From d3314efd6ebf335a3682b1d6b1b81cdab3d8254a Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:26 +0200 Subject: drm/tests: hdmi: handle empty modes in find_preferred_mode() If the connector->modes list is empty, then list_first_entry() returns a bogus entry. Change that to use list_first_entry_or_null(). Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-1-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c index 294773342e71..1e77689af654 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -46,7 +46,7 @@ static struct drm_display_mode *find_preferred_mode(struct drm_connector *connec struct drm_display_mode *mode, *preferred; mutex_lock(&drm->mode_config.mutex); - preferred = list_first_entry(&connector->modes, struct drm_display_mode, head); + preferred = list_first_entry_or_null(&connector->modes, struct drm_display_mode, head); list_for_each_entry(mode, &connector->modes, head) if (mode->type & DRM_MODE_TYPE_PREFERRED) preferred = mode; -- cgit v1.2.3 From 67d31cd02c8dfb3d006dba62a854e6758cf7a0e4 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:27 +0200 Subject: drm/tests: hdmi: rename connector creation function As pointed out by Maxime, the drm_atomic_helper_connector_hdmi_init() isn't a good name for a function inside KUnit tests. Rename it to drm_kunit_helper_connector_hdmi_init(). Suggested-by: Maxime Ripard Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-2-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 202 ++++++++++----------- 1 file changed, 101 insertions(+), 101 deletions(-) diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c index 1e77689af654..60b1e3752283 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -164,9 +164,9 @@ static const struct drm_connector_funcs dummy_connector_funcs = { static struct drm_atomic_helper_connector_hdmi_priv * -drm_atomic_helper_connector_hdmi_init(struct kunit *test, - unsigned int formats, - unsigned int max_bpc) +drm_kunit_helper_connector_hdmi_init(struct kunit *test, + unsigned int formats, + unsigned int max_bpc) { struct drm_atomic_helper_connector_hdmi_priv *priv; struct drm_connector *conn; @@ -247,9 +247,9 @@ static void drm_test_check_broadcast_rgb_crtc_mode_changed(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); ctx = drm_kunit_helper_acquire_ctx_alloc(test); @@ -310,9 +310,9 @@ static void drm_test_check_broadcast_rgb_crtc_mode_not_changed(struct kunit *tes struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); ctx = drm_kunit_helper_acquire_ctx_alloc(test); @@ -373,9 +373,9 @@ static void drm_test_check_broadcast_rgb_auto_cea_mode(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -429,9 +429,9 @@ static void drm_test_check_broadcast_rgb_auto_cea_mode_vic_1(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); drm = &priv->drm; @@ -485,9 +485,9 @@ static void drm_test_check_broadcast_rgb_full_cea_mode(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -543,9 +543,9 @@ static void drm_test_check_broadcast_rgb_full_cea_mode_vic_1(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); drm = &priv->drm; @@ -601,9 +601,9 @@ static void drm_test_check_broadcast_rgb_limited_cea_mode(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -659,9 +659,9 @@ static void drm_test_check_broadcast_rgb_limited_cea_mode_vic_1(struct kunit *te struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); drm = &priv->drm; @@ -719,9 +719,9 @@ static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 10); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -793,9 +793,9 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 10); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -862,11 +862,11 @@ static void drm_test_check_output_bpc_dvi(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB) | - BIT(HDMI_COLORSPACE_YUV422) | - BIT(HDMI_COLORSPACE_YUV444), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -911,9 +911,9 @@ static void drm_test_check_tmds_char_rate_rgb_8bpc(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -958,9 +958,9 @@ static void drm_test_check_tmds_char_rate_rgb_10bpc(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 10); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1005,9 +1005,9 @@ static void drm_test_check_tmds_char_rate_rgb_12bpc(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1056,9 +1056,9 @@ static void drm_test_check_hdmi_funcs_reject_rate(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); ctx = drm_kunit_helper_acquire_ctx_alloc(test); @@ -1112,9 +1112,9 @@ static void drm_test_check_max_tmds_rate_bpc_fallback(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1179,11 +1179,11 @@ static void drm_test_check_max_tmds_rate_format_fallback(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB) | - BIT(HDMI_COLORSPACE_YUV422) | - BIT(HDMI_COLORSPACE_YUV444), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1242,11 +1242,11 @@ static void drm_test_check_output_bpc_format_vic_1(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB) | - BIT(HDMI_COLORSPACE_YUV422) | - BIT(HDMI_COLORSPACE_YUV444), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); drm = &priv->drm; @@ -1305,9 +1305,9 @@ static void drm_test_check_output_bpc_format_driver_rgb_only(struct kunit *test) struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1370,11 +1370,11 @@ static void drm_test_check_output_bpc_format_display_rgb_only(struct kunit *test struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB) | - BIT(HDMI_COLORSPACE_YUV422) | - BIT(HDMI_COLORSPACE_YUV444), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1438,9 +1438,9 @@ static void drm_test_check_output_bpc_format_driver_8bpc_only(struct kunit *test struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1496,11 +1496,11 @@ static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *tes struct drm_crtc *crtc; int ret; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB) | - BIT(HDMI_COLORSPACE_YUV422) | - BIT(HDMI_COLORSPACE_YUV444), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1593,9 +1593,9 @@ static void drm_test_check_broadcast_rgb_value(struct kunit *test) struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1615,9 +1615,9 @@ static void drm_test_check_bpc_8_value(struct kunit *test) struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1639,9 +1639,9 @@ static void drm_test_check_bpc_10_value(struct kunit *test) struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 10); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1663,9 +1663,9 @@ static void drm_test_check_bpc_12_value(struct kunit *test) struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1685,11 +1685,11 @@ static void drm_test_check_format_value(struct kunit *test) struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB) | - BIT(HDMI_COLORSPACE_YUV422) | - BIT(HDMI_COLORSPACE_YUV444), - 8); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 8); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; @@ -1707,11 +1707,11 @@ static void drm_test_check_tmds_char_value(struct kunit *test) struct drm_connector_state *conn_state; struct drm_connector *conn; - priv = drm_atomic_helper_connector_hdmi_init(test, - BIT(HDMI_COLORSPACE_RGB) | - BIT(HDMI_COLORSPACE_YUV422) | - BIT(HDMI_COLORSPACE_YUV444), - 12); + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); KUNIT_ASSERT_NOT_NULL(test, priv); conn = &priv->connector; -- cgit v1.2.3 From a8403be6eea91e4f5d8ad5dbc463dd08339eaece Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:28 +0200 Subject: drm/tests: hdmi: return meaningful value from set_connector_edid() The set_connector_edid() function returns a bogus 0, performing the check on the connector->funcs->fill_modes() result internally. Make the function pass the fill_modes()'s return value to the caller and move corresponding checks to the caller site. Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-3-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 31 +++++++++++----------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c index 60b1e3752283..19384b5ff281 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -105,9 +105,8 @@ static int set_connector_edid(struct kunit *test, struct drm_connector *connecto mutex_lock(&drm->mode_config.mutex); ret = connector->funcs->fill_modes(connector, 4096, 4096); mutex_unlock(&drm->mode_config.mutex); - KUNIT_ASSERT_GT(test, ret, 0); - return 0; + return ret; } static const struct drm_connector_hdmi_funcs dummy_connector_hdmi_funcs = { @@ -223,7 +222,7 @@ drm_kunit_helper_connector_hdmi_init(struct kunit *test, ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); return priv; } @@ -728,7 +727,7 @@ static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); @@ -802,7 +801,7 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); @@ -873,7 +872,7 @@ static void drm_test_check_output_bpc_dvi(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_dvi_1080p, ARRAY_SIZE(test_edid_dvi_1080p)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_FALSE(test, info->is_hdmi); @@ -920,7 +919,7 @@ static void drm_test_check_tmds_char_rate_rgb_8bpc(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); @@ -967,7 +966,7 @@ static void drm_test_check_tmds_char_rate_rgb_10bpc(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); @@ -1014,7 +1013,7 @@ static void drm_test_check_tmds_char_rate_rgb_12bpc(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); @@ -1121,7 +1120,7 @@ static void drm_test_check_max_tmds_rate_bpc_fallback(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_TRUE(test, info->is_hdmi); @@ -1190,7 +1189,7 @@ static void drm_test_check_max_tmds_rate_format_fallback(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_TRUE(test, info->is_hdmi); @@ -1254,7 +1253,7 @@ static void drm_test_check_output_bpc_format_vic_1(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_TRUE(test, info->is_hdmi); @@ -1314,7 +1313,7 @@ static void drm_test_check_output_bpc_format_driver_rgb_only(struct kunit *test) ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_TRUE(test, info->is_hdmi); @@ -1381,7 +1380,7 @@ static void drm_test_check_output_bpc_format_display_rgb_only(struct kunit *test ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_TRUE(test, info->is_hdmi); @@ -1447,7 +1446,7 @@ static void drm_test_check_output_bpc_format_driver_8bpc_only(struct kunit *test ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_TRUE(test, info->is_hdmi); @@ -1507,7 +1506,7 @@ static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *tes ret = set_connector_edid(test, conn, test_edid_hdmi_1080p_rgb_max_340mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_340mhz)); - KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_GT(test, ret, 0); info = &conn->display_info; KUNIT_ASSERT_TRUE(test, info->is_hdmi); -- cgit v1.2.3 From 47368ab437fdd1b5118644659a97a6e5dab45248 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:29 +0200 Subject: drm/display: hdmi: add generic mode_valid helper Add drm_hdmi_connector_mode_valid(), generic helper for HDMI connectors. It can be either used directly or as a part of the .mode_valid callback. Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-4-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 21 +++ drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 180 ++++++++++++++++++++- drivers/gpu/drm/tests/drm_kunit_edid.h | 102 ++++++++++++ include/drm/display/drm_hdmi_state_helper.h | 4 + 4 files changed, 302 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index feb7a3a75981..80bf2829ba89 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -521,6 +521,27 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, } EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_check); +/** + * drm_hdmi_connector_mode_valid() - Check if mode is valid for HDMI connector + * @connector: DRM connector to validate the mode + * @mode: Display mode to validate + * + * Generic .mode_valid implementation for HDMI connectors. + */ +enum drm_mode_status +drm_hdmi_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + unsigned long long clock; + + clock = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); + if (!clock) + return MODE_ERROR; + + return hdmi_clock_valid(connector, mode, clock); +} +EXPORT_SYMBOL(drm_hdmi_connector_mode_valid); + static int clear_device_infoframe(struct drm_connector *connector, enum hdmi_infoframe_type type) { diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c index 19384b5ff281..c3b693bb966f 100644 --- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -124,6 +124,18 @@ static const struct drm_connector_hdmi_funcs reject_connector_hdmi_funcs = { .tmds_char_rate_valid = reject_connector_tmds_char_rate_valid, }; +static enum drm_mode_status +reject_100MHz_connector_tmds_char_rate_valid(const struct drm_connector *connector, + const struct drm_display_mode *mode, + unsigned long long tmds_rate) +{ + return (tmds_rate > 100ULL * 1000 * 1000) ? MODE_BAD : MODE_OK; +} + +static const struct drm_connector_hdmi_funcs reject_100_MHz_connector_hdmi_funcs = { + .tmds_char_rate_valid = reject_100MHz_connector_tmds_char_rate_valid, +}; + static int dummy_connector_get_modes(struct drm_connector *connector) { struct drm_atomic_helper_connector_hdmi_priv *priv = @@ -146,6 +158,7 @@ static int dummy_connector_get_modes(struct drm_connector *connector) static const struct drm_connector_helper_funcs dummy_connector_helper_funcs = { .atomic_check = drm_atomic_helper_connector_hdmi_check, .get_modes = dummy_connector_get_modes, + .mode_valid = drm_hdmi_connector_mode_valid, }; static void dummy_hdmi_connector_reset(struct drm_connector *connector) @@ -163,9 +176,10 @@ static const struct drm_connector_funcs dummy_connector_funcs = { static struct drm_atomic_helper_connector_hdmi_priv * -drm_kunit_helper_connector_hdmi_init(struct kunit *test, - unsigned int formats, - unsigned int max_bpc) +drm_kunit_helper_connector_hdmi_init_funcs(struct kunit *test, + unsigned int formats, + unsigned int max_bpc, + const struct drm_connector_hdmi_funcs *hdmi_funcs) { struct drm_atomic_helper_connector_hdmi_priv *priv; struct drm_connector *conn; @@ -207,7 +221,7 @@ drm_kunit_helper_connector_hdmi_init(struct kunit *test, ret = drmm_connector_hdmi_init(drm, conn, "Vendor", "Product", &dummy_connector_funcs, - &dummy_connector_hdmi_funcs, + hdmi_funcs, DRM_MODE_CONNECTOR_HDMIA, NULL, formats, @@ -219,7 +233,24 @@ drm_kunit_helper_connector_hdmi_init(struct kunit *test, drm_mode_config_reset(drm); - ret = set_connector_edid(test, conn, + return priv; +} + +static +struct drm_atomic_helper_connector_hdmi_priv * +drm_kunit_helper_connector_hdmi_init(struct kunit *test, + unsigned int formats, + unsigned int max_bpc) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_funcs(test, + formats, max_bpc, + &dummy_connector_hdmi_funcs); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + ret = set_connector_edid(test, &priv->connector, test_edid_hdmi_1080p_rgb_max_200mhz, ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); KUNIT_ASSERT_GT(test, ret, 0); @@ -1733,9 +1764,148 @@ static struct kunit_suite drm_atomic_helper_connector_hdmi_reset_test_suite = { .test_cases = drm_atomic_helper_connector_hdmi_reset_tests, }; +/* + * Test that the default behaviour for drm_hdmi_connector_mode_valid() is not + * to reject any modes. Pass a correct EDID and verify that preferred mode + * matches the expectations (1080p). + */ +static void drm_test_check_mode_valid(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_display_mode *preferred; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + KUNIT_EXPECT_EQ(test, preferred->hdisplay, 1920); + KUNIT_EXPECT_EQ(test, preferred->vdisplay, 1080); + KUNIT_EXPECT_EQ(test, preferred->clock, 148500); +} + +/* + * Test that the drm_hdmi_connector_mode_valid() will reject modes depending on + * the .tmds_char_rate_valid() behaviour. + * Pass a correct EDID and verify that high-rate modes are filtered. + */ +static void drm_test_check_mode_valid_reject_rate(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_display_mode *preferred; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 8, + &reject_100_MHz_connector_hdmi_funcs); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); + KUNIT_ASSERT_GT(test, ret, 0); + + /* + * Unlike the drm_test_check_mode_valid() here 1080p is rejected, but + * 480p is allowed. + */ + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_EXPECT_EQ(test, preferred->hdisplay, 640); + KUNIT_EXPECT_EQ(test, preferred->vdisplay, 480); + KUNIT_EXPECT_EQ(test, preferred->clock, 25200); +} + +/* + * Test that the drm_hdmi_connector_mode_valid() will not mark any modes as + * valid if .tmds_char_rate_valid() rejects all of them. Pass a correct EDID + * and verify that there is no preferred mode and no modes were set for the + * connector. + */ +static void drm_test_check_mode_valid_reject(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_display_mode *preferred; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 8, + &reject_connector_hdmi_funcs); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + + /* should reject all modes */ + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NULL(test, preferred); +} + +/* + * Test that the drm_hdmi_connector_mode_valid() will reject modes that don't + * pass the info.max_tmds_clock filter. Pass crafted EDID and verify that + * high-rate modes are filtered. + */ +static void drm_test_check_mode_valid_reject_max_clock(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_display_mode *preferred; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_100mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_100mhz)); + KUNIT_ASSERT_GT(test, ret, 0); + + KUNIT_ASSERT_EQ(test, conn->display_info.max_tmds_clock, 100 * 1000); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_EXPECT_EQ(test, preferred->hdisplay, 640); + KUNIT_EXPECT_EQ(test, preferred->vdisplay, 480); + KUNIT_EXPECT_EQ(test, preferred->clock, 25200); +} + +static struct kunit_case drm_atomic_helper_connector_hdmi_mode_valid_tests[] = { + KUNIT_CASE(drm_test_check_mode_valid), + KUNIT_CASE(drm_test_check_mode_valid_reject), + KUNIT_CASE(drm_test_check_mode_valid_reject_rate), + KUNIT_CASE(drm_test_check_mode_valid_reject_max_clock), + { } +}; + +static struct kunit_suite drm_atomic_helper_connector_hdmi_mode_valid_test_suite = { + .name = "drm_atomic_helper_connector_hdmi_mode_valid", + .test_cases = drm_atomic_helper_connector_hdmi_mode_valid_tests, +}; + kunit_test_suites( &drm_atomic_helper_connector_hdmi_check_test_suite, &drm_atomic_helper_connector_hdmi_reset_test_suite, + &drm_atomic_helper_connector_hdmi_mode_valid_test_suite, ); MODULE_AUTHOR("Maxime Ripard "); diff --git a/drivers/gpu/drm/tests/drm_kunit_edid.h b/drivers/gpu/drm/tests/drm_kunit_edid.h index 107559900e97..6358397a5d7a 100644 --- a/drivers/gpu/drm/tests/drm_kunit_edid.h +++ b/drivers/gpu/drm/tests/drm_kunit_edid.h @@ -61,6 +61,108 @@ static const unsigned char test_edid_dvi_1080p[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xab }; +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 92 + * + * 02 03 1b 81 e3 05 00 20 41 10 e2 00 4a 6d 03 0c + * 00 12 34 00 14 20 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e4 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Monochrome or grayscale display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x92 + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: No Data + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * Maximum TMDS clock: 100 MHz + * Extended HDMI video details: + * Checksum: 0xe4 Unused space in Extension Block: 100 bytes + */ +static const unsigned char test_edid_hdmi_1080p_rgb_max_100mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x00, 0x00, 0xc4, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x41, 0x02, 0x03, 0x1b, 0x81, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0x4a, 0x6d, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x00, 0x14, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xe4 +}; + /* * edid-decode (hex): * diff --git a/include/drm/display/drm_hdmi_state_helper.h b/include/drm/display/drm_hdmi_state_helper.h index 2d45fcfa4619..d6d65da6d8f9 100644 --- a/include/drm/display/drm_hdmi_state_helper.h +++ b/include/drm/display/drm_hdmi_state_helper.h @@ -20,4 +20,8 @@ int drm_atomic_helper_connector_hdmi_clear_audio_infoframe(struct drm_connector int drm_atomic_helper_connector_hdmi_update_infoframes(struct drm_connector *connector, struct drm_atomic_state *state); +enum drm_mode_status +drm_hdmi_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode); + #endif // DRM_HDMI_STATE_HELPER_H_ -- cgit v1.2.3 From ae048fc4f96d716a2ef326bd6e894694057c078c Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:30 +0200 Subject: drm/sun4i: use drm_hdmi_connector_mode_valid() Use new drm_hdmi_connector_mode_valid() helper instead of a module-specific copy. Reviewed-by: Chen-Yu Tsai Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-5-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c index b3649449de30..54b72fe220af 100644 --- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c +++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c @@ -205,16 +205,6 @@ static int sun4i_hdmi_connector_atomic_check(struct drm_connector *connector, return 0; } -static enum drm_mode_status -sun4i_hdmi_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - unsigned long long rate = drm_hdmi_compute_mode_clock(mode, 8, - HDMI_COLORSPACE_RGB); - - return sun4i_hdmi_connector_clock_valid(connector, mode, rate); -} - static int sun4i_hdmi_get_modes(struct drm_connector *connector) { struct sun4i_hdmi *hdmi = drm_connector_to_sun4i_hdmi(connector); @@ -269,7 +259,7 @@ static const struct drm_connector_hdmi_funcs sun4i_hdmi_hdmi_connector_funcs = { static const struct drm_connector_helper_funcs sun4i_hdmi_connector_helper_funcs = { .atomic_check = sun4i_hdmi_connector_atomic_check, - .mode_valid = sun4i_hdmi_connector_mode_valid, + .mode_valid = drm_hdmi_connector_mode_valid, .get_modes = sun4i_hdmi_get_modes, }; -- cgit v1.2.3 From d4581ae8695863b21f9b739dddce8159f3068ca3 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:31 +0200 Subject: drm/vc4: use drm_hdmi_connector_mode_valid() Use new drm_hdmi_connector_mode_valid() helper instead of a module-specific copy. Reviewed-by: Chen-Yu Tsai Acked-by: Dave Stevenson Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-6-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/vc4/vc4_hdmi.