diff options
| author | Eugeniy Paltsev | 2018-03-21 15:58:55 +0300 |
|---|---|---|
| committer | Alexey Brodkin | 2018-03-21 17:06:54 +0300 |
| commit | ea9f6f1e873cc1b6fe220e1017357532045ce988 (patch) | |
| tree | 0b50dcfc17a14a6d48a7e03536a18ac4829b26e8 /arch/arc/lib | |
| parent | 05c6a26a04c4bddc62d2c307b754ccc81878b303 (diff) | |
ARC: Cache: Move SLC status check into slc_entire_op() and slc_rgn_op()
As of today we check SLC status before each call of __slc_rgn_op()
or __slc_entire_op(). So move status check into __slc_rgn_op()
and __slc_entire_op().
As we need to check status before *each* function execution and we
call slc_entire_op() and slc_rgn_op() from different places we add
this check directly into SLC entire/line functions instead of
their callers to avoid code duplication.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Diffstat (limited to 'arch/arc/lib')
| -rw-r--r-- | arch/arc/lib/cache.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/arch/arc/lib/cache.c b/arch/arc/lib/cache.c index 354dbc600ed..f147674ae84 100644 --- a/arch/arc/lib/cache.c +++ b/arch/arc/lib/cache.c @@ -141,6 +141,9 @@ static void __slc_entire_op(const int op) { unsigned int ctrl; + if (!slc_exists) + return; + ctrl = read_aux_reg(ARC_AUX_SLC_CTRL); if (!(op & OP_FLUSH)) /* i.e. OP_INV */ @@ -179,6 +182,9 @@ static void __slc_rgn_op(unsigned long paddr, unsigned long sz, const int op) unsigned int ctrl; unsigned long end; + if (!slc_exists) + return; + /* * The Region Flush operation is specified by CTRL.RGN_OP[11..9] * - b'000 (default) is Flush, @@ -366,7 +372,7 @@ void invalidate_icache_all(void) { __ic_entire_invalidate(); - if (is_isa_arcv2() && slc_exists) + if (is_isa_arcv2()) __slc_entire_op(OP_INV); } @@ -487,7 +493,7 @@ void invalidate_dcache_range(unsigned long start, unsigned long end) if (!is_isa_arcv2() || !ioc_exists) __dc_line_op(start, end - start, OP_INV); - if (is_isa_arcv2() && slc_exists && !ioc_exists) + if (is_isa_arcv2() && !ioc_exists) __slc_rgn_op(start, end - start, OP_INV); } @@ -504,7 +510,7 @@ void flush_dcache_range(unsigned long start, unsigned long end) if (!is_isa_arcv2() || !ioc_exists) __dc_line_op(start, end - start, OP_FLUSH); - if (is_isa_arcv2() && slc_exists && !ioc_exists) + if (is_isa_arcv2() && !ioc_exists) __slc_rgn_op(start, end - start, OP_FLUSH); } @@ -523,7 +529,7 @@ void flush_n_invalidate_dcache_all(void) { __dc_entire_op(OP_FLUSH_N_INV); - if (is_isa_arcv2() && slc_exists) + if (is_isa_arcv2()) __slc_entire_op(OP_FLUSH_N_INV); } @@ -531,6 +537,6 @@ void flush_dcache_all(void) { __dc_entire_op(OP_FLUSH); - if (is_isa_arcv2() && slc_exists) + if (is_isa_arcv2()) __slc_entire_op(OP_FLUSH); } |