From: Jordan Crouse <jcrouse@codeaurora.org>
To: linux-arm-msm@vger.kernel.org
Cc: Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>,
freedreno@lists.freedesktop.org,
Robin Murphy <robin.murphy@arm.com>,
dri-devel@lists.freedesktop.org,
iommu@lists.linux-foundation.org, Daniel Vetter <daniel@ffwll.ch>,
Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH v10 11/13] drm/msm: Add support for private address space instances
Date: Mon, 20 Jul 2020 09:40:45 -0600 [thread overview]
Message-ID: <20200720154047.3611092-12-jcrouse@codeaurora.org> (raw)
In-Reply-To: <20200720154047.3611092-1-jcrouse@codeaurora.org>
Add support for allocating private address space instances. Targets that
support per-context pagetables should implement their own function to
allocate private address spaces.
The default will return a pointer to the global address space.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---
drivers/gpu/drm/msm/msm_drv.c | 13 +++++++------
drivers/gpu/drm/msm/msm_drv.h | 5 +++++
drivers/gpu/drm/msm/msm_gem_vma.c | 9 +++++++++
drivers/gpu/drm/msm/msm_gpu.c | 17 +++++++++++++++++
drivers/gpu/drm/msm/msm_gpu.h | 5 +++++
5 files changed, 43 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 556198d4ba5f..c0328abea52d 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -603,7 +603,7 @@ static int context_init(struct drm_device *dev, struct drm_file *file)
kref_init(&ctx->ref);
msm_submitqueue_init(dev, ctx);
- ctx->aspace = priv->gpu ? priv->gpu->aspace : NULL;
+ ctx->aspace = msm_gpu_create_private_address_space(priv->gpu);
file->driver_priv = ctx;
return 0;
@@ -786,18 +786,19 @@ static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
}
static int msm_ioctl_gem_info_iova(struct drm_device *dev,
- struct drm_gem_object *obj, uint64_t *iova)
+ struct drm_file *file, struct drm_gem_object *obj,
+ uint64_t *iova)
{
- struct msm_drm_private *priv = dev->dev_private;
+ struct msm_file_private *ctx = file->driver_priv;
- if (!priv->gpu)
+ if (!ctx->aspace)
return -EINVAL;
/*
* Don't pin the memory here - just get an address so that userspace can
* be productive
*/
- return msm_gem_get_iova(obj, priv->gpu->aspace, iova);
+ return msm_gem_get_iova(obj, ctx->aspace, iova);
}
static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
@@ -836,7 +837,7 @@ static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
args->value = msm_gem_mmap_offset(obj);
break;
case MSM_INFO_GET_IOVA:
- ret = msm_ioctl_gem_info_iova(dev, obj, &args->value);
+ ret = msm_ioctl_gem_info_iova(dev, file, obj, &args->value);
break;
case MSM_INFO_SET_NAME:
/* length check should leave room for terminating null: */
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index ab5f77261816..df400f9ec38c 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -250,6 +250,10 @@ int msm_gem_map_vma(struct msm_gem_address_space *aspace,
void msm_gem_close_vma(struct msm_gem_address_space *aspace,
struct msm_gem_vma *vma);
+
+struct msm_gem_address_space *
+msm_gem_address_space_get(struct msm_gem_address_space *aspace);
+
void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
struct msm_gem_address_space *
@@ -435,6 +439,7 @@ static inline void msm_file_private_destroy(struct kref *kref)
struct msm_file_private *ctx = container_of(kref,
struct msm_file_private, ref);
+ msm_gem_address_space_put(ctx->aspace);
kfree(ctx);
}
diff --git a/drivers/gpu/drm/msm/msm_gem_vma.c b/drivers/gpu/drm/msm/msm_gem_vma.c
index 5f6a11211b64..29cc1305cf37 100644
--- a/drivers/gpu/drm/msm/msm_gem_vma.c
+++ b/drivers/gpu/drm/msm/msm_gem_vma.c
@@ -27,6 +27,15 @@ void msm_gem_address_space_put(struct msm_gem_address_space *aspace)
kref_put(&aspace->kref, msm_gem_address_space_destroy);
}
+struct msm_gem_address_space *
+msm_gem_address_space_get(struct msm_gem_address_space *aspace)
+{
+ if (!IS_ERR_OR_NULL(aspace))
+ kref_get(&aspace->kref);
+
+ return aspace;
+}
