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arm64: implement bs_sr_<N>

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Implement the bs_sr_<N> generic functions based on the generic
mips implementation calling the generic bs_w_<N> functions in a loop.

ral(4) (rt2860.c) panics in RAL_SET_REGION_4() because bs_sr_4()
is NULL.  It seems ral(4) and ti(4) might be the only consumers of
these functions I could find quickly so keeping them in C rather than asm.

Reported by:	Steve Wheeler (https://redmine.pfsense.org/issues/11021)
Reviewed by:	mmel
MFC after:	3 days
This commit is contained in:
Bjoern A. Zeeb 2020-11-04 12:11:50 +00:00
parent 60ec31e93f
commit 4ceeb398bf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=367327
1 changed files with 48 additions and 4 deletions
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52
sys/arm64/arm64/bus_machdep.c
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@ -128,6 +128,50 @@ generic_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset,
return (0);
}
/*
* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
* by tag/handle starting at `offset'.
*/
static void
generic_bs_sr_1(void *t, bus_space_handle_t bsh,
bus_size_t offset, uint8_t value, size_t count)
{
bus_addr_t addr = bsh + offset;
for (; count != 0; count--, addr++)
generic_bs_w_1(t, bsh, addr, value);
}
static void
generic_bs_sr_2(void *t, bus_space_handle_t bsh,
bus_size_t offset, uint16_t value, size_t count)
{
bus_addr_t addr = bsh + offset;
for (; count != 0; count--, addr += 2)
generic_bs_w_2(t, bsh, addr, value);
}
static void
generic_bs_sr_4(void *t, bus_space_handle_t bsh,
bus_size_t offset, uint32_t value, size_t count)
{
bus_addr_t addr = bsh + offset;
for (; count != 0; count--, addr += 4)
generic_bs_w_4(t, bsh, addr, value);
}
static void
generic_bs_sr_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
uint64_t value, size_t count)
{
bus_addr_t addr = bsh + offset;
for (; count != 0; count--, addr += 8)
generic_bs_w_8(t, bsh, addr, value);
}
struct bus_space memmap_bus = {
/* cookie */
.bs_cookie = NULL,
@ -187,10 +231,10 @@ struct bus_space memmap_bus = {
.bs_sm_8 = NULL,
/* set region */
.bs_sr_1 = NULL,
.bs_sr_2 = NULL,
.bs_sr_4 = NULL,
.bs_sr_8 = NULL,
.bs_sr_1 = generic_bs_sr_1,
.bs_sr_2 = generic_bs_sr_2,
.bs_sr_4 = generic_bs_sr_4,
.bs_sr_8 = generic_bs_sr_8,
/* copy */
.bs_c_1 = NULL,