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index b9fc4d981cf4..297afd89036b 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -580,6 +580,7 @@ static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = .detect_ctx = vc4_hdmi_connector_detect_ctx, .get_modes = vc4_hdmi_connector_get_modes, .atomic_check = vc4_hdmi_connector_atomic_check, + .mode_valid = drm_hdmi_connector_mode_valid, }; static const struct drm_connector_hdmi_funcs vc4_hdmi_hdmi_connector_funcs; @@ -1765,7 +1766,6 @@ vc4_hdmi_encoder_mode_valid(struct drm_encoder *encoder, const struct drm_display_mode *mode) { struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); - unsigned long long rate; if (vc4_hdmi->variant->unsupported_odd_h_timings && !(mode->flags & DRM_MODE_FLAG_DBLCLK) && @@ -1773,8 +1773,7 @@ vc4_hdmi_encoder_mode_valid(struct drm_encoder *encoder, (mode->hsync_end % 2) || (mode->htotal % 2))) return MODE_H_ILLEGAL; - rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); - return vc4_hdmi_connector_clock_valid(&vc4_hdmi->connector, mode, rate); + return MODE_OK; } static const struct drm_encoder_helper_funcs vc4_hdmi_encoder_helper_funcs = { -- cgit v1.2.3 From 54d7b7f9d637a53ba19d117eb9b01619bb1704ed Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:32 +0200 Subject: drm/display: bridge_connector: use drm_bridge_connector_mode_valid() Use new drm_bridge_connector_mode_valid() helper if there is a HDMI bridge in the bridge chain. This removes the need to perform TMDS char rate check manually in the bridge driver. Reviewed-by: Chen-Yu Tsai Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-7-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/display/drm_bridge_connector.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c index 320c297008aa..512ced87ea18 100644 --- a/drivers/gpu/drm/display/drm_bridge_connector.c +++ b/drivers/gpu/drm/display/drm_bridge_connector.c @@ -18,6 +18,7 @@ #include #include #include +#include #include /** @@ -299,9 +300,22 @@ static int drm_bridge_connector_get_modes(struct drm_connector *connector) return 0; } +static enum drm_mode_status +drm_bridge_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct drm_bridge_connector *bridge_connector = + to_drm_bridge_connector(connector); + + if (bridge_connector->bridge_hdmi) + return drm_hdmi_connector_mode_valid(connector, mode); + + return MODE_OK; +} + static const struct drm_connector_helper_funcs drm_bridge_connector_helper_funcs = { .get_modes = drm_bridge_connector_get_modes, - /* No need for .mode_valid(), the bridges are checked by the core. */ + .mode_valid = drm_bridge_connector_mode_valid, .enable_hpd = drm_bridge_connector_enable_hpd, .disable_hpd = drm_bridge_connector_disable_hpd, }; -- cgit v1.2.3 From efda6551aa866b80dcb5a94158d805c560fc4f1c Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:33 +0200 Subject: drm/bridge: lontium-lt9611: drop TMDS char rate check in mode_valid Drop manual check of the TMDS char rate in the mode_valid callback. This check is now being performed by the core. Reviewed-by: Chen-Yu Tsai Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-8-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/lontium-lt9611.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 8f25b338a8d8..1ffbe473e410 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -757,7 +757,6 @@ static enum drm_mode_status lt9611_bridge_mode_valid(struct drm_bridge *bridge, const struct drm_display_mode *mode) { struct lt9611 *lt9611 = bridge_to_lt9611(bridge); - unsigned long long rate; if (mode->hdisplay > 3840) return MODE_BAD_HVALUE; @@ -765,8 +764,7 @@ static enum drm_mode_status lt9611_bridge_mode_valid(struct drm_bridge *bridge, if (mode->hdisplay > 2000 && !lt9611->dsi1_node) return MODE_PANEL; - rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); - return bridge->funcs->hdmi_tmds_char_rate_valid(bridge, mode, rate); + return MODE_OK; } static int lt9611_bridge_atomic_check(struct drm_bridge *bridge, -- cgit v1.2.3 From 2d7202c6f38d14260a3998a2aa249a53415a24f5 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:34 +0200 Subject: drm/bridge: dw-hdmi-qp: replace mode_valid with tmds_char_rate Replace .mode_valid() callback with .hdmi_tmds_char_rate_valid(). It is more generic and is used in other mode validation paths. The rate validation for .mode_valid() will be performed by the drm_bridge_connector code. Reviewed-by: Chen-Yu Tsai Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-9-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c index 181c5164b231..c686671e4850 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c @@ -442,16 +442,14 @@ dw_hdmi_qp_bridge_edid_read(struct drm_bridge *bridge, } static enum drm_mode_status -dw_hdmi_qp_bridge_mode_valid(struct drm_bridge *bridge, - const struct drm_display_info *info, - const struct drm_display_mode *mode) +dw_hdmi_qp_bridge_tmds_char_rate_valid(const struct drm_bridge *bridge, + const struct drm_display_mode *mode, + unsigned long long rate) { struct dw_hdmi_qp *hdmi = bridge->driver_private; - unsigned long long rate; - rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); if (rate > HDMI14_MAX_TMDSCLK) { - dev_dbg(hdmi->dev, "Unsupported mode clock: %d\n", mode->clock); + dev_dbg(hdmi->dev, "Unsupported TMDS char rate: %lld\n", rate); return MODE_CLOCK_HIGH; } @@ -510,7 +508,7 @@ static const struct drm_bridge_funcs dw_hdmi_qp_bridge_funcs = { .atomic_disable = dw_hdmi_qp_bridge_atomic_disable, .detect = dw_hdmi_qp_bridge_detect, .edid_read = dw_hdmi_qp_bridge_edid_read, - .mode_valid = dw_hdmi_qp_bridge_mode_valid, + .hdmi_tmds_char_rate_valid = dw_hdmi_qp_bridge_tmds_char_rate_valid, .hdmi_clear_infoframe = dw_hdmi_qp_bridge_clear_infoframe, .hdmi_write_infoframe = dw_hdmi_qp_bridge_write_infoframe, }; -- cgit v1.2.3 From 84e541b1e58e04d808e1bb13ef566ffbe87aa89b Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 30 Nov 2024 03:52:35 +0200 Subject: drm/sun4i: use drm_atomic_helper_connector_hdmi_check() Replace sun4i_hdmi_connector_atomic_check(), which performs just TMDS char rate check, with drm_atomic_helper_connector_hdmi_check(), which performs additional checks basing on the HDMI Connector's state. Suggested-by: Maxime Ripard Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20241130-hdmi-mode-valid-v5-10-742644ec3b1f@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c index 54b72fe220af..b05fd77870b0 100644 --- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c +++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c @@ -187,24 +187,6 @@ sun4i_hdmi_connector_clock_valid(const struct drm_connector *connector, return MODE_NOCLOCK; } -static int sun4i_hdmi_connector_atomic_check(struct drm_connector *connector, - struct drm_atomic_state *state) -{ - struct drm_connector_state *conn_state = - drm_atomic_get_new_connector_state(state, connector); - struct drm_crtc *crtc = conn_state->crtc; - struct drm_crtc_state *crtc_state = crtc->state; - struct drm_display_mode *mode = &crtc_state->adjusted_mode; - enum drm_mode_status status; - - status = sun4i_hdmi_connector_clock_valid(connector, mode, - conn_state->hdmi.tmds_char_rate); - if (status != MODE_OK) - return -EINVAL; - - return 0; -} - static int sun4i_hdmi_get_modes(struct drm_connector *connector) { struct sun4i_hdmi *hdmi = drm_connector_to_sun4i_hdmi(connector); @@ -258,7 +240,7 @@ static const struct drm_connector_hdmi_funcs sun4i_hdmi_hdmi_connector_funcs = { }; static const struct drm_connector_helper_funcs sun4i_hdmi_connector_helper_funcs = { - .atomic_check = sun4i_hdmi_connector_atomic_check, + .atomic_check = drm_atomic_helper_connector_hdmi_check, .mode_valid = drm_hdmi_connector_mode_valid, .get_modes = sun4i_hdmi_get_modes, }; -- cgit v1.2.3 From 76ba5467ecfd17f63da954c946ec98aa3cbde2d3 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Wed, 4 Dec 2024 17:39:41 +0800 Subject: drm/panel: visionox-rm69299: Remove redundant assignments of panel fields drm_panel_init() was made to initialize the fields in |struct drm_panel|. There is no need to separately initialize them again. Drop the separate assignments that are redundant. Also fix up any uses of `ctx->panel.dev` to use `dev` directly. Reviewed-by: Jessica Zhang Reviewed-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20241204093942.1374693-1-wenst@chromium.org Signed-off-by: Chen-Yu Tsai --- drivers/gpu/drm/panel/panel-visionox-rm69299.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c index 272490b9565b..be3a9797fbce 100644 --- a/drivers/gpu/drm/panel/panel-visionox-rm69299.c +++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c @@ -193,7 +193,6 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi) mipi_dsi_set_drvdata(dsi, ctx); - ctx->panel.dev = dev; ctx->dsi = dsi; ctx->supplies[0].supply = "vdda"; @@ -201,13 +200,11 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi) ctx->supplies[1].supply = "vdd3p3"; ctx->supplies[1].init_load_uA = 13200; - ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies), - ctx->supplies); + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), ctx->supplies); if (ret < 0) return ret; - ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev, - "reset", GPIOD_OUT_LOW); + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(ctx->reset_gpio)) { dev_err(dev, "cannot get reset gpio %ld\n", PTR_ERR(ctx->reset_gpio)); return PTR_ERR(ctx->reset_gpio); @@ -215,8 +212,6 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi) drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs, DRM_MODE_CONNECTOR_DSI); - ctx->panel.dev = dev; - ctx->panel.funcs = &visionox_rm69299_drm_funcs; drm_panel_add(&ctx->panel); dsi->lanes = 4; -- cgit v1.2.3 From 919b1458ccfd33ead891fa4ad1e1d06016f5a20c Mon Sep 17 00:00:00 2001 From: Tommaso Merciai Date: Thu, 5 Dec 2024 09:02:10 +0100 Subject: drm/bridge: ite-it6263: Support VESA-24 input format Introduce it6263_is_input_bus_fmt_valid() and refactor the it6263_bridge_atomic_get_input_bus_fmts() function to support VESA-24 format by selecting the LVDS input format based on the LVDS data mapping and thereby support both JEIDA-24 and VESA-24 input formats. Reviewed-by: Dmitry Baryshkov Signed-off-by: Tommaso Merciai Reviewed-by: Liu Ying Reviewed-by: Biju Das Link: https://patchwork.freedesktop.org/patch/msgid/20241205080210.1285385-1-tommaso.merciai.xr@bp.renesas.com Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/ite-it6263.