From patchwork Fri Jan 26 16:28:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Melissa Wen X-Patchwork-Id: 13532892 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 729AEC47422 for ; Fri, 26 Jan 2024 17:02:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 979A210FC2B; Fri, 26 Jan 2024 17:02:49 +0000 (UTC) X-Greylist: delayed 1684 seconds by postgrey-1.36 at gabe; Fri, 26 Jan 2024 17:02:47 UTC Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id 94CBB10FC42; Fri, 26 Jan 2024 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(Exim) id 1rTPA2-00AOH1-DB; Fri, 26 Jan 2024 17:34:34 +0100 From: Melissa Wen To: harry.wentland@amd.com, sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com, alexander.deucher@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, jani.nikula@intel.com, alex.hung@amd.com Subject: [RFC PATCH 1/2] drm/amd/display: fix null-pointer dereference on edid reading Date: Fri, 26 Jan 2024 15:28:53 -0100 Message-ID: <20240126163429.56714-2-mwen@igalia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126163429.56714-1-mwen@igalia.com> References: <20240126163429.56714-1-mwen@igalia.com> MIME-Version: 1.0 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: , Cc: kernel-dev@igalia.com, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Use drm_edid helpers to fix a null-pointer derefence that happens when running igt@kms_force_connector_basic in a system with DCN2.1 and HDMI connector detected as below: [ +0.178146] BUG: kernel NULL pointer dereference, address: 00000000000004c0 [ +0.000010] #PF: supervisor read access in kernel mode [ +0.000005] #PF: error_code(0x0000) - not-present page [ +0.000004] PGD 0 P4D 0 [ +0.000006] Oops: 0000 [#1] PREEMPT SMP NOPTI [ +0.000006] CPU: 15 PID: 2368 Comm: kms_force_conne Not tainted 6.5.0-asdn+ #152 [ +0.000005] Hardware name: HP HP ENVY x360 Convertible 13-ay1xxx/8929, BIOS F.01 07/14/2021 [ +0.000004] RIP: 0010:i2c_transfer+0xd/0x100 [ +0.000011] Code: ea fc ff ff 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 54 55 53 <48> 8b 47 10 48 89 fb 48 83 38 00 0f 84 b3 00 00 00 83 3d 2f 80 16 [ +0.000004] RSP: 0018:ffff9c4f89c0fad0 EFLAGS: 00010246 [ +0.000005] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000080 [ +0.000003] RDX: 0000000000000002 RSI: ffff9c4f89c0fb20 RDI: 00000000000004b0 [ +0.000003] RBP: ffff9c4f89c0fb80 R08: 0000000000000080 R09: ffff8d8e0b15b980 [ +0.000003] R10: 00000000000380e0 R11: 0000000000000000 R12: 0000000000000080 [ +0.000002] R13: 0000000000000002 R14: ffff9c4f89c0fb0e R15: ffff9c4f89c0fb0f [ +0.000004] FS: 00007f9ad2176c40(0000) GS:ffff8d90fe9c0000(0000) knlGS:0000000000000000 [ +0.000003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000004] CR2: 00000000000004c0 CR3: 0000000121bc4000 CR4: 0000000000750ee0 [ +0.000003] PKRU: 55555554 [ +0.000003] Call Trace: [ +0.000006] [ +0.000006] ? __die+0x23/0x70 [ +0.000011] ? page_fault_oops+0x17d/0x4c0 [ +0.000008] ? preempt_count_add+0x6e/0xa0 [ +0.000008] ? srso_alias_return_thunk+0x5/0x7f [ +0.000011] ? exc_page_fault+0x7f/0x180 [ +0.000009] ? asm_exc_page_fault+0x26/0x30 [ +0.000013] ? i2c_transfer+0xd/0x100 [ +0.000010] drm_do_probe_ddc_edid+0xc2/0x140 [drm] [ +0.000067] ? srso_alias_return_thunk+0x5/0x7f [ +0.000006] ? _drm_do_get_edid+0x97/0x3c0 [drm] [ +0.000043] ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm] [ +0.000042] edid_block_read+0x3b/0xd0 [drm] [ +0.000043] _drm_do_get_edid+0xb6/0x3c0 [drm] [ +0.000041] ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm] [ +0.000043] drm_edid_read_custom+0x37/0xd0 [drm] [ +0.000044] amdgpu_dm_connector_mode_valid+0x129/0x1d0 [amdgpu] [ +0.000153] drm_connector_mode_valid+0x3b/0x60 [drm_kms_helper] [ +0.000000] __drm_helper_update_and_validate+0xfe/0x3c0 [drm_kms_helper] [ +0.000000] ? amdgpu_dm_connector_get_modes+0xb6/0x520 [amdgpu] [ +0.000000] ? srso_alias_return_thunk+0x5/0x7f [ +0.000000] drm_helper_probe_single_connector_modes+0x2ab/0x540 [drm_kms_helper] [ +0.000000] status_store+0xb2/0x1f0 [drm] [ +0.000000] kernfs_fop_write_iter+0x136/0x1d0 [ +0.000000] vfs_write+0x24d/0x440 [ +0.000000] ksys_write+0x6f/0xf0 [ +0.000000] do_syscall_64+0x60/0xc0 [ +0.000000] ? srso_alias_return_thunk+0x5/0x7f [ +0.000000] ? syscall_exit_to_user_mode+0x2b/0x40 [ +0.000000] ? srso_alias_return_thunk+0x5/0x7f [ +0.000000] ? do_syscall_64+0x6c/0xc0 [ +0.000000] ? do_syscall_64+0x6c/0xc0 [ +0.000000] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ +0.000000] RIP: 0033:0x7f9ad46b4b00 [ +0.000000] Code: 40 00 48 8b 15 19 b3 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d e1 3a 0e 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ +0.000000] RSP: 002b:00007ffcbd3bd6d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ +0.000000] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ad46b4b00 [ +0.000000] RDX: 0000000000000002 RSI: 00007f9ad48a7417 RDI: 0000000000000009 [ +0.000000] RBP: 0000000000000002 R08: 0000000000000064 R09: 0000000000000000 [ +0.000000] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f9ad48a7417 [ +0.000000] R13: 0000000000000009 R14: 00007ffcbd3bd760 R15: 0000000000000001 [ +0.000000] [ +0.000000] Modules linked in: ctr ccm rfcomm snd_seq_dummy snd_hrtimer snd_seq snd_seq_device cmac algif_hash algif_skcipher af_alg bnep btusb btrtl btbcm btintel btmtk bluetooth uvcvideo videobuf2_vmalloc sha3_generic videobuf2_memops uvc jitterentropy_rng videobuf2_v4l2 videodev drbg videobuf2_common ansi_cprng mc ecdh_generic ecc qrtr binfmt_misc hid_sensor_accel_3d hid_sensor_magn_3d hid_sensor_gyro_3d hid_sensor_trigger industrialio_triggered_buffer kfifo_buf industrialio snd_ctl_led joydev hid_sensor_iio_common rtw89_8852ae rtw89_8852a rtw89_pci snd_hda_codec_realtek rtw89_core snd_hda_codec_generic intel_rapl_msr ledtrig_audio intel_rapl_common snd_hda_codec_hdmi mac80211 snd_hda_intel snd_intel_dspcfg kvm_amd snd_hda_codec snd_soc_dmic snd_acp3x_rn snd_acp3x_pdm_dma libarc4 snd_hwdep snd_soc_core kvm snd_hda_core cfg80211 snd_pci_acp6x snd_pcm nls_ascii snd_timer hp_wmi snd_pci_acp5x nls_cp437 snd_rn_pci_acp3x ucsi_acpi sparse_keymap ccp snd platform_profile snd_acp_config typec_ucsi irqbypass vfat sp5100_tco [ +0.000000] snd_soc_acpi fat rapl pcspkr wmi_bmof roles rfkill rng_core snd_pci_acp3x soundcore k10temp watchdog typec battery ac amd_pmc acpi_tad button hid_sensor_hub hid_multitouch evdev serio_raw msr parport_pc ppdev lp parport fuse loop efi_pstore configfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic dm_crypt dm_mod efivarfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx libcrc32c crc32c_generic xor raid6_pq raid1 raid0 multipath linear md_mod amdgpu amdxcp i2c_algo_bit drm_ttm_helper ttm crc32_pclmul crc32c_intel drm_exec gpu_sched drm_suballoc_helper nvme ghash_clmulni_intel drm_buddy drm_display_helper sha512_ssse3 nvme_core ahci xhci_pci sha512_generic hid_generic xhci_hcd libahci rtsx_pci_sdmmc t10_pi i2c_hid_acpi drm_kms_helper i2c_hid mmc_core libata aesni_intel crc64_rocksoft_generic crypto_simd amd_sfh crc64_rocksoft scsi_mod usbcore cryptd crc_t10dif cec drm crct10dif_generic hid rtsx_pci crct10dif_pclmul scsi_common rc_core crc64 i2c_piix4 [ +0.000000] usb_common crct10dif_common video wmi [ +0.000000] CR2: 00000000000004c0 [ +0.000000] ---[ end trace 0000000000000000 ]--- Fixes: e54ed41620f ("drm/amd/display: Remove unwanted drm edid references") Signed-off-by: Melissa Wen --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 23 +++++++++++-------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index cd98b3565178..68e71e2ea472 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6561,10 +6561,10 @@ amdgpu_dm_connector_late_register(struct drm_connector *connector) static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector) { struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); - struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); struct dc_link *dc_link = aconnector->dc_link; struct dc_sink *dc_em_sink = aconnector->dc_em_sink; - struct edid *edid; + const struct drm_edid *drm_edid; + const struct edid *edid; /* * Note: drm_get_edid gets edid in the following order: @@ -6572,18 +6572,19 @@ static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector) * 2) firmware EDID if set via edid_firmware module parameter * 3) regular DDC read. */ - edid = drm_get_edid(connector, &amdgpu_connector->ddc_bus->aux.ddc); - if (!edid) { + drm_edid = drm_edid_read(connector); + + if (!drm_edid) { DRM_ERROR("No EDID found on connector: %s.\n", connector->name); return; } - + edid = drm_edid_raw(drm_edid); aconnector->edid = edid; /* Update emulated (virtual) sink's EDID */ if (dc_em_sink && dc_link) { memset(&dc_em_sink->edid_caps, 0, sizeof(struct dc_edid_caps)); - memmove(dc_em_sink->dc_edid.raw_edid, edid, (edid->extensions + 1) * EDID_LENGTH); + memmove(dc_em_sink->dc_edid.raw_edid, (uint8_t *)edid, (edid->extensions + 1) * EDID_LENGTH); dm_helpers_parse_edid_caps( dc_link, &dc_em_sink->dc_edid, @@ -6613,12 +6614,12 @@ static int get_modes(struct drm_connector *connector) static void create_eml_sink(struct amdgpu_dm_connector *aconnector) { struct drm_connector *connector = &aconnector->base; - struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(&aconnector->base); struct dc_sink_init_data init_params = { .link = aconnector->dc_link, .sink_signal = SIGNAL_TYPE_VIRTUAL }; - struct edid *edid; + const struct drm_edid *drm_edid; + const struct edid *edid; /* * Note: drm_get_edid gets edid in the following order: @@ -6626,12 +6627,14 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector) * 2) firmware EDID if set via edid_firmware module parameter * 3) regular DDC read. */ - edid = drm_get_edid(connector, &amdgpu_connector->ddc_bus->aux.ddc); - if (!edid) { + drm_edid = drm_edid_read(connector); + if (!drm_edid) { DRM_ERROR("No EDID found on connector: %s.\n", connector->name); return; } + edid = drm_edid_raw(drm_edid); + if (drm_detect_hdmi_monitor(edid)) init_params.sink_signal = SIGNAL_TYPE_HDMI_TYPE_A; From patchwork Fri Jan 26 16:28:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Melissa Wen X-Patchwork-Id: 13532894 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 1669CC47422 for ; Fri, 26 Jan 2024 17:03:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A93C310FC51; Fri, 26 Jan 2024 17:02:55 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with 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TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1rTPA4-00AOH1-2S; Fri, 26 Jan 2024 17:34:36 +0100 From: Melissa Wen To: harry.wentland@amd.com, sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com, alexander.deucher@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch Subject: [RFC PATCH 2/2] drm/amd/display: switch amdgpu_dm_connector to use struct drm_edid Date: Fri, 26 Jan 2024 15:28:54 -0100 Message-ID: <20240126163429.56714-3-mwen@igalia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126163429.56714-1-mwen@igalia.com> References: <20240126163429.56714-1-mwen@igalia.com> MIME-Version: 1.0 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: , Cc: Alex Hung , kernel-dev@igalia.com, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Replace raw edid handling (struct edid) with the opaque EDID type (struct drm_edid) on amdgpu_dm_connector for consistency. It may also prevent mismatch of approaches in different parts of the driver code. Working in progress. There are a couple of cast warnings and it was only tested with IGT. Signed-off-by: Melissa Wen --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 63 ++++++++++--------- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 4 +- .../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 9 +-- .