+
/* Actually unmap memory for the vma */
void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
struct msm_gem_vma *vma)
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index a1f3da6550e5..aabbd7908ee5 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -823,6 +823,23 @@ static int get_clocks(struct platform_device *pdev, struct msm_gpu *gpu)
return 0;
}
+/* Return a new address space for a msm_drm_private instance */
+struct msm_gem_address_space *
+msm_gpu_create_private_address_space(struct msm_gpu *gpu)
+{
+ if (!gpu)
+ return NULL;
+
+ /*
+ * If the target doesn't support private address spaces then return
+ * the global one
+ */
+ if (!gpu->funcs->create_private_address_space)
+ return msm_gem_address_space_get(gpu->aspace);
+
+ return gpu->funcs->create_private_address_space(gpu);
+}
+
int msm_gpu_init(struct drm_device *drm, struct platform_device *pdev,
struct msm_gpu *gpu, const struct msm_gpu_funcs *funcs,
const char *name, struct msm_gpu_config *config)
diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h
index d496d488222c..d298657b4730 100644
--- a/drivers/gpu/drm/msm/msm_gpu.h
+++ b/drivers/gpu/drm/msm/msm_gpu.h
@@ -64,6 +64,8 @@ struct msm_gpu_funcs {
void (*gpu_set_freq)(struct msm_gpu *gpu, struct dev_pm_opp *opp);
struct msm_gem_address_space *(*create_address_space)
(struct msm_gpu *gpu, struct platform_device *pdev);
+ struct msm_gem_address_space *(*create_private_address_space)
+ (struct msm_gpu *gpu);
};
struct msm_gpu {
@@ -286,6 +288,9 @@ int msm_gpu_init(struct drm_device *drm, struct platform_device *pdev,
struct msm_gpu *gpu, const struct msm_gpu_funcs *funcs,
const char *name, struct msm_gpu_config *config);
+struct msm_gem_address_space *
+msm_gpu_create_private_address_space(struct msm_gpu *gpu);
+
void msm_gpu_cleanup(struct msm_gpu *gpu);
struct msm_gpu *adreno_load_gpu(struct drm_device *dev);
--
2.25.1
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next prev parent reply other threads:[~2020-07-20 15:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-20 15:40 [PATCH v10 00/13] iommu/arm-smmu: Add Adreno SMMU specific implementation Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 01/13] iommu/arm-smmu: Pass io-pgtable config to implementation specific function Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 02/13] iommu/arm-smmu: Add support for split pagetables Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 03/13] iommu/arm-smmu: Add implementation hooks to configure contexts Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 04/13] iommu/arm-smmu-qcom: Add implementation for the adreno GPU SMMU Jordan Crouse
2020-07-27 6:27 ` Bjorn Andersson
2020-07-27 14:57 ` Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 05/13] iommu: Add a domain attribute to get/set a pagetable configuration Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 06/13] iommu/arm-smmu-qcom: Get and set the pagetable config for split pagetables Jordan Crouse
2020-07-26 17:03 ` [Freedreno] " Rob Clark
2020-07-27 15:03 ` Jordan Crouse
2020-07-27 17:17 ` Rob Clark
2020-07-20 15:40 ` [PATCH v10 07/13] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU Jordan Crouse
2020-07-26 16:55 ` Rob Clark
2020-07-20 15:40 ` [PATCH v10 08/13] drm/msm: Add a context pointer to the submitqueue Jordan Crouse
2020-07-26 17:09 ` Rob Clark
2020-07-20 15:40 ` [PATCH v10 09/13] drm/msm: Set the global virtual address range from the IOMMU domain Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 10/13] drm/msm: Add support to create a local pagetable Jordan Crouse
2020-07-20 15:40 ` Jordan Crouse [this message]
2020-07-20 15:40 ` [PATCH v10 12/13] drm/msm/a6xx: Add support for per-instance pagetables Jordan Crouse
2020-07-20 15:40 ` [PATCH v10 13/13] arm: dts: qcom: sm845: Set the compatible string for the GPU SMMU Jordan Crouse
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