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Code Issues Releases Activity

- Add the i386_memio_map_load() function to load I/O address table.

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- Add the bus_space_compare macro for bus_space consistency.
- Switch using the bus_space_map_load() in isa_load_resourcev().
This commit is contained in:
Yoshihiro Takahashi 2008-09-07 04:44:24 +00:00
parent ebd2b74476
commit 05165e3276
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=182836
3 changed files with 49 additions and 21 deletions
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23
sys/i386/isa/isa.c
View File

@ -203,28 +203,9 @@ isa_alloc_resourcev(device_t child, int type, int *rid,
int
isa_load_resourcev(struct resource *re, bus_addr_t *res, bus_size_t count)
{
bus_addr_t start;
bus_space_handle_t bh;
int i;
bh = rman_get_bushandle(re);
if (count > bh->bsh_maxiatsz) {
printf("isa_load_resourcev: map size too large\n");
return EINVAL;
}
start = rman_get_start(re);
for (i = 0; i < bh->bsh_maxiatsz; i++) {
if (i < count)
bh->bsh_iat[i] = start + res[i];
else
bh->bsh_iat[i] = start;
}
bh->bsh_iatsz = count;
bh->bsh_bam = rman_get_bustag(re)->bs_ra; /* relocate access */
return 0;
return bus_space_map_load(rman_get_bustag(re), rman_get_bushandle(re),
count, res, 0);
}
#endif /* PC98 */

22
sys/pc98/include/bus.h
View File

@ -92,7 +92,13 @@
#define BUS_SPACE_UNRESTRICTED (~0)
/*
* address relocation table
*/
#define BUS_SPACE_IAT_MAXSIZE 33
typedef bus_addr_t *bus_space_iat_t;
#define BUS_SPACE_IAT_SZ(IOTARRAY) (sizeof(IOTARRAY)/sizeof(bus_addr_t))
/*
* Access methods for bus resources and address space.
@ -223,6 +229,19 @@ void i386_memio_unmap(bus_space_tag_t t, bus_space_handle_t bsh,
#define bus_space_unmap(t, h, s) \
i386_memio_unmap((t), (h), (s))
/*
* int bus_space_map_load (bus_space_tag_t t, bus_space_handle_t bsh,
* bus_size_t size, bus_space_iat_t iat, u_int flags);
*
* Load I/O address table of bus space.
*/
int i386_memio_map_load(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t size, bus_space_iat_t iat, u_int flags);
#define bus_space_map_load(t, h, s, iat, f) \
i386_memio_map_load((t), (h), (s), (iat), (f))
/*
* int bus_space_subregion (bus_space_tag_t t,
* bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
@ -260,6 +279,9 @@ void i386_memio_free(bus_space_tag_t t, bus_space_handle_t bsh,
int i386_memio_compare(bus_space_tag_t t1, bus_space_handle_t bsh1,
bus_space_tag_t t2, bus_space_handle_t bsh2);
#define bus_space_compare(t1, h1, t2, h2) \
i386_memio_compare((t1), (h1), (t2), (h2))
/*
* Access methods for bus resources and address space.
*/

25
sys/pc98/pc98/busiosubr.c
View File

@ -220,6 +220,31 @@ i386_memio_free(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
i386_memio_unmap(t, bsh, bsh->bsh_sz);
}
int
i386_memio_map_load(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t size, bus_space_iat_t iat, u_int flags __unused)
{
int i;
if (size > bsh->bsh_maxiatsz) {
printf("i386_memio_map_load: map size too large\n");
return EINVAL;
}
for (i = 0; i < bsh->bsh_maxiatsz; i++) {
if (i < size)
bsh->bsh_iat[i] = iat[i];
else
bsh->bsh_iat[i] = 0;
bsh->bsh_iat[i] += bsh->bsh_base;
}
bsh->bsh_iatsz = size;
bsh->bsh_bam = t->bs_ra; /* relocate access */
return 0;
}
int
i386_memio_subregion(bus_space_tag_t t, bus_space_handle_t pbsh,
bus_size_t offset, bus_size_t size,