From patchwork Fri Jul 26 13:40:16 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: 13742787 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 67CF6C3DA70 for ; Fri, 26 Jul 2024 13:40:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D1E0710E98B; 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="e2c43uYC"; 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 9EBC510E98B; 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=zLLuxR3/V2JlN8OpJMEgWoG2yzJmfvO65eS2FhFFww0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=e2c43uYCSx+UQy0ru8kSGsDvUIh1zIYSL0TfYSFHx07W2ZPuev8WkBemM1p9MXpMM WlVBkfZ9208dnBW9WEyDTKHilQxFDyp2tqGPmsyNhg0PywSdK6O/wtOMUqkBkCk0tV z9JSpYnth123fFk9b/rRrvrfpupSjJIU3dHn5rtc= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Fri, 26 Jul 2024 15:40:16 +0200 Subject: [PATCH v2 2/2] drm/radeon: convert bios_hardcoded_edid to drm_edid MIME-Version: 1.0 Message-Id: <20240726-amdgpu-edid-bios-v2-2-8a0326654253@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=6245; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=zLLuxR3/V2JlN8OpJMEgWoG2yzJmfvO65eS2FhFFww0=; b=9ND2sB1KDIhpbUs2FjCzipLLAEQJwkB/HTt8Z/JxRNUUSxvSIwYeKKU96tmaLZFnby3Mhupea syJ6iAwiPvXC2fFCmF8mOeG+mGqSa0JgASFcS9JbNS7MXKxrMvLtY9Z 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/radeon/radeon_atombios.c | 17 ++++++----------- drivers/gpu/drm/radeon/radeon_combios.c | 26 +++++--------------------- drivers/gpu/drm/radeon/radeon_connectors.c | 4 ++-- drivers/gpu/drm/radeon/radeon_display.c | 2 +- drivers/gpu/drm/radeon/radeon_mode.h | 4 ++-- 5 files changed, 16 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 168f3f94003b..81a0a91921b9 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1716,23 +1716,18 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct 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)) { - rdev->mode_info.bios_hardcoded_edid = edid; - rdev->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)) + rdev->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/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 41ddc576f8f8..df8d7f56b028 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -370,7 +370,7 @@ static uint16_t combios_get_table_offset(struct drm_device *dev, bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) { int edid_info, size; - struct edid *edid; + const struct drm_edid *edid; unsigned char *raw; edid_info = combios_get_table_offset(rdev_to_drm(rdev), COMBIOS_HARDCODED_EDID_TABLE); if (!edid_info) @@ -378,19 +378,14 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) raw = rdev->bios + edid_info; size = EDID_LENGTH * (raw[0x7e] + 1); - edid = kmalloc(size, GFP_KERNEL); - if (edid == NULL) - return false; - - memcpy((unsigned char *)edid, raw, size); + edid = drm_edid_alloc(raw, size); - if (!drm_edid_is_valid(edid)) { - kfree(edid); + if (!drm_edid_valid(edid)) { + drm_edid_free(edid); return false; } rdev->mode_info.bios_hardcoded_edid = edid; - rdev->mode_info.bios_hardcoded_edid_size = size; return true; } @@ -398,18 +393,7 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) struct edid * radeon_bios_get_hardcoded_edid(struct radeon_device *rdev) { - struct edid *edid; - - if (rdev->mode_info.bios_hardcoded_edid) { - edid = kmalloc(rdev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL); - if (edid) { - memcpy((unsigned char *)edid, - (unsigned char *)rdev->mode_info.bios_hardcoded_edid, - rdev->mode_info.bios_hardcoded_edid_size); - return edid; - } - } - return NULL; + return drm_edid_duplicate(drm_edid_raw(rdev->mode_info.bios_hardcoded_edid)); } static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rdev, diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 880edabfc9e3..528a8f3677c2 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1059,7 +1059,7 @@ radeon_vga_detect(struct drm_connector *connector, bool force) */ if ((!rdev->is_atom_bios) && (ret == connector_status_disconnected) && - rdev->mode_info.bios_hardcoded_edid_size) { + rdev->mode_info.bios_hardcoded_edid) { ret = connector_status_connected; } @@ -1392,7 +1392,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) out: if ((!rdev->is_atom_bios) && (ret == connector_status_disconnected) && - rdev->mode_info.bios_hardcoded_edid_size) { + rdev->mode_info.bios_hardcoded_edid) { radeon_connector->use_digital = true; ret = connector_status_connected; } diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 10fd58f400bc..8f5f8abcb1b4 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -1658,7 +1658,7 @@ void radeon_modeset_fini(struct radeon_device *rdev) rdev->mode_info.mode_config_initialized = false; } - kfree(rdev->mode_info.bios_hardcoded_edid); + drm_edid_free(rdev->mode_info.bios_hardcoded_edid); /* free i2c buses */ radeon_i2c_fini(rdev); diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index e0a5af180801..421c83fc70dc 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -39,6 +39,7 @@ #include struct edid; +struct drm_edid; struct radeon_bo; struct radeon_device; @@ -262,8 +263,7 @@ struct radeon_mode_info { /* Output CSC */ struct drm_property *output_csc_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 */ u16 firmware_flags;