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path: root/drivers/gpu/drm/panfrost
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Diffstat (limited to 'drivers/gpu/drm/panfrost')
-rw-r--r--drivers/gpu/drm/panfrost/Kconfig2
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_devfreq.c1
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_device.c1
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_device.h1
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_drv.c47
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_gem.c2
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_gpu.c19
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_job.c4
8 files changed, 50 insertions, 27 deletions
diff --git a/drivers/gpu/drm/panfrost/Kconfig b/drivers/gpu/drm/panfrost/Kconfig
index 7f5e572daa2d..591611dc4e34 100644
--- a/drivers/gpu/drm/panfrost/Kconfig
+++ b/drivers/gpu/drm/panfrost/Kconfig
@@ -3,7 +3,7 @@
config DRM_PANFROST
tristate "Panfrost (DRM support for ARM Mali Midgard/Bifrost GPUs)"
depends on DRM
- depends on ARM || ARM64 || COMPILE_TEST
+ depends on ARM || ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)
depends on MMU
select DRM_SCHED
select IOMMU_SUPPORT
diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
index a8121ae67ee3..238bd1d89d43 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -7,6 +7,7 @@
#include <linux/regulator/consumer.h>
#include "panfrost_device.h"
+#include "panfrost_devfreq.h"
#include "panfrost_features.h"
#include "panfrost_issues.h"
#include "panfrost_gpu.h"
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
index 91e8fb0f2b25..970f669c6d29 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.c
+++ b/drivers/gpu/drm/panfrost/panfrost_device.c
@@ -98,6 +98,7 @@ int panfrost_device_init(struct panfrost_device *pfdev)
struct resource *res;
mutex_init(&pfdev->sched_lock);
+ mutex_init(&pfdev->reset_lock);
INIT_LIST_HEAD(&pfdev->scheduled_jobs);
spin_lock_init(&pfdev->hwaccess_lock);
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h
index 1ba48d105763..56f452dfb490 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.h
+++ b/drivers/gpu/drm/panfrost/panfrost_device.h
@@ -78,6 +78,7 @@ struct panfrost_device {
struct list_head scheduled_jobs;
struct mutex sched_lock;
+ struct mutex reset_lock;
struct {
struct devfreq *devfreq;
diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index c06af78ab833..94b0819ad50b 100644
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c
+++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -3,8 +3,6 @@
/* Copyright 2019 Linaro, Ltd., Rob Herring <robh@kernel.org> */
/* Copyright 2019 Collabora ltd. */
-#include <linux/bitfield.h>
-#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/pagemap.h>
@@ -172,13 +170,27 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data,
{
struct panfrost_device *pfdev = dev->dev_private;
struct drm_panfrost_submit *args = data;
- struct drm_syncobj *sync_out;
+ struct drm_syncobj *sync_out = NULL;
struct panfrost_job *job;
int ret = 0;
+ if (!args->jc)
+ return -EINVAL;
+
+ if (args->requirements && args->requirements != PANFROST_JD_REQ_FS)
+ return -EINVAL;
+
+ if (args->out_sync > 0) {
+ sync_out = drm_syncobj_find(file, args->out_sync);
+ if (!sync_out)
+ return -ENODEV;
+ }
+
job = kzalloc(sizeof(*job), GFP_KERNEL);
- if (!job)
- return -ENOMEM;
+ if (!job) {
+ ret = -ENOMEM;
+ goto fail_out_sync;
+ }
kref_init(&job->refcount);
@@ -190,25 +202,24 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data,
ret = panfrost_copy_in_sync(dev, file, args, job);
if (ret)
- goto fail;
+ goto fail_job;
ret = panfrost_lookup_bos(dev, file, args, job);
if (ret)
- goto fail;
+ goto fail_job;
ret = panfrost_job_push(job);
if (ret)
- goto fail;
+ goto fail_job;
/* Update the return sync object for the job */
- sync_out = drm_syncobj_find(file, args->out_sync);
- if (sync_out) {
+ if (sync_out)
drm_syncobj_replace_fence(sync_out, job->render_done_fence);
- drm_syncobj_put(sync_out);
- }
-fail:
+fail_job:
panfrost_job_put(job);
+fail_out_sync:
+ drm_syncobj_put(sync_out);
return ret;
}
@@ -384,16 +395,15 @@ static int panfrost_probe(struct platform_device *pdev)
err = panfrost_device_init(pfdev);
if (err) {
- dev_err(&pdev->dev, "Fatal error during GPU init\n");
+ if (err != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Fatal error during GPU init\n");
goto err_out0;
}
- dma_set_mask_and_coherent(pfdev->dev,
- DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features)));
-
err = panfrost_devfreq_init(pfdev);
if (err) {
- dev_err(&pdev->dev, "Fatal error during devfreq init\n");
+ if (err != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Fatal error during devfreq init\n");
goto err_out1;
}
@@ -410,6 +420,7 @@ static int panfrost_probe(struct platform_device *pdev)
err_out1:
panfrost_device_fini(pfdev);
err_out0:
+ pm_runtime_disable(pfdev->dev);
drm_dev_put(ddev);
return err;
}
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c
index 8a0376283a21..a5528a360ef4 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -14,7 +14,7 @@
/* Called DRM core on the last userspace/kernel unreference of the
* BO.
