From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 24 Nov 2017 16:56:37 +0100
Subject: drm/etnaviv: move cmdbuf into submit object
Git-commit: 2f9225dbc09abe7cacb9820ebdeef5b6c0eb9c72
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Less dynamic allocations and slims down the cmdbuf object to only the
required information, as everything else is already available in the
submit object.
This also simplifies buffer and mappings lifetime management, as they
are now exlusively attached to the submit object and not additionally
to the cmdbuf.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 10 +--
drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c | 17 +-----
drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h | 13 +----
drivers/gpu/drm/etnaviv/etnaviv_drv.c | 2
drivers/gpu/drm/etnaviv/etnaviv_dump.c | 23 ++++-----
drivers/gpu/drm/etnaviv/etnaviv_gem.h | 3 +
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 28 +++++------
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 68 ++++++++++-----------------
drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 7 +-
drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c | 2
10 files changed, 72 insertions(+), 101 deletions(-)
--- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
@@ -166,7 +166,7 @@ static u32 etnaviv_buffer_reserve(struct
u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu)
{
- struct etnaviv_cmdbuf *buffer = gpu->buffer;
+ struct etnaviv_cmdbuf *buffer = &gpu->buffer;
lockdep_assert_held(&gpu->lock);
@@ -182,7 +182,7 @@ u16 etnaviv_buffer_init(struct etnaviv_g
u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr)
{
- struct etnaviv_cmdbuf *buffer = gpu->buffer;
+ struct etnaviv_cmdbuf *buffer = &gpu->buffer;
lockdep_assert_held(&gpu->lock);
@@ -217,7 +217,7 @@ u16 etnaviv_buffer_config_mmuv2(struct e
void etnaviv_buffer_end(struct etnaviv_gpu *gpu)
{
- struct etnaviv_cmdbuf *buffer = gpu->buffer;
+ struct etnaviv_cmdbuf *buffer = &gpu->buffer;
unsigned int waitlink_offset = buffer->user_size - 16;
u32 link_target, flush = 0;
@@ -261,7 +261,7 @@ void etnaviv_buffer_end(struct etnaviv_g
/* Append a 'sync point' to the ring buffer. */
void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event)
{
- struct etnaviv_cmdbuf *buffer = gpu->buffer;
+ struct etnaviv_cmdbuf *buffer = &gpu->buffer;
unsigned int waitlink_offset = buffer->user_size - 16;
u32 dwords, target;
@@ -300,7 +300,7 @@ void etnaviv_sync_point_queue(struct etn
void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
unsigned int event, struct etnaviv_cmdbuf *cmdbuf)
{
- struct etnaviv_cmdbuf *buffer = gpu->buffer;
+ struct etnaviv_cmdbuf *buffer = &gpu->buffer;
unsigned int waitlink_offset = buffer->user_size - 16;
u32 return_target, return_dwords;
u32 link_target, link_dwords;
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
@@ -86,19 +86,11 @@ void etnaviv_cmdbuf_suballoc_destroy(str
kfree(suballoc);
}
-struct etnaviv_cmdbuf *
-etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size,
- size_t nr_bos)
+int etnaviv_cmdbuf_init(struct etnaviv_cmdbuf_suballoc *suballoc,
+ struct etnaviv_cmdbuf *cmdbuf, u32 size)
{
- struct etnaviv_cmdbuf *cmdbuf;
- size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]),
- sizeof(*cmdbuf));
int granule_offs, order, ret;
- cmdbuf = kzalloc(sz, GFP_KERNEL);
- if (!cmdbuf)
- return NULL;
-