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/ite-it6263.c b/drivers/gpu/drm/bridge/ite-it6263.c index cbabd4e20d3e..3fc5c6795487 100644 --- a/drivers/gpu/drm/bridge/ite-it6263.c +++ b/drivers/gpu/drm/bridge/ite-it6263.c @@ -48,6 +48,7 @@ #define REG_COL_DEP GENMASK(1, 0) #define BIT8 FIELD_PREP(REG_COL_DEP, 1) #define OUT_MAP BIT(4) +#define VESA BIT(4) #define JEIDA 0 #define REG_DESSC_ENB BIT(6) #define DMODE BIT(7) @@ -428,12 +429,30 @@ static inline void it6263_lvds_reset(struct it6263 *it) fsleep(10000); } +static inline bool it6263_is_input_bus_fmt_valid(int input_fmt) +{ + switch (input_fmt) { + case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: + case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: + return true; + } + return false; +} + static inline void it6263_lvds_set_interface(struct it6263 *it) { + u8 fmt; + /* color depth */ regmap_write_bits(it->lvds_regmap, LVDS_REG_2C, REG_COL_DEP, BIT8); + + if (it->lvds_data_mapping == MEDIA_BUS_FMT_RGB888_1X7X4_SPWG) + fmt = VESA; + else + fmt = JEIDA; + /* output mapping */ - regmap_write_bits(it->lvds_regmap, LVDS_REG_2C, OUT_MAP, JEIDA); + regmap_write_bits(it->lvds_regmap, LVDS_REG_2C, OUT_MAP, fmt); if (it->lvds_dual_link) { regmap_write_bits(it->lvds_regmap, LVDS_REG_2C, DMODE, DISO); @@ -714,14 +733,14 @@ it6263_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, *num_input_fmts = 0; - if (it->lvds_data_mapping != MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA) + if (!it6263_is_input_bus_fmt_valid(it->lvds_data_mapping)) return NULL; input_fmts = kmalloc(sizeof(*input_fmts), GFP_KERNEL); if (!input_fmts) return NULL; - input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA; + input_fmts[0] = it->lvds_data_mapping; *num_input_fmts = 1; return input_fmts; -- cgit v1.2.3 From e22c857aed59ed3f5f3e144039ef095521f15179 Mon Sep 17 00:00:00 2001 From: Biju Das Date: Tue, 22 Oct 2024 09:24:23 +0100 Subject: drm: renesas: rz-du: Drop DU_MCR0_DPI_OE macro The DPI_OE bit is removed from the latest RZ/G2UL and RZ/G2L hardware manual. So, drop this macro. Fixes: b330f1480172 ("drm: renesas: rz-du: Add RZ/G2UL DU Support") Signed-off-by: Biju Das Reviewed-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20241022082433.32513-2-biju.das.jz@bp.renesas.com --- drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c index c4c1474d487e..6e7aac6219be 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c @@ -28,7 +28,6 @@ #include "rzg2l_du_vsp.h" #define DU_MCR0 0x00 -#define DU_MCR0_DPI_OE BIT(0) #define DU_MCR0_DI_EN BIT(8) #define DU_DITR0 0x10 @@ -217,14 +216,9 @@ static void rzg2l_du_crtc_put(struct rzg2l_du_crtc *rcrtc) static void rzg2l_du_start_stop(struct rzg2l_du_crtc *rcrtc, bool start) { - struct rzg2l_du_crtc_state *rstate = to_rzg2l_crtc_state(rcrtc->crtc.state); struct rzg2l_du_device *rcdu = rcrtc->dev; - u32 val = DU_MCR0_DI_EN; - if (rstate->outputs & BIT(RZG2L_DU_OUTPUT_DPAD0)) - val |= DU_MCR0_DPI_OE; - - writel(start ? val : 0, rcdu->mmio + DU_MCR0); + writel(start ? DU_MCR0_DI_EN : 0, rcdu->mmio + DU_MCR0); } static void rzg2l_du_crtc_start(struct rzg2l_du_crtc *rcrtc) -- cgit v1.2.3 From 68573a561362cc11d4dbfdcf97127fbf0e118896 Mon Sep 17 00:00:00 2001 From: Biju Das Date: Tue, 22 Oct 2024 09:24:24 +0100 Subject: drm: renesas: rz-du: rzg2l_du_encoder: Fix max dot clock for DPI As per the RZ/G2UL hardware manual Table 33.4 Clock List, the maximum dot clock for the DPI interface is 83.5 MHz. Add mode_valid callback to reject modes greater than 83.5 MHz. Suggested-by: Laurent Pinchart Signed-off-by: Biju Das Reviewed-by: Lad Prabhakar Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20241022082433.32513-3-biju.das.jz@bp.renesas.com --- drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c index 339cbaaea0b5..564ab4cb3d37 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include @@ -24,6 +25,22 @@ static const struct drm_encoder_funcs rzg2l_du_encoder_funcs = { }; +static enum drm_mode_status +rzg2l_du_encoder_mode_valid(struct drm_encoder *encoder, + const struct drm_display_mode *mode) +{ + struct rzg2l_du_encoder *renc = to_rzg2l_encoder(encoder); + + if (renc->output == RZG2L_DU_OUTPUT_DPAD0 && mode->clock > 83500) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + +static const struct drm_encoder_helper_funcs rzg2l_du_encoder_helper_funcs = { + .mode_valid = rzg2l_du_encoder_mode_valid, +}; + int rzg2l_du_encoder_init(struct rzg2l_du_device *rcdu, enum rzg2l_du_output output, struct device_node *enc_node) @@ -48,6 +65,7 @@ int rzg2l_du_encoder_init(struct rzg2l_du_device *rcdu, return PTR_ERR(renc); renc->output = output; + drm_encoder_helper_add(&renc->base, &rzg2l_du_encoder_helper_funcs); /* Attach the bridge to the encoder. */ ret = drm_bridge_attach(&renc->base, bridge, NULL, -- cgit v1.2.3 From 31fa2c1ca0b239f64eaf682f1685bbbd74fc0181 Mon Sep 17 00:00:00 2001 From: Jocelyn Falempe Date: Wed, 4 Dec 2024 16:45:00 +0100 Subject: drm/panic: Move drawing functions to drm_draw Move the color conversions, blit and fill functions to drm_draw.c, so that they can be re-used by drm_log. drm_draw is internal to the drm subsystem, and shouldn't be used by gpu drivers. Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-2-jfalempe@redhat.com --- drivers/gpu/drm/Kconfig | 5 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/drm_draw.c | 233 +++++++++++++++++++++++++++++++ drivers/gpu/drm/drm_draw_internal.h | 56 ++++++++ drivers/gpu/drm/drm_panic.c | 269 ++++-------------------------------- 5 files changed, 324 insertions(+), 240 deletions(-) create mode 100644 drivers/gpu/drm/drm_draw.c create mode 100644 drivers/gpu/drm/drm_draw_internal.h diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 698981a2ed51..6f1cf235073d 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -102,10 +102,15 @@ config DRM_KMS_HELPER help CRTC helpers for KMS drivers. +config DRM_DRAW + bool + depends on DRM + config DRM_PANIC bool "Display a user-friendly message when a kernel panic occurs" depends on DRM select FONT_SUPPORT + select DRM_DRAW help Enable a drm panic handler, which will display a user-friendly message when a kernel panic occurs. It's useful when using a user-space diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 1677c1f335fb..19fb370fbc56 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -91,6 +91,7 @@ drm-$(CONFIG_DRM_PRIVACY_SCREEN) += \ drm_privacy_screen_x86.o drm-$(CONFIG_DRM_ACCEL) += ../../accel/drm_accel.o drm-$(CONFIG_DRM_PANIC) += drm_panic.o +drm-$(CONFIG_DRM_DRAW) += drm_draw.o drm-$(CONFIG_DRM_PANIC_SCREEN_QR_CODE) += drm_panic_qr.o obj-$(CONFIG_DRM) += drm.o diff --git a/drivers/gpu/drm/drm_draw.c b/drivers/gpu/drm/drm_draw.c new file mode 100644 index 000000000000..cb2ad12bce57 --- /dev/null +++ b/drivers/gpu/drm/drm_draw.c @@ -0,0 +1,233 @@ +// SPDX-License-Identifier: GPL-2.0 or MIT +/* + * Copyright (c) 2023 Red Hat. + * Author: Jocelyn Falempe + */ + +#include +#include +#include + +#include + +#include "drm_draw_internal.h" + +/* + * Conversions from xrgb8888 + */ + +static u16 convert_xrgb8888_to_rgb565(u32 pix) +{ + return ((pix & 0x00F80000) >> 8) | + ((pix & 0x0000FC00) >> 5) | + ((pix & 0x000000F8) >> 3); +} + +static u16 convert_xrgb8888_to_rgba5551(u32 pix) +{ + return ((pix & 0x00f80000) >> 8) | + ((pix & 0x0000f800) >> 5) | + ((pix & 0x000000f8) >> 2) | + BIT(0); /* set alpha bit */ +} + +static u16 convert_xrgb8888_to_xrgb1555(u32 pix) +{ + return ((pix & 0x00f80000) >> 9) | + ((pix & 0x0000f800) >> 6) | + ((pix & 0x000000f8) >> 3); +} + +static u16 convert_xrgb8888_to_argb1555(u32 pix) +{ + return BIT(15) | /* set alpha bit */ + ((pix & 0x00f80000) >> 9) | + ((pix & 0x0000f800) >> 6) | + ((pix & 0x000000f8) >> 3); +} + +static u32 convert_xrgb8888_to_argb8888(u32 pix) +{ + return pix | GENMASK(31, 24); /* fill alpha bits */ +} + +static u32 convert_xrgb8888_to_xbgr8888(u32 pix) +{ + return ((pix & 0x00ff0000) >> 16) << 0 | + ((pix & 0x0000ff00) >> 8) << 8 | + ((pix & 0x000000ff) >> 0) << 16 | + ((pix & 0xff000000) >> 24) << 24; +} + +static u32 convert_xrgb8888_to_abgr8888(u32 pix) +{ + return ((pix & 0x00ff0000) >> 16) << 0 | + ((pix & 0x0000ff00) >> 8) << 8 | + ((pix & 0x000000ff) >> 0) << 16 | + GENMASK(31, 24); /* fill alpha bits */ +} + +static u32 convert_xrgb8888_to_xrgb2101010(u32 pix) +{ + pix = ((pix & 0x000000FF) << 2) | + ((pix & 0x0000FF00) << 4) | + ((pix & 0x00FF0000) << 6); + return pix | ((pix >> 8) & 0x00300C03); +} + +static u32 convert_xrgb8888_to_argb2101010(u32 pix) +{ + pix = ((pix & 0x000000FF) << 2) | + ((pix & 0x0000FF00) << 4) | + ((pix & 0x00FF0000) << 6); + return GENMASK(31, 30) /* set alpha bits */ | pix | ((pix >> 8) & 0x00300C03); +} + +static u32 convert_xrgb8888_to_abgr2101010(u32 pix) +{ + pix = ((pix & 0x00FF0000) >> 14) | + ((pix & 0x0000FF00) << 4) | + ((pix & 0x000000FF) << 22); + return GENMASK(31, 30) /* set alpha bits */ | pix | ((pix >> 8) & 0x00300C03); +} + +/** + * drm_draw_color_from_xrgb8888 - convert one pixel from xrgb8888 to the desired format + * @color: input color, in xrgb8888 format + * @format: output format + * + * Returns: + * Color in the format specified, casted to u32. + * Or 0 if the format is not supported. + */ +u32 drm_draw_color_from_xrgb8888(u32 color, u32 format) +{ + switch (format) { + case DRM_FORMAT_RGB565: + return convert_xrgb8888_to_rgb565(color); + case DRM_FORMAT_RGBA5551: + return convert_xrgb8888_to_rgba5551(color); + case DRM_FORMAT_XRGB1555: + return convert_xrgb8888_to_xrgb1555(color); + case DRM_FORMAT_ARGB1555: + return convert_xrgb8888_to_argb1555(color); + case DRM_FORMAT_RGB888: + case DRM_FORMAT_XRGB8888: + return color; + case DRM_FORMAT_ARGB8888: + return convert_xrgb8888_to_argb8888(color); + case DRM_FORMAT_XBGR8888: + return convert_xrgb8888_to_xbgr8888(color); + case DRM_FORMAT_ABGR8888: + return convert_xrgb8888_to_abgr8888(color); + case DRM_FORMAT_XRGB2101010: + return convert_xrgb8888_to_xrgb2101010(color); + case DRM_FORMAT_ARGB2101010: + return convert_xrgb8888_to_argb2101010(color); + case DRM_FORMAT_ABGR2101010: + return convert_xrgb8888_to_abgr2101010(color); + default: + WARN_ONCE(1, "Can't convert to %p4cc\n", &format); + return 0; + } +} +EXPORT_SYMBOL(drm_draw_color_from_xrgb8888); + +/* + * Blit functions + */ +void drm_draw_blit16(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + unsigned int scale, u16 fg16) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) + for (x = 0; x < width; x++) + if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) + iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, fg16); +} +EXPORT_SYMBOL(drm_draw_blit16); + +void drm_draw_blit24(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + unsigned int scale, u32 