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[Qemu-devel] [PATCH 04/14] Add calls to initialize VSCR on appropriate m
From: |
Nathan Froyd |
Subject: |
[Qemu-devel] [PATCH 04/14] Add calls to initialize VSCR on appropriate machines |
Date: |
Thu, 22 Jan 2009 12:44:04 -0800 |
Signed-off-by: Nathan Froyd <address@hidden>
---
target-ppc/translate_init.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 5008a3a..d1722aa 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -471,6 +471,14 @@ static void spr_write_excp_vector (void *opaque, int sprn,
int gprn)
}
#endif
+static inline void vscr_init (CPUPPCState *env, uint32_t val)
+{
+ env->vscr = val;
+ /* Altivec always uses round-to-nearest */
+ set_float_rounding_mode(float_round_nearest_even, &env->vec_status);
+ set_flush_to_zero(vscr_nj, &env->vec_status);
+}
+
#if defined(CONFIG_USER_ONLY)
#define spr_register(env, num, name, uea_read, uea_write, \
oea_read, oea_write, initial_value) \
@@ -1219,6 +1227,8 @@ static void gen_spr_74xx (CPUPPCState *env)
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
0x00000000);
+ /* Not strictly an SPR */
+ vscr_init(env, 0x00010000);
}
static void gen_l3_ctrl (CPUPPCState *env)
@@ -5918,6 +5928,9 @@ static void init_proc_970 (CPUPPCState *env)
env->icache_line_size = 128;
/* Allocate hardware IRQ controller */
ppc970_irq_init(env);
+ /* Can't find information on what this should be on reset. This
+ * value is the one used by 74xx processors. */
+ vscr_init(env, 0x00010000);
}
/* PowerPC 970FX (aka G5) */
@@ -6004,6 +6017,9 @@ static void init_proc_970FX (CPUPPCState *env)
env->icache_line_size = 128;
/* Allocate hardware IRQ controller */
ppc970_irq_init(env);
+ /* Can't find information on what this should be on reset. This
+ * value is the one used by 74xx processors. */
+ vscr_init(env, 0x00010000);
}
/* PowerPC 970 GX */
@@ -6090,6 +6106,9 @@ static void init_proc_970GX (CPUPPCState *env)
env->icache_line_size = 128;
/* Allocate hardware IRQ controller */
ppc970_irq_init(env);
+ /* Can't find information on what this should be on reset. This
+ * value is the one used by 74xx processors. */
+ vscr_init(env, 0x00010000);
}
/* PowerPC 970 MP */
@@ -6176,6 +6195,9 @@ static void init_proc_970MP (CPUPPCState *env)
env->icache_line_size = 128;
/* Allocate hardware IRQ controller */
ppc970_irq_init(env);
+ /* Can't find information on what this should be on reset. This
+ * value is the one used by 74xx processors. */
+ vscr_init(env, 0x00010000);
}
/* PowerPC 620 */
--
1.6.0.5
- [Qemu-devel] [PATCH 00/14] target-ppc: add floating-point AltiVec instructions, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 05/14] Make mtvscr use a helper, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 14/14] Add vrsqrtefp instruction, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 09/14] Add vcmp{eq,ge,gt,b}fp{,.} instructions, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 13/14] Add vrefp instruction, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 01/14] Add f field to ppc_avr_t, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 10/14] Add vrfi{m,n,p,z} instructions, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 12/14] Add vct{u,s}xs instructions, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 02/14] Add various NaN-handling macros, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 04/14] Add calls to initialize VSCR on appropriate machines,
Nathan Froyd <=
- [Qemu-devel] [PATCH 11/14] Add vcf{u,s}x instructions, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 03/14] Rename spe_status to vec_status, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 08/14] Add vmaddfp and vnmsubfp instructions, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 07/14] Add v{add,sub}fp instructions, Nathan Froyd, 2009/01/22
- [Qemu-devel] [PATCH 06/14] Add v{max,min}fp instructions, Nathan Froyd, 2009/01/22