cmdbuf->suballoc = suballoc;
cmdbuf->size = size;
@@ -116,7 +108,7 @@ retry:
if (!ret) {
dev_err(suballoc->gpu->dev,
"Timeout waiting for cmdbuf space\n");
- return NULL;
+ return -ETIMEDOUT;
}
goto retry;
}
@@ -124,7 +116,7 @@ retry:
cmdbuf->suballoc_offset = granule_offs * SUBALLOC_GRANULE;
cmdbuf->vaddr = suballoc->vaddr + cmdbuf->suballoc_offset;
- return cmdbuf;
+ return 0;
}
void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
@@ -140,7 +132,6 @@ void etnaviv_cmdbuf_free(struct etnaviv_
suballoc->free_space = 1;
mutex_unlock(&suballoc->lock);
wake_up_all(&suballoc->free_event);
- kfree(cmdbuf);
}
u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf)
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
@@ -33,22 +33,15 @@ struct etnaviv_cmdbuf {
void *vaddr;
u32 size;
u32 user_size;
- /* fence after which this buffer is to be disposed */
- struct dma_fence *fence;
- /* per GPU in-flight list */
- struct list_head node;
- /* BOs attached to this command buffer */
- unsigned int nr_bos;
- struct etnaviv_vram_mapping *bo_map[0];
};
struct etnaviv_cmdbuf_suballoc *
etnaviv_cmdbuf_suballoc_new(struct etnaviv_gpu * gpu);
void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc);
-struct etnaviv_cmdbuf *
-etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size,
- size_t nr_bos);
+
+int etnaviv_cmdbuf_init(struct etnaviv_cmdbuf_suballoc *suballoc,
+ struct etnaviv_cmdbuf *cmdbuf, u32 size);
void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf);
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -172,7 +172,7 @@ static int etnaviv_mmu_show(struct etnav
static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu, struct seq_file *m)
{
- struct etnaviv_cmdbuf *buf = gpu->buffer;
+ struct etnaviv_cmdbuf *buf = &gpu->buffer;
u32 size = buf->size;
u32 *ptr = buf->vaddr;
u32 i;
--- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
@@ -120,7 +120,7 @@ void etnaviv_core_dump(struct etnaviv_gp
struct core_dump_iterator iter;
struct etnaviv_vram_mapping *vram;
struct etnaviv_gem_object *obj;
- struct etnaviv_cmdbuf *cmd;
+ struct etnaviv_gem_submit *submit;
unsigned int n_obj, n_bomap_pages;
size_t file_size, mmu_size;
__le64 *bomap, *bomap_start;
@@ -132,11 +132,11 @@ void etnaviv_core_dump(struct etnaviv_gp
n_bomap_pages = 0;
file_size = ARRAY_SIZE(etnaviv_dump_registers) *
sizeof(struct etnaviv_dump_registers) +
- mmu_size + gpu->buffer->size;
+ mmu_size + gpu->buffer.size;
/* Add in the active command buffers */
- list_for_each_entry(cmd, &gpu->active_cmd_list, node) {
- file_size += cmd->size;
+ list_for_each_entry(submit, &gpu->active_submit_list, node) {
+ file_size += submit->cmdbuf.size;
n_obj++;
}
@@ -176,13 +176,14 @@ void etnaviv_core_dump(struct etnaviv_gp
etnaviv_core_dump_registers(&iter, gpu);
etnaviv_core_dump_mmu(&iter, gpu, mmu_size);
- etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer->vaddr,
- gpu->buffer->size,
- etnaviv_cmdbuf_get_va(gpu->buffer));
-
- list_for_each_entry(cmd, &gpu->active_cmd_list, node)
- etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD, cmd->vaddr,
- cmd->size, etnaviv_cmdbuf_get_va(cmd));
+ etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer.vaddr,
+ gpu->buffer.size,
+ etnaviv_cmdbuf_get_va(&gpu->buffer));
+
+ list_for_each_entry(submit, &gpu->active_submit_list, node)
+ etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD,