fg32) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + u32 off = y * dpitch + x * 3; + + if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) { + /* write blue-green-red to output in little endianness */ + iosys_map_wr(dmap, off, u8, (fg32 & 0x000000FF) >> 0); + iosys_map_wr(dmap, off + 1, u8, (fg32 & 0x0000FF00) >> 8); + iosys_map_wr(dmap, off + 2, u8, (fg32 & 0x00FF0000) >> 16); + } + } + } +} +EXPORT_SYMBOL(drm_draw_blit24); + +void drm_draw_blit32(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + unsigned int scale, u32 fg32) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) + for (x = 0; x < width; x++) + if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) + iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, fg32); +} +EXPORT_SYMBOL(drm_draw_blit32); + +/* + * Fill functions + */ +void drm_draw_fill16(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u16 color) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) + for (x = 0; x < width; x++) + iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, color); +} +EXPORT_SYMBOL(drm_draw_fill16); + +void drm_draw_fill24(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u16 color) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + unsigned int off = y * dpitch + x * 3; + + /* write blue-green-red to output in little endianness */ + iosys_map_wr(dmap, off, u8, (color & 0x000000FF) >> 0); + iosys_map_wr(dmap, off + 1, u8, (color & 0x0000FF00) >> 8); + iosys_map_wr(dmap, off + 2, u8, (color & 0x00FF0000) >> 16); + } + } +} +EXPORT_SYMBOL(drm_draw_fill24); + +void drm_draw_fill32(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u32 color) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) + for (x = 0; x < width; x++) + iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, color); +} +EXPORT_SYMBOL(drm_draw_fill32); diff --git a/drivers/gpu/drm/drm_draw_internal.h b/drivers/gpu/drm/drm_draw_internal.h new file mode 100644 index 000000000000..f121ee7339dc --- /dev/null +++ b/drivers/gpu/drm/drm_draw_internal.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0 or MIT */ +/* + * Copyright (c) 2023 Red Hat. + * Author: Jocelyn Falempe + */ + +#ifndef __DRM_DRAW_INTERNAL_H__ +#define __DRM_DRAW_INTERNAL_H__ + +#include +#include + +struct iosys_map; + +/* check if the pixel at coord x,y is 1 (foreground) or 0 (background) */ +static inline bool drm_draw_is_pixel_fg(const u8 *sbuf8, unsigned int spitch, int x, int y) +{ + return (sbuf8[(y * spitch) + x / 8] & (0x80 >> (x % 8))) != 0; +} + +static inline const u8 *drm_draw_get_char_bitmap(const struct font_desc *font, + char c, size_t font_pitch) +{ + return font->data + (c * font->height) * font_pitch; +} + +u32 drm_draw_color_from_xrgb8888(u32 color, u32 format); + +void drm_draw_blit16(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + unsigned int scale, u16 fg16); + +void drm_draw_blit24(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + unsigned int scale, u32 fg32); + +void drm_draw_blit32(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + unsigned int scale, u32 fg32); + +void drm_draw_fill16(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u16 color); + +void drm_draw_fill24(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u16 color); + +void drm_draw_fill32(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u32 color); + +#endif /* __DRM_DRAW_INTERNAL_H__ */ diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c index 0a9ecc1380d2..f128d345b16d 100644 --- a/drivers/gpu/drm/drm_panic.c +++ b/drivers/gpu/drm/drm_panic.c @@ -31,6 +31,7 @@ #include #include "drm_crtc_internal.h" +#include "drm_draw_internal.h" MODULE_AUTHOR("Jocelyn Falempe"); MODULE_DESCRIPTION("DRM panic handler"); @@ -139,181 +140,8 @@ device_initcall(drm_panic_setup_logo); #endif /* - * Color conversion + * Blit & Fill functions */ - -static u16 convert_xrgb8888_to_rgb565(u32 pix) -{ - return ((pix & 0x00F80000) >> 8) | - ((pix & 0x0000FC00) >> 5) | - ((pix & 0x000000F8) >> 3); -} - -static u16 convert_xrgb8888_to_rgba5551(u32 pix) -{ - return ((pix & 0x00f80000) >> 8) | - ((pix & 0x0000f800) >> 5) | - ((pix & 0x000000f8) >> 2) | - BIT(0); /* set alpha bit */ -} - -static u16 convert_xrgb8888_to_xrgb1555(u32 pix) -{ - return ((pix & 0x00f80000) >> 9) | - ((pix & 0x0000f800) >> 6) | - ((pix & 0x000000f8) >> 3); -} - -static u16 convert_xrgb8888_to_argb1555(u32 pix) -{ - return BIT(15) | /* set alpha bit */ - ((pix & 0x00f80000) >> 9) | - ((pix & 0x0000f800) >> 6) | - ((pix & 0x000000f8) >> 3); -} - -static u32 convert_xrgb8888_to_argb8888(u32 pix) -{ - return pix | GENMASK(31, 24); /* fill alpha bits */ -} - -static u32 convert_xrgb8888_to_xbgr8888(u32 pix) -{ - return ((pix & 0x00ff0000) >> 16) << 0 | - ((pix & 0x0000ff00) >> 8) << 8 | - ((pix & 0x000000ff) >> 0) << 16 | - ((pix & 0xff000000) >> 24) << 24; -} - -static u32 convert_xrgb8888_to_abgr8888(u32 pix) -{ - return ((pix & 0x00ff0000) >> 16) << 0 | - ((pix & 0x0000ff00) >> 8) << 8 | - ((pix & 0x000000ff) >> 0) << 16 | - GENMASK(31, 24); /* fill alpha bits */ -} - -static u32 convert_xrgb8888_to_xrgb2101010(u32 pix) -{ - pix = ((pix & 0x000000FF) << 2) | - ((pix & 0x0000FF00) << 4) | - ((pix & 0x00FF0000) << 6); - return pix | ((pix >> 8) & 0x00300C03); -} - -static u32 convert_xrgb8888_to_argb2101010(u32 pix) -{ - pix = ((pix & 0x000000FF) << 2) | - ((pix & 0x0000FF00) << 4) | - ((pix & 0x00FF0000) << 6); - return GENMASK(31, 30) /* set alpha bits */ | pix | ((pix >> 8) & 0x00300C03); -} - -static u32 convert_xrgb8888_to_abgr2101010(u32 pix) -{ - pix = ((pix & 0x00FF0000) >> 14) | - ((pix & 0x0000FF00) << 4) | - ((pix & 0x000000FF) << 22); - return GENMASK(31, 30) /* set alpha bits */ | pix | ((pix >> 8) & 0x00300C03); -} - -/* - * convert_from_xrgb8888 - convert one pixel from xrgb8888 to the desired format - * @color: input color, in xrgb8888 format - * @format: output format - * - * Returns: - * Color in the format specified, casted to u32. - * Or 0 if the format is not supported. - */ -static u32 convert_from_xrgb8888(u32 color, u32 format) -{ - switch (format) { - case DRM_FORMAT_RGB565: - return convert_xrgb8888_to_rgb565(color); - case DRM_FORMAT_RGBA5551: - return convert_xrgb8888_to_rgba5551(color); - case DRM_FORMAT_XRGB1555: - return convert_xrgb8888_to_xrgb1555(color); - case DRM_FORMAT_ARGB1555: - return convert_xrgb8888_to_argb1555(color); - case DRM_FORMAT_RGB888: - case DRM_FORMAT_XRGB8888: - return color; - case DRM_FORMAT_ARGB8888: - return convert_xrgb8888_to_argb8888(color); - case DRM_FORMAT_XBGR8888: - return convert_xrgb8888_to_xbgr8888(color); - case DRM_FORMAT_ABGR8888: - return convert_xrgb8888_to_abgr8888(color); - case DRM_FORMAT_XRGB2101010: - return convert_xrgb8888_to_xrgb2101010(color); - case DRM_FORMAT_ARGB2101010: - return convert_xrgb8888_to_argb2101010(color); - case DRM_FORMAT_ABGR2101010: - return convert_xrgb8888_to_abgr2101010(color); - default: - WARN_ONCE(1, "Can't convert to %p4cc\n", &format); - return 0; - } -} - -/* - * Blit & Fill - */ -/* check if the pixel at coord x,y is 1 (foreground) or 0 (background) */ -static bool drm_panic_is_pixel_fg(const u8 *sbuf8, unsigned int spitch, int x, int y) -{ - return (sbuf8[(y * spitch) + x / 8] & (0x80 >> (x % 8))) != 0; -} - -static void drm_panic_blit16(struct iosys_map *dmap, unsigned int dpitch, - const u8 *sbuf8, unsigned int spitch, - unsigned int height, unsigned int width, - unsigned int scale, u16 fg16) -{ - unsigned int y, x; - - for (y = 0; y < height; y++) - for (x = 0; x < width; x++) - if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) - iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, fg16); -} - -static void drm_panic_blit24(struct iosys_map *dmap, unsigned int dpitch, - const u8 *sbuf8, unsigned int spitch, - unsigned int height, unsigned int width, - unsigned int scale, u32 fg32) -{ - unsigned int y, x; - - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - u32 off = y * dpitch + x * 3; - - if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) { - /* write blue-green-red to output in little endianness */ - iosys_map_wr(dmap, off, u8, (fg32 & 0x000000FF) >> 0); - iosys_map_wr(dmap, off + 1, u8, (fg32 & 0x0000FF00) >> 8); - iosys_map_wr(dmap, off + 2, u8, (fg32 & 0x00FF0000) >> 16); - } - } - } -} - -static void drm_panic_blit32(struct iosys_map *dmap, unsigned int dpitch, - const u8 *sbuf8, unsigned int spitch, - unsigned int height, unsigned int width, - unsigned int scale, u32 fg32) -{ - unsigned int y, x; - - for (y = 0; y < height; y++) - for (x = 0; x < width; x++) - if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) - iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, fg32); -} - static void drm_panic_blit_pixel(struct drm_scanout_buffer *sb, struct drm_rect *clip, const u8 *sbuf8, unsigned int spitch, unsigned int scale, u32 fg_color) @@ -322,7 +150,7 @@ static void drm_panic_blit_pixel(struct drm_scanout_buffer *sb, struct drm_rect for (y = 0; y < drm_rect_height(clip); y++) for (x = 0; x < drm_rect_width(clip); x++) - if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) + if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) sb->set_pixel(sb, clip->x1 + x, clip->y1 + y, fg_color); } @@ -354,62 +182,22 @@ static void drm_panic_blit(struct drm_scanout_buffer *sb, struct drm_rect *clip, switch (sb->format->cpp[0]) { case 2: - drm_panic_blit16(&map, sb->pitch[0], sbuf8, spitch, - drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); + drm_draw_blit16(&map, sb->pitch[0], sbuf8, spitch, + drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); break; case 3: - drm_panic_blit24(&map, sb->pitch[0], sbuf8, spitch, - drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); + drm_draw_blit24(&map, sb->pitch[0], sbuf8, spitch, + drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); break; case 4: - drm_panic_blit32(&map, sb->pitch[0], sbuf8, spitch, - drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); + drm_draw_blit32(&map, sb->pitch[0], sbuf8, spitch, + drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); break; default: WARN_ONCE(1, "Can't blit with pixel width %d\n", sb->format->cpp[0]); } } -static void drm_panic_fill16(struct iosys_map *dmap, unsigned int dpitch, - unsigned int height, unsigned int width, - u16 color) -{ - unsigned int y, x; - - for (y = 0; y < height; y++) - for (x = 0; x < width; x++) - iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, color); -} - -static void drm_panic_fill24(struct iosys_map *dmap, unsigned int dpitch, - unsigned int height, unsigned int width, - u32 color) -{ - unsigned int y, x; - - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - unsigned int off = y * dpitch + x * 3; - - /* write blue-green-red to output in little endianness */ - iosys_map_wr(dmap, off, u8, (color & 0x000000FF) >> 0); - iosys_map_wr(dmap, off + 1, u8, (color & 0x0000FF00) >> 8); - iosys_map_wr(dmap, off + 