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 1CDCD167267; Mon, 27 May 2024 15:57:31 +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=1716825452; cv=none; b=RxSHez93Hg6UF73OY1zxC+a30x1W1u39S3hH0DR3bRv85WSe/nUilESmBqkZ8+b1Ff3uxkFjCLSgystNrI6pAImYduDgcRLJ8Tl0ozrURdJOCCaOmMO8LLDKHEAYU0OQBauLt1d0Hh3+gm95Qo308Mpd/YJDCVR2V4HrXS24ZyY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716825452; c=relaxed/simple; bh=DqWMOx7aY2mWOJYhIi5ImacClV/1HB5ITtsBVRGw4cQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=atLU+j6PZdLy0yO5nT7ldBiyCdBB49Fw4Uce9UoKsXoH3VJpmSUsGlM8CggAjuLqlrpssVvdjkGPph/y6eQJ7Gqjvl1eHyFcy+J5MQ+MIL8AweqM02lSnQqODpUc5U/inPcHkF3k7Kr1XPQ1VsqgFHCCBrJyCLWnbcK57GXfsc0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ciwFrCH4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ciwFrCH4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4D4ACC32789; Mon, 27 May 2024 15:57:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716825451; bh=DqWMOx7aY2mWOJYhIi5ImacClV/1HB5ITtsBVRGw4cQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ciwFrCH4Vv8HPV/LAzWr4fBVIXjKB5MLGcBCu1uQLkbHQVjTQRFQDbhewVzF1PxRa UZ1NJrUGbrN4Pk2uaJJGv1KZtOVDWuqsDoN5YqtAw0n/pLXBgKPRNSRWkcaDF77wdw E33Zv+TuHm/WJwY+GDLwQXHVaz2BJE/02hPRqA97evDAPgsKkFpIltO2FNVojgCtDC SOZ0AnqNBT83ql7EhqRli5DEK0oYoHVoFQwFxeIzTN3fQFCiGOuxJhteIa+ESdmLDa Zi2BIF2Ouqhs4qOsNRtYjfw2ImsWmuJ2fePYkjVhooyUDST6I/vQwWAj/B/Lwi3sv1 Bwlj0TPDQLHjg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Erico Nunes , Qiang Yu , Sasha Levin , maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, lima@lists.freedesktop.org Subject: [PATCH AUTOSEL 6.1 04/11] drm/lima: add mask irq callback to gp and pp Date: Mon, 27 May 2024 11:56:41 -0400 Message-ID: <20240527155710.3865826-4-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240527155710.3865826-1-sashal@kernel.org> References: <20240527155710.3865826-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.1.92 Content-Transfer-Encoding: 8bit From: Erico Nunes [ Upstream commit 49c13b4d2dd4a831225746e758893673f6ae961c ] This is needed because we want to reset those devices in device-agnostic code such as lima_sched. In particular, masking irqs will be useful before a hard reset to prevent race conditions. Signed-off-by: Erico Nunes Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20240405152951.1531555-2-nunes.erico@gmail.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/lima/lima_bcast.c | 12 ++++++++++++ drivers/gpu/drm/lima/lima_bcast.h | 3 +++ drivers/gpu/drm/lima/lima_gp.c | 8 ++++++++ drivers/gpu/drm/lima/lima_pp.c | 18 ++++++++++++++++++ drivers/gpu/drm/lima/lima_sched.h | 1 + 5 files changed, 42 insertions(+) diff --git a/drivers/gpu/drm/lima/lima_bcast.c b/drivers/gpu/drm/lima/lima_bcast.c index fbc43f243c54d..6d000504e1a4e 100644 --- a/drivers/gpu/drm/lima/lima_bcast.c +++ b/drivers/gpu/drm/lima/lima_bcast.c @@ -43,6 +43,18 @@ void lima_bcast_suspend(struct lima_ip *ip) } +int lima_bcast_mask_irq(struct lima_ip *ip) +{ + bcast_write(LIMA_BCAST_BROADCAST_MASK, 0); + bcast_write(LIMA_BCAST_INTERRUPT_MASK, 