[PATCH] drm/amd/amdgpu: disable GFXOFF around debugfs access to MMIO
Tom St Denis
tom.stdenis at amd.com
Wed Feb 19 15:04:17 UTC 2020
Signed-off-by: Tom St Denis <tom.stdenis at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 7379910790c9..66f763300c96 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -169,6 +169,7 @@ static int amdgpu_debugfs_process_reg_op(bool read, struct file *f,
if (pm_pg_lock)
mutex_lock(&adev->pm.mutex);
+ amdgpu_gfx_off_ctrl(adev, false);
while (size) {
uint32_t value;
@@ -192,6 +193,8 @@ static int amdgpu_debugfs_process_reg_op(bool read, struct file *f,
}
end:
+ amdgpu_gfx_off_ctrl(adev, true);
+
if (use_bank) {
amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
mutex_unlock(&adev->grbm_idx_mutex);
--
2.24.1
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