2, u8, (color & 0x00FF0000) >> 16); - } - } -} - -static void drm_panic_fill32(struct iosys_map *dmap, unsigned int dpitch, - unsigned int height, unsigned int width, - u32 color) -{ - unsigned int y, x; - - for (y = 0; y < height; y++) - for (x = 0; x < width; x++) - iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, color); -} - static void drm_panic_fill_pixel(struct drm_scanout_buffer *sb, struct drm_rect *clip, u32 color) @@ -442,27 +230,22 @@ static void drm_panic_fill(struct drm_scanout_buffer *sb, struct drm_rect *clip, switch (sb->format->cpp[0]) { case 2: - drm_panic_fill16(&map, sb->pitch[0], drm_rect_height(clip), - drm_rect_width(clip), color); + drm_draw_fill16(&map, sb->pitch[0], drm_rect_height(clip), + drm_rect_width(clip), color); break; case 3: - drm_panic_fill24(&map, sb->pitch[0], drm_rect_height(clip), - drm_rect_width(clip), color); + drm_draw_fill24(&map, sb->pitch[0], drm_rect_height(clip), + drm_rect_width(clip), color); break; case 4: - drm_panic_fill32(&map, sb->pitch[0], drm_rect_height(clip), - drm_rect_width(clip), color); + drm_draw_fill32(&map, sb->pitch[0], drm_rect_height(clip), + drm_rect_width(clip), color); break; default: WARN_ONCE(1, "Can't fill with pixel width %d\n", sb->format->cpp[0]); } } -static const u8 *get_char_bitmap(const struct font_desc *font, char c, size_t font_pitch) -{ - return font->data + (c * font->height) * font_pitch; -} - static unsigned int get_max_line_len(const struct drm_panic_line *lines, int len) { int i; @@ -501,7 +284,7 @@ static void draw_txt_rectangle(struct drm_scanout_buffer *sb, rec.x1 += (drm_rect_width(clip) - (line_len * font->width)) / 2; for (j = 0; j < line_len; j++) { - src = get_char_bitmap(font, msg[i].txt[j], font_pitch); + src = drm_draw_get_char_bitmap(font, msg[i].txt[j], font_pitch); rec.x2 = rec.x1 + font->width; drm_panic_blit(sb, &rec, src, font_pitch, 1, color); rec.x1 += font->width; @@ -533,8 +316,10 @@ static void drm_panic_logo_draw(struct drm_scanout_buffer *sb, struct drm_rect * static void draw_panic_static_user(struct drm_scanout_buffer *sb) { - u32 fg_color = convert_from_xrgb8888(CONFIG_DRM_PANIC_FOREGROUND_COLOR, sb->format->format); - u32 bg_color = convert_from_xrgb8888(CONFIG_DRM_PANIC_BACKGROUND_COLOR, sb->format->format); + u32 fg_color = drm_draw_color_from_xrgb8888(CONFIG_DRM_PANIC_FOREGROUND_COLOR, + sb->format->format); + u32 bg_color = drm_draw_color_from_xrgb8888(CONFIG_DRM_PANIC_BACKGROUND_COLOR, + sb->format->format); const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); struct drm_rect r_screen, r_logo, r_msg; unsigned int msg_width, msg_height; @@ -600,8 +385,10 @@ static int draw_line_with_wrap(struct drm_scanout_buffer *sb, const struct font_ */ static void draw_panic_static_kmsg(struct drm_scanout_buffer *sb) { - u32 fg_color = convert_from_xrgb8888(CONFIG_DRM_PANIC_FOREGROUND_COLOR, sb->format->format); - u32 bg_color = convert_from_xrgb8888(CONFIG_DRM_PANIC_BACKGROUND_COLOR, sb->format->format); + u32 fg_color = drm_draw_color_from_xrgb8888(CONFIG_DRM_PANIC_FOREGROUND_COLOR, + sb->format->format); + u32 bg_color = drm_draw_color_from_xrgb8888(CONFIG_DRM_PANIC_BACKGROUND_COLOR, + sb->format->format); const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); struct drm_rect r_screen = DRM_RECT_INIT(0, 0, sb->width, sb->height); struct kmsg_dump_iter iter; @@ -791,8 +578,10 @@ static int drm_panic_get_qr_code(u8 **qr_image) */ static int _draw_panic_static_qr_code(struct drm_scanout_buffer *sb) { - u32 fg_color = convert_from_xrgb8888(CONFIG_DRM_PANIC_FOREGROUND_COLOR, sb->format->format); - u32 bg_color = convert_from_xrgb8888(CONFIG_DRM_PANIC_BACKGROUND_COLOR, sb->format->format); + u32 fg_color = drm_draw_color_from_xrgb8888(CONFIG_DRM_PANIC_FOREGROUND_COLOR, + sb->format->format); + u32 bg_color = drm_draw_color_from_xrgb8888(CONFIG_DRM_PANIC_BACKGROUND_COLOR, + sb->format->format); const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); struct drm_rect r_screen, r_logo, r_msg, r_qr, r_qr_canvas; unsigned int max_qr_size, scale; @@ -878,7 +667,7 @@ static bool drm_panic_is_format_supported(const struct drm_format_info *format) { if (format->num_planes != 1) return false; - return convert_from_xrgb8888(0xffffff, format->format) != 0; + return drm_draw_color_from_xrgb8888(0xffffff, format->format) != 0; } static void draw_panic_dispatch(struct drm_scanout_buffer *sb) -- cgit v1.2.3 From f7b42442c4ac142ab5e261858cec48eb6c9c1567 Mon Sep 17 00:00:00 2001 From: Jocelyn Falempe Date: Wed, 4 Dec 2024 16:45:01 +0100 Subject: drm/log: Introduce a new boot logger to draw the kmsg on the screen drm_log is a simple logger that uses the drm_client API to print the kmsg boot log on the screen. This is not a full replacement to fbcon, as it will only print the kmsg. It will never handle user input, or a terminal because this is better done in userspace. Design decisions: * It uses the drm_client API, so it should work on all drm drivers from the start. * It doesn't scroll the message, that way it doesn't need to redraw the whole screen for each new message. It also means it doesn't have to keep drawn messages in memory, to redraw them when scrolling. * It uses the new non-blocking console API, so it should work well with PREEMPT_RT. This patch also adds a Kconfig menu to select the drm client to use. It can be overwritten on the kernel command line with: drm_client_lib.active=log or drm_client_lib.active=fbdev Signed-off-by: Jocelyn Falempe Reviewed-by: John Ogness # console API Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-3-jfalempe@redhat.com --- drivers/gpu/drm/clients/Kconfig | 48 ++++ drivers/gpu/drm/clients/Makefile | 3 + drivers/gpu/drm/clients/drm_client_internal.h | 6 + drivers/gpu/drm/clients/drm_client_setup.c | 29 +- drivers/gpu/drm/clients/drm_log.c | 370 ++++++++++++++++++++++++++ 5 files changed, 452 insertions(+), 4 deletions(-) create mode 100644 drivers/gpu/drm/clients/drm_log.c diff --git a/drivers/gpu/drm/clients/Kconfig b/drivers/gpu/drm/clients/Kconfig index 01ad3b000130..c18decc90200 100644 --- a/drivers/gpu/drm/clients/Kconfig +++ b/drivers/gpu/drm/clients/Kconfig @@ -12,6 +12,7 @@ config DRM_CLIENT_LIB config DRM_CLIENT_SELECTION tristate depends on DRM + select DRM_CLIENT_LIB if DRM_CLIENT_LOG select DRM_CLIENT_LIB if DRM_FBDEV_EMULATION help Drivers that support in-kernel DRM clients have to select this @@ -70,4 +71,51 @@ config DRM_FBDEV_LEAK_PHYS_SMEM If in doubt, say "N" or spread the word to your closed source library vendor. +config DRM_CLIENT_LOG + bool "Print the kernel boot message on the screen" + depends on DRM_CLIENT_SELECTION + select DRM_CLIENT + select DRM_CLIENT_SETUP + select DRM_DRAW + help + This enable a drm logger, that will print the kernel messages to the + screen until the userspace is ready to take over. + + If you only need logs, but no terminal, or if you prefer userspace + terminal, say "Y". + +choice + prompt "Default DRM Client" + depends on DRM_CLIENT_SELECTION + default DRM_CLIENT_DEFAULT_FBDEV + help + Selects the default drm client. + + The selection made here can be overridden by using the kernel + command line 'drm_client_lib.active=fbdev' option. + +config DRM_CLIENT_DEFAULT_FBDEV + bool "fbdev" + depends on DRM_FBDEV_EMULATION + help + Use fbdev emulation as default drm client. This is needed to have + fbcon on top of a drm driver. + +config DRM_CLIENT_DEFAULT_LOG + bool "log" + depends on DRM_CLIENT_LOG + help + Use drm log as default drm client. This will display boot logs on the + screen, but doesn't implement a full terminal. For that you will need + a userspace terminal using drm/kms. + +endchoice + +config DRM_CLIENT_DEFAULT + string + depends on DRM_CLIENT + default "fbdev" if DRM_CLIENT_DEFAULT_FBDEV + default "log" if DRM_CLIENT_DEFAULT_LOG + default "" + endmenu diff --git a/drivers/gpu/drm/clients/Makefile b/drivers/gpu/drm/clients/Makefile index 1d004ec92e1e..c16addbc327f 100644 --- a/drivers/gpu/drm/clients/Makefile +++ b/drivers/gpu/drm/clients/Makefile @@ -1,5 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 +subdir-ccflags-y += -I$(src)/.. + drm_client_lib-y := drm_client_setup.o +drm_client_lib-$(CONFIG_DRM_CLIENT_LOG) += drm_log.o drm_client_lib-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_client.o obj-$(CONFIG_DRM_CLIENT_LIB) += drm_client_lib.o diff --git a/drivers/gpu/drm/clients/drm_client_internal.h b/drivers/gpu/drm/clients/drm_client_internal.h index 23258934956a..6dc078bf6503 100644 --- a/drivers/gpu/drm/clients/drm_client_internal.h +++ b/drivers/gpu/drm/clients/drm_client_internal.h @@ -16,4 +16,10 @@ static inline int drm_fbdev_client_setup(struct drm_device *dev, } #endif +#ifdef CONFIG_DRM_CLIENT_LOG +void drm_log_register(struct drm_device *dev); +#else +static inline void drm_log_register(struct drm_device *dev) {} +#endif + #endif diff --git a/drivers/gpu/drm/clients/drm_client_setup.c b/drivers/gpu/drm/clients/drm_client_setup.c index 4b211a4812b5..e17265039ca8 100644 --- a/drivers/gpu/drm/clients/drm_client_setup.c +++ b/drivers/gpu/drm/clients/drm_client_setup.c @@ -7,6 +7,12 @@ #include "drm_client_internal.h" +static char drm_client_default[16] = CONFIG_DRM_CLIENT_DEFAULT; +module_param_string(active, drm_client_default, sizeof(drm_client_default), 0444); +MODULE_PARM_DESC(active, + "Choose which drm client to start, default is" + CONFIG_DRM_CLIENT_DEFAULT "]"); + /** * drm_client_setup() - Setup in-kernel DRM clients * @dev: DRM device @@ -25,11 +31,26 @@ */ void drm_client_setup(struct drm_device *dev, const struct drm_format_info *format) { - int ret; - ret = drm_fbdev_client_setup(dev, format); - if (ret) - drm_warn(dev, "Failed to set up DRM client; error %d\n", ret); +#ifdef CONFIG_DRM_FBDEV_EMULATION + if (!strcmp(drm_client_default, "fbdev")) { + int ret; + + ret = drm_fbdev_client_setup(dev, format); + if (ret) + drm_warn(dev, "Failed to set up DRM client; error %d\n", ret); + return; + } +#endif + +#ifdef CONFIG_DRM_CLIENT_LOG + if (!strcmp(drm_client_default, "log")) { + drm_log_register(dev); + return; + } +#endif + if (strcmp(drm_client_default, "")) + drm_warn(dev, "Unknown DRM client %s\n", drm_client_default); } EXPORT_SYMBOL(drm_client_setup); diff --git a/drivers/gpu/drm/clients/drm_log.c b/drivers/gpu/drm/clients/drm_log.c new file mode 100644 index 000000000000..4e07bff6c864 --- /dev/null +++ b/drivers/gpu/drm/clients/drm_log.c @@ -0,0 +1,370 @@ +// SPDX-License-Identifier: GPL-2.0 or MIT +/* + * Copyright (c) 2024 Red Hat. + * Author: Jocelyn Falempe + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "drm_client_internal.h" +#include "drm_draw_internal.h" + +MODULE_AUTHOR("Jocelyn Falempe"); +MODULE_DESCRIPTION("DRM boot logger"); +MODULE_LICENSE("GPL"); + +/** + * DOC: overview + * + * This is a simple graphic logger, to print the kernel message on screen, until + * a userspace application is able to take over. + * It