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gru: fixes to grudump utility

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Minor fixes to the SGI GRU grudump facility:
	- fix address where user data is written
	- add gru number to data passed to user
	- indicate if context is locked

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jack Steiner 2009-06-17 16:28:34 -07:00 committed by Linus Torvalds
parent 1926ee85a9
commit 2b702b28ad
2 changed files with 8 additions and 4 deletions
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8
drivers/misc/sgi-gru/grukdump.c
View File

@ -26,7 +26,7 @@
static int gru_user_copy_handle(void __user **dp, void *s)
{
if (copy_to_user(dp, s, GRU_HANDLE_BYTES))
if (copy_to_user(*dp, s, GRU_HANDLE_BYTES))
return -1;
*dp += GRU_HANDLE_BYTES;
return 0;
@ -109,7 +109,7 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum,
{
struct gru_dump_context_header hdr;
struct gru_dump_context_header __user *uhdr = ubuf;
struct gru_context_configuration_handle *cch;
struct gru_context_configuration_handle *cch, *ubufcch;
struct gru_thread_state *gts;
int try, cch_locked, cbrcnt = 0, dsrcnt = 0, bytes = 0, ret = 0;
void *grubase;
@ -125,8 +125,11 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum,
}
ubuf += sizeof(hdr);
ubufcch = ubuf;
if (gru_user_copy_handle(&ubuf, cch))
goto fail;
if (cch_locked)
ubufcch->delresp = 0;
bytes = sizeof(hdr) + GRU_CACHE_LINE_BYTES;
if (cch_locked || !lock_cch) {
@ -155,6 +158,7 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum,
return ret;
hdr.magic = GRU_DUMP_MAGIC;
hdr.gid = gru->gs_gid;
hdr.ctxnum = ctxnum;
hdr.cbrcnt = cbrcnt;
hdr.dsrcnt = dsrcnt;

4
drivers/misc/sgi-gru/grulib.h
View File

@ -120,7 +120,7 @@ struct gru_flush_tlb_req {
enum {dcs_pid, dcs_gid};
struct gru_dump_chiplet_state_req {
unsigned int op;
int gid;
unsigned int gid;
int ctxnum;
char data_opt;
char lock_cch;
@ -134,7 +134,7 @@ struct gru_dump_chiplet_state_req {
#define GRU_DUMP_MAGIC 0x3474ab6c
struct gru_dump_context_header {
unsigned int magic;
unsigned char gid;
unsigned int gid;
unsigned char ctxnum;
unsigned char cbrcnt;
unsigned char dsrcnt;