rlc_init() is part of sw_init() so it should not touch hardware.
Additionally, calling the rlc update_spm_vmid() callback
directly invokes a gfx on/off cycle which could result in
powergating being enabled before hw init is complete. Split
update_spm_vmid() into an internal implementation for local
use without gfxoff interaction and then the rlc callback
which includes gfxoff handling. lbpw_init also touches
hardware so mvoe that to rlc_resume as well.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 34 ++++++++++++---------------
1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index d654bdd2037c9..7d992e4730db1 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -762,6 +762,8 @@ static void gfx_v9_0_query_ras_error_count(struct amdgpu_device *adev,
static int gfx_v9_0_ras_error_inject(struct amdgpu_device *adev,
void *inject_if, uint32_t instance_mask);
static void gfx_v9_0_reset_ras_error_count(struct amdgpu_device *adev);
+static void gfx_v9_0_update_spm_vmid_internal(struct amdgpu_device *adev,
+ unsigned vmid);
static void gfx_v9_0_kiq_set_resources(struct amdgpu_ring *kiq_ring,
uint64_t queue_mask)
@@ -1669,22 +1671,6 @@ static int gfx_v9_0_rlc_init(struct amdgpu_device *adev)
return r;
}
- switch (adev->ip_versions[GC_HWIP][0]) {
- case IP_VERSION(9, 2, 2):
- case IP_VERSION(9, 1, 0):
- gfx_v9_0_init_lbpw(adev);
- break;
- case IP_VERSION(9, 4, 0):
- gfx_v9_4_init_lbpw(adev);
- break;
- default:
- break;
- }
-
- /* init spm vmid with 0xf */
- if (adev->gfx.rlc.funcs->update_spm_vmid)
- adev->gfx.rlc.funcs->update_spm_vmid(adev, 0xf);
-
return 0;
}
@@ -2944,12 +2930,14 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
switch (adev->ip_versions[GC_HWIP][0]) {
case IP_VERSION(9, 2, 2):
case IP_VERSION(9, 1, 0):
+ gfx_v9_0_init_lbpw(adev);
if (amdgpu_lbpw == 0)
gfx_v9_0_enable_lbpw(adev, false);
else
gfx_v9_0_enable_lbpw(adev, true);
break;
case IP_VERSION(9, 4, 0):
+ gfx_v9_4_init_lbpw(adev);
if (amdgpu_lbpw > 0)
gfx_v9_0_enable_lbpw(adev, true);
else
@@ -2959,6 +2947,8 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
break;
}
+ gfx_v9_0_update_spm_vmid_internal(adev, 0xf);
+
adev->gfx.rlc.funcs->start(adev);
return 0;
@@ -4883,12 +4873,11 @@ static int gfx_v9_0_update_gfx_clock_gating(struct amdgpu_device *adev,
return 0;
}
-static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
+static void gfx_v9_0_update_spm_vmid_internal(struct amdgpu_device *adev,
+ unsigned vmid)
{
u32 reg, data;
- amdgpu_gfx_off_ctrl(adev, false);
-
reg = SOC15_REG_OFFSET(GC, 0, mmRLC_SPM_MC_CNTL);
if (amdgpu_sriov_is_pp_one_vf(adev))
data = RREG32_NO_KIQ(reg);
@@ -4902,6 +4891,13 @@ static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
WREG32_SOC15_NO_KIQ(GC, 0, mmRLC_SPM_MC_CNTL, data);
else
WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);
+}
+
+static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
+{
+ amdgpu_gfx_off_ctrl(adev, false);
+
+ gfx_v9_0_update_spm_vmid_internal(adev, vmid);
amdgpu_gfx_off_ctrl(adev, true);
}
--
2.41.0