*/
-void panfrost_gem_free_object(struct drm_gem_object *obj)
+static void panfrost_gem_free_object(struct drm_gem_object *obj)
{
struct panfrost_gem_object *bo = to_panfrost_bo(obj);
struct panfrost_device *pfdev = obj->dev->dev_private;
diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c
index aceaf6e44a09..58ef25573cda 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gpu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c
@@ -2,8 +2,10 @@
/* Copyright 2018 Marty E. Plummer <hanetzer@startmail.com> */
/* Copyright 2019 Linaro, Ltd., Rob Herring <robh@kernel.org> */
/* Copyright 2019 Collabora ltd. */
+#include <linux/bitfield.h>
#include <linux/bitmap.h>
#include <linux/delay.h>
+#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/iopoll.h>
@@ -276,13 +278,13 @@ static void panfrost_gpu_init_features(struct panfrost_device *pfdev)
pfdev->features.hw_issues);
dev_info(pfdev->dev, "Features: L2:0x%08x Shader:0x%08x Tiler:0x%08x Mem:0x%0x MMU:0x%08x AS:0x%x JS:0x%x",
- gpu_read(pfdev, GPU_L2_FEATURES),
- gpu_read(pfdev, GPU_CORE_FEATURES),
- gpu_read(pfdev, GPU_TILER_FEATURES),
- gpu_read(pfdev, GPU_MEM_FEATURES),
- gpu_read(pfdev, GPU_MMU_FEATURES),
- gpu_read(pfdev, GPU_AS_PRESENT),
- gpu_read(pfdev, GPU_JS_PRESENT));
+ pfdev->features.l2_features,
+ pfdev->features.core_features,
+ pfdev->features.tiler_features,
+ pfdev->features.mem_features,
+ pfdev->features.mmu_features,
+ pfdev->features.as_present,
+ pfdev->features.js_present);
dev_info(pfdev->dev, "shader_present=0x%0llx l2_present=0x%0llx",
pfdev->features.shader_present, pfdev->features.l2_present);
@@ -332,6 +334,9 @@ int panfrost_gpu_init(struct panfrost_device *pfdev)
panfrost_gpu_init_features(pfdev);
+ dma_set_mask_and_coherent(pfdev->dev,
+ DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features)));
+
irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu");
if (irq <= 0)
return -ENODEV;
diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c
index 0a7ed04f7d52..a5716c8fe8b3 100644
--- a/drivers/gpu/drm/panfrost/panfrost_job.c
+++ b/drivers/gpu/drm/panfrost/panfrost_job.c
@@ -384,6 +384,8 @@ static void panfrost_job_timedout(struct drm_sched_job *sched_job)
job_read(pfdev, JS_TAIL_LO(js)),
sched_job);
+ mutex_lock(&pfdev->reset_lock);
+
for (i = 0; i < NUM_JOB_SLOTS; i++)
drm_sched_stop(&pfdev->js->queue[i].sched);
@@ -406,6 +408,8 @@ static void panfrost_job_timedout(struct drm_sched_job *sched_job)
/* restart scheduler after GPU is usable again */
for (i = 0; i < NUM_JOB_SLOTS; i++)
drm_sched_start(&pfdev->js->queue[i].sched, true);
+
+ mutex_unlock(&pfdev->reset_lock);
}
static const struct drm_sched_backend_ops panfrost_sched_ops = {
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-07 10:30:30 +0000