On 11/28/22 15:53, Maxime Ripard wrote:
> Accessing a register when running under kunit is a bad idea since our
> device is completely mocked.
>
> Fail the current test if we ever access any of our hardware registers.
>
> Signed-off-by: Maxime Ripard <max...@cerno.tech>
> ---
[...]
> -#define CRTC_WRITE(offset, val) writel(val, vc4_crtc->regs + (offset))
> -#define CRTC_READ(offset) readl(vc4_crtc->regs + (offset))
> +#define CRTC_WRITE(offset, val)
> \
> + do {
> \
> + kunit_fail_current_test("Accessing a register in a unit
> test!\n"); \
> + writel(val, vc4_crtc->regs + (offset));
> \
> + } while (0)
> +
> +#define CRTC_READ(offset)
> \
> + ({
> \
> + kunit_fail_current_test("Accessing a register in a unit
> test!\n"); \
> + readl(vc4_crtc->regs + (offset));
> \
> + })
>
Should this be made conditional on whether DRM_VC4_KUNIT_TEST is enabled ?
That is, just define the simpler macros when is disabled? The
kunit_fail_current_test()
is just a no-op if CONFIG_KUNIT isn't enabled, but I think my question still
stands.
Reviewed-by: Javier Martinez Canillas <javi...@redhat.com>
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
