<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> [AMD Official Use Only] <div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Reviewed-by: Kevin Wang <kevinyang.wang@amd.com></div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> </div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Best Regards,</div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Kevin</div> <hr tabindex="-1" style="display:inline-block; width:98%"> <div id="divRplyFwdMsg" dir="ltr">From: amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Lang Yu <lang.yu@amd.com> Sent: Wednesday, December 8, 2021 5:26 PM To: amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org> Cc: Deucher, Alexander <Alexander.Deucher@amd.com>; Yu, Lang <Lang.Yu@amd.com>; Lazar, Lijo <Lijo.Lazar@amd.com>; Huang, Ray <Ray.Huang@amd.com> Subject: [PATCH 2/2] drm/amdgpu: only hw fini SMU fisrt for ASICs need that <div> </div> </div> <div class="BodyFragment"> <div class="PlainText">We found some headaches on ASICs don't need that, so remove that for them. Suggested-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Lang Yu <lang.yu@amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 47 +++++++++++++++------- 1 file changed, 32 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 3c5afa45173c..b5b32a582c51 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2656,6 +2656,36 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev) return 0; } +/** + * amdgpu_device_smu_fini_early - smu hw_fini wrapper + * + * @adev: amdgpu_device pointer + * + * For ASICs need to disable SMC first + */ +static void amdgpu_device_smu_fini_early(struct amdgpu_device *adev) +{ + int i, r; + + if (adev->ip_versions[GC_HWIP][0] > IP_VERSION(9, 0, 0)) + return; + + for (i = 0; i < adev->num_ip_blocks; i++) { + if (!adev->ip_blocks[i].status.hw) + continue; + if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) { + r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev); + /* XXX handle errors */ + if (r) { + DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", + adev->ip_blocks[i].version->funcs->name, r); + } + adev->ip_blocks[i].status.hw = false; + break; + } + } +} + static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev) { int i, r; @@ -2676,21 +2706,8 @@ static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev) amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE); amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE); - /* need to disable SMC first */ - for (i = 0; i < adev->num_ip_blocks; i++) { - if (!adev->ip_blocks[i].status.hw) - continue; - if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) { - r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev); - /* XXX handle errors */ - if (r) { - DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", - adev->ip_blocks[i].version->funcs->name, r); - } - adev->ip_blocks[i].status.hw = false; - break; - } - } + /* Workaroud for ASICs need to disable SMC first */ + amdgpu_device_smu_fini_early(adev); for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.hw) -- 2.25.1 </div> </div> </div> </body> </html>