seg; /* source memory segment */
vir_bytes src_vir; /* source virtual address */
endpoint_t dst_proc; /* destination process */
int dst_seg; /* destination memory segment */
vir_bytes dst_vir; /* destination virtual address */
phys_bytes bytes; /* how many bytes */
{
@@ -19,11 +17,14 @@ phys_bytes bytes; /* how many bytes */
if (bytes == 0L) return(OK);
copy_mess.CP_SRC_ENDPT = src_proc;
copy_mess.CP_SRC_SPACE = src_seg;
copy_mess.CP_SRC_ADDR = (long) src_vir;
copy_mess.CP_DST_ENDPT = dst_proc;
copy_mess.CP_DST_SPACE = dst_seg;
copy_mess.CP_DST_ADDR = (long) dst_vir;
copy_mess.CP_NR_BYTES = (long) bytes;
/* backwards compatability D segs */
copy_mess.CP_DST_SPACE_OBSOLETE = D;
copy_mess.CP_SRC_SPACE_OBSOLETE = D;
return(_kernel_call(SYS_VIRCOPY, &copy_mess));
}