diff options
Diffstat (limited to 'cpu/bf533/flush.S')
| -rw-r--r-- | cpu/bf533/flush.S | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/cpu/bf533/flush.S b/cpu/bf533/flush.S index 1f9ec98..9fbdefc 100644 --- a/cpu/bf533/flush.S +++ b/cpu/bf533/flush.S @@ -60,7 +60,7 @@ ENTRY(icplb_flush) [--SP] = LC1; [--SP] = LT1; [--SP] = LB1; - + /* If it's a 1K or 4K page, then it's quickest to * just systematically flush all the addresses in * the page, regardless of whether they're in the @@ -90,7 +90,7 @@ ENTRY(icplb_flush) R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/ R3.H = R4.L << 0 ; /* Save in extraction pattern for later deposit.*/ - + /* So: * R0 = Page start * R1 = Page length (actually, offset into size/prefix tables) @@ -101,7 +101,7 @@ ENTRY(icplb_flush) * sub-bank, looking for dirty, valid tags that match our * address prefix. */ - + P5.L = (ITEST_COMMAND & 0xFFFF); P5.H = (ITEST_COMMAND >> 16); P4.L = (ITEST_DATA0 & 0xFFFF); @@ -119,7 +119,7 @@ ENTRY(icplb_flush) * fetching tags, so we only have to set Set, Bank, * Sub-bank and Way. */ - + P2 = 4; LSETUP (ifs1, ife1) LC1 = P2; ifs1: P0 = 32; /* iterate over all sets*/ @@ -142,7 +142,7 @@ ifs0: R6 = R5 << 5; /* Combine set*/ IF !CC JUMP ifskip; /* Skip it if it doesn't match.*/ /* Tag address matches against page, so this is an entry - * we must flush. + * we must flush. */ R7 >>= 10; /* Mask off the non-address bits*/ @@ -181,11 +181,11 @@ iflush_whole_page: IFLUSH [P0++]; /* because CSYNC can't end loops.*/ LSETUP (isall, ieall) LC0 = P1; isall:IFLUSH [P0++]; -ieall: NOP; +ieall: NOP; SSYNC; JUMP ifinished; -/* This is an external function being called by the user +/* This is an external function being called by the user * application through __flush_cache_all. Currently this function * serves the purpose of flushing all the pending writes in * in the data cache. @@ -222,7 +222,7 @@ skip: R6 += -1; /* This is an internal function to flush all pending * writes in the cache associated with a particular DCPLB. - * + * * R0 - page's start address * R1 - CPLB's data field. */ @@ -236,7 +236,7 @@ ENTRY(dcplb_flush) [--SP] = LC1; [--SP] = LT1; [--SP] = LB1; - + /* If it's a 1K or 4K page, then it's quickest to * just systematically flush all the addresses in * the page, regardless of whether they're in the @@ -250,9 +250,9 @@ ENTRY(dcplb_flush) /* We're only interested in the page's size, so extract * this from the CPLB (bits 17:16), and scale to give an - * offset into the page_size and page_prefix tables. + * offset into the page_size and page_prefix tables. */ - + R1 <<= 14; R1 >>= 30; R1 <<= 2; @@ -260,9 +260,9 @@ ENTRY(dcplb_flush) /* The page could be mapped into Bank A or Bank B, depending * on (a) whether both banks are configured as cache, and * (b) on whether address bit A[x] is set. x is determined - * by DCBS in DMEM_CONTROL + * by DCBS in DMEM_CONTROL */ - + R2 = 0; /* Default to Bank A (Bank B would be 1)*/ P0.L = (DMEM_CONTROL & 0xFFFF); @@ -303,7 +303,7 @@ bank_chosen: * sub-bank, looking for dirty, valid tags that match our * address prefix. */ - + P5.L = (DTEST_COMMAND & 0xFFFF); P5.H = (DTEST_COMMAND >> 16); P4.L = (DTEST_DATA0 & 0xFFFF); @@ -322,7 +322,7 @@ bank_chosen: * fetching tags, so we only have to set Set, Bank, * Sub-bank and Way. */ - + P2 = 2; LSETUP (fs1, fe1) LC1 = P2; fs1: P0 = 64; /* iterate over all sets*/ |