Having DEFINE_SRCU() or DEFINE_STATIC_SRCU() in a loadable module
requires that the size of the reserved region be increased, which is
not something we really want to be doing. This commit therefore removes
the DEFINE_STATIC_SRCU() from drivers/gpu/drm/amd/amdkfd/kfd_process.c in
favor of defining kfd_processes_srcu as a simple srcu_struct, initializing
it in amdgpu_amdkfd_init(), and cleaning it up in amdgpu_amdkfd_fini().
Reported-by: kbuild test robot <l...@intel.com>
Signed-off-by: Paul E. McKenney <paul...@linux.ibm.com>
Tested-by: kbuild test robot <l...@intel.com>
Cc: Oded Gabbay <oded.gab...@gmail.com>
Cc: Alex Deucher <alexander.deuc...@amd.com>
Cc: "Christian König" <christian.koe...@amd.com
Cc: "David (ChunMing) Zhou" <david1.z...@amd.com>
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: Tejun Heo <t...@kernel.org>
Cc: <dri-de...@lists.freedesktop.org>
Cc: <amd-gfx@lists.freedesktop.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 5 +++++
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index fe1d7368c1e6..eadb20dee867 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -28,6 +28,8 @@
#include <linux/module.h>
#include <linux/dma-buf.h>
+extern struct srcu_struct kfd_processes_srcu;
+
static const unsigned int compute_vmid_bitmap = 0xFF00;
/* Total memory size in system memory and all GPU VRAM. Used to
@@ -40,6 +42,8 @@ int amdgpu_amdkfd_init(void)
struct sysinfo si;
int ret;
+ ret = init_srcu_struct(&kfd_processes_srcu);
+ WARN_ON(ret);
si_meminfo(&si);
amdgpu_amdkfd_total_mem_size = si.totalram - si.totalhigh;
amdgpu_amdkfd_total_mem_size *= si.mem_unit;
@@ -57,6 +61,7 @@ int amdgpu_amdkfd_init(void)
void amdgpu_amdkfd_fini(void)
{
kgd2kfd_exit();
+ cleanup_srcu_struct(&kfd_processes_srcu);
}
void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 4bdae78bab8e..98b694068b8a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -47,7 +47,7 @@ struct mm_struct;
DEFINE_HASHTABLE(kfd_processes_table, KFD_PROCESS_TABLE_SIZE);
static DEFINE_MUTEX(kfd_processes_mutex);
-DEFINE_SRCU(kfd_processes_srcu);
+struct srcu_struct kfd_processes_srcu;
/* For process termination handling */
static struct workqueue_struct *kfd_process_wq;
--
2.17.1
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