mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-28 11:49:32 +00:00
nfp: bpf: add helper for emitting nops
The need to emitting a few nops will become more common soon as we add stack and map support. Add a helper. This allows for code to be shorter but also may be handy for marking the nops with a "reason" to ease applying optimizations. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
a5dd498287
commit
ff42bb9fe3
1 changed files with 8 additions and 3 deletions
|
@ -494,6 +494,12 @@ static swreg re_load_imm_any(struct nfp_prog *nfp_prog, u32 imm, swreg tmp_reg)
|
|||
return tmp_reg;
|
||||
}
|
||||
|
||||
static void wrp_nops(struct nfp_prog *nfp_prog, unsigned int count)
|
||||
{
|
||||
while (count--)
|
||||
emit_nop(nfp_prog);
|
||||
}
|
||||
|
||||
static void
|
||||
wrp_br_special(struct nfp_prog *nfp_prog, enum br_mask mask,
|
||||
enum br_special special)
|
||||
|
@ -1799,7 +1805,7 @@ static void nfp_outro(struct nfp_prog *nfp_prog)
|
|||
static int nfp_translate(struct nfp_prog *nfp_prog)
|
||||
{
|
||||
struct nfp_insn_meta *meta;
|
||||
int i, err;
|
||||
int err;
|
||||
|
||||
nfp_intro(nfp_prog);
|
||||
if (nfp_prog->error)
|
||||
|
@ -1831,8 +1837,7 @@ static int nfp_translate(struct nfp_prog *nfp_prog)
|
|||
if (nfp_prog->error)
|
||||
return nfp_prog->error;
|
||||
|
||||
for (i = 0; i < NFP_USTORE_PREFETCH_WINDOW; i++)
|
||||
emit_nop(nfp_prog);
|
||||
wrp_nops(nfp_prog, NFP_USTORE_PREFETCH_WINDOW);
|
||||
if (nfp_prog->error)
|
||||
return nfp_prog->error;
|
||||
|
||||
|
|
Loading…
Reference in a new issue