[AMD Official Use Only - AMD Internal Distribution Only] Reviewed-by: Emily Deng <[email protected]>
Emily Deng Best Wishes >-----Original Message----- >From: Li, Chong(Alan) <[email protected]> >Sent: Friday, November 7, 2025 3:08 PM >To: [email protected] >Cc: Deng, Emily <[email protected]>; Li, Chong(Alan) <[email protected]> >Subject: [PATCH] drm/amdgpu: reduce the full gpu access time in >amdgpu_device_init. > >[Why] >function "devm_memremap_pages" in function "kgd2kfd_init_zone_device", >sometimes cost too much time. > >[How] >move the function "kgd2kfd_init_zone_device" after release full gpu >access(amdgpu_virt_release_full_gpu). > >Signed-off-by: chong li <[email protected]> >Change-Id: I3eebd7272b8f0c85d08fec80acee67a2c9e59e52 >--- > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > >diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c >b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c >index 1e8725abcded..9aacf8fdb38a 100644 >--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c >+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c >@@ -3314,7 +3314,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device >*adev) > > /* Don't init kfd if whole hive need to be reset during init */ > if (adev->init_lvl->level != AMDGPU_INIT_LEVEL_MINIMAL_XGMI) { >- kgd2kfd_init_zone_device(adev); > amdgpu_amdkfd_device_init(adev); > } > >@@ -4929,6 +4928,11 @@ int amdgpu_device_init(struct amdgpu_device *adev, > > if (adev->init_lvl->level == AMDGPU_INIT_LEVEL_MINIMAL_XGMI) > amdgpu_xgmi_reset_on_init(adev); >+ >+ /* Don't init kfd if whole hive need to be reset during init */ >+ if (adev->init_lvl->level != AMDGPU_INIT_LEVEL_MINIMAL_XGMI) >+ kgd2kfd_init_zone_device(adev); >+ > /* > * Place those sysfs registering after `late_init`. As some of those > * operations performed in `late_init` might affect the sysfs >-- >2.48.1
