openkylin
/
qemu
mirror of https://gitee.com/openkylin/qemu.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

omap: remove L4_MUX_HACK 

This was introduced apparently to overcome a limitation on the number of
cpu_register_io_memory() calls.  477b24ef91 (July 2008) removed use
of the hack, but retained the code.  This patch removes the code as well.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andrzej Zaborowski <balrogg@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-11-23 14:06:31 +02:00
parent aee39503df
commit 92c0bba9a9
2 changed files with 0 additions and 121 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
hw/omap.h
View File

@ -1127,7 +1127,4 @@ inline static int debug_register_io_memory(CPUReadMemoryFunc * const *mem_read,
# define cpu_register_io_memory debug_register_io_memory
# endif
/* Define when we want to reduce the number of IO regions registered. */
/*# define L4_MUX_HACK*/
#endif /* hw_omap_h */

118
hw/omap_l4.c
View File

@ -20,89 +20,6 @@
#include "hw.h"
#include "omap.h"
#ifdef L4_MUX_HACK
static int omap_l4_io_entries;
static int omap_cpu_io_entry;
static struct omap_l4_entry {
CPUReadMemoryFunc * const *mem_read;
CPUWriteMemoryFunc * const *mem_write;
void *opaque;
} *omap_l4_io_entry;
static CPUReadMemoryFunc * const *omap_l4_io_readb_fn;
static CPUReadMemoryFunc * const *omap_l4_io_readh_fn;
static CPUReadMemoryFunc * const *omap_l4_io_readw_fn;
static CPUWriteMemoryFunc * const *omap_l4_io_writeb_fn;
static CPUWriteMemoryFunc * const *omap_l4_io_writeh_fn;
static CPUWriteMemoryFunc * const *omap_l4_io_writew_fn;
static void **omap_l4_io_opaque;
int l4_register_io_memory(CPUReadMemoryFunc * const *mem_read,
CPUWriteMemoryFunc * const *mem_write, void *opaque)
{
omap_l4_io_entry[omap_l4_io_entries].mem_read = mem_read;
omap_l4_io_entry[omap_l4_io_entries].mem_write = mem_write;
omap_l4_io_entry[omap_l4_io_entries].opaque = opaque;
return omap_l4_io_entries ++;
}
static uint32_t omap_l4_io_readb(void *opaque, target_phys_addr_t addr)
{
unsigned int i = (addr - OMAP2_L4_BASE) >> TARGET_PAGE_BITS;
return omap_l4_io_readb_fn[i](omap_l4_io_opaque[i], addr);
}
static uint32_t omap_l4_io_readh(void *opaque, target_phys_addr_t addr)
{
unsigned int i = (addr - OMAP2_L4_BASE) >> TARGET_PAGE_BITS;
return omap_l4_io_readh_fn[i](omap_l4_io_opaque[i], addr);
}
static uint32_t omap_l4_io_readw(void *opaque, target_phys_addr_t addr)
{
unsigned int i = (addr - OMAP2_L4_BASE) >> TARGET_PAGE_BITS;
return omap_l4_io_readw_fn[i](omap_l4_io_opaque[i], addr);
}
static void omap_l4_io_writeb(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
unsigned int i = (addr - OMAP2_L4_BASE) >> TARGET_PAGE_BITS;
return omap_l4_io_writeb_fn[i](omap_l4_io_opaque[i], addr, value);
}
static void omap_l4_io_writeh(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
unsigned int i = (addr - OMAP2_L4_BASE) >> TARGET_PAGE_BITS;
return omap_l4_io_writeh_fn[i](omap_l4_io_opaque[i], addr, value);
}
static void omap_l4_io_writew(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
unsigned int i = (addr - OMAP2_L4_BASE) >> TARGET_PAGE_BITS;
return omap_l4_io_writew_fn[i](omap_l4_io_opaque[i], addr, value);
}
static CPUReadMemoryFunc * const omap_l4_io_readfn[] = {
omap_l4_io_readb,
omap_l4_io_readh,
omap_l4_io_readw,
};
static CPUWriteMemoryFunc * const omap_l4_io_writefn[] = {
omap_l4_io_writeb,
omap_l4_io_writeh,
omap_l4_io_writew,
};
#else
int l4_register_io_memory(CPUReadMemoryFunc * const *mem_read,
CPUWriteMemoryFunc * const *mem_write,
void *opaque)
@ -110,7 +27,6 @@ int l4_register_io_memory(CPUReadMemoryFunc * const *mem_read,
return cpu_register_io_memory(mem_read, mem_write, opaque,
DEVICE_NATIVE_ENDIAN);
}
#endif
struct omap_l4_s {
target_phys_addr_t base;
@ -126,23 +42,6 @@ struct omap_l4_s *omap_l4_init(target_phys_addr_t base, int ta_num)
bus->ta_num = ta_num;
bus->base = base;
#ifdef L4_MUX_HACK
omap_l4_io_entries = 1;
omap_l4_io_entry = g_malloc0(125 * sizeof(*omap_l4_io_entry));
omap_cpu_io_entry =
cpu_register_io_memory(omap_l4_io_readfn,
omap_l4_io_writefn, bus, DEVICE_NATIVE_ENDIAN);
# define L4_PAGES (0xb4000 / TARGET_PAGE_SIZE)
omap_l4_io_readb_fn = g_malloc0(sizeof(void *) * L4_PAGES);
omap_l4_io_readh_fn = g_malloc0(sizeof(void *) * L4_PAGES);
omap_l4_io_readw_fn = g_malloc0(sizeof(void *) * L4_PAGES);
omap_l4_io_writeb_fn = g_malloc0(sizeof(void *) * L4_PAGES);
omap_l4_io_writeh_fn = g_malloc0(sizeof(void *) * L4_PAGES);
omap_l4_io_writew_fn = g_malloc0(sizeof(void *) * L4_PAGES);
omap_l4_io_opaque = g_malloc0(sizeof(void *) * L4_PAGES);
#endif
return bus;
}
@ -245,9 +144,6 @@ target_phys_addr_t omap_l4_attach(struct omap_target_agent_s *ta, int region,
{
target_phys_addr_t base;
ssize_t size;
#ifdef L4_MUX_HACK
int i;
#endif
if (region < 0 || region >= ta->regions) {
fprintf(stderr, "%s: bad io region (%i)\n", __FUNCTION__, region);
@ -257,21 +153,7 @@ target_phys_addr_t omap_l4_attach(struct omap_target_agent_s *ta, int region,
base = ta->bus->base + ta->start[region].offset;
size = ta->start[region].size;
if (iotype) {
#ifndef L4_MUX_HACK
cpu_register_physical_memory(base, size, iotype);
#else
cpu_register_physical_memory(base, size, omap_cpu_io_entry);
i = (base - ta->bus->base) / TARGET_PAGE_SIZE;
for (; size > 0; size -= TARGET_PAGE_SIZE, i ++) {
omap_l4_io_readb_fn[i] = omap_l4_io_entry[iotype].mem_read[0];
omap_l4_io_readh_fn[i] = omap_l4_io_entry[iotype].mem_read[1];
omap_l4_io_readw_fn[i] = omap_l4_io_entry[iotype].mem_read[2];
omap_l4_io_writeb_fn[i] = omap_l4_io_entry[iotype].mem_write[0];
omap_l4_io_writeh_fn[i] = omap_l4_io_entry[iotype].mem_write[1];
omap_l4_io_writew_fn[i] = omap_l4_io_entry[iotype].mem_write[2];
omap_l4_io_opaque[i] = omap_l4_io_entry[iotype].opaque;
}
#endif
}
return base;