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From: Jordan Crouse <jcrouse@codeaurora.org>
To: freedreno@lists.freedesktop.org
Cc: jean-philippe.brucker@arm.com, linux-arm-msm@vger.kernel.org,
	hoegsberg@google.com, dianders@chromium.org,
	Sean Paul <sean@poorly.run>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Rob Clark <robdclark@gmail.com>, David Airlie <airlied@linux.ie>,
	Daniel Vetter <daniel@ffwll.ch>
Subject: [PATCH v3 13/16] drm/msm: Add support to create target specific address spaces
Date: Wed, 29 May 2019 14:54:49 -0600	[thread overview]
Message-ID: <1559163292-4792-14-git-send-email-jcrouse@codeaurora.org> (raw)
In-Reply-To: <1559163292-4792-1-git-send-email-jcrouse@codeaurora.org>

Add support to create a GPU target specific address space for
a context. For those targets that support per-instance
pagetables they will return a new address space set up for
the instance if possible otherwise just use the global
device pagetable.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---

 drivers/gpu/drm/msm/msm_drv.c | 25 ++++++++++++++++++++++---
 drivers/gpu/drm/msm/msm_gpu.h |  1 +
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 4c51063..dd3eb30 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -609,6 +609,14 @@ static void load_gpu(struct drm_device *dev)
 	mutex_unlock(&init_lock);
 }
 
+static struct msm_gem_address_space *context_address_space(struct msm_gpu *gpu)
+{
+	if (!gpu->funcs->new_address_space)
+		return gpu->aspace;
+
+	return gpu->funcs->new_address_space(gpu);
+}
+
 static int context_init(struct drm_device *dev, struct drm_file *file)
 {
 	struct msm_drm_private *priv = dev->dev_private;
@@ -618,9 +626,16 @@ static int context_init(struct drm_device *dev, struct drm_file *file)
 	if (!ctx)
 		return -ENOMEM;
 
+	ctx->aspace = context_address_space(priv->gpu);
+	if (IS_ERR(ctx->aspace)) {
+		int ret = PTR_ERR(ctx->aspace);
+
+		kfree(ctx);
+		return ret;
+	}
+
 	msm_submitqueue_init(dev, ctx);
 
-	ctx->aspace = priv->gpu->aspace;
 	file->driver_priv = ctx;
 
 	return 0;
@@ -636,8 +651,12 @@ static int msm_open(struct drm_device *dev, struct drm_file *file)
 	return context_init(dev, file);
 }
 
-static void context_close(struct msm_file_private *ctx)
+static void context_close(struct msm_drm_private *priv,
+		struct msm_file_private *ctx)
 {
+	if (ctx->aspace != priv->gpu->aspace)
+		msm_gem_address_space_put(ctx->aspace);
+
 	msm_submitqueue_close(ctx);
 	kfree(ctx);
 }
@@ -652,7 +671,7 @@ static void msm_postclose(struct drm_device *dev, struct drm_file *file)
 		priv->lastctx = NULL;
 	mutex_unlock(&dev->struct_mutex);
 
-	context_close(ctx);
+	context_close(priv, ctx);
 }
 
 static irqreturn_t msm_irq(int irq, void *arg)
diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h
index d4bf051..588d7ba 100644
--- a/drivers/gpu/drm/msm/msm_gpu.h
+++ b/drivers/gpu/drm/msm/msm_gpu.h
@@ -77,6 +77,7 @@ struct msm_gpu_funcs {
 	void (*gpu_set_freq)(struct msm_gpu *gpu, unsigned long freq);
 	struct msm_gem_address_space *(*create_address_space)
 		(struct msm_gpu *gpu);
+	struct msm_gem_address_space *(*new_address_space)(struct msm_gpu *gpu);
 };
 
 struct msm_gpu {
-- 
2.7.4


  parent reply	other threads:[~2019-05-29 20:56 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29 20:54 [PATCH v3 00/16] drm/msm: Per-instance pagetable support Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 01/16] iommu/arm-smmu: Allow client devices to select direct mapping Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 02/16] iommu: Add DOMAIN_ATTR_SPLIT_TABLES Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 03/16] iommu/io-pgtable-arm: Add support for AARCH64 split pagetables Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 04/16] iommu/arm-smmu: Add support for DOMAIN_ATTR_SPLIT_TABLES Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 05/16] iommu: Add DOMAIN_ATTR_PTBASE Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 06/16] iommu/arm-smmu: Add auxiliary domain support for arm-smmuv2 Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 07/16] drm/msm/adreno: Enable 64 bit mode by default on a5xx and a6xx targets Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 08/16] drm/msm: Print all 64 bits of the faulting IOMMU address Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 09/16] drm/msm: Pass the MMU domain index in struct msm_file_private Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 10/16] drm/msm/gpu: Move address space setup to the GPU targets Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 11/16] drm/msm: Add support for IOMMU auxiliary domains Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 12/16] drm/msm: Add a helper function for a per-instance address space Jordan Crouse
2019-05-29 20:54 ` Jordan Crouse [this message]
2019-05-29 20:54 ` [PATCH v3 14/16] drm/msm/gpu: Add ttbr0 to the memptrs Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 15/16] drm/msm/a6xx: Support per-instance pagetables Jordan Crouse
2019-05-29 20:54 ` [PATCH v3 16/16] drm/msm/a5xx: " Jordan Crouse

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