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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>, qemu-arm@nongnu.org
Subject: [PATCH v5 08/31] target/arm: Move TBFLAG_AM32 bits to the top
Date: Mon, 19 Apr 2021 13:22:34 -0700	[thread overview]
Message-ID: <20210419202257.161730-9-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210419202257.161730-1-richard.henderson@linaro.org>

Now that these bits have been moved out of tb->flags,
where TBFLAG_ANY was filling from the top, move AM32
to fill from the top, and A32 and M32 to fill from the
bottom.  This means fewer changes when adding new bits.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/cpu.h | 42 +++++++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index a8da7c55a6..15104e1440 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -3395,13 +3395,13 @@ typedef ARMCPU ArchCPU;
  *
  * The bits for 32-bit A-profile and M-profile partially overlap:
  *
- *  18             9              0
- * +----------------+--------------+
- * |   TBFLAG_A32   |              |
- * +-----+----------+  TBFLAG_AM32 |
- * |     |TBFLAG_M32|              |
- * +-----+----------+--------------+
- *     14          9              0
+ *  31         23         11 10             0
+ * +-------------+----------+----------------+
+ * |             |          |   TBFLAG_A32   |
+ * | TBFLAG_AM32 |          +-----+----------+
+ * |             |                |TBFLAG_M32|
+ * +-------------+----------------+----------+
+ *  31         23                5 4        0
  *
  * Unless otherwise noted, these bits are cached in env->hflags.
  */
@@ -3418,44 +3418,44 @@ FIELD(TBFLAG_ANY, DEBUG_TARGET_EL, 20, 2)
 /*
  * Bit usage when in AArch32 state, both A- and M-profile.
  */
-FIELD(TBFLAG_AM32, CONDEXEC, 0, 8)      /* Not cached. */
-FIELD(TBFLAG_AM32, THUMB, 8, 1)         /* Not cached. */
+FIELD(TBFLAG_AM32, CONDEXEC, 24, 8)      /* Not cached. */
+FIELD(TBFLAG_AM32, THUMB, 23, 1)         /* Not cached. */
 
 /*
  * Bit usage when in AArch32 state, for A-profile only.
  */
-FIELD(TBFLAG_A32, VECLEN, 9, 3)         /* Not cached. */
-FIELD(TBFLAG_A32, VECSTRIDE, 12, 2)     /* Not cached. */
+FIELD(TBFLAG_A32, VECLEN, 0, 3)         /* Not cached. */
+FIELD(TBFLAG_A32, VECSTRIDE, 3, 2)     /* Not cached. */
 /*
  * We store the bottom two bits of the CPAR as TB flags and handle
  * checks on the other bits at runtime. This shares the same bits as
  * VECSTRIDE, which is OK as no XScale CPU has VFP.
  * Not cached, because VECLEN+VECSTRIDE are not cached.
  */
-FIELD(TBFLAG_A32, XSCALE_CPAR, 12, 2)
-FIELD(TBFLAG_A32, VFPEN, 14, 1)         /* Partially cached, minus FPEXC. */
-FIELD(TBFLAG_A32, SCTLR__B, 15, 1)      /* Cannot overlap with SCTLR_B */
-FIELD(TBFLAG_A32, HSTR_ACTIVE, 16, 1)
+FIELD(TBFLAG_A32, XSCALE_CPAR, 5, 2)
+FIELD(TBFLAG_A32, VFPEN, 7, 1)         /* Partially cached, minus FPEXC. */
+FIELD(TBFLAG_A32, SCTLR__B, 8, 1)      /* Cannot overlap with SCTLR_B */
+FIELD(TBFLAG_A32, HSTR_ACTIVE, 9, 1)
 /*
  * Indicates whether cp register reads and writes by guest code should access
  * the secure or nonsecure bank of banked registers; note that this is not
  * the same thing as the current security state of the processor!
  */
-FIELD(TBFLAG_A32, NS, 17, 1)
+FIELD(TBFLAG_A32, NS, 10, 1)
 
 /*
  * Bit usage when in AArch32 state, for M-profile only.
  */
 /* Handler (ie not Thread) mode */
-FIELD(TBFLAG_M32, HANDLER, 9, 1)
+FIELD(TBFLAG_M32, HANDLER, 0, 1)
 /* Whether we should generate stack-limit checks */
-FIELD(TBFLAG_M32, STACKCHECK, 10, 1)
+FIELD(TBFLAG_M32, STACKCHECK, 1, 1)
 /* Set if FPCCR.LSPACT is set */
-FIELD(TBFLAG_M32, LSPACT, 11, 1)                 /* Not cached. */
+FIELD(TBFLAG_M32, LSPACT, 2, 1)                 /* Not cached. */
 /* Set if we must create a new FP context */
-FIELD(TBFLAG_M32, NEW_FP_CTXT_NEEDED, 12, 1)     /* Not cached. */
+FIELD(TBFLAG_M32, NEW_FP_CTXT_NEEDED, 3, 1)     /* Not cached. */
 /* Set if FPCCR.S does not match current security state */
-FIELD(TBFLAG_M32, FPCCR_S_WRONG, 13, 1)          /* Not cached. */
+FIELD(TBFLAG_M32, FPCCR_S_WRONG, 4, 1)          /* Not cached. */
 