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 23 +++---- 4 files changed, 51 insertions(+), 48 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 68e71e2ea472..741081d73bb3 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3277,12 +3277,12 @@ void amdgpu_dm_update_connector_after_detect( &aconnector->dm_dp_aux.aux); } } else { - aconnector->edid = - (struct edid *)sink->dc_edid.raw_edid; + const struct edid *edid = (const struct edid *)sink->dc_edid.raw_edid; + aconnector->edid = drm_edid_alloc(edid, (edid->extensions + 1) * EDID_LENGTH); if (aconnector->dc_link->aux_mode) drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux, - aconnector->edid); + drm_edid_raw(aconnector->edid)); } if (!aconnector->timing_requested) { @@ -3293,13 +3293,13 @@ void amdgpu_dm_update_connector_after_detect( "failed to create aconnector->requested_timing\n"); } - drm_connector_update_edid_property(connector, aconnector->edid); + drm_edid_connector_update(connector, aconnector->edid); amdgpu_dm_update_freesync_caps(connector, aconnector->edid); update_connector_ext_caps(aconnector); } else { drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux); amdgpu_dm_update_freesync_caps(connector, NULL); - drm_connector_update_edid_property(connector, NULL); + drm_edid_connector_update(connector, NULL); aconnector->num_modes = 0; dc_sink_release(aconnector->dc_sink); aconnector->dc_sink = NULL; @@ -6564,7 +6564,6 @@ static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector) struct dc_link *dc_link = aconnector->dc_link; struct dc_sink *dc_em_sink = aconnector->dc_em_sink; const struct drm_edid *drm_edid; - const struct edid *edid; /* * Note: drm_get_edid gets edid in the following order: @@ -6578,11 +6577,12 @@ static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector) DRM_ERROR("No EDID found on connector: %s.\n", connector->name); return; } - edid = drm_edid_raw(drm_edid); - aconnector->edid = edid; - + aconnector->edid = drm_edid; + drm_edid_connector_update(connector, drm_edid); /* Update emulated (virtual) sink's EDID */ if (dc_em_sink && dc_link) { + const struct edid *edid = drm_edid_raw(drm_edid); + memset(&dc_em_sink->edid_caps, 0, sizeof(struct dc_edid_caps)); memmove(dc_em_sink->dc_edid.raw_edid, (uint8_t *)edid, (edid->extensions + 1) * EDID_LENGTH); dm_helpers_parse_edid_caps( @@ -6633,13 +6633,13 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector) return; } - edid = drm_edid_raw(drm_edid); - - if (drm_detect_hdmi_monitor(edid)) + if (connector->display_info.is_hdmi) init_params.sink_signal = SIGNAL_TYPE_HDMI_TYPE_A; - aconnector->edid = edid; + aconnector->edid = drm_edid; + drm_edid_connector_update(connector, drm_edid); + edid = drm_edid_raw(drm_edid); aconnector->dc_em_sink = dc_link_add_remote_sink( aconnector->dc_link, (uint8_t *)edid, @@ -7322,16 +7322,16 @@ static void amdgpu_set_panel_orientation(struct drm_connector *connector) } static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector, - struct edid *edid) + const struct drm_edid *drm_edid) { struct amdgpu_dm_connector *amdgpu_dm_connector = to_amdgpu_dm_connector(connector); - if (edid) { + if (drm_edid) { /* empty probed_modes */ INIT_LIST_HEAD(&connector->probed_modes); amdgpu_dm_connector->num_modes = - drm_add_edid_modes(connector, edid); + drm_edid_connector_add_modes(connector); /* sorting the probed modes before calling function * amdgpu_dm_get_native_mode() since EDID can have @@ -7345,10 +7345,10 @@ static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector, amdgpu_dm_get_native_mode(connector); /* Freesync capabilities are reset by calling - * drm_add_edid_modes() and need to be + * drm_edid_connector_add_modes() and need to be * restored here. */ - amdgpu_dm_update_freesync_caps(connector, edid); + amdgpu_dm_update_freesync_caps(connector, drm_edid); } else { amdgpu_dm_connector->num_modes = 0; } @@ -7444,12 +7444,12 @@ static uint add_fs_modes(struct amdgpu_dm_connector *aconnector) } static void amdgpu_dm_connector_add_freesync_modes(struct drm_connector *connector, - struct edid *edid) + const struct drm_edid *drm_edid) { struct amdgpu_dm_connector *amdgpu_dm_connector = to_amdgpu_dm_connector(connector); - if (!edid) + if (!drm_edid) return; if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10) @@ -7462,23 +7462,23 @@ static int amdgpu_dm_connector_get_modes(struct drm_connector *connector) struct amdgpu_dm_connector *amdgpu_dm_connector = to_amdgpu_dm_connector(connector); struct drm_encoder *encoder; - struct edid *edid = amdgpu_dm_connector->edid; + const struct drm_edid *drm_edid = amdgpu_dm_connector->edid; struct dc_link_settings *verified_link_cap = &amdgpu_dm_connector->dc_link->verified_link_cap; const struct dc *dc = amdgpu_dm_connector->dc_link->dc; encoder = amdgpu_dm_connector_to_encoder(connector); - if (!drm_edid_is_valid(edid)) { + if (!drm_edid_valid(drm_edid)) { amdgpu_dm_connector->num_modes = drm_add_modes_noedid(connector, 640, 480); if (dc->link_srv->dp_get_encoding_format(verified_link_cap) == DP_128b_132b_ENCODING) amdgpu_dm_connector->num_modes += drm_add_modes_noedid(connector, 1920, 1080); } else { - amdgpu_dm_connector_ddc_get_modes(connector, edid); + amdgpu_dm_connector_ddc_get_modes(connector, drm_edid); amdgpu_dm_connector_add_common_modes(encoder, connector); - amdgpu_dm_connector_add_freesync_modes(connector, edid); + amdgpu_dm_connector_add_freesync_modes(connector, drm_edid); } amdgpu_dm_fbc_init(connector); @@ -11038,7 +11038,7 @@ static bool parse_edid_cea(struct amdgpu_dm_connector *aconnector, } static int parse_amd_vsdb(struct amdgpu_dm_connector *aconnector, - struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info) + const struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info) { u8 *edid_ext = NULL; int i; @@ -11073,7 +11073,8 @@ static int parse_amd_vsdb(struct amdgpu_dm_connector *aconnector, } static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector, - struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info) + const struct edid *edid, + struct amdgpu_hdmi_vsdb_info *vsdb_info) { u8 *edid_ext = NULL; int i; @@ -11115,7 +11116,7 @@ static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector, * FreeSync parameters. */ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, - struct edid *edid) + const struct drm_edid *drm_edid) { int i = 0; struct detailed_timing *timing; @@ -11125,9 +11126,9 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, to_amdgpu_dm_connector(connector); struct dm_connector_state *dm_con_state = NULL; struct dc_sink *sink; - struct amdgpu_device *adev = drm_to_adev(connector->dev); struct amdgpu_hdmi_vsdb_info vsdb_info = {0}; + const struct edid *edid = drm_edid_raw(drm_edid); bool freesync_capable = false; enum adaptive_sync_type as_type = ADAPTIVE_SYNC_TYPE_NONE; @@ -11140,7 +11141,7 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, amdgpu_dm_connector->dc_sink : amdgpu_dm_connector->dc_em_sink; - if (!edid || !sink) { + if (!drm_edid || !sink) { dm_con_state = to_dm_connector_state(connector->state); amdgpu_dm_connector->min_vfreq = 0; @@ -11162,7 +11163,7 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, || sink->sink_signal == SIGNAL_TYPE_EDP) { bool edid_check_required = false; - if (edid) { + if (drm_edid) { edid_check_required = is_dp_capable_without_timing_msa( adev->dm.dc, amdgpu_dm_connector); @@ -11214,7 +11215,7 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, amdgpu_dm_connector->as_type = ADAPTIVE_SYNC_TYPE_EDP; } - } else if (edid && sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) { + } else if (drm_edid && sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) { i = parse_hdmi_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info); if (i >= 0 && vsdb_info.freesync_supported) { timing = &edid->detailed_timings[i]; diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h index 9c1871b866cc..b81cf6f3713b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -637,7 +637,7 @@ struct amdgpu_dm_connector { /* we need to mind the EDID between detect and get modes due to analog/digital/tvencoder */ - struct edid *edid; + const struct drm_edid *edid; /* shared with amdgpu */ struct amdgpu_hpd hpd; @@ -908,7 +908,7 @@ void dm_restore_drm_connector_state(struct drm_device *dev, struct drm_connector *connector); void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, - struct edid *edid); + const struct drm_edid *drm_edid); void amdgpu_dm_trigger_timing_sync(struct drm_device *dev); diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index e3915c4f8566..91006326ce6d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -898,7 +898,8 @@ enum dc_edid_status dm_helpers_read_local_edid( struct i2c_adapter *ddc; int retry = 3; enum dc_edid_status edid_status; - struct edid *edid; + const struct drm_edid *drm_edid; + const struct edid *edid; if (link->aux_mode) ddc = &aconnector->dm_dp_aux.aux.ddc; @@ -909,8 +910,8 @@ enum dc_edid_status dm_helpers_read_local_edid( * do check sum and retry to make sure read correct edid. */ do { - - edid = drm_get_edid(&aconnector->base, ddc); + drm_edid = drm_edid_read_ddc(connector, ddc); + edid = drm_edid_raw(drm_edid); /* DP Compliance Test 4.2.2.6 */ if (link->aux_mode && connector->edid_corrupt) @@ -928,7 +929,7 @@ enum dc_edid_status dm_helpers_read_local_edid( memmove(sink->dc_edid.raw_edid, (uint8_t *)edid, sink->dc_edid.length); /* We don't need the original edid anymore */ - kfree(edid); + drm_edid_free(drm_edid); edid_status = dm_helpers_parse_edid_caps( link, diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 7075a85dd16e..cdebd0e74b26 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -127,7 +127,7 @@ dm_dp_mst_connector_destroy(struct drm_connector *connector) dc_sink_release(aconnector->dc_sink); } - kfree(aconnector->edid); + drm_edid_free(aconnector->edid); drm_connector_cleanup(connector); drm_dp_mst_put_port_malloc(aconnector->mst_output_port); @@ -297,15 +297,15 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector) return drm_add_edid_modes(connector, NULL); if (!aconnector->edid) { - struct edid *edid; + const struct drm_edid *drm_edid; - edid = drm_dp_mst_get_edid(connector, &aconnector->mst_root->mst_mgr, aconnector->mst_output_port); + drm_edid = drm_dp_mst_edid_read(connector, &aconnector->mst_root->mst_mgr, aconnector->mst_output_port); - if (!edid) { + if (!drm_edid) { amdgpu_dm_set_mst_status(&aconnector->mst_status, MST_REMOTE_EDID, false); - drm_connector_update_edid_property( + drm_edid_connector_update( &aconnector->base, NULL); @@ -339,7 +339,7 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector) return ret; } - aconnector->edid = edid; + aconnector->edid = drm_edid; amdgpu_dm_set_mst_status(&aconnector->mst_status, MST_REMOTE_EDID, true); } @@ -354,10 +354,12 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector) struct dc_sink_init_data init_params = { .link = aconnector->dc_link, .sink_signal = SIGNAL_TYPE_DISPLAY_PORT_MST }; + const struct edid *edid = drm_edid_raw(aconnector->edid); + dc_sink = dc_link_add_remote_sink( aconnector->dc_link, - (uint8_t *)aconnector->edid, - (aconnector->edid->extensions + 1) * EDID_LENGTH, + (uint8_t *)edid, + (edid->extensions + 1) * EDID_LENGTH, &init_params); if (!dc_sink) { @@ -411,10 +413,9 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector) } } - drm_connector_update_edid_property( - &aconnector->base, aconnector->edid); + drm_edid_connector_update(&aconnector->base, aconnector->edid); - ret = drm_add_edid_modes(connector, aconnector->edid); + ret = drm_edid_connector_add_modes(connector); return ret; }