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qemu/target-arm-Update-PFIRST-PNEXT-for-pred_.patch
Bruce Rogers a8263c0693 Accepting request 869843 from home:bfrogers:branches:Virtualization
- Include upstream patches designated as stable material and
  reviewed for applicability to include here
  block-Separate-blk_is_writable-and-blk_s.patch
  hw-intc-arm_gic-Fix-interrupt-ID-in-GICD.patch
  hw-net-lan9118-Fix-RX-Status-FIFO-PEEK-v.patch
  hw-timer-slavio_timer-Allow-64-bit-acces.patch
  net-Fix-handling-of-id-in-netdev_add-and.patch
  target-arm-Don-t-decode-insns-in-the-XSc.patch
  target-arm-Fix-MTE0_ACTIVE.patch
  target-arm-Introduce-PREDDESC-field-defi.patch
  target-arm-Update-PFIRST-PNEXT-for-pred_.patch
  target-arm-Update-REV-PUNPK-for-pred_des.patch
  target-arm-Update-ZIP-UZP-TRN-for-pred_d.patch
  tcg-Use-memset-for-large-vector-byte-rep.patch
  ui-vnc-Add-missing-lock-for-send_color_m.patch
  virtio-move-use-disabled-flag-property-t.patch
- binutils v2.36 has changed the handling of the assembler's
  -mx86-used-note, resulting in a build failure. To compensate, we
  now explicitly specify -mx86-used-note=no in the seabios Makefile
  (boo#1181775)
  build-be-explicit-about-mx86-used-note-n.patch

OBS-URL: https://build.opensuse.org/request/show/869843
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=614
2021-02-05 19:59:39 +00:00

66 lines
2.7 KiB
Diff

From: Richard Henderson <richard.henderson@linaro.org>
Date: Tue, 12 Jan 2021 20:26:48 -1000
Subject: target/arm: Update PFIRST, PNEXT for pred_desc
Git-commit: 86300b5d044064046395ae8ed605cc19e63f2a7c
These two were odd, in that do_pfirst_pnext passed the
count of 64-bit words rather than bytes. Change to pass
the standard pred_full_reg_size to avoid confusion.
Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210113062650.593824-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
target/arm/sve_helper.c | 7 ++++---
target/arm/translate-sve.c | 6 +++---
2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 5f037c3a8f8cbc6c093433703153..ff01851bf288009ec3e7585b8e03 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -889,8 +889,9 @@ static intptr_t last_active_element(uint64_t *g, intptr_t words, intptr_t esz)
return (intptr_t)-1 << esz;
}
-uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t words)
+uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t pred_desc)
{
+ intptr_t words = DIV_ROUND_UP(FIELD_EX32(pred_desc, PREDDESC, OPRSZ), 8);
uint32_t flags = PREDTEST_INIT;
uint64_t *d = vd, *g = vg;
intptr_t i = 0;
@@ -914,8 +915,8 @@ uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t words)
uint32_t HELPER(sve_pnext)(void *vd, void *vg, uint32_t pred_desc)
{
- intptr_t words = extract32(pred_desc, 0, SIMD_OPRSZ_BITS);
- intptr_t esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2);
+ intptr_t words = DIV_ROUND_UP(FIELD_EX32(pred_desc, PREDDESC, OPRSZ), 8);
+ intptr_t esz = FIELD_EX32(pred_desc, PREDDESC, ESZ);
uint32_t flags = PREDTEST_INIT;
uint64_t *d = vd, *g = vg, esz_mask;
intptr_t i, next;
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 0c3a6d21210404a1340e58c9a021..efcb646f729b1dbe4f7989e2fb9d 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -1494,10 +1494,10 @@ static bool do_pfirst_pnext(DisasContext *s, arg_rr_esz *a,
TCGv_ptr t_pd = tcg_temp_new_ptr();
TCGv_ptr t_pg = tcg_temp_new_ptr();
TCGv_i32 t;
- unsigned desc;
+ unsigned desc = 0;
- desc = DIV_ROUND_UP(pred_full_reg_size(s), 8);
- desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz);
+ desc = FIELD_DP32(desc, PREDDESC, OPRSZ, pred_full_reg_size(s));
+ desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz);
tcg_gen_addi_ptr(t_pd, cpu_env, pred_full_reg_offset(s, a->rd));
tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->rn));