From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/gpu/drm/etnaviv/etnaviv_drv.c | 168 +++++++++++++++++++++++++++++++------------------------
1 files changed, 94 insertions(+), 74 deletions(-)
diff --git a/kernel/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/kernel/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index 00675fc..a9a3afa 100644
--- a/kernel/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/kernel/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -4,8 +4,17 @@
*/
#include <linux/component.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
#include <linux/of_platform.h>
+#include <linux/uaccess.h>
+
+#include <drm/drm_debugfs.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_file.h>
+#include <drm/drm_ioctl.h>
#include <drm/drm_of.h>
+#include <drm/drm_prime.h>
#include "etnaviv_cmdbuf.h"
#include "etnaviv_drv.h"
@@ -41,26 +50,38 @@
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct etnaviv_file_private *ctx;
- int i;
+ int ret, i;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
+ ctx->mmu = etnaviv_iommu_context_init(priv->mmu_global,
+ priv->cmdbuf_suballoc);
+ if (!ctx->mmu) {
+ ret = -ENOMEM;
+ goto out_free;
+ }
+
for (i = 0; i < ETNA_MAX_PIPES; i++) {
struct etnaviv_gpu *gpu = priv->gpu[i];
- struct drm_sched_rq *rq;
+ struct drm_gpu_scheduler *sched;
if (gpu) {
- rq = &gpu->sched.sched_rq[DRM_SCHED_PRIORITY_NORMAL];
+ sched = &gpu->sched;
drm_sched_entity_init(&ctx->sched_entity[i],
- &rq, 1, NULL);
+ DRM_SCHED_PRIORITY_NORMAL, &sched,
+ 1, NULL);
}
}
file->driver_priv = ctx;
return 0;
+
+out_free:
+ kfree(ctx);
+ return ret;
}
static void etnaviv_postclose(struct drm_device *dev, struct drm_file *file)
@@ -72,15 +93,11 @@
for (i = 0; i < ETNA_MAX_PIPES; i++) {
struct etnaviv_gpu *gpu = priv->gpu[i];
- if (gpu) {
- mutex_lock(&gpu->lock);
- if (gpu->lastctx == ctx)
- gpu->lastctx = NULL;
- mutex_unlock(&gpu->lock);
-
+ if (gpu)
drm_sched_entity_destroy(&ctx->sched_entity[i]);
- }
}
+
+ etnaviv_iommu_context_put(ctx->mmu);
kfree(ctx);
}
@@ -113,12 +130,29 @@
static int etnaviv_mmu_show(struct etnaviv_gpu *gpu, struct seq_file *m)
{
struct drm_printer p = drm_seq_file_printer(m);
+ struct etnaviv_iommu_context *mmu_context;
seq_printf(m, "Active Objects (%s):\n", dev_name(gpu->dev));
- mutex_lock(&gpu->mmu->lock);
- drm_mm_print(&gpu->mmu->mm, &p);
- mutex_unlock(&gpu->mmu->lock);
+ /*
+ * Lock the GPU to avoid a MMU context switch just now and elevate
+ * the refcount of the current context to avoid it disappearing from
+ * under our feet.
