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powerpc64/bpf: Convert some of the uses of PPC_BPF_[LL|STL] to PPC_BPF_[LD|STD]

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PPC_BPF_[LL|STL] are macros meant for scenarios where we may have to
deal with a non-word aligned offset. Limit their usage to only those
scenarios by converting the rest to just use PPC_BPF_[LD|STD].

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0eb472428165a307f6fdaf22b0c33cbf13a9a635.1644834730.git.naveen.n.rao@linux.vnet.ibm.com
This commit is contained in:
Naveen N. Rao 2022-02-14 16:11:45 +05:30 committed by Michael Ellerman
parent 74bbe3f084
commit 391c271f4d
1 changed files with 11 additions and 11 deletions
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22
arch/powerpc/net/bpf_jit_comp64.c
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@ -74,7 +74,7 @@ void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx)
int i;
if (__is_defined(PPC64_ELF_ABI_v2))
PPC_BPF_LL(_R2, _R13, offsetof(struct paca_struct, kernel_toc));
EMIT(PPC_RAW_LD(_R2, _R13, offsetof(struct paca_struct, kernel_toc)));
/*
* Initialize tail_call_cnt if we do tail calls.
@ -84,7 +84,7 @@ void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx)
if (ctx->seen & SEEN_TAILCALL) {
EMIT(PPC_RAW_LI(b2p[TMP_REG_1], 0));
/* this goes in the redzone */
PPC_BPF_STL(b2p[TMP_REG_1], 1, -(BPF_PPC_STACK_SAVE + 8));
EMIT(PPC_RAW_STD(b2p[TMP_REG_1], 1, -(BPF_PPC_STACK_SAVE + 8)));
} else {
EMIT(PPC_RAW_NOP());
EMIT(PPC_RAW_NOP());
@ -97,7 +97,7 @@ void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx)
*/
if (ctx->seen & SEEN_FUNC) {
EMIT(PPC_RAW_MFLR(_R0));
PPC_BPF_STL(0, 1, PPC_LR_STKOFF);
EMIT(PPC_RAW_STD(0, 1, PPC_LR_STKOFF));
}
PPC_BPF_STLU(1, 1, -(BPF_PPC_STACKFRAME + ctx->stack_size));
@ -110,7 +110,7 @@ void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx)
*/
for (i = BPF_REG_6; i <= BPF_REG_10; i++)
if (bpf_is_seen_register(ctx, b2p[i]))
PPC_BPF_STL(b2p[i], 1, bpf_jit_stack_offsetof(ctx, b2p[i]));
EMIT(PPC_RAW_STD(b2p[i], 1, bpf_jit_stack_offsetof(ctx, b2p[i])));
/* Setup frame pointer to point to the bpf stack area */
if (bpf_is_seen_register(ctx, b2p[BPF_REG_FP]))
@ -125,13 +125,13 @@ static void bpf_jit_emit_common_epilogue(u32 *image, struct codegen_context *ctx
/* Restore NVRs */
for (i = BPF_REG_6; i <= BPF_REG_10; i++)
if (bpf_is_seen_register(ctx, b2p[i]))
PPC_BPF_LL(b2p[i], 1, bpf_jit_stack_offsetof(ctx, b2p[i]));
EMIT(PPC_RAW_LD(b2p[i], 1, bpf_jit_stack_offsetof(ctx, b2p[i])));
/* Tear down our stack frame */
if (bpf_has_stack_frame(ctx)) {
EMIT(PPC_RAW_ADDI(1, 1, BPF_PPC_STACKFRAME + ctx->stack_size));
if (ctx->seen & SEEN_FUNC) {
PPC_BPF_LL(0, 1, PPC_LR_STKOFF);
EMIT(PPC_RAW_LD(0, 1, PPC_LR_STKOFF));
EMIT(PPC_RAW_MTLR(0));
}
}
@ -229,7 +229,7 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o
* if (tail_call_cnt >= MAX_TAIL_CALL_CNT)
* goto out;
*/
PPC_BPF_LL(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx));
EMIT(PPC_RAW_LD(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)));
EMIT(PPC_RAW_CMPLWI(b2p[TMP_REG_1], MAX_TAIL_CALL_CNT));
PPC_BCC_SHORT(COND_GE, out);
@ -237,12 +237,12 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o
* tail_call_cnt++;
*/
EMIT(PPC_RAW_ADDI(b2p[TMP_REG_1], b2p[TMP_REG_1], 1));
PPC_BPF_STL(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx));
EMIT(PPC_RAW_STD(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)));
/* prog = array->ptrs[index]; */
EMIT(PPC_RAW_MULI(b2p[TMP_REG_1], b2p_index, 8));
EMIT(PPC_RAW_ADD(b2p[TMP_REG_1], b2p[TMP_REG_1], b2p_bpf_array));
PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs));
EMIT(PPC_RAW_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs)));
/*
* if (prog == NULL)
@ -252,7 +252,7 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o
PPC_BCC_SHORT(COND_EQ, out);
/* goto *(prog->bpf_func + prologue_size); */
PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func));
EMIT(PPC_RAW_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func)));
EMIT(PPC_RAW_ADDI(b2p[TMP_REG_1], b2p[TMP_REG_1],
FUNCTION_DESCR_SIZE + bpf_tailcall_prologue_size));
EMIT(PPC_RAW_MTCTR(b2p[TMP_REG_1]));
@ -628,7 +628,7 @@ bpf_alu32_trunc:
break;
case 64:
/* Store the value to stack and then use byte-reverse loads */
PPC_BPF_STL(dst_reg, 1, bpf_jit_stack_local(ctx));
EMIT(PPC_RAW_STD(dst_reg, 1, bpf_jit_stack_local(ctx)));
EMIT(PPC_RAW_ADDI(b2p[TMP_REG_1], 1, bpf_jit_stack_local(ctx)));
if (cpu_has_feature(CPU_FTR_ARCH_206)) {
EMIT(PPC_RAW_LDBRX(dst_reg, 0, b2p[TMP_REG_1]));