[PATCH AUTOSEL 6.1 21/24] drm/amdgpu: add mes resume when do gfx post soft reset

[Sasha Levin]

From: Tong Liu01 <tong.li...@amd.com>

[ Upstream commit 4eb0b49a0ad3e004a6a65b84efe37bc7e66d560f ]

[why]
when gfx do soft reset, mes will also do reset, if mes is not
resumed when do recover from soft reset, mes is unable to respond
in later sequence

[how]
resume mes when do gfx post soft reset

Signed-off-by: Tong Liu01 <tong.li...@amd.com>
Acked-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 90e739d9aeee7..7a13129842602 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -4625,6 +4625,14 @@ static bool gfx_v11_0_check_soft_reset(void *handle)
        return false;
 }
 
+static int gfx_v11_0_post_soft_reset(void *handle)
+{
+       /**
+        * GFX soft reset will impact MES, need resume MES when do GFX soft 
reset
+        */
+       return amdgpu_mes_resume((struct amdgpu_device *)handle);
+}
+
 static uint64_t gfx_v11_0_get_gpu_clock_counter(struct amdgpu_device *adev)
 {
        uint64_t clock;
@@ -6068,6 +6076,7 @@ static const struct amd_ip_funcs gfx_v11_0_ip_funcs = {
        .wait_for_idle = gfx_v11_0_wait_for_idle,
        .soft_reset = gfx_v11_0_soft_reset,
        .check_soft_reset = gfx_v11_0_check_soft_reset,
+       .post_soft_reset = gfx_v11_0_post_soft_reset,
        .set_clockgating_state = gfx_v11_0_set_clockgating_state,
        .set_powergating_state = gfx_v11_0_set_powergating_state,
        .get_clockgating_state = gfx_v11_0_get_clockgating_state,
-- 
2.39.2