is only for debugging purpose. + */ + +struct drm_log_scanout { + struct drm_client_buffer *buffer; + const struct font_desc *font; + u32 rows; + u32 columns; + u32 line; + u32 format; + u32 px_width; + u32 front_color; +}; + +struct drm_log { + struct mutex lock; + struct drm_client_dev client; + struct console con; + bool probed; + u32 n_scanout; + struct drm_log_scanout *scanout; +}; + +static struct drm_log *client_to_drm_log(struct drm_client_dev *client) +{ + return container_of(client, struct drm_log, client); +} + +static struct drm_log *console_to_drm_log(struct console *con) +{ + return container_of(con, struct drm_log, con); +} + +static void drm_log_blit(struct iosys_map *dst, unsigned int dst_pitch, + const u8 *src, unsigned int src_pitch, + u32 height, u32 width, u32 scale, u32 px_width, u32 color) +{ + switch (px_width) { + case 2: + drm_draw_blit16(dst, dst_pitch, src, src_pitch, height, width, scale, color); + break; + case 3: + drm_draw_blit24(dst, dst_pitch, src, src_pitch, height, width, scale, color); + break; + case 4: + drm_draw_blit32(dst, dst_pitch, src, src_pitch, height, width, scale, color); + break; + default: + WARN_ONCE(1, "Can't blit with pixel width %d\n", px_width); + } +} + +static void drm_log_clear_line(struct drm_log_scanout *scanout, u32 line) +{ + struct drm_framebuffer *fb = scanout->buffer->fb; + unsigned long height = scanout->font->height; + struct iosys_map map; + struct drm_rect r = DRM_RECT_INIT(0, line * height, fb->width, height); + + if (drm_client_buffer_vmap_local(scanout->buffer, &map)) + return; + iosys_map_memset(&map, r.y1 * fb->pitches[0], 0, height * fb->pitches[0]); + drm_client_buffer_vunmap_local(scanout->buffer); + drm_client_framebuffer_flush(scanout->buffer, &r); +} + +static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s, + unsigned int len) +{ + struct drm_framebuffer *fb = scanout->buffer->fb; + struct iosys_map map; + const struct font_desc *font = scanout->font; + size_t font_pitch = DIV_ROUND_UP(font->width, 8); + const u8 *src; + u32 px_width = fb->format->cpp[0]; + struct drm_rect r = DRM_RECT_INIT(0, scanout->line * font->height, + fb->width, (scanout->line + 1) * font->height); + u32 i; + + if (drm_client_buffer_vmap_local(scanout->buffer, &map)) + return; + + iosys_map_incr(&map, r.y1 * fb->pitches[0]); + for (i = 0; i < len && i < scanout->columns; i++) { + src = drm_draw_get_char_bitmap(font, s[i], font_pitch); + drm_log_blit(&map, fb->pitches[0], src, font_pitch, font->height, font->width, + 1, px_width, scanout->front_color); + iosys_map_incr(&map, font->width * px_width); + } + + scanout->line++; + if (scanout->line >= scanout->rows) + scanout->line = 0; + drm_client_buffer_vunmap_local(scanout->buffer); + drm_client_framebuffer_flush(scanout->buffer, &r); +} + +static void drm_log_draw_new_line(struct drm_log_scanout *scanout, + const char *s, unsigned int len) +{ + if (scanout->line == 0) { + drm_log_clear_line(scanout, 0); + drm_log_clear_line(scanout, 1); + drm_log_clear_line(scanout, 2); + } else if (scanout->line + 2 < scanout->rows) + drm_log_clear_line(scanout, scanout->line + 2); + + drm_log_draw_line(scanout, s, len); +} + +static void drm_log_draw_kmsg_record(struct drm_log_scanout *scanout, + const char *s, unsigned int len) +{ + /* do not print the ending \n character */ + if (s[len - 1] == '\n') + len--; + + while (len > scanout->columns) { + drm_log_draw_new_line(scanout, s, scanout->columns); + s += scanout->columns; + len -= scanout->columns; + } + if (len) + drm_log_draw_new_line(scanout, s, len); +} + +static u32 drm_log_find_usable_format(struct drm_plane *plane) +{ + int i; + + for (i = 0; i < plane->format_count; i++) + if (drm_draw_color_from_xrgb8888(0xffffff, plane->format_types[i]) != 0) + return plane->format_types[i]; + return DRM_FORMAT_INVALID; +} + +static int drm_log_setup_modeset(struct drm_client_dev *client, + struct drm_mode_set *mode_set, + struct drm_log_scanout *scanout) +{ + struct drm_crtc *crtc = mode_set->crtc; + u32 width = mode_set->mode->hdisplay; + u32 height = mode_set->mode->vdisplay; + u32 format; + + scanout->font = get_default_font(width, height, NULL, NULL); + if (!scanout->font) + return -ENOENT; + + format = drm_log_find_usable_format(crtc->primary); + if (format == DRM_FORMAT_INVALID) + return -EINVAL; + + scanout->buffer = drm_client_framebuffer_create(client, width, height, format); + if (IS_ERR(scanout->buffer)) { + drm_warn(client->dev, "drm_log can't create framebuffer %d %d %p4cc\n", + width, height, &format); + return -ENOMEM; + } + mode_set->fb = scanout->buffer->fb; + scanout->rows = height / scanout->font->height; + scanout->columns = width / scanout->font->width; + scanout->front_color = drm_draw_color_from_xrgb8888(0xffffff, format); + return 0; +} + +static int drm_log_count_modeset(struct drm_client_dev *client) +{ + struct drm_mode_set *mode_set; + int count = 0; + + mutex_lock(&client->modeset_mutex); + drm_client_for_each_modeset(mode_set, client) + count++; + mutex_unlock(&client->modeset_mutex); + return count; +} + +static void drm_log_init_client(struct drm_log *dlog) +{ + struct drm_client_dev *client = &dlog->client; + struct drm_mode_set *mode_set; + int i, max_modeset; + int n_modeset = 0; + + dlog->probed = true; + + if (drm_client_modeset_probe(client, 0, 0)) + return; + + max_modeset = drm_log_count_modeset(client); + if (!max_modeset) + return; + + dlog->scanout = kcalloc(max_modeset, sizeof(*dlog->scanout), GFP_KERNEL); + if (!dlog->scanout) + return; + + mutex_lock(&client->modeset_mutex); + drm_client_for_each_modeset(mode_set, client) { + if (!mode_set->mode) + continue; + if (drm_log_setup_modeset(client, mode_set, &dlog->scanout[n_modeset])) + continue; + n_modeset++; + } + mutex_unlock(&client->modeset_mutex); + if (n_modeset == 0) + goto err_nomodeset; + + if (drm_client_modeset_commit(client)) + goto err_failed_commit; + + dlog->n_scanout = n_modeset; + return; + +err_failed_commit: + for (i = 0; i < n_modeset; i++) + drm_client_framebuffer_delete(dlog->scanout[i].buffer); + +err_nomodeset: + kfree(dlog->scanout); + dlog->scanout = NULL; +} + +static void drm_log_free_scanout(struct drm_client_dev *client) +{ + struct drm_log *dlog = client_to_drm_log(client); + int i; + + if (dlog->n_scanout) { + for (i = 0; i < dlog->n_scanout; i++) + drm_client_framebuffer_delete(dlog->scanout[i].buffer); + dlog->n_scanout = 0; + kfree(dlog->scanout); + dlog->scanout = NULL; + } +} + +static void drm_log_client_unregister(struct drm_client_dev *client) +{ + struct drm_log *dlog = client_to_drm_log(client); + struct drm_device *dev = client->dev; + + unregister_console(&dlog->con); + + mutex_lock(&dlog->lock); + drm_log_free_scanout(client); + drm_client_release(client); + mutex_unlock(&dlog->lock); + kfree(dlog); + drm_dbg(dev, "Unregistered with drm log\n"); +} + +static int drm_log_client_hotplug(struct drm_client_dev *client) +{ + struct drm_log *dlog = client_to_drm_log(client); + + mutex_lock(&dlog->lock); + drm_log_free_scanout(client); + dlog->probed = false; + mutex_unlock(&dlog->lock); + return 0; +} + +static const struct drm_client_funcs drm_log_client_funcs = { + .owner = THIS_MODULE, + .unregister = drm_log_client_unregister, + .hotplug = drm_log_client_hotplug, +}; + +static void drm_log_write_thread(struct console *con, struct nbcon_write_context *wctxt) +{ + struct drm_log *dlog = console_to_drm_log(con); + int i; + + if (!dlog->probed) + drm_log_init_client(dlog); + + for (i = 0; i < dlog->n_scanout; i++) + drm_log_draw_kmsg_record(&dlog->scanout[i], wctxt->outbuf, wctxt->len); +} + +static void drm_log_lock(struct console *con, unsigned long *flags) +{ + struct drm_log *dlog = console_to_drm_log(con); + + mutex_lock(&dlog->lock); + migrate_disable(); +} + +static void drm_log_unlock(struct console *con, unsigned long flags) +{ + struct drm_log *dlog = console_to_drm_log(con); + + migrate_enable(); + mutex_unlock(&dlog->lock); +} + +static void drm_log_register_console(struct console *con) +{ + strscpy(con->name, "drm_log"); + con->write_thread = drm_log_write_thread; + con->device_lock = drm_log_lock; + con->device_unlock = drm_log_unlock; + con->flags = CON_PRINTBUFFER | CON_NBCON; + con->index = -1; + + register_console(con); +} + +/** + * drm_log_register() - Register a drm device to drm_log + * @dev: the drm device to register. + */ +void drm_log_register(struct drm_device *dev) +{ + struct drm_log *new; + + new = kzalloc(sizeof(*new), GFP_KERNEL); + if (!new) + goto err_warn; + + mutex_init(&new->lock); + if (drm_client_init(dev, &new->client, "drm_log", &drm_log_client_funcs)) + goto err_free; + + drm_client_register(&new->client); + + drm_log_register_console(&new->con); + + drm_dbg(dev, "Registered with drm log as %s\n", new->con.name); + return; + +err_free: + kfree(new); +err_warn: + drm_warn(dev, "Failed to register with drm log\n"); +} -- cgit v1.2.3 From eb30b4453e4c29bbe2ff855c08b13f332b3505aa Mon Sep 17 00:00:00 2001 From: Jocelyn Falempe Date: Wed, 4 Dec 2024 16:45:02 +0100 Subject: drm/log: Do not draw if drm_master is taken When userspace takes drm_master, the drm_client buffer is no more visible, so drm_log shouldn't waste CPU cycle to draw on it. Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-4-jfalempe@redhat.com --- drivers/gpu/drm/clients/drm_log.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/clients/drm_log.c b/drivers/gpu/drm/clients/drm_log.c index 4e07bff6c864..a933da024b1a 100644 --- a/drivers/gpu/drm/clients/drm_log.c +++ b/drivers/gpu/drm/clients/drm_log.c @@ -19,6 +19,7 @@ #include "drm_client_internal.h" #include "drm_draw_internal.h" +#include "drm_internal.h" MODULE_AUTHOR("Jocelyn Falempe"); MODULE_DESCRIPTION("DRM boot logger"); @@ -308,8 +309,13 @@ static void drm_log_write_thread(struct console *con, struct nbcon_write_context if (!dlog->probed) drm_log_init_client(dlog); - for (i = 0; i < dlog->n_scanout; i++) - drm_log_draw_kmsg_record(&dlog->scanout[i], wctxt->outbuf, wctxt->len); + /* Check that we are still the master before drawing */ + if (drm_master_internal_acquire(dlog->client.dev)) { + drm_master_internal_release(dlog->client.dev); + + for (i = 0; i < dlog->n_scanout; i++) + drm_log_draw_kmsg_record(&dlog->scanout[i], wctxt->outbuf, wctxt->len); + } } static void drm_log_lock(struct console *con, unsigned long *flags) -- cgit v1.2.3 From 25e2c2a3eff55683bbe77b108db2a7e389246666 Mon Sep 17 00:00:00 2001 From: Jocelyn Falempe Date: Wed, 4 Dec 2024 16:45:03 +0100 Subject: drm/log: Color the timestamp, to improve readability Color the timesamp prefix, similar to dmesg. Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-5-jfalempe@redhat.com --- drivers/gpu/drm/clients/drm_log.