+ submit->cmdbuf.vaddr, submit->cmdbuf.size,
+ etnaviv_cmdbuf_get_va(&submit->cmdbuf));
/* Reserve space for the bomap */
if (n_bomap_pages) {
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
@@ -18,6 +18,7 @@
#define __ETNAVIV_GEM_H__
#include <linux/reservation.h>
+#include "etnaviv_cmdbuf.h"
#include "etnaviv_drv.h"
struct dma_fence;
@@ -103,6 +104,8 @@ struct etnaviv_gem_submit {
struct kref refcount;
struct etnaviv_gpu *gpu;
struct dma_fence *out_fence, *in_fence;
+ struct list_head node; /* GPU active submit list */
+ struct etnaviv_cmdbuf cmdbuf;
u32 exec_state;
u32 flags;
unsigned int nr_pmrs;
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -354,6 +354,9 @@ static void submit_cleanup(struct kref *
container_of(kref, struct etnaviv_gem_submit, refcount);
unsigned i;
+ if (submit->cmdbuf.suballoc)
+ etnaviv_cmdbuf_free(&submit->cmdbuf);
+
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
@@ -391,7 +394,6 @@ int etnaviv_ioctl_gem_submit(struct drm_
struct drm_etnaviv_gem_submit_pmr *pmrs;
struct drm_etnaviv_gem_submit_bo *bos;
struct etnaviv_gem_submit *submit;
- struct etnaviv_cmdbuf *cmdbuf;
struct etnaviv_gpu *gpu;
struct sync_file *sync_file = NULL;
struct ww_acquire_ctx ticket;
@@ -432,16 +434,11 @@ int etnaviv_ioctl_gem_submit(struct drm_
relocs = kvmalloc_array(args->nr_relocs, sizeof(*relocs), GFP_KERNEL);
pmrs = kvmalloc_array(args->nr_pmrs, sizeof(*pmrs), GFP_KERNEL);
stream = kvmalloc_array(1, args->stream_size, GFP_KERNEL);
- cmdbuf = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc,
- ALIGN(args->stream_size, 8) + 8,
- args->nr_bos);
- if (!bos || !relocs || !pmrs || !stream || !cmdbuf) {
+ if (!bos || !relocs || !pmrs || !stream) {
ret = -ENOMEM;
goto err_submit_cmds;
}
- cmdbuf->ctx = file->driver_priv;
-
ret = copy_from_user(bos, u64_to_user_ptr(args->bos),
args->nr_bos * sizeof(*bos));
if (ret) {
@@ -486,6 +483,12 @@ int etnaviv_ioctl_gem_submit(struct drm_
goto err_submit_ww_acquire;
}
+ ret = etnaviv_cmdbuf_init(gpu->cmdbuf_suballoc, &submit->cmdbuf,
+ ALIGN(args->stream_size, 8) + 8);
+ if (ret)
+ goto err_submit_objects;
+
+ submit->cmdbuf.ctx = file->driver_priv;
submit->exec_state = args->exec_state;
submit->flags = args->flags;
@@ -528,17 +531,15 @@ int etnaviv_ioctl_gem_submit(struct drm_
if (ret)
goto err_submit_objects;
- memcpy(cmdbuf->vaddr, stream, args->stream_size);
- cmdbuf->user_size = ALIGN(args->stream_size, 8);
+ memcpy(submit->cmdbuf.vaddr, stream, args->stream_size);
+ submit->cmdbuf.user_size = ALIGN(args->stream_size, 8);
- ret = etnaviv_gpu_submit(gpu, submit, cmdbuf);
+ ret = etnaviv_gpu_submit(gpu, submit);
if (ret)
goto err_submit_objects;
submit_attach_object_fences(submit);
- cmdbuf = NULL;
-
if (args->flags & ETNA_SUBMIT_FENCE_FD_OUT) {
/*
* This can be improved: ideally we want to allocate the sync
@@ -566,9 +567,6 @@ err_submit_ww_acquire:
err_submit_cmds:
if (ret && (out_fence_fd >= 0))
put_unused_fd(out_fence_fd);
- /* if we still own the cmdbuf */
- if (cmdbuf)
- etnaviv_cmdbuf_free(cmdbuf);
if (stream)
kvfree(stream);
if (bos)
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -644,7 +644,7 @@ static void etnaviv_gpu_hw_init(struct e
prefetch = etnaviv_buffer_init(gpu);
gpu_write(gpu, VIVS_HI_INTR_ENBL, ~0U);
- etnaviv_gpu_start_fe(gpu, etnaviv_cmdbuf_get_va(gpu->buffer),
+ etnaviv_gpu_start_fe(gpu, etnaviv_cmdbuf_get_va(&gpu->buffer),
