From patchwork Fri Jul 26 13:40:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 13742788 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 152CAC3DA49 for ; Fri, 26 Jul 2024 13:40:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D71EE10E990; Fri, 26 Jul 2024 13:40:56 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=weissschuh.net header.i=@weissschuh.net header.b="H3am/10L"; dkim-atps=neutral Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9F9D810E990; Fri, 26 Jul 2024 13:40:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1722001252; bh=yCh3j7AzpbYaYw1lIg+cXANVOhzeBASAYzoBFFZRBMY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=H3am/10LeRliHMcGqvZ9VX5j2w4kiu/rMdnEhq6Iwv4xjA1XNFJcIPu+U57IZrmeL BmpI+4b4JjTxhorEmFdzyJ9c59bOtshrUJEb0iL7SgfkX85kZ9/auNV7BTixPpZixF kV6BJwypz8Pbn6ZtnbFeORV6Ta7d4yEBNLHkgacs= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Fri, 26 Jul 2024 15:40:15 +0200 Subject: [PATCH v2 1/2] drm/amdgpu: convert bios_hardcoded_edid to drm_edid MIME-Version: 1.0 Message-Id: <20240726-amdgpu-edid-bios-v2-1-8a0326654253@weissschuh.net> References: <20240726-amdgpu-edid-bios-v2-0-8a0326654253@weissschuh.net> In-Reply-To: <20240726-amdgpu-edid-bios-v2-0-8a0326654253@weissschuh.net> To: Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , David Airlie , Daniel Vetter , Xinhui Pan Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1722001252; l=6641; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=yCh3j7AzpbYaYw1lIg+cXANVOhzeBASAYzoBFFZRBMY=; b=RF6nfFT/E1KPCS4w1LS0C+2C2kK/ejep/KoSDc6u7EQvZVzcNiJQIbjgWJZDGtXDLVg6QEt5r Q++PuQX+/RrABVkhu0AUYYeYJS5av2igYxt7+NN39gLTZKqO4Sq2FNe X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Instead of manually passing around 'struct edid *' and its size, use 'struct drm_edid', which encapsulates a validated combination of both. As the drm_edid_ can handle NULL gracefully, the explicit checks can be dropped. Also save a few characters by transforming '&array[0]' to the equivalent 'array' and using 'max_t(int, ...)' instead of manual casts. Signed-off-by: Thomas Weißschuh --- drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 6 +----- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 4 ++-- drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c | 2 +- drivers/gpu/drm/amd/amdgpu/atombios_encoders.c | 17 ++++++----------- drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 2 +- 8 files changed, 14 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c index bd0fbdc5f55d..344e0a9ee08a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c @@ -249,11 +249,7 @@ amdgpu_connector_find_encoder(struct drm_connector *connector, static struct edid * amdgpu_connector_get_hardcoded_edid(struct amdgpu_device *adev) { - if (adev->mode_info.bios_hardcoded_edid) { - return kmemdup((unsigned char *)adev->mode_info.bios_hardcoded_edid, - adev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL); - } - return NULL; + return drm_edid_duplicate(drm_edid_raw(adev->mode_info.bios_hardcoded_edid)); } static void amdgpu_connector_get_edid(struct drm_connector *connector) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h index d002b845d8ac..5e3faefc5510 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h @@ -51,6 +51,7 @@ struct amdgpu_encoder; struct amdgpu_router; struct amdgpu_hpd; struct edid; +struct drm_edid; #define to_amdgpu_crtc(x) container_of(x, struct amdgpu_crtc, base) #define to_amdgpu_connector(x) container_of(x, struct amdgpu_connector, base) @@ -326,8 +327,7 @@ struct amdgpu_mode_info { /* FMT dithering */ struct drm_property *dither_property; /* hardcoded DFP edid from BIOS */ - struct edid *bios_hardcoded_edid; - int bios_hardcoded_edid_size; + const struct drm_edid *bios_hardcoded_edid; /* firmware flags */ u32 firmware_flags; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c index 6415d0d039e1..e5f508d34ed8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c @@ -549,7 +549,7 @@ static int amdgpu_vkms_sw_fini(void *handle) adev->mode_info.mode_config_initialized = false; - kfree(adev->mode_info.bios_hardcoded_edid); + drm_edid_free(adev->mode_info.bios_hardcoded_edid); kfree(adev->amdgpu_vkms_output); return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c index ebf83fee43bb..8defca3705d5 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c @@ -2064,23 +2064,18 @@ amdgpu_atombios_encoder_get_lcd_info(struct amdgpu_encoder *encoder) case LCD_FAKE_EDID_PATCH_RECORD_TYPE: fake_edid_record = (ATOM_FAKE_EDID_PATCH_RECORD *)record; if (fake_edid_record->ucFakeEDIDLength) { - struct edid *edid; + const struct drm_edid *edid; int edid_size; if (fake_edid_record->ucFakeEDIDLength == 128) edid_size = fake_edid_record->ucFakeEDIDLength; else edid_size = fake_edid_record->ucFakeEDIDLength * 128; - edid = kmemdup(&fake_edid_record->ucFakeEDIDString[0], - edid_size, GFP_KERNEL); - if (edid) { - if (drm_edid_is_valid(edid)) { - adev->mode_info.bios_hardcoded_edid = edid; - adev->mode_info.bios_hardcoded_edid_size = edid_size; - } else { - kfree(edid); - } - } + edid = drm_edid_alloc(fake_edid_record->ucFakeEDIDString, edid_size); + if (drm_edid_valid(edid)) + adev->mode_info.bios_hardcoded_edid = edid; + else + drm_edid_free(edid); record += struct_size(fake_edid_record, ucFakeEDIDString, edid_size); diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c index dddb5fe16f2c..742adbc460c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c @@ -2846,7 +2846,7 @@ static int dce_v10_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - kfree(adev->mode_info.bios_hardcoded_edid); + drm_edid_free(adev->mode_info.bios_hardcoded_edid); drm_kms_helper_poll_fini(adev_to_drm(adev)); diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index 11780e4d7e9f..8d46ebadfa46 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c @@ -2973,7 +2973,7 @@ static int dce_v11_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - kfree(adev->mode_info.bios_hardcoded_edid); + drm_edid_free(adev->mode_info.bios_hardcoded_edid); drm_kms_helper_poll_fini(adev_to_drm(adev)); diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c index 05c0df97f01d..f08dc6a3886f 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c @@ -2745,7 +2745,7 @@ static int dce_v6_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - kfree(adev->mode_info.bios_hardcoded_edid); + drm_edid_free(adev->mode_info.bios_hardcoded_edid); drm_kms_helper_poll_fini(adev_to_drm(adev)); diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c index dc73e301d937..a6a3adf2ae13 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c @@ -2766,7 +2766,7 @@ static int dce_v8_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - kfree(adev->mode_info.bios_hardcoded_edid); + drm_edid_free(adev->mode_info.bios_hardcoded_edid); drm_kms_helper_poll_fini(adev_to_drm(adev));