diff options
| author | Alex Sierra <alex.sierra@amd.com> | 2020-03-23 14:00:43 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-01 14:44:44 -0400 |
| commit | 9e94ff33861031cb3714f6484f67740c3b2da137 (patch) | |
| tree | 761f8469eda022f66d07617680c8fccbac1df66c /drivers/gpu/drm/amd/amdgpu/navi10_ih.c | |
| parent | 0ab176e69c8d82d43fea23c51498653a3a28f13e (diff) | |
drm/amdgpu: reroute VMC and UMD to IH ring 1 for oss v5
[Why]
Due Page faults can easily overwhelm the interrupt handler.
So to make sure that we never lose valuable interrupts on the primary ring
we re-route page faults to IH ring 1.
It also facilitates the recovery page process, since it's already
running from a process context.
This is valid for Arcturus and future Navi generation GPUs.
[How]
Setting IH_CLIENT_CFG_DATA for VMC and UMD IH clients.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/navi10_ih.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/navi10_ih.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c index 4ce42635787a..6fca5206833d 100644 --- a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c +++ b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c @@ -205,6 +205,24 @@ static uint32_t navi10_ih_doorbell_rptr(struct amdgpu_ih_ring *ih) return ih_doorbell_rtpr; } +static void navi10_ih_reroute_ih(struct amdgpu_device *adev) +{ + uint32_t tmp; + + /* Reroute to IH ring 1 for VMC */ + WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_INDEX, 0x12); + tmp = RREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA); + tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, CLIENT_TYPE, 1); + tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1); + WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA, tmp); + + /* Reroute IH ring 1 for UMC */ + WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_INDEX, 0x1B); + tmp = RREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA); + tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1); + WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA, tmp); +} + /** * navi10_ih_irq_init - init and enable the interrupt ring * @@ -243,6 +261,7 @@ static int navi10_ih_irq_init(struct amdgpu_device *adev) } else { WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl); } + navi10_ih_reroute_ih(adev); if (unlikely(adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT)) { if (ih->use_bus_addr) { |