prefetch);
}
@@ -717,15 +717,15 @@ int etnaviv_gpu_init(struct etnaviv_gpu
}
/* Create buffer: */
- gpu->buffer = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc, PAGE_SIZE, 0);
- if (!gpu->buffer) {
- ret = -ENOMEM;
+ ret = etnaviv_cmdbuf_init(gpu->cmdbuf_suballoc, &gpu->buffer,
+ PAGE_SIZE);
+ if (ret) {
dev_err(gpu->dev, "could not create command buffer\n");
goto destroy_iommu;
}
if (gpu->mmu->version == ETNAVIV_IOMMU_V1 &&
- etnaviv_cmdbuf_get_va(gpu->buffer) > 0x80000000) {
+ etnaviv_cmdbuf_get_va(&gpu->buffer) > 0x80000000) {
ret = -EINVAL;
dev_err(gpu->dev,
"command buffer outside valid memory window\n");
@@ -751,8 +751,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu
return 0;
free_buffer:
- etnaviv_cmdbuf_free(gpu->buffer);
- gpu->buffer = NULL;
+ etnaviv_cmdbuf_free(&gpu->buffer);
destroy_iommu:
etnaviv_iommu_destroy(gpu->mmu);
gpu->mmu = NULL;
@@ -1201,27 +1200,20 @@ static void retire_worker(struct work_st
struct etnaviv_gpu *gpu = container_of(work, struct etnaviv_gpu,
retire_work);
u32 fence = gpu->completed_fence;
- struct etnaviv_cmdbuf *cmdbuf, *tmp;
+ struct etnaviv_gem_submit *submit, *tmp;
unsigned int i;
mutex_lock(&gpu->lock);
- list_for_each_entry_safe(cmdbuf, tmp, &gpu->active_cmd_list, node) {
- if (!dma_fence_is_signaled(cmdbuf->fence))
+ list_for_each_entry_safe(submit, tmp, &gpu->active_submit_list, node) {
+ if (!dma_fence_is_signaled(submit->out_fence))
break;
- list_del(&cmdbuf->node);
- dma_fence_put(cmdbuf->fence);
+ list_del(&submit->node);
- for (i = 0; i < cmdbuf->nr_bos; i++) {
- struct etnaviv_vram_mapping *mapping = cmdbuf->bo_map[i];
- struct etnaviv_gem_object *etnaviv_obj = mapping->object;
-
- atomic_dec(&etnaviv_obj->gpu_active);
- /* drop the refcount taken in etnaviv_gpu_submit */
- etnaviv_gem_mapping_unreference(mapping);
- }
+ for (i = 0; i < submit->nr_bos; i++)
+ atomic_dec(&submit->bos[i].obj->gpu_active);
- etnaviv_cmdbuf_free(cmdbuf);
+ etnaviv_submit_put(submit);
/*
* We need to balance the runtime PM count caused by
* each submission. Upon submission, we increment
@@ -1375,9 +1367,8 @@ static void sync_point_perfmon_sample_po
/* add bo's to gpu's ring, and kick gpu: */
int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
- struct etnaviv_gem_submit *submit, struct etnaviv_cmdbuf *cmdbuf)
+ struct etnaviv_gem_submit *submit)
{
- struct dma_fence *fence;
unsigned int i, nr_events = 1, event[3];
int ret;
@@ -1403,8 +1394,8 @@ int etnaviv_gpu_submit(struct etnaviv_gp
mutex_lock(&gpu->lock);
- fence = etnaviv_gpu_fence_alloc(gpu);
- if (!fence) {
+ submit->out_fence = etnaviv_gpu_fence_alloc(gpu);
+ if (!submit->out_fence) {
for (i = 0; i < nr_events; i++)
event_free(gpu, event[i]);
@@ -1412,8 +1403,6 @@ int etnaviv_gpu_submit(struct etnaviv_gp
goto out_unlock;
}
- gpu->event[event[0]].fence = fence;
- submit->out_fence = dma_fence_get(fence);
gpu->active_fence = submit->out_fence->seqno;
if (submit->nr_pmrs) {
@@ -1423,7 +1412,10 @@ int etnaviv_gpu_submit(struct etnaviv_gp
etnaviv_sync_point_queue(gpu, event[1]);
}
- etnaviv_buffer_queue(gpu, submit->exec_state, event[0], cmdbuf);
+ kref_get(&submit->refcount);
+ gpu->event[event[0]].fence = submit->out_fence;
+ etnaviv_buffer_queue(gpu, submit->exec_state, event[0],
+ &submit->cmdbuf);
if (submit->nr_pmrs) {
gpu->event[event[2]].sync_point = &sync_point_perfmon_sample_post;