+ */
+ mutex_lock(&gpu->lock);
+ mmu_context = gpu->mmu_context;
+ if (mmu_context)
+ etnaviv_iommu_context_get(mmu_context);
+ mutex_unlock(&gpu->lock);
+
+ if (!mmu_context)
+ return 0;
+
+ mutex_lock(&mmu_context->lock);
+ drm_mm_print(&mmu_context->mm, &p);
+ mutex_unlock(&mmu_context->lock);
+
+ etnaviv_iommu_context_put(mmu_context);
return 0;
}
@@ -197,21 +231,11 @@
{"ring", show_each_gpu, 0, etnaviv_ring_show},
};
-static int etnaviv_debugfs_init(struct drm_minor *minor)
+static void etnaviv_debugfs_init(struct drm_minor *minor)
{
- struct drm_device *dev = minor->dev;
- int ret;
-
- ret = drm_debugfs_create_files(etnaviv_debugfs_list,
- ARRAY_SIZE(etnaviv_debugfs_list),
- minor->debugfs_root, minor);
-
- if (ret) {
- dev_err(dev->dev, "could not install etnaviv_debugfs_list\n");
- return ret;
- }
-
- return ret;
+ drm_debugfs_create_files(etnaviv_debugfs_list,
+ ARRAY_SIZE(etnaviv_debugfs_list),
+ minor->debugfs_root, minor);
}
#endif
@@ -249,11 +273,6 @@
args->flags, &args->handle);
}
-#define TS(t) ((struct timespec){ \
- .tv_sec = (t).tv_sec, \
- .tv_nsec = (t).tv_nsec \
-})
-
static int etnaviv_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
struct drm_file *file)
{
@@ -268,9 +287,9 @@
if (!obj)
return -ENOENT;
- ret = etnaviv_gem_cpu_prep(obj, args->op, &TS(args->timeout));
+ ret = etnaviv_gem_cpu_prep(obj, args->op, &args->timeout);
- drm_gem_object_put_unlocked(obj);
+ drm_gem_object_put(obj);
return ret;
}
@@ -291,7 +310,7 @@
ret = etnaviv_gem_cpu_fini(obj);
- drm_gem_object_put_unlocked(obj);
+ drm_gem_object_put(obj);
return ret;
}
@@ -311,7 +330,7 @@
return -ENOENT;
ret = etnaviv_gem_mmap_offset(obj, &args->offset);
- drm_gem_object_put_unlocked(obj);
+ drm_gem_object_put(obj);
return ret;
}
@@ -321,7 +340,7 @@
{
struct drm_etnaviv_wait_fence *args = data;
struct etnaviv_drm_private *priv = dev->dev_private;
- struct timespec *timeout = &TS(args->timeout);
+ struct drm_etnaviv_timespec *timeout = &args->timeout;
struct etnaviv_gpu *gpu;
if (args->flags & ~(ETNA_WAIT_NONBLOCK))
@@ -345,7 +364,6 @@
struct drm_file *file)
{
struct drm_etnaviv_gem_userptr *args = data;
- int access;
if (args->flags & ~(ETNA_USERPTR_READ|ETNA_USERPTR_WRITE) ||
args->flags == 0)
@@ -357,12 +375,7 @@
args->user_ptr & ~PAGE_MASK)
return -EINVAL;
- if (args->flags & ETNA_USERPTR_WRITE)
- access = VERIFY_WRITE;
- else
- access = VERIFY_READ;
-
- if (!access_ok(access, (void __user *)(unsigned long)args->user_ptr,
+ if (!access_ok((void __user *)(unsigned long)args->user_ptr,
args->user_size))
return -EFAULT;
@@ -376,7 +389,7 @@
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct drm_etnaviv_gem_wait *args = data;
- struct timespec *timeout = &TS(args->timeout);
+ struct drm_etnaviv_timespec *timeout = &args->timeout;
struct drm_gem_object *obj;
struct etnaviv_gpu *gpu;
int ret;
@@ -400,7 +413,7 @@
ret = etnaviv_gem_wait_bo(gpu, obj, timeout);
- drm_gem_object_put_unlocked(obj);
+ drm_gem_object_put(obj);
return ret;
}
@@ -442,17 +455,17 @@
static const struct drm_ioctl_desc etnaviv_ioctls[] = {
#define ETNA_IOCTL(n, func, flags) \
DRM_IOCTL_DEF_DRV(ETNAVIV_##n, etnaviv_ioctl_##func, flags)
- ETNA_IOCTL(GET_PARAM, get_param, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(GEM_NEW, gem_new, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(GEM_INFO, gem_info, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(GEM_CPU_PREP, gem_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(GEM_CPU_FINI, gem_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(GEM_SUBMIT, gem_submit, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(WAIT_FENCE, wait_fence, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(GEM_USERPTR, gem_userptr, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(GEM_WAIT, gem_wait, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(PM_QUERY_DOM, pm_query_dom, DRM_AUTH|DRM_RENDER_ALLOW),
