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[CELL] spufs: change decrementer restore timing 

The SPU decrementer should be restored after the LSCSA DMA has
completed.

Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This commit is contained in:
Masato Noguchi 2007-07-20 21:39:41 +02:00 committed by Arnd Bergmann
parent cf17df223c
commit ca53da3abb
2 changed files with 20 additions and 20 deletions
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4
arch/powerpc/platforms/cell/spufs/spu_restore.c
View File

@ -84,7 +84,7 @@ static inline void restore_decr(void)
unsigned int decr_running; unsigned int decr_running;
unsigned int decr; unsigned int decr;
/* Restore, Step 6: /* Restore, Step 6(moved):
* If the LSCSA "decrementer running" flag is set * If the LSCSA "decrementer running" flag is set
* then write the SPU_WrDec channel with the * then write the SPU_WrDec channel with the
* decrementer value from LSCSA. * decrementer value from LSCSA.
@ -318,10 +318,10 @@ int main()
build_dma_list(lscsa_ea); /* Step 3. */ build_dma_list(lscsa_ea); /* Step 3. */
restore_upper_240kb(lscsa_ea); /* Step 4. */ restore_upper_240kb(lscsa_ea); /* Step 4. */
/* Step 5: done by 'exit'. */ /* Step 5: done by 'exit'. */
restore_decr(); /* Step 6. */
enqueue_putllc(lscsa_ea); /* Step 7. */ enqueue_putllc(lscsa_ea); /* Step 7. */
set_tag_update(); /* Step 8. */ set_tag_update(); /* Step 8. */
read_tag_status(); /* Step 9. */ read_tag_status(); /* Step 9. */
restore_decr(); /* moved Step 6. */
read_llar_status(); /* Step 10. */ read_llar_status(); /* Step 10. */
write_ppu_mb(); /* Step 11. */ write_ppu_mb(); /* Step 11. */
write_ppuint_mb(); /* Step 12. */ write_ppuint_mb(); /* Step 12. */

36
arch/powerpc/platforms/cell/spufs/spu_restore_dump.h_shipped
View File

@ -93,26 +93,21 @@ static unsigned int spu_restore_code[] __attribute__((__aligned__(128))) = {
0x18020204, 0x18020204,
0x24000282, 0x24000282,
0x217ffa09, 0x217ffa09,
0x04000403, 0x04000402,
0x21a00803, 0x21a00802,
0x3fbe0502, 0x3fbe0504,
0x3fe30102, 0x3fe30204,
0x04000105, 0x21a00884,
0x21a00885,
0x42074002, 0x42074002,
0x21a00902, 0x21a00902,
0x40803c03, 0x40803c03,
0x21a00983, 0x21a00983,
0x04000484, 0x04000485,
0x21a00a04, 0x21a00a05,
0x40802202, 0x40802202,
0x21a00a82, 0x21a00a82,
0x30809c03, 0x21a00805,
0x34000182, 0x21a00884,
0x14004102,
0x21002782,
0x21a00804,
0x21a00885,
0x3fbf0582, 0x3fbf0582,
0x3f200102, 0x3f200102,
0x3fbe0102, 0x3fbe0102,
@ -120,13 +115,17 @@ static unsigned int spu_restore_code[] __attribute__((__aligned__(128))) = {
0x21a00902, 0x21a00902,
0x40804003, 0x40804003,
0x21a00983, 0x21a00983,
0x21a00a04, 0x21a00a05,
0x40805a02, 0x40805a02,
0x21a00a82, 0x21a00a82,
0x40800083, 0x40800083,
0x21a00b83, 0x21a00b83,
0x01a00c02, 0x01a00c02,
0x01a00d84, 0x30809c03,
0x34000182,
0x14004102,
0x21002082,
0x01a00d82,
0x3080a003, 0x3080a003,
0x34000182, 0x34000182,
0x21a00e02, 0x21a00e02,
@ -145,9 +144,10 @@ static unsigned int spu_restore_code[] __attribute__((__aligned__(128))) = {
0x3080aa03, 0x3080aa03,
0x34000182, 0x34000182,
0x21a00b02, 0x21a00b02,
0x4020007f,
0x3080ae02, 0x3080ae02,
0x3080ac04,
0x42004805, 0x42004805,
0x3080ac04,
0x34000103, 0x34000103,
0x34000202, 0x34000202,
0x1cffc183, 0x1cffc183,
@ -193,7 +193,7 @@ static unsigned int spu_restore_code[] __attribute__((__aligned__(128))) = {
0x34000182, 0x34000182,
0x21a00382, 0x21a00382,
0x4020007f, 0x4020007f,
0x327fd700, 0x327fde00,
0x409ffe02, 0x409ffe02,
0x30801203, 0x30801203,
0x40800206, 0x40800206,