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/clients/drm_log.c b/drivers/gpu/drm/clients/drm_log.c index a933da024b1a..5a995742aec5 100644 --- a/drivers/gpu/drm/clients/drm_log.c +++ b/drivers/gpu/drm/clients/drm_log.c @@ -42,6 +42,7 @@ struct drm_log_scanout { u32 format; u32 px_width; u32 front_color; + u32 prefix_color; }; struct drm_log { @@ -97,7 +98,7 @@ static void drm_log_clear_line(struct drm_log_scanout *scanout, u32 line) } static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s, - unsigned int len) + unsigned int len, unsigned int prefix_len) { struct drm_framebuffer *fb = scanout->buffer->fb; struct iosys_map map; @@ -114,9 +115,10 @@ static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s, iosys_map_incr(&map, r.y1 * fb->pitches[0]); for (i = 0; i < len && i < scanout->columns; i++) { + u32 color = (i < prefix_len) ? scanout->prefix_color : scanout->front_color; src = drm_draw_get_char_bitmap(font, s[i], font_pitch); drm_log_blit(&map, fb->pitches[0], src, font_pitch, font->height, font->width, - 1, px_width, scanout->front_color); + 1, px_width, color); iosys_map_incr(&map, font->width * px_width); } @@ -128,7 +130,7 @@ static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s, } static void drm_log_draw_new_line(struct drm_log_scanout *scanout, - const char *s, unsigned int len) + const char *s, unsigned int len, unsigned int prefix_len) { if (scanout->line == 0) { drm_log_clear_line(scanout, 0); @@ -137,23 +139,35 @@ static void drm_log_draw_new_line(struct drm_log_scanout *scanout, } else if (scanout->line + 2 < scanout->rows) drm_log_clear_line(scanout, scanout->line + 2); - drm_log_draw_line(scanout, s, len); + drm_log_draw_line(scanout, s, len, prefix_len); } +/* + * Depends on print_time() in printk.c + * Timestamp is written with "[%5lu.%06lu]" + */ +#define TS_PREFIX_LEN 13 + static void drm_log_draw_kmsg_record(struct drm_log_scanout *scanout, const char *s, unsigned int len) { + u32 prefix_len = 0; + + if (len > TS_PREFIX_LEN && s[0] == '[' && s[6] == '.' && s[TS_PREFIX_LEN] == ']') + prefix_len = TS_PREFIX_LEN + 1; + /* do not print the ending \n character */ if (s[len - 1] == '\n') len--; while (len > scanout->columns) { - drm_log_draw_new_line(scanout, s, scanout->columns); + drm_log_draw_new_line(scanout, s, scanout->columns, prefix_len); s += scanout->columns; len -= scanout->columns; + prefix_len = 0; } if (len) - drm_log_draw_new_line(scanout, s, len); + drm_log_draw_new_line(scanout, s, len, prefix_len); } static u32 drm_log_find_usable_format(struct drm_plane *plane) @@ -193,6 +207,7 @@ static int drm_log_setup_modeset(struct drm_client_dev *client, scanout->rows = height / scanout->font->height; scanout->columns = width / scanout->font->width; scanout->front_color = drm_draw_color_from_xrgb8888(0xffffff, format); + scanout->prefix_color = drm_draw_color_from_xrgb8888(0x4e9a06, format); return 0; } -- cgit v1.2.3 From cd41b4489c27058570255fe0594a33c25e4bd209 Mon Sep 17 00:00:00 2001 From: Jocelyn Falempe Date: Wed, 4 Dec 2024 16:45:04 +0100 Subject: drm/log: Implement suspend/resume Normally the console is already suspended when the graphic driver suspend callback is called, but if the parameter no_console_suspend is set, it might still be active. So call console_stop()/console_start() in the suspend/resume callbacks, to make sure it won't try to write to the framebuffer while the graphic driver is suspended. Signed-off-by: Jocelyn Falempe Reviewed-by: John Ogness Acked-by: Petr Mladek Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-6-jfalempe@redhat.com --- drivers/gpu/drm/clients/drm_log.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/gpu/drm/clients/drm_log.c b/drivers/gpu/drm/clients/drm_log.c index 5a995742aec5..d5f9c679f2c0 100644 --- a/drivers/gpu/drm/clients/drm_log.c +++ b/drivers/gpu/drm/clients/drm_log.c @@ -310,10 +310,30 @@ static int drm_log_client_hotplug(struct drm_client_dev *client) return 0; } +static int drm_log_client_suspend(struct drm_client_dev *client, bool _console_lock) +{ + struct drm_log *dlog = client_to_drm_log(client); + + console_stop(&dlog->con); + + return 0; +} + +static int drm_log_client_resume(struct drm_client_dev *client, bool _console_lock) +{ + struct drm_log *dlog = client_to_drm_log(client); + + console_start(&dlog->con); + + return 0; +} + static const struct drm_client_funcs drm_log_client_funcs = { .owner = THIS_MODULE, .unregister = drm_log_client_unregister, .hotplug = drm_log_client_hotplug, + .suspend = drm_log_client_suspend, + .resume = drm_log_client_resume, }; static void drm_log_write_thread(struct console *con, struct nbcon_write_context *wctxt) -- cgit v1.2.3 From 8a4b913df427b8f900bcc7849cc15a7b81628d57 Mon Sep 17 00:00:00 2001 From: Jocelyn Falempe Date: Wed, 4 Dec 2024 16:45:05 +0100 Subject: drm/log: Add integer scaling support Add a module parameter, to increase the font size for HiDPI screen. Even with CONFIG_FONT_TER16x32, it can still be a bit small to read. In this case, adding drm_log.scale=2 to your kernel command line will double the character size. Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-7-jfalempe@redhat.com --- drivers/gpu/drm/clients/drm_log.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/clients/drm_log.c b/drivers/gpu/drm/clients/drm_log.c index d5f9c679f2c0..379850c83e51 100644 --- a/drivers/gpu/drm/clients/drm_log.c +++ b/drivers/gpu/drm/clients/drm_log.c @@ -25,6 +25,10 @@ MODULE_AUTHOR("Jocelyn Falempe"); MODULE_DESCRIPTION("DRM boot logger"); MODULE_LICENSE("GPL"); +static unsigned int scale = 1; +module_param(scale, uint, 0444); +MODULE_PARM_DESC(scale, "Integer scaling factor for drm_log, default is 1"); + /** * DOC: overview * @@ -38,6 +42,8 @@ struct drm_log_scanout { const struct font_desc *font; u32 rows; u32 columns; + u32 scaled_font_h; + u32 scaled_font_w; u32 line; u32 format; u32 px_width; @@ -66,7 +72,7 @@ static struct drm_log *console_to_drm_log(struct console *con) static void drm_log_blit(struct iosys_map *dst, unsigned int dst_pitch, const u8 *src, unsigned int src_pitch, - u32 height, u32 width, u32 scale, u32 px_width, u32 color) + u32 height, u32 width, u32 px_width, u32 color) { switch (px_width) { case 2: @@ -86,7 +92,7 @@ static void drm_log_blit(struct iosys_map *dst, unsigned int dst_pitch, static void drm_log_clear_line(struct drm_log_scanout *scanout, u32 line) { struct drm_framebuffer *fb = scanout->buffer->fb; - unsigned long height = scanout->font->height; + unsigned long height = scanout->scaled_font_h; struct iosys_map map; struct drm_rect r = DRM_RECT_INIT(0, line * height, fb->width, height); @@ -106,8 +112,8 @@ static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s, size_t font_pitch = DIV_ROUND_UP(font->width, 8); const u8 *src; u32 px_width = fb->format->cpp[0]; - struct drm_rect r = DRM_RECT_INIT(0, scanout->line * font->height, - fb->width, (scanout->line + 1) * font->height); + struct drm_rect r = DRM_RECT_INIT(0, scanout->line * scanout->scaled_font_h, + fb->width, (scanout->line + 1) * scanout->scaled_font_h); u32 i; if (drm_client_buffer_vmap_local(scanout->buffer, &map)) @@ -117,9 +123,10 @@ static void drm_log_draw_line(struct drm_log_scanout *scanout, const char *s, for (i = 0; i < len && i < scanout->columns; i++) { u32 color = (i < prefix_len) ? scanout->prefix_color : scanout->front_color; src = drm_draw_get_char_bitmap(font, s[i], font_pitch); - drm_log_blit(&map, fb->pitches[0], src, font_pitch, font->height, font->width, - 1, px_width, color); - iosys_map_incr(&map, font->width * px_width); + drm_log_blit(&map, fb->pitches[0], src, font_pitch, + scanout->scaled_font_h, scanout->scaled_font_w, + px_width, color); + iosys_map_incr(&map, scanout->scaled_font_w * px_width); } scanout->line++; @@ -204,8 +211,10 @@ static int drm_log_setup_modeset(struct drm_client_dev *client, return -ENOMEM; } mode_set->fb = scanout->buffer->fb; - scanout->rows = height / scanout->font->height; - scanout->columns = width / scanout->font->width; + scanout->scaled_font_h = scanout->font->height * scale; + scanout->scaled_font_w = scanout->font->width * scale; + scanout->rows = height / scanout->scaled_font_h; + scanout->columns = width / scanout->scaled_font_w; scanout->front_color = drm_draw_color_from_xrgb8888(0xffffff, format); scanout->prefix_color = drm_draw_color_from_xrgb8888(0x4e9a06, format); return 0; -- cgit v1.2.3 From 0d6d86253fef1e6b1e38a54db14bcbea9d0d9ca4 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 10 Dec 2024 00:10:19 +0100 Subject: drm/bridge/synopsys: Add MIPI DSI2 host controller bridge Add a Synopsys Designware MIPI DSI host DRM bridge driver for their DSI2 host controller, based on the Rockchip version from the driver rockchip/dw-mipi-dsi2.c in their vendor-kernel with phy & bridge APIs. While the driver is heavily modelled after the previous IP, the register set of this DSI2 controller is completely different and there are also additional properties like the variable-width phy interface. Tested-by: Daniel Semkowicz Tested-by: Dmitry Yashin Reviewed-by: Neil Armstrong Signed-off-by: Heiko Stuebner Reviewed-by: Andy Yan Signed-off-by: Heiko Stuebner Link: https://patchwork.freedesktop.org/patch/msgid/20241209231021.2180582-2-heiko@sntech.de --- drivers/gpu/drm/bridge/synopsys/Kconfig | 6 + drivers/gpu/drm/bridge/synopsys/Makefile | 1 + drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c | 1030 ++++++++++++++++++++++++ include/drm/bridge/dw_mipi_dsi2.h | 95 +++ 4 files changed, 1132 insertions(+) create mode 100644 drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c create mode 100644 include/drm/bridge/dw_mipi_dsi2.h diff --git a/drivers/gpu/drm/bridge/synopsys/Kconfig b/drivers/gpu/drm/bridge/synopsys/Kconfig index ca416dab156d..f3ab2f985f8c 100644 --- a/drivers/gpu/drm/bridge/synopsys/Kconfig +++ b/drivers/gpu/drm/bridge/synopsys/Kconfig @@ -59,3 +59,9 @@ config DRM_DW_MIPI_DSI select DRM_KMS_HELPER select DRM_MIPI_DSI select DRM_PANEL_BRIDGE + +config DRM_DW_MIPI_DSI2 + tristate + select DRM_KMS_HELPER + select DRM_MIPI_DSI + select DRM_PANEL_BRIDGE diff --git a/drivers/gpu/drm/bridge/synopsys/Makefile b/drivers/gpu/drm/bridge/synopsys/Makefile index 9869d9651ed1..9dc376d220ad 100644 --- a/drivers/gpu/drm/bridge/synopsys/Makefile +++ b/drivers/gpu/drm/bridge/synopsys/Makefile @@ -8,3 +8,4 @@ obj-$(CONFIG_DRM_DW_HDMI_CEC) += dw-hdmi-cec.o obj-$(CONFIG_DRM_DW_HDMI_QP) += dw-hdmi-qp.o obj-$(CONFIG_DRM_DW_MIPI_DSI) += dw-mipi-dsi.o +obj-$(CONFIG_DRM_DW_MIPI_DSI2) += dw-mipi-dsi2.o diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c new file mode 100644 index 000000000000..d7569bf2d9c3 --- /dev/null +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c @@ -0,0 +1,1030 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2024, Fuzhou Rockchip Electronics Co., Ltd + * + * Modified by Heiko Stuebner + * This generic Synopsys DesignWare MIPI DSI2 host driver is based on the + * Rockchip version from rockchip/dw-mipi-dsi2.c converted to use bridge APIs. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include