Initialize a reusable test context for DP link KUnit tests. Sets up minimal device, connector, encoder, and DP structures, and seeds the pseudo-random generator for deterministic test runs.
Signed-off-by: Imre Deak <[email protected]> --- .../i915/display/tests/intel_dp_link_test.c | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c b/drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c index 62e1844605ac5..aa5358c94839f 100644 --- a/drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c +++ b/drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c @@ -5,7 +5,32 @@ #include <kunit/test.h> +#include <linux/compiler.h> +#include <linux/device.h> +#include <linux/prandom.h> +#include <linux/random.h> + +#include <drm/display/drm_dp_helper.h> + +#include <drm/intel/display_member.h> + +#include "intel_connector.h" +#include "intel_display_core.h" +#include "intel_display_types.h" + struct test_ctx { + struct { + struct intel_display display; + struct device device; + struct __intel_generic_device generic_device; + + struct intel_connector connector; + struct intel_digital_port dig_port; + + struct intel_crtc_state crtc_state; + } dev; + + struct rnd_state rnd; }; static struct kunit_case intel_dp_link_test_cases[] = { @@ -16,6 +41,29 @@ static struct test_ctx test_ctx; static int intel_dp_link_test_init(struct kunit *test) { + struct intel_digital_port *dig_port; + struct intel_encoder *encoder; + struct intel_dp *intel_dp; + + /* Reset the dev state for each test. */ + memset(&test_ctx.dev, 0, sizeof(test_ctx.dev)); + + test_ctx.dev.generic_device.drm.dev = &test_ctx.dev.device; + + test_ctx.dev.display.drm = &test_ctx.dev.generic_device.drm; + test_ctx.dev.generic_device.display = &test_ctx.dev.display; + + encoder = &test_ctx.dev.dig_port.base; + encoder->base.dev = &test_ctx.dev.generic_device.drm; + + dig_port = &test_ctx.dev.dig_port; + dig_port->base.type = INTEL_OUTPUT_DP; + + test_ctx.dev.connector.encoder = encoder; + + intel_dp = &dig_port->dp; + intel_dp->attached_connector = &test_ctx.dev.connector; + test->priv = &test_ctx; return 0; @@ -27,6 +75,8 @@ static void intel_dp_link_test_exit(struct kunit *test) static int intel_dp_link_test_suite_init(struct kunit_suite *test_suite) { + prandom_seed_state(&test_ctx.rnd, 0); + return 0; } -- 2.49.1
