From: "Guido Günther" <agx@sigxcpu.org>
To: Lucas Stach <l.stach@pengutronix.de>
Cc: etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
patchwork-lst@pengutronix.de, kernel@pengutronix.de,
Russell King <linux+etnaviv@armlinux.org.uk>
Subject: Re: [PATCH v2 1/8] drm/etnaviv: simplify unbind checks
Date: Fri, 2 Aug 2019 10:14:47 +0200 [thread overview]
Message-ID: <20190802081447.GA6331@bogon.m.sigxcpu.org> (raw)
In-Reply-To: <20190705171727.27501-1-l.stach@pengutronix.de>
Hi,
On Fri, Jul 05, 2019 at 07:17:20PM +0200, Lucas Stach wrote:
> Remember if the GPU has been sucessfully initialized. Only in that case
> do we need to clean up various structures in the unbind path. If the
> GPU hasn't been sucessfully initialized all the cleanups should happen
> in the failure paths of the init function.
>
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> ---
> drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 20 +++++++-------------
> drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 1 +
> 2 files changed, 8 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> index 4822549500ee..e84a0ed904aa 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> @@ -799,17 +799,16 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu)
> pm_runtime_mark_last_busy(gpu->dev);
> pm_runtime_put_autosuspend(gpu->dev);
>
> + gpu->initialized = true;
> +
> return 0;
>
> free_buffer:
> etnaviv_cmdbuf_free(&gpu->buffer);
> - gpu->buffer.suballoc = NULL;
> destroy_suballoc:
> etnaviv_cmdbuf_suballoc_destroy(gpu->cmdbuf_suballoc);
> - gpu->cmdbuf_suballoc = NULL;
> destroy_iommu:
> etnaviv_iommu_destroy(gpu->mmu);
> - gpu->mmu = NULL;
> fail:
> pm_runtime_mark_last_busy(gpu->dev);
> pm_runtime_put_autosuspend(gpu->dev);
> @@ -1521,7 +1520,7 @@ int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms)
>
> static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu)
> {
> - if (gpu->buffer.suballoc) {
> + if (gpu->initialized) {
> /* Replace the last WAIT with END */
> mutex_lock(&gpu->lock);
> etnaviv_buffer_end(gpu);
> @@ -1680,19 +1679,14 @@ static void etnaviv_gpu_unbind(struct device *dev, struct device *master,
> etnaviv_gpu_hw_suspend(gpu);
> #endif
>
> - if (gpu->buffer.suballoc)
> + if (gpu->initialized) {
> etnaviv_cmdbuf_free(&gpu->buffer);
> -
> - if (gpu->cmdbuf_suballoc) {
> etnaviv_cmdbuf_suballoc_destroy(gpu->cmdbuf_suballoc);
> - gpu->cmdbuf_suballoc = NULL;
> - }
> -
> - if (gpu->mmu) {
> etnaviv_iommu_destroy(gpu->mmu);
> - gpu->mmu = NULL;
> + gpu->initialized = false;
> }
>
> +
Maybe drop this line, otherwise:
Reviewed-by: Guido Günther <agx@sigxcpu.org>
> gpu->drm = NULL;
> idr_destroy(&gpu->fence_idr);
>
> @@ -1827,7 +1821,7 @@ static int etnaviv_gpu_rpm_resume(struct device *dev)
> return ret;
>
> /* Re-initialise the basic hardware state */
> - if (gpu->drm && gpu->buffer.suballoc) {
> + if (gpu->drm && gpu->initialized) {
> ret = etnaviv_gpu_hw_resume(gpu);
> if (ret) {
> etnaviv_gpu_clk_disable(gpu);
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
> index 9bcf151f706b..b06c7c98d522 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
> @@ -99,6 +99,7 @@ struct etnaviv_gpu {
> enum etnaviv_sec_mode sec_mode;
> struct workqueue_struct *wq;
> struct drm_gpu_scheduler sched;
> + bool initialized;
>
> /* 'ring'-buffer: */
> struct etnaviv_cmdbuf buffer;
> --
> 2.20.1
>
> _______________________________________________
> etnaviv mailing list
> etnaviv@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/etnaviv
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prev parent reply other threads:[~2019-08-02 8:14 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-05 17:17 [PATCH v2 1/8] drm/etnaviv: simplify unbind checks Lucas Stach
2019-07-05 17:17 ` [PATCH v2 2/8] drm/etnaviv: split out cmdbuf mapping into address space Lucas Stach
2019-07-24 13:51 ` Philipp Zabel
2019-08-02 13:39 ` Guido Günther
2019-08-02 14:21 ` Philipp Zabel
2019-08-02 18:23 ` Guido Günther
2019-08-02 18:40 ` Guido Günther
2019-08-08 10:26 ` Guido Günther
2019-08-09 9:17 ` Lucas Stach
2019-08-09 9:28 ` Guido Günther
2019-07-05 17:17 ` [PATCH v2 3/8] drm/etnaviv: share a single cmdbuf suballoc region across all GPUs Lucas Stach
2019-07-24 15:37 ` Philipp Zabel
2019-07-05 17:17 ` [PATCH v2 4/8] drm/etnaviv: replace MMU flush marker with flush sequence Lucas Stach
2019-07-24 15:45 ` Philipp Zabel
2019-08-13 15:27 ` Guido Günther
2019-07-05 17:17 ` [PATCH v2 5/8] drm/etnaviv: rework MMU handling Lucas Stach
2019-07-29 15:35 ` Philipp Zabel
2019-07-05 17:17 ` [PATCH v2 6/8] drm/etnaviv: split out starting of FE idle loop Lucas Stach
2019-07-29 15:36 ` Philipp Zabel
2019-07-05 17:17 ` [PATCH v2 7/8] drm/etnaviv: provide MMU context to etnaviv_gem_mapping_get Lucas Stach
2019-07-29 15:38 ` Philipp Zabel
2019-07-05 17:17 ` [PATCH v2 8/8] drm/etnaviv: implement per-process address spaces on MMUv2 Lucas Stach
2019-07-30 9:44 ` Philipp Zabel
2019-07-24 12:11 ` [PATCH v2 1/8] drm/etnaviv: simplify unbind checks Philipp Zabel
2019-08-02 8:14 ` Guido Günther [this message]
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