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drm/amdgpu/gfx10: Enable bad opcode interrupt

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For the bad opcode case, it will cause CP/ME hang.
The firmware will prevent the ME side from hanging by raising a bad opcode interrupt.
And the driver needs to perform a vmid reset when receiving the interrupt.

v2: update irq naming (drop priv) (Alex)

Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jesse Zhang 2024-07-12 18:14:52 -04:00 committed by Alex Deucher
parent a790902237
commit bc6c2a6f64
1 changed files with 74 additions and 0 deletions
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74
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
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@ -4740,6 +4740,13 @@ static int gfx_v10_0_sw_init(void *handle)
if (r)
return r;
/* Bad opcode Event */
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_GRBM_CP,
GFX_10_1__SRCID__CP_BAD_OPCODE_ERROR,
&adev->gfx.bad_op_irq);
if (r)
return r;
/* Privileged reg */
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_GRBM_CP, GFX_10_1__SRCID__CP_PRIV_REG_FAULT,
&adev->gfx.priv_reg_irq);
@ -7416,6 +7423,7 @@ static int gfx_v10_0_hw_fini(void *handle)
amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0);
amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0);
amdgpu_irq_put(adev, &adev->gfx.bad_op_irq, 0);
/* WA added for Vangogh asic fixing the SMU suspend failure
* It needs to set power gating again during gfxoff control
@ -7726,6 +7734,10 @@ static int gfx_v10_0_late_init(void *handle)
if (r)
return r;
r = amdgpu_irq_get(adev, &adev->gfx.bad_op_irq, 0);
if (r)
return r;
return 0;
}
@ -9162,6 +9174,51 @@ static int gfx_v10_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
return 0;
}
static int gfx_v10_0_set_bad_op_fault_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 cp_int_cntl_reg, cp_int_cntl;
int i, j;
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
case AMDGPU_IRQ_STATE_ENABLE:
for (i = 0; i < adev->gfx.me.num_me; i++) {
for (j = 0; j < adev->gfx.me.num_pipe_per_me; j++) {
cp_int_cntl_reg = gfx_v10_0_get_cpg_int_cntl(adev, i, j);
if (cp_int_cntl_reg) {
cp_int_cntl = RREG32_SOC15_IP(GC, cp_int_cntl_reg);
cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
OPCODE_ERROR_INT_ENABLE,
state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
WREG32_SOC15_IP(GC, cp_int_cntl_reg, cp_int_cntl);
}
}
}
for (i = 0; i < adev->gfx.mec.num_mec; i++) {
for (j = 0; j < adev->gfx.mec.num_pipe_per_mec; j++) {
/* MECs start at 1 */
cp_int_cntl_reg = gfx_v10_0_get_cpc_int_cntl(adev, i + 1, j);
if (cp_int_cntl_reg) {
cp_int_cntl = RREG32_SOC15_IP(GC, cp_int_cntl_reg);
cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_ME1_PIPE0_INT_CNTL,
OPCODE_ERROR_INT_ENABLE,
state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
WREG32_SOC15_IP(GC, cp_int_cntl_reg, cp_int_cntl);
}
}
}
break;
default:
break;
}
return 0;
}
static int gfx_v10_0_set_priv_inst_fault_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned int type,
@ -9237,6 +9294,15 @@ static int gfx_v10_0_priv_reg_irq(struct amdgpu_device *adev,
return 0;
}
static int gfx_v10_0_bad_op_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
DRM_ERROR("Illegal opcode in command stream \n");
gfx_v10_0_handle_priv_fault(adev, entry);
return 0;
}
static int gfx_v10_0_priv_inst_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
@ -9624,6 +9690,11 @@ static const struct amdgpu_irq_src_funcs gfx_v10_0_priv_reg_irq_funcs = {
.process = gfx_v10_0_priv_reg_irq,
};
static const struct amdgpu_irq_src_funcs gfx_v10_0_bad_op_irq_funcs = {
.set = gfx_v10_0_set_bad_op_fault_state,
.process = gfx_v10_0_bad_op_irq,
};
static const struct amdgpu_irq_src_funcs gfx_v10_0_priv_inst_irq_funcs = {
.set = gfx_v10_0_set_priv_inst_fault_state,
.process = gfx_v10_0_priv_inst_irq,
@ -9645,6 +9716,9 @@ static void gfx_v10_0_set_irq_funcs(struct amdgpu_device *adev)
adev->gfx.priv_reg_irq.num_types = 1;
adev->gfx.priv_reg_irq.funcs = &gfx_v10_0_priv_reg_irq_funcs;
adev->gfx.bad_op_irq.num_types = 1;
adev->gfx.bad_op_irq.funcs = &gfx_v10_0_bad_op_irq_funcs;
adev->gfx.priv_inst_irq.num_types = 1;
adev->gfx.priv_inst_irq.funcs = &gfx_v10_0_priv_inst_irq_funcs;
}