[PATCH] drm/amdgpu: remove the intterupt handling for the KIQ events
Shirish S
shirish.s at amd.com
Fri Oct 5 05:45:39 UTC 2018
[Why]
1. we never submit IBs to the KIQ
2. there seems to be ~500ms delay during amdgpu resume spent in KIQ,
hence, KIQ interrupts are not working correctly.
[How]
remove interrupt handling for KIQ.
Signed-off-by: Shirish S <shirish.s at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 59 ---------------------------
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 75 -----------------------------------
2 files changed, 134 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 2aeef2b..dc9d5bf 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -2048,11 +2048,6 @@ static int gfx_v8_0_sw_init(void *handle)
adev->gfx.mec.num_pipe_per_mec = 4;
adev->gfx.mec.num_queue_per_pipe = 8;
- /* KIQ event */
- r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_CP_INT_IB2, &adev->gfx.kiq.irq);
- if (r)
- return r;
-
/* EOP Event */
r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_CP_END_OF_PIPE, &adev->gfx.eop_irq);
if (r)
@@ -7025,52 +7020,6 @@ static int gfx_v8_0_sq_irq(struct amdgpu_device *adev,
return 0;
}
-static int gfx_v8_0_kiq_set_interrupt_state(struct amdgpu_device *adev,
- struct amdgpu_irq_src *src,
- unsigned int type,
- enum amdgpu_interrupt_state state)
-{
- struct amdgpu_ring *ring = &(adev->gfx.kiq.ring);
-
- switch (type) {
- case AMDGPU_CP_KIQ_IRQ_DRIVER0:
- WREG32_FIELD(CPC_INT_CNTL, GENERIC2_INT_ENABLE,
- state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
- if (ring->me == 1)
- WREG32_FIELD_OFFSET(CP_ME1_PIPE0_INT_CNTL,
- ring->pipe,
- GENERIC2_INT_ENABLE,
- state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
- else
- WREG32_FIELD_OFFSET(CP_ME2_PIPE0_INT_CNTL,
- ring->pipe,
- GENERIC2_INT_ENABLE,
- state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
- break;
- default:
- BUG(); /* kiq only support GENERIC2_INT now */
- break;
- }
- return 0;
-}
-
-static int gfx_v8_0_kiq_irq(struct amdgpu_device *adev,
- struct amdgpu_irq_src *source,
- struct amdgpu_iv_entry *entry)
-{
- u8 me_id, pipe_id, queue_id;
- struct amdgpu_ring *ring = &(adev->gfx.kiq.ring);
-
- me_id = (entry->ring_id & 0x0c) >> 2;
- pipe_id = (entry->ring_id & 0x03) >> 0;
- queue_id = (entry->ring_id & 0x70) >> 4;
- DRM_DEBUG("IH: CPC GENERIC2_INT, me:%d, pipe:%d, queue:%d\n",
- me_id, pipe_id, queue_id);
-
- amdgpu_fence_process(ring);
- return 0;
-}
-
static const struct amd_ip_funcs gfx_v8_0_ip_funcs = {
.name = "gfx_v8_0",
.early_init = gfx_v8_0_early_init,
@@ -7221,11 +7170,6 @@ static const struct amdgpu_irq_src_funcs gfx_v8_0_priv_inst_irq_funcs = {
.process = gfx_v8_0_priv_inst_irq,
};
-static const struct amdgpu_irq_src_funcs gfx_v8_0_kiq_irq_funcs = {
- .set = gfx_v8_0_kiq_set_interrupt_state,
- .process = gfx_v8_0_kiq_irq,
-};
-
static const struct amdgpu_irq_src_funcs gfx_v8_0_cp_ecc_error_irq_funcs = {
.set = gfx_v8_0_set_cp_ecc_int_state,
.process = gfx_v8_0_cp_ecc_error_irq,
@@ -7247,9 +7191,6 @@ static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev)
adev->gfx.priv_inst_irq.num_types = 1;
adev->gfx.priv_inst_irq.funcs = &gfx_v8_0_priv_inst_irq_funcs;
- adev->gfx.kiq.irq.num_types = AMDGPU_CP_KIQ_IRQ_LAST;
- adev->gfx.kiq.irq.funcs = &gfx_v8_0_kiq_irq_funcs;
-
adev->gfx.cp_ecc_error_irq.num_types = 1;
adev->gfx.cp_ecc_error_irq.funcs = &gfx_v8_0_cp_ecc_error_irq_funcs;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 7a6a814..edf23a5 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1711,11 +1711,6 @@ static int gfx_v9_0_sw_init(void *handle)
adev->gfx.mec.num_pipe_per_mec = 4;
adev->gfx.mec.num_queue_per_pipe = 8;
- /* KIQ event */
- r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_GRBM_CP, GFX_9_0__SRCID__CP_IB2_INTERRUPT_PKT, &adev->gfx.kiq.irq);
- if (r)
- return r;
-
/* EOP Event */
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_GRBM_CP, GFX_9_0__SRCID__CP_EOP_INTERRUPT, &adev->gfx.eop_irq);
if (r)
@@ -4716,68 +4711,6 @@ static int gfx_v9_0_priv_inst_irq(struct amdgpu_device *adev,
return 0;
}
-static int gfx_v9_0_kiq_set_interrupt_state(struct amdgpu_device *adev,
- struct amdgpu_irq_src *src,
- unsigned int type,
- enum amdgpu_interrupt_state state)
-{
- uint32_t tmp, target;
- struct amdgpu_ring *ring = &(adev->gfx.kiq.ring);
-
- if (ring->me == 1)
- target = SOC15_REG_OFFSET(GC, 0, mmCP_ME1_PIPE0_INT_CNTL);
- else
- target = SOC15_REG_OFFSET(GC, 0, mmCP_ME2_PIPE0_INT_CNTL);
- target += ring->pipe;
-
- switch (type) {
- case AMDGPU_CP_KIQ_IRQ_DRIVER0:
- if (state == AMDGPU_IRQ_STATE_DISABLE) {
- tmp = RREG32_SOC15(GC, 0, mmCPC_INT_CNTL);
- tmp = REG_SET_FIELD(tmp, CPC_INT_CNTL,
- GENERIC2_INT_ENABLE, 0);
- WREG32_SOC15(GC, 0, mmCPC_INT_CNTL, tmp);
-
- tmp = RREG32(target);
- tmp = REG_SET_FIELD(tmp, CP_ME2_PIPE0_INT_CNTL,
- GENERIC2_INT_ENABLE, 0);
- WREG32(target, tmp);
- } else {
- tmp = RREