From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [6789] target-ppc: add support for reading/writing spefscr
Date: Mon, 09 Mar 2009 06:27:15 +0000 [thread overview]
Message-ID: <E1LgYxH-000868-4W@cvs.savannah.gnu.org> (raw)
Revision: 6789
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6789
Author: aurel32
Date: 2009-03-09 06:27:14 +0000 (Mon, 09 Mar 2009)
Log Message:
-----------
target-ppc: add support for reading/writing spefscr
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Modified Paths:
--------------
trunk/target-ppc/translate_init.c
Modified: trunk/target-ppc/translate_init.c
===================================================================
--- trunk/target-ppc/translate_init.c 2009-03-08 19:52:43 UTC (rev 6788)
+++ trunk/target-ppc/translate_init.c 2009-03-09 06:27:14 UTC (rev 6789)
@@ -448,6 +448,23 @@
}
#endif
+/* SPE specific registers */
+static void spr_read_spefscr (void *opaque, int gprn, int sprn)
+{
+ TCGv_i32 t0 = tcg_temp_new_i32();
+ tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, spe_fscr));
+ tcg_gen_extu_i32_tl(cpu_gpr[gprn], t0);
+ tcg_temp_free_i32(t0);
+}
+
+static void spr_write_spefscr (void *opaque, int sprn, int gprn)
+{
+ TCGv_i32 t0 = tcg_temp_new_i32();
+ tcg_gen_trunc_tl_i32(t0, cpu_gpr[gprn]);
+ tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, spe_fscr));
+ tcg_temp_free_i32(t0);
+}
+
#if !defined(CONFIG_USER_ONLY)
/* Callback used to write the exception vector base */
static void spr_write_excp_prefix (void *opaque, int sprn, int gprn)
@@ -2565,7 +2582,6 @@
* HSRR1 => SPR 315 (Power 2.04 hypv)
* LPCR => SPR 316 (970)
* LPIDR => SPR 317 (970)
- * SPEFSCR => SPR 512 (Power 2.04 emb)
* EPR => SPR 702 (Power 2.04 emb)
* perf => 768-783 (Power 2.04)
* perf => 784-799 (Power 2.04)
@@ -4021,8 +4037,8 @@
gen_spr_BookE(env, 0x000000070000FFFFULL);
/* XXX : not implemented */
spr_register(env, SPR_BOOKE_SPEFSCR, "SPEFSCR",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
+ &spr_read_spefscr, &spr_write_spefscr,
+ &spr_read_spefscr, &spr_write_spefscr,
0x00000000);
/* Memory management */
gen_spr_BookE_FSL(env, 0x0000005D);
@@ -4210,8 +4226,8 @@
0x00000000);
/* XXX : not implemented */
spr_register(env, SPR_BOOKE_SPEFSCR, "SPEFSCR",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
+ &spr_read_spefscr, &spr_write_spefscr,
+ &spr_read_spefscr, &spr_write_spefscr,
0x00000000);
/* Memory management */
#if !defined(CONFIG_USER_ONLY)
@@ -9428,8 +9444,7 @@
return 8;
}
if (n == 33) {
- /* SPEFSCR not implemented */
- memset(mem_buf, 0, 4);
+ stl_p(mem_buf, env->spe_fscr);
return 4;
}
return 0;
@@ -9452,7 +9467,7 @@
return 8;
}
if (n == 33) {
- /* SPEFSCR not implemented */
+ env->spe_fscr = ldl_p(mem_buf);
return 4;
}
return 0;
reply other threads:[~2009-03-09 21:04 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=E1LgYxH-000868-4W@cvs.savannah.gnu.org \
--to=aurelien@aurel32.net \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).