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target/arc: Introduce L1I,L1D,L2 caches support

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With this commit we introduce L1 and L2 cache
flush and invalidate operations which are necessary for
getting/setting actual data during memory r/w operations.

We introduce L2 cache support, which is not presented
on currently support EMSK board. But L2 is presented
on HSDK board, which soon will be introduced.

Change-Id: I2fda505a47ecb8833cc9f5ffe24f6a4e22ab6eb0
Signed-off-by: Evgeniy Didin <didin@synopsys.com>
Reviewed-on: http://openocd.zylin.com/5688
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Evgeniy Didin
2020-05-15 23:04:01 +03:00
committed by Antonio Borneo
parent 2e6904eef5
commit 057aed11a2
4 changed files with 328 additions and 5 deletions
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59
src/target/arc_cmd.c
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@@ -909,10 +909,60 @@ static int jim_arc_get_reg_field(Jim_Interp *interp, int argc, Jim_Obj * const *
return JIM_OK;
}
COMMAND_HANDLER(arc_l1_cache_disable_auto_cmd)
{
bool value;
int retval = 0;
struct arc_common *arc = target_to_arc(get_current_target(CMD_CTX));
retval = CALL_COMMAND_HANDLER(handle_command_parse_bool,
&value, "target has caches enabled");
arc->has_l2cache = value;
arc->has_dcache = value;
arc->has_icache = value;
return retval;
}
COMMAND_HANDLER(arc_l2_cache_disable_auto_cmd)
{
struct arc_common *arc = target_to_arc(get_current_target(CMD_CTX));
return CALL_COMMAND_HANDLER(handle_command_parse_bool,
&arc->has_l2cache, "target has l2 cache enabled");
}
/* ----- Exported target commands ------------------------------------------ */
const struct command_registration arc_l2_cache_group_handlers[] = {
{
.name = "auto",
.handler = arc_l2_cache_disable_auto_cmd,
.mode = COMMAND_ANY,
.usage = "(1|0)",
.help = "Disable or enable L2",
},
COMMAND_REGISTRATION_DONE
};
const struct command_registration arc_cache_group_handlers[] = {
{
.name = "auto",
.handler = arc_l1_cache_disable_auto_cmd,
.mode = COMMAND_ANY,
.help = "Disable or enable L1",
.usage = "(1|0)",
},
{
.name = "l2",
.mode = COMMAND_ANY,
.help = "L2 cache command group",
.usage = "",
.chain = arc_l2_cache_group_handlers,
},
COMMAND_REGISTRATION_DONE
};
static const struct command_registration arc_core_command_handlers[] = {
{
{
.name = "add-reg-type-flags",
.jim_handler = jim_arc_add_reg_type_flags,
.mode = COMMAND_CONFIG,
@@ -967,6 +1017,13 @@ static const struct command_registration arc_core_command_handlers[] = {
.usage = "",
.chain = arc_jtag_command_group,
},
{
.name = "cache",
.mode = COMMAND_ANY,
.help = "cache command group",
.usage = "",
.chain = arc_cache_group_handlers,
},
COMMAND_REGISTRATION_DONE
};