 /*
  * Bit usage when in AArch64 state
-- 
2.25.1



  parent reply	other threads:[~2021-04-19 20:51 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-19 20:22 [PATCH v5 00/31] target/arm: enforce alignment Richard Henderson
2021-04-19 20:22 ` [PATCH v5 01/31] target/arm: Fix decode of align in VLDST_single Richard Henderson
2021-04-19 20:22 ` [PATCH v5 02/31] target/arm: Rename TBFLAG_A32, SCTLR_B Richard Henderson
2021-04-19 20:22 ` [PATCH v5 03/31] target/arm: Rename TBFLAG_ANY, PSTATE_SS Richard Henderson
2021-04-19 20:22 ` [PATCH v5 04/31] target/arm: Add wrapper macros for accessing tbflags Richard Henderson
2021-04-19 20:22 ` [PATCH v5 05/31] target/arm: Introduce CPUARMTBFlags Richard Henderson
2021-04-19 20:22 ` [PATCH v5 06/31] target/arm: Move mode specific TB flags to tb->cs_base Richard Henderson
2021-04-19 20:22 ` [PATCH v5 07/31] target/arm: Use cpu_abort in assert_hflags_rebuild_correctly Richard Henderson
2021-04-20  9:07   ` Peter Maydell
2021-04-19 20:22 ` Richard Henderson [this message]
2021-04-19 20:22 ` [PATCH v5 09/31] target/arm: Move TBFLAG_ANY bits to the bottom Richard Henderson
2021-04-19 20:22 ` [PATCH v5 10/31] target/arm: Add ALIGN_MEM to TBFLAG_ANY Richard Henderson
2021-04-19 20:22 ` [PATCH v5 11/31] target/arm: Adjust gen_aa32_{ld, st}_i32 for align+endianness Richard Henderson
2021-04-19 20:22 ` [PATCH v5 12/31] target/arm: Merge gen_aa32_frob64 into gen_aa32_ld_i64 Richard Henderson
2021-04-19 20:22 ` [PATCH v5 13/31] target/arm: Fix SCTLR_B test for TCGv_i64 load/store Richard Henderson
2021-04-19 20:22 ` [PATCH v5 14/31] target/arm: Adjust gen_aa32_{ld, st}_i64 for align+endianness Richard Henderson
2021-04-19 20:22 ` [PATCH v5 15/31] target/arm: Enforce word alignment for LDRD/STRD Richard Henderson
2021-04-19 20:22 ` [PATCH v5 16/31] target/arm: Enforce alignment for LDA/LDAH/STL/STLH Richard Henderson
2021-04-19 20:22 ` [PATCH v5 17/31] target/arm: Enforce alignment for LDM/STM Richard Henderson
2021-08-31  0:51   ` Nathan Chancellor
2021-08-31  0:51     ` Nathan Chancellor
2021-09-07 13:44     ` Richard Henderson
2021-09-07 13:44       ` Richard Henderson
2021-09-15  1:13       ` Nick Desaulniers
2021-09-15  1:13         ` Nick Desaulniers
2021-04-19 20:22 ` [PATCH v5 18/31] target/arm: Enforce alignment for RFE Richard Henderson
2021-04-19 20:22 ` [PATCH v5 19/31] target/arm: Enforce alignment for SRS Richard Henderson
2021-04-19 20:22 ` [PATCH v5 20/31] target/arm: Enforce alignment for VLDM/VSTM Richard Henderson
2021-04-19 20:22 ` [PATCH v5 21/31] target/arm: Enforce alignment for VLDR/VSTR Richard Henderson
2021-04-19 20:22 ` [PATCH v5 22/31] target/arm: Enforce alignment for VLDn (all lanes) Richard Henderson
2021-04-19 20:22 ` [PATCH v5 23/31] target/arm: Enforce alignment for VLDn/VSTn (multiple) Richard Henderson
2021-04-19 20:22 ` [PATCH v5 24/31] target/arm: Enforce alignment for VLDn/VSTn (single) Richard Henderson
2021-04-19 20:22 ` [PATCH v5 25/31] target/arm: Use finalize_memop for aa64 gpr load/store Richard Henderson
2021-04-19 20:22 ` [PATCH v5 26/31] target/arm: Use finalize_memop for aa64 fpr load/store Richard Henderson
2021-04-19 20:22 ` [PATCH v5 27/31] target/arm: Enforce alignment for aa64 load-acq/store-rel Richard Henderson
2021-04-19 20:22 ` [PATCH v5 28/31] target/arm: Use MemOp for size + endian in aa64 vector ld/st Richard Henderson
2021-04-19 20:22 ` [PATCH v5 29/31] target/arm: Enforce alignment for aa64 vector LDn/STn (multiple) Richard Henderson
2021-04-19 20:22 ` [PATCH v5 30/31] target/arm: Enforce alignment for aa64 vector LDn/STn (single) Richard Henderson
2021-04-19 20:22 ` [PATCH v5 31/31] target/arm: Enforce alignment for sve LD1R Richard Henderson
2021-04-20 10:27 ` [PATCH v5 00/31] target/arm: enforce alignment Peter Maydell

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