Re: [PATCH i-g-t v3] igt/gem_workarounds: Test all types of workarounds

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Quoting Oscar Mateo (2017-10-13 21:55:59)
> @@ -134,20 +147,20 @@ static int workaround_fail_count(int fd, uint32_t ctx)
>         igt_debug("Address    val        mask        read        result\n");
>  
>         out = gem_mmap__cpu(fd, obj[0].handle, 0, result_sz, PROT_READ);
> -       for (int i = 0; i < num_wa_regs; i++) {
> +       for (int i = 0; i < num_ctx_wa_regs; i++) {
>                 const bool ok =
> -                       (wa_regs[i].value & wa_regs[i].mask) ==
> -                       (out[i] & wa_regs[i].mask);
> +                       (ctx_wa_regs[i].value & ctx_wa_regs[i].mask) ==
> +                       (out[i] & ctx_wa_regs[i].mask);
>                 char buf[80];
>  
>                 snprintf(buf, sizeof(buf),
>                          "0x%05X    0x%08X    0x%08X    0x%08X",
> -                        wa_regs[i].addr, wa_regs[i].value, wa_regs[i].mask,
> +                        ctx_wa_regs[i].addr, ctx_wa_regs[i].value, ctx_wa_regs[i].mask,
>                          out[i]);
>  
>                 if (ok) {
>                         igt_debug("%s    OK\n", buf);
> -               } else if (write_only(wa_regs[i].addr)) {
> +               } else if (write_only(ctx_wa_regs[i].addr)) {
>                         igt_debug("%s    IGNORED (w/o)\n", buf);
>                 } else {
>                         igt_warn("%s    FAIL\n", buf);
> @@ -163,6 +176,58 @@ static int workaround_fail_count(int fd, uint32_t ctx)
>         return fail_count;
>  }
>  
> +static int mmio_workarounds_fail_count(struct intel_wa_reg *wa_regs, int num_wa_regs)
> +{
> +       int i, fail_count = 0;
> +
> +       if (!num_wa_regs)
> +               return 0;
> +
> +       igt_debug("Address    val        mask        read        result\n");
> +
> +       for (i = 0; i < num_wa_regs; ++i) {
> +               const uint32_t val = intel_register_read(wa_regs[i].addr);
> +               const bool ok = (wa_regs[i].value & wa_regs[i].mask) ==
> +                       (val & wa_regs[i].mask);
> +
> +               igt_debug("0x%05X    0x%08X    0x%08X    0x%08X    %s\n",
> +                         wa_regs[i].addr, wa_regs[i].value,
> +                         wa_regs[i].mask, val, ok ? "OK" : "FAIL");
> +
> +               if (write_only(wa_regs[i].addr))
> +                       continue;
> +
> +               if (!ok) {
> +                       igt_warn("0x%05X    0x%08X    0x%08X    0x%08X    %s\n",
> +                                wa_regs[i].addr, wa_regs[i].value,
> +                                wa_regs[i].mask, val, ok ? "OK" : "FAIL");
> +                       fail_count++;

Ugh, not the debug then duplicate warn again (and not telling us about
the ignored). My vote is that we feed the result into a single pretty
printer (based on the current ctx w/a checker)  for all loops and
remember to include the type (whether ctx, gt, display etc).
-Chris
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