0); + return 0; +} + +int lima_bcast_reset(struct lima_ip *ip) +{ + return lima_bcast_hw_init(ip); +} + int lima_bcast_init(struct lima_ip *ip) { int i; diff --git a/drivers/gpu/drm/lima/lima_bcast.h b/drivers/gpu/drm/lima/lima_bcast.h index 465ee587bceb2..cd08841e47879 100644 --- a/drivers/gpu/drm/lima/lima_bcast.h +++ b/drivers/gpu/drm/lima/lima_bcast.h @@ -13,4 +13,7 @@ void lima_bcast_fini(struct lima_ip *ip); void lima_bcast_enable(struct lima_device *dev, int num_pp); +int lima_bcast_mask_irq(struct lima_ip *ip); +int lima_bcast_reset(struct lima_ip *ip); + #endif diff --git a/drivers/gpu/drm/lima/lima_gp.c b/drivers/gpu/drm/lima/lima_gp.c index 8dd501b7a3d0d..6cf46b653e810 100644 --- a/drivers/gpu/drm/lima/lima_gp.c +++ b/drivers/gpu/drm/lima/lima_gp.c @@ -212,6 +212,13 @@ static void lima_gp_task_mmu_error(struct lima_sched_pipe *pipe) lima_sched_pipe_task_done(pipe); } +static void lima_gp_task_mask_irq(struct lima_sched_pipe *pipe) +{ + struct lima_ip *ip = pipe->processor[0]; + + gp_write(LIMA_GP_INT_MASK, 0); +} + static int lima_gp_task_recover(struct lima_sched_pipe *pipe) { struct lima_ip *ip = pipe->processor[0]; @@ -344,6 +351,7 @@ int lima_gp_pipe_init(struct lima_device *dev) pipe->task_error = lima_gp_task_error; pipe->task_mmu_error = lima_gp_task_mmu_error; pipe->task_recover = lima_gp_task_recover; + pipe->task_mask_irq = lima_gp_task_mask_irq; return 0; } diff --git a/drivers/gpu/drm/lima/lima_pp.c b/drivers/gpu/drm/lima/lima_pp.c index a5c95bed08c09..54b208a4a768e 100644 --- a/drivers/gpu/drm/lima/lima_pp.c +++ b/drivers/gpu/drm/lima/lima_pp.c @@ -408,6 +408,9 @@ static void lima_pp_task_error(struct lima_sched_pipe *pipe) lima_pp_hard_reset(ip); } + + if (pipe->bcast_processor) + lima_bcast_reset(pipe->bcast_processor); } static void lima_pp_task_mmu_error(struct lima_sched_pipe *pipe) @@ -416,6 +419,20 @@ static void lima_pp_task_mmu_error(struct lima_sched_pipe *pipe) lima_sched_pipe_task_done(pipe); } +static void lima_pp_task_mask_irq(struct lima_sched_pipe *pipe) +{ + int i; + + for (i = 0; i < pipe->num_processor; i++) { + struct lima_ip *ip = pipe->processor[i]; + + pp_write(LIMA_PP_INT_MASK, 0); + } + + if (pipe->bcast_processor) + lima_bcast_mask_irq(pipe->bcast_processor); +} + static struct kmem_cache *lima_pp_task_slab; static int lima_pp_task_slab_refcnt; @@ -447,6 +464,7 @@ int lima_pp_pipe_init(struct lima_device *dev) pipe->task_fini = lima_pp_task_fini; pipe->task_error = lima_pp_task_error; pipe->task_mmu_error = lima_pp_task_mmu_error; + pipe->task_mask_irq = lima_pp_task_mask_irq; return 0; } diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h index 6a11764d87b38..edf205be43699 100644 --- a/drivers/gpu/drm/lima/lima_sched.h +++ b/drivers/gpu/drm/lima/lima_sched.h @@ -80,6 +80,7 @@ struct lima_sched_pipe { void (*task_error)(struct lima_sched_pipe *pipe); void (*task_mmu_error)(struct lima_sched_pipe *pipe); int (*task_recover)(struct lima_sched_pipe *pipe); + void (*task_mask_irq)(struct lima_sched_pipe *pipe); struct work_struct recover_work; }; -- 2.43.0