@@ -1432,21 +1424,15 @@ int etnaviv_gpu_submit(struct etnaviv_gp
etnaviv_sync_point_queue(gpu, event[2]);
}
- cmdbuf->fence = fence;
- list_add_tail(&cmdbuf->node, &gpu->active_cmd_list);
+ list_add_tail(&submit->node, &gpu->active_submit_list);
/* We're committed to adding this command buffer, hold a PM reference */
pm_runtime_get_noresume(gpu->dev);
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
-
- /* Each cmdbuf takes a refcount on the mapping */
- etnaviv_gem_mapping_reference(submit->bos[i].mapping);
- cmdbuf->bo_map[i] = submit->bos[i].mapping;
atomic_inc(&etnaviv_obj->gpu_active);
}
- cmdbuf->nr_bos = submit->nr_bos;
hangcheck_timer_reset(gpu);
ret = 0;
@@ -1625,7 +1611,7 @@ int etnaviv_gpu_wait_idle(struct etnaviv
static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu)
{
- if (gpu->buffer) {
+ if (gpu->buffer.suballoc) {
/* Replace the last WAIT with END */
mutex_lock(&gpu->lock);
etnaviv_buffer_end(gpu);
@@ -1742,7 +1728,7 @@ static int etnaviv_gpu_bind(struct devic
gpu->fence_context = dma_fence_context_alloc(1);
spin_lock_init(&gpu->fence_spinlock);
- INIT_LIST_HEAD(&gpu->active_cmd_list);
+ INIT_LIST_HEAD(&gpu->active_submit_list);
INIT_WORK(&gpu->retire_work, retire_worker);
INIT_WORK(&gpu->sync_point_work, sync_point_worker);
INIT_WORK(&gpu->recover_work, recover_worker);
@@ -1777,10 +1763,8 @@ static void etnaviv_gpu_unbind(struct de
etnaviv_gpu_hw_suspend(gpu);
#endif
- if (gpu->buffer) {
- etnaviv_cmdbuf_free(gpu->buffer);
- gpu->buffer = NULL;
- }
+ if (gpu->buffer.suballoc)
+ etnaviv_cmdbuf_free(&gpu->buffer);
if (gpu->cmdbuf_suballoc) {
etnaviv_cmdbuf_suballoc_destroy(gpu->cmdbuf_suballoc);
@@ -1918,7 +1902,7 @@ static int etnaviv_gpu_rpm_resume(struct
return ret;
/* Re-initialise the basic hardware state */
- if (gpu->drm && gpu->buffer) {
+ if (gpu->drm && gpu->buffer.suballoc) {
ret = etnaviv_gpu_hw_resume(gpu);
if (ret) {
etnaviv_gpu_clk_disable(gpu);
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -20,6 +20,7 @@
#include <linux/clk.h>
#include <linux/regulator/consumer.h>
+#include "etnaviv_cmdbuf.h"
#include "etnaviv_drv.h"
struct etnaviv_gem_submit;
@@ -109,7 +110,7 @@ struct etnaviv_gpu {
struct workqueue_struct *wq;
/* 'ring'-buffer: */
- struct etnaviv_cmdbuf *buffer;
+ struct etnaviv_cmdbuf buffer;
int exec_state;
/* bus base address of memory */
@@ -122,7 +123,7 @@ struct etnaviv_gpu {
spinlock_t event_spinlock;
/* list of currently in-flight command buffers */
- struct list_head active_cmd_list;
+ struct list_head active_submit_list;
u32 idle_mask;
@@ -202,7 +203,7 @@ int etnaviv_gpu_wait_fence_interruptible
int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
struct etnaviv_gem_object *etnaviv_obj, struct timespec *timeout);
int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
- struct etnaviv_gem_submit *submit, struct etnaviv_cmdbuf *cmdbuf);
+ struct etnaviv_gem_submit *submit);
int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms);
--- a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
@@ -229,7 +229,7 @@ void etnaviv_iommuv2_restore(struct etna
prefetch = etnaviv_buffer_config_mmuv2(gpu,
(u32)etnaviv_domain->mtlb_dma,
(u32)etnaviv_domain->base.bad_page_dma);
- etnaviv_gpu_start_fe(gpu, (u32)etnaviv_cmdbuf_get_pa(gpu->buffer),
+ etnaviv_gpu_start_fe(gpu, (u32)etnaviv_cmdbuf_get_pa(&gpu->buffer),
prefetch);
etnaviv_gpu_wait_idle(gpu, 100);