From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 037E515B31C; Mon, 29 Jan 2024 17:11:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706548273; cv=none; b=j5huu82yucqt0/JPi0hrEVrF8IQ9M0OGynrePEZ0bSBd1eEZIQA9bjyJcAHIBPfg8X0UyFK6dX7PrMjNgKjr97z7bZfg1joHkr5qFq9XDR7nDlxl7BrS6lBrUUxTjfzuY+uJf/gPQ0+nw9sBmiS4JP09ocb3tFnKPnMm3SNCJ5M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706548273; c=relaxed/simple; bh=DXbuAgNcOQdQ7lQ1USTmnsOtQCTXQ1gljOnmEgsc0bM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=grKqFmUkL6srGdmSbvNBBTW0HSn24pcrEg9Gng62C4LgU/iURol8tSrKYQtkpqWj09V9VQxOLOASS4Fda8VvYU4cEcpiaDN0QIYma1sqpLPMbrUxzz2ifsxTBkJ8slfxc8S3YhXuUui4xtta0249H7an1tz8VWDtEQOtklY4/xo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=HkQAhlRg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="HkQAhlRg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66037C43390; Mon, 29 Jan 2024 17:11:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1706548272; bh=DXbuAgNcOQdQ7lQ1USTmnsOtQCTXQ1gljOnmEgsc0bM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HkQAhlRgkUhr4/lx2qdy6fl9Pw4VG8WCu4RMashdzy78KB6icJ6TBKy8ALQZpnoFP lpvYaiUPKQ7pYGOhy2qP32uLz7TmHEL4Yxl6Ja8nuv7BpbjX1lQAk02M3kO7XAXU2k QW9Tr9U/kI9UWGNOZMEKAB0kys9fYKb2gkZGQHuA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicholas Kazlauskas , Wayne Lin , Samson Tam , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 6.7 289/346] drm/amd/display: do not send commands to DMUB if DMUB is inactive from S3 Date: Mon, 29 Jan 2024 09:05:20 -0800 Message-ID: <20240129170024.890106673@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240129170016.356158639@linuxfoundation.org> References: <20240129170016.356158639@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.7-stable review patch. If anyone has any objections, please let me know. ------------------ From: Samson Tam [ Upstream commit 0f657938e4345a77be871d906f3e0de3c58a7a49 ] [Why] On resume from S3, may get apply_idle_optimizations call while DMUB is inactive which will just time out. [How] Set and track power state in dmub_srv and check power state before sending commands to DMUB. Add interface in both dmub_srv and dc_dmub_srv Reviewed-by: Nicholas Kazlauskas Acked-by: Wayne Lin Signed-off-by: Samson Tam Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Stable-dep-of: 8892780834ae ("drm/amd/display: Wake DMCUB before sending a command") Signed-off-by: Sasha Levin --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++ drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 14 +++++++++++++ drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h | 2 ++ drivers/gpu/drm/amd/display/dmub/dmub_srv.h | 21 +++++++++++++++++++ .../gpu/drm/amd/display/dmub/src/dmub_srv.c | 15 +++++++++++++ 5 files changed, 55 insertions(+) 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 a9bd020b165a..4d534ac18356 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2656,6 +2656,7 @@ static int dm_suspend(void *handle) hpd_rx_irq_work_suspend(dm); dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3); + dc_dmub_srv_set_power_state(dm->dc->ctx->dmub_srv, DC_ACPI_CM_POWER_STATE_D3); return 0; } @@ -2851,6 +2852,7 @@ static int dm_resume(void *handle) if (r) DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r); + dc_dmub_srv_set_power_state(dm->dc->ctx->dmub_srv, DC_ACPI_CM_POWER_STATE_D0); dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0); dc_resume(dm->dc); @@ -2901,6 +2903,7 @@ static int dm_resume(void *handle) } /* power on hardware */ + dc_dmub_srv_set_power_state(dm->dc->ctx->dmub_srv, DC_ACPI_CM_POWER_STATE_D0); dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0); /* program HPD filter */ diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index 0e07699c1e83..0c963dfd6061 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -1251,3 +1251,17 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) ASSERT(0); } +void dc_dmub_srv_set_power_state(struct dc_dmub_srv *dc_dmub_srv, enum dc_acpi_cm_power_state powerState) +{ + struct dmub_srv *dmub; + + if (!dc_dmub_srv) + return; + + dmub = dc_dmub_srv->dmub; + + if (powerState == DC_ACPI_CM_POWER_STATE_D0) + dmub_srv_set_power_state(dmub, DMUB_POWER_STATE_D0); + else + dmub_srv_set_power_state(dmub, DMUB_POWER_STATE_D3); +} diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h index d4a60f53faab..c25ce7546f71 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h @@ -102,4 +102,6 @@ void dc_dmub_srv_subvp_save_surf_addr(const struct dc_dmub_srv *dc_dmub_srv, con bool dc_dmub_srv_is_hw_pwr_up(struct dc_dmub_srv *dc_dmub_srv, bool wait); void dc_dmub_srv_notify_idle(const struct dc *dc, bool allow_idle); void dc_dmub_srv_exit_low_power_state(const struct dc *dc); + +void dc_dmub_srv_set_power_state(struct dc_dmub_srv *dc_dmub_srv, enum dc_acpi_cm_power_state powerState); #endif /* _DMUB_DC_SRV_H_ */ diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h index df63aa8f01e9..d1a4ed6f5916 100644 --- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h @@ -150,6 +150,13 @@ enum dmub_memory_access_type { DMUB_MEMORY_ACCESS_DMA }; +/* enum dmub_power_state type - to track DC power state in dmub_srv */ +enum dmub_srv_power_state_type { + DMUB_POWER_STATE_UNDEFINED = 0, + DMUB_POWER_STATE_D0 = 1, + DMUB_POWER_STATE_D3 = 8 +}; + /** * struct dmub_region - dmub hw memory region * @base: base address for region, must be 256 byte aligned @@ -485,6 +492,8 @@ struct dmub_srv { /* Feature capabilities reported by fw */ struct dmub_feature_caps feature_caps; struct dmub_visual_confirm_color visual_confirm_color; + + enum dmub_srv_power_state_type power_state; }; /** @@ -889,6 +898,18 @@ enum dmub_status dmub_srv_clear_inbox0_ack(struct dmub_srv *dmub); */ void dmub_srv_subvp_save_surf_addr(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index); +/** + * dmub_srv_set_power_state() - Track DC power state in dmub_srv + * @dmub: The dmub service + * @power_state: DC power state setting + * + * Store DC power state in dmub_srv. If dmub_srv is in D3, then don't send messages to DMUB + * + * Return: + * void + */ +void dmub_srv_set_power_state(struct dmub_srv *dmub, enum dmub_srv_power_state_type dmub_srv_power_state); + #if defined(__cplusplus) } #endif diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index 38360adc53d9..59d4e64845ca 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -713,6 +713,7 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, dmub->hw_funcs.reset_release(dmub); dmub->hw_init = true; + dmub->power_state = DMUB_POWER_STATE_D0; return DMUB_STATUS_OK; } @@ -766,6 +767,9 @@ enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub, if (!dmub->hw_init) return DMUB_STATUS_INVALID; + if (dmub->power_state != DMUB_POWER_STATE_D0) + return DMUB_STATUS_INVALID; + if (dmub->inbox1_rb.rptr > dmub->inbox1_rb.capacity || dmub->inbox1_rb.wrpt > dmub->inbox1_rb.capacity) { return DMUB_STATUS_HW_FAILURE; @@ -784,6 +788,9 @@ enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub) if (!dmub->hw_init) return DMUB_STATUS_INVALID; + if (dmub->power_state != DMUB_POWER_STATE_D0) + return DMUB_STATUS_INVALID; + /** * Read back all the queued commands to ensure that they've * been flushed to framebuffer memory. Otherwise DMCUB might @@ -1100,3 +1107,11 @@ void dmub_srv_subvp_save_surf_addr(struct dmub_srv *dmub, const struct dc_plane_ subvp_index); } } + +void dmub_srv_set_power_state(struct dmub_srv *dmub, enum dmub_srv_power_state_type dmub_srv_power_state) +{ + if (!dmub || !dmub->hw_init) + return; + + dmub->power_state = dmub_srv_power_state; +} -- 2.43.0