Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=cfd529b25d9b1d48423b85d76066348e2459e646
Commit: cfd529b25d9b1d48423b85d76066348e2459e646
Parent: daced0f718b92b0bcdb9790622c255d4660f51ce
Author: Masato Noguchi <[EMAIL PROTECTED]>
AuthorDate: Fri Jul 20 21:39:36 2007 +0200
Committer: Arnd Bergmann <[EMAIL PROTECTED]>
CommitDate: Fri Jul 20 21:41:54 2007 +0200
[CELL] spufs: remove needless context save/restore code
The following steps are not needed in the SPE context save/restore
paths:
Save Step 12: save_mfc_decr()
save suspend_time to CSA (It will be done by step 14)
save ch 7 (decrementer value will be saved in LSCSA by spe-side step 10)
Restore Step 59: restore_ch_part1()
restore ch 1 (it will be done by spe-side step 15)
This change removes the unnecessary steps.
Signed-off-by: Masato Noguchi <[EMAIL PROTECTED]>
Signed-off-by: Jeremy Kerr <[EMAIL PROTECTED]>
Signed-off-by: Arnd Bergmann <[EMAIL PROTECTED]>
---
arch/powerpc/platforms/cell/spufs/switch.c | 12 +-----------
1 files changed, 1 insertions(+), 11 deletions(-)
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c
b/arch/powerpc/platforms/cell/spufs/switch.c
index 861336e..a08fe93 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -253,11 +253,6 @@ static inline void save_mfc_decr(struct spu_state *csa,
struct spu *spu)
*/
if (in_be64(&priv2->mfc_control_RW) & MFC_CNTL_DECREMENTER_RUNNING) {
csa->priv2.mfc_control_RW |= MFC_CNTL_DECREMENTER_RUNNING;
- csa->suspend_time = get_cycles();
- out_be64(&priv2->spu_chnlcntptr_RW, 7ULL);
- eieio();
- csa->spu_chnldata_RW[7] = in_be64(&priv2->spu_chnldata_RW);
- eieio();
} else {
csa->priv2.mfc_control_RW &= ~MFC_CNTL_DECREMENTER_RUNNING;
}
@@ -1567,13 +1562,8 @@ static inline void restore_ch_part1(struct spu_state
*csa, struct spu *spu)
int i;
/* Restore, Step 59:
+ * Restore the following CH: [0,3,4,24,25,27]
*/
-
- /* Restore CH 1 without count */
- out_be64(&priv2->spu_chnlcntptr_RW, 1);
- out_be64(&priv2->spu_chnldata_RW, csa->spu_chnldata_RW[1]);
-
- /* Restore the following CH: [0,3,4,24,25,27] */
for (i = 0; i < ARRAY_SIZE(ch_indices); i++) {
idx = ch_indices[i];
out_be64(&priv2->spu_chnlcntptr_RW, idx);
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
