diff options
| author | Likun Gao <Likun.Gao@amd.com> | 2022-06-14 17:36:00 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-13 11:25:16 -0400 |
| commit | 58e969b60db0f5ca9abf0a8df28086efd601f38c (patch) | |
| tree | e958b886485fe67e5310ac697f8b72891e068b3e /drivers/gpu/drm/amd/amdgpu | |
| parent | c0ff84cb58faff9fdb8d955c6e1e07fd75d88c16 (diff) | |
drm/amdgpu: support SDMA soft recovery for sdma v6
Support SDMA soft reset for SDMA v6.
V3: use ib test to check soft reset.
V4: squash in unused variable fix (Alex)
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c | 51 |
1 files changed, 37 insertions, 14 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c index 8cfaed55b192..0a31ba3ce821 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c @@ -57,6 +57,7 @@ static void sdma_v6_0_set_ring_funcs(struct amdgpu_device *adev); static void sdma_v6_0_set_buffer_funcs(struct amdgpu_device *adev); static void sdma_v6_0_set_vm_pte_funcs(struct amdgpu_device *adev); static void sdma_v6_0_set_irq_funcs(struct amdgpu_device *adev); +static int sdma_v6_0_start(struct amdgpu_device *adev); static u32 sdma_v6_0_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset) { @@ -771,32 +772,54 @@ static int sdma_v6_0_load_microcode(struct amdgpu_device *adev) static int sdma_v6_0_soft_reset(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - u32 grbm_soft_reset; u32 tmp; int i; + sdma_v6_0_gfx_stop(adev); + for (i = 0; i < adev->sdma.num_instances; i++) { - grbm_soft_reset = REG_SET_FIELD(0, - GRBM_SOFT_RESET, SOFT_RESET_SDMA0, - 1); - grbm_soft_reset <<= i; + tmp = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_FREEZE)); + tmp |= SDMA0_FREEZE__FREEZE_MASK; + WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_FREEZE), tmp); + tmp = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL)); + tmp |= SDMA0_F32_CNTL__HALT_MASK; + tmp |= SDMA0_F32_CNTL__TH1_RESET_MASK; + WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL), tmp); - tmp = RREG32_SOC15(GC, 0, regGRBM_SOFT_RESET); - tmp |= grbm_soft_reset; - DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp); + WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_PREEMPT), 0); + + udelay(100); + + tmp = GRBM_SOFT_RESET__SOFT_RESET_SDMA0_MASK << i; WREG32_SOC15(GC, 0, regGRBM_SOFT_RESET, tmp); tmp = RREG32_SOC15(GC, 0, regGRBM_SOFT_RESET); - udelay(50); + udelay(100); - tmp &= ~grbm_soft_reset; - WREG32_SOC15(GC, 0, regGRBM_SOFT_RESET, tmp); + WREG32_SOC15(GC, 0, regGRBM_SOFT_RESET, 0); tmp = RREG32_SOC15(GC, 0, regGRBM_SOFT_RESET); - udelay(50); + udelay(100); } - return 0; + return sdma_v6_0_start(adev); +} + +static bool sdma_v6_0_check_soft_reset(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_ring *ring; + int i, r; + long tmo = msecs_to_jiffies(1000); + + for (i = 0; i < adev->sdma.num_instances; i++) { + ring = &adev->sdma.instance[i].ring; + r = amdgpu_ring_test_ib(ring, tmo); + if (r) + return true; + } + + return false; } /** @@ -830,7 +853,6 @@ static int sdma_v6_0_start(struct amdgpu_device *adev) msleep(1000); } - sdma_v6_0_soft_reset(adev); /* unhalt the MEs */ sdma_v6_0_enable(adev, true); /* enable sdma ring preemption */ @@ -1526,6 +1548,7 @@ const struct amd_ip_funcs sdma_v6_0_ip_funcs = { .is_idle = sdma_v6_0_is_idle, .wait_for_idle = sdma_v6_0_wait_for_idle, .soft_reset = sdma_v6_0_soft_reset, + .check_soft_reset = sdma_v6_0_check_soft_reset, .set_clockgating_state = sdma_v6_0_set_clockgating_state, .set_powergating_state = sdma_v6_0_set_powergating_state, .get_clockgating_state = sdma_v6_0_get_clockgating_state, |