- ETNA_IOCTL(PM_QUERY_SIG, pm_query_sig, DRM_AUTH|DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GET_PARAM, get_param, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GEM_NEW, gem_new, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GEM_INFO, gem_info, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GEM_CPU_PREP, gem_cpu_prep, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GEM_CPU_FINI, gem_cpu_fini, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GEM_SUBMIT, gem_submit, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(WAIT_FENCE, wait_fence, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GEM_USERPTR, gem_userptr, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(GEM_WAIT, gem_wait, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(PM_QUERY_DOM, pm_query_dom, DRM_RENDER_ALLOW),
+ ETNA_IOCTL(PM_QUERY_SIG, pm_query_sig, DRM_RENDER_ALLOW),
};
static const struct vm_operations_struct vm_ops = {
@@ -474,18 +487,13 @@
};
static struct drm_driver etnaviv_drm_driver = {
- .driver_features = DRIVER_GEM |
- DRIVER_PRIME |
- DRIVER_RENDER,
+ .driver_features = DRIVER_GEM | DRIVER_RENDER,
.open = etnaviv_open,
.postclose = etnaviv_postclose,
.gem_free_object_unlocked = etnaviv_gem_free_object,
.gem_vm_ops = &vm_ops,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_export = drm_gem_prime_export,
- .gem_prime_import = drm_gem_prime_import,
- .gem_prime_res_obj = etnaviv_gem_prime_res_obj,
.gem_prime_pin = etnaviv_gem_prime_pin,
.gem_prime_unpin = etnaviv_gem_prime_unpin,
.gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table,
@@ -503,7 +511,7 @@
.desc = "etnaviv DRM",
.date = "20151214",
.major = 1,
- .minor = 2,
+ .minor = 3,
};
/*
@@ -523,7 +531,7 @@
if (!priv) {
dev_err(dev, "failed to allocate private data\n");
ret = -ENOMEM;
- goto out_unref;
+ goto out_put;
}
drm->dev_private = priv;
@@ -533,27 +541,37 @@
mutex_init(&priv->gem_lock);
INIT_LIST_HEAD(&priv->gem_list);
priv->num_gpus = 0;
+ priv->shm_gfp_mask = GFP_HIGHUSER | __GFP_RETRY_MAYFAIL | __GFP_NOWARN;
+
+ priv->cmdbuf_suballoc = etnaviv_cmdbuf_suballoc_new(drm->dev);
+ if (IS_ERR(priv->cmdbuf_suballoc)) {
+ dev_err(drm->dev, "Failed to create cmdbuf suballocator\n");
+ ret = PTR_ERR(priv->cmdbuf_suballoc);
+ goto out_free_priv;
+ }
dev_set_drvdata(dev, drm);
ret = component_bind_all(dev, drm);
if (ret < 0)
- goto out_bind;
+ goto out_destroy_suballoc;
load_gpu(drm);
ret = drm_dev_register(drm, 0);
if (ret)
- goto out_register;
+ goto out_unbind;
return 0;
-out_register:
+out_unbind:
component_unbind_all(dev, drm);
-out_bind:
+out_destroy_suballoc:
+ etnaviv_cmdbuf_suballoc_destroy(priv->cmdbuf_suballoc);
+out_free_priv:
kfree(priv);
-out_unref:
- drm_dev_unref(drm);
+out_put:
+ drm_dev_put(drm);
return ret;
}
@@ -569,10 +587,12 @@
dev->dma_parms = NULL;
+ etnaviv_cmdbuf_suballoc_destroy(priv->cmdbuf_suballoc);
+
drm->dev_private = NULL;
kfree(priv);
- drm_dev_unref(drm);
+ drm_dev_put(drm);
}
static const struct component_master_ops etnaviv_master_ops = {
@@ -706,7 +726,7 @@
module_exit(etnaviv_exit);
MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
-MODULE_AUTHOR("Russell King <rmk+kernel@arm.linux.org.uk>");
+MODULE_AUTHOR("Russell King <rmk+kernel@armlinux.org.uk>");
MODULE_AUTHOR("Lucas Stach <l.stach@pengutronix.de>");
MODULE_DESCRIPTION("etnaviv DRM Driver");
MODULE_LICENSE("GPL v2");
--
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