Nearly all of the buffer allocations for kernel allocate an buffer object,
virtual address and GPU iova at the same time. Make a helper function to
handle the details.
Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 22 +++-------------
drivers/gpu/drm/msm/adreno/a5xx_power.c | 14 +++-------
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 26 +++++--------------
drivers/gpu/drm/msm/msm_drv.h | 6 +++++
drivers/gpu/drm/msm/msm_fbdev.c | 35 ++++++++++---------------
drivers/gpu/drm/msm/msm_gem.c | 46 +++++++++++++++++++++++++++++++++
drivers/gpu/drm/msm/msm_ringbuffer.c | 12 ++++-----
7 files changed, 86 insertions(+), 75 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index 3acbba1..e533007 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -269,28 +269,14 @@ static int a5xx_me_init(struct msm_gpu *gpu)
static struct drm_gem_object *a5xx_ucode_load_bo(struct msm_gpu *gpu,
const struct firmware *fw, u64 *iova)
{
- struct drm_device *drm = gpu->dev;
struct drm_gem_object *bo;
void *ptr;
- bo = msm_gem_new_locked(drm, fw->size - 4, MSM_BO_UNCACHED);
- if (IS_ERR(bo))
- return bo;
+ ptr = msm_gem_kernel_new_locked(gpu->dev, fw->size - 4,
+ MSM_BO_UNCACHED | MSM_BO_GPU_READONLY, gpu->aspace, &bo, iova);
- ptr = msm_gem_get_vaddr(bo);
- if (!ptr) {
- drm_gem_object_unreference(bo);
- return ERR_PTR(-ENOMEM);
- }
-
- if (iova) {
- int ret = msm_gem_get_iova(bo, gpu->aspace, iova);
-
- if (ret) {
- drm_gem_object_unreference(bo);
- return ERR_PTR(ret);
- }
- }
+ if (IS_ERR(ptr))
+ return ERR_CAST(ptr);
memcpy(ptr, &fw->data[4], fw->size - 4);
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_power.c b/drivers/gpu/drm/msm/adreno/a5xx_power.c
index 87af6ee..04aab1d 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_power.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_power.c
@@ -294,16 +294,10 @@ void a5xx_gpmu_ucode_init(struct msm_gpu *gpu)
*/
bosize = (cmds_size + (cmds_size / TYPE4_MAX_PAYLOAD) + 1) << 2;
- a5xx_gpu->gpmu_bo = msm_gem_new_locked(drm, bosize, MSM_BO_UNCACHED);
- if (IS_ERR(a5xx_gpu->gpmu_bo))
- goto err;
-
- if (msm_gem_get_iova(a5xx_gpu->gpmu_bo, gpu->aspace,
- &a5xx_gpu->gpmu_iova))
- goto err;
-
- ptr = msm_gem_get_vaddr(a5xx_gpu->gpmu_bo);
- if (!ptr)
+ ptr = msm_gem_kernel_new_locked(drm, bosize,
+ MSM_BO_UNCACHED | MSM_BO_GPU_READONLY, gpu->aspace,
+ &a5xx_gpu->gpmu_bo, &a5xx_gpu->gpmu_iova);
+ if (IS_ERR(ptr))
goto err;
while (cmds_size > 0) {
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 634e724..6d65684 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -384,29 +384,17 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
return ret;
}
- adreno_gpu->memptrs_bo = msm_gem_new(drm, sizeof(*adreno_gpu->memptrs),
- MSM_BO_UNCACHED);
- if (IS_ERR(adreno_gpu->memptrs_bo)) {
- ret = PTR_ERR(adreno_gpu->memptrs_bo);
- adreno_gpu->memptrs_bo = NULL;
- dev_err(drm->dev, "could not allocate memptrs: %d\n", ret);
- return ret;
- }
+ adreno_gpu->memptrs = msm_gem_kernel_new(drm,
+ sizeof(*adreno_gpu->memptrs), MSM_BO_UNCACHED, gpu->aspace,
+ &adreno_gpu->memptrs_bo, &adreno_gpu->memptrs_iova);
- adreno_gpu->memptrs = msm_gem_get_vaddr(adreno_gpu->memptrs_bo);
if (IS_ERR(adreno_gpu->memptrs)) {
- dev_err(drm->dev, "could not vmap memptrs\n");
- return -ENOMEM;
- }
-
- ret = msm_gem_get_iova(adreno_gpu->memptrs_bo, gpu->aspace,
- &adreno_gpu->memptrs_iova);
- if (ret) {
- dev_err(drm->dev, "could not map memptrs: %d\n", ret);
- return ret;
+ ret = PTR_ERR(adreno_gpu->memptrs);
+ adreno_gpu->memptrs = NULL;
+ dev_err(drm->dev, "could not allocate memptrs: %d\n", ret);
}
- return 0;
+ return ret;
}
void adreno_gpu_cleanup(struct adreno_gpu *adreno_gpu)
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 0fa9a7d..696413d 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -235,6 +235,12 @@ struct drm_gem_object *msm_gem_new(struct drm_device *dev,
uint32_t size, uint32_t flags);
struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev,
uint32_t size, uint32_t flags);
+void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
+ uint32_t flags, struct msm_gem_address_space *aspace,
+ struct drm_gem_object **bo, uint64_t *iova);
+void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size,
+ uint32_t flags, struct msm_gem_address_space *aspace,
+ struct drm_gem_object **bo, uint64_t *iova);
struct drm_gem_object *msm_gem_import(struct drm_device *dev,
struct dma_buf *dmabuf, struct sg_table *sgt);
diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c
index 5ecf4ff..bfb1fe7 100644
--- a/drivers/gpu/drm/msm/msm_fbdev.c
+++ b/drivers/gpu/drm/msm/msm_fbdev.c
@@ -78,6 +78,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
struct drm_framebuffer *fb = NULL;
struct fb_info *fbi = NULL;
struct drm_mode_fb_cmd2 mode_cmd = {0};
+ void *ptr;
uint64_t paddr;
int ret, size;
@@ -97,11 +98,18 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
/* allocate backing bo */
size = mode_cmd.pitches[0] * mode_cmd.height;
DBG("allocating %d bytes for fb %d", size, dev->primary->index);
- fbdev->bo = msm_gem_new(dev, size, MSM_BO_SCANOUT |
- MSM_BO_WC | MSM_BO_STOLEN);
- if (IS_ERR(fbdev->bo)) {
- ret = PTR_ERR(fbdev->bo);
- fbdev->bo = NULL;
+
+ /*
+ * NOTE: if we can be guaranteed to be able to map buffer
+ * in panic (ie. lock-safe, etc) we could avoid pinning the
+ * buffer now:
+ */
+ ptr = msm_gem_kernel_new(dev, size,
+ MSM_BO_SCANOUT | MSM_BO_WC | MSM_BO_STOLEN,
+ priv->kms->aspace, &fbdev->bo, &paddr);
+
+ if (IS_ERR(ptr)) {
+ ret = PTR_ERR(ptr);
dev_err(dev->dev, "failed to allocate buffer object: %d\n", ret);
goto fail;
}
@@ -119,17 +127,6 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
mutex_lock(&dev->struct_mutex);
- /*
- * NOTE: if we can be guaranteed to be able to map buffer
- * in panic (ie. lock-safe, etc) we could avoid pinning the
- * buffer now:
- */
- ret = msm_gem_get_iova(fbdev->bo, priv->kms->aspace, &paddr);
- if (ret) {
- dev_err(dev->dev, "failed to get buffer obj iova: %d\n", ret);
- goto fail_unlock;
- }
-
fbi = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(fbi)) {
dev_err(dev->dev, "failed to allocate fb info\n");
@@ -153,11 +150,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
dev->mode_config.fb_base = paddr;
- fbi->screen_base = msm_gem_get_vaddr(fbdev->bo);
- if (IS_ERR(fbi->screen_base)) {
- ret = PTR_ERR(fbi->screen_base);
- goto fail_unlock;
- }
+ fbi->screen_base = ptr;
fbi->screen_size = fbdev->bo->size;
fbi->fix.smem_start = paddr;
fbi->fix.smem_len = fbdev->bo->size;
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 65f3554..6a4e8d0 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -1018,3 +1018,49 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev,
drm_gem_object_unreference_unlocked(obj);
return ERR_PTR(ret);
}
+
+static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
+ uint32_t flags, struct msm_gem_address_space *aspace,
+ struct drm_gem_object **bo, uint64_t *iova, bool locked)
+{
+ void *vaddr;
+ struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked);
+ int ret;
+
+ if (IS_ERR(obj))
+ return ERR_CAST(obj);
+
+ if (iova) {
+ ret = msm_gem_get_iova(obj, aspace, iova);
+ if (ret) {
+ drm_gem_object_unreference(obj);
+ return ERR_PTR(ret);
+ }
+ }
+
+ vaddr = msm_gem_get_vaddr(obj);
+ if (!vaddr) {
+ msm_gem_put_iova(obj, aspace);
+ drm_gem_object_unreference(obj);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ if (bo)
+ *bo = obj;
+
+ return vaddr;
+}
+
+void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
+ uint32_t flags, struct msm_gem_address_space *aspace,
+ struct drm_gem_object **bo, uint64_t *iova)
+{
+ return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false);
+}
+
+void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size,
+ uint32_t flags, struct msm_gem_address_space *aspace,
+ struct drm_gem_object **bo, uint64_t *iova)
+{
+ return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true);
+}
diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.c b/drivers/gpu/drm/msm/msm_ringbuffer.c
index 791bca3..bf065a5 100644
--- a/drivers/gpu/drm/msm/msm_ringbuffer.c
+++ b/drivers/gpu/drm/msm/msm_ringbuffer.c
@@ -33,16 +33,14 @@ struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int size)
}
ring->gpu = gpu;
- ring->bo = msm_gem_new(gpu->dev, size, MSM_BO_WC);
- if (IS_ERR(ring->bo)) {
- ret = PTR_ERR(ring->bo);
- ring->bo = NULL;
- goto fail;
- }
- ring->start = msm_gem_get_vaddr(ring->bo);
+ /* Pass NULL for the iova pointer - we will map it later */
+ ring->start = msm_gem_kernel_new(gpu->dev, size, MSM_BO_WC,
+ gpu->aspace, &ring->bo, NULL);
+
if (IS_ERR(ring->start)) {
ret = PTR_ERR(ring->start);
+ ring->start = 0;
goto fail;
}
ring->end = ring->start + (size / 4);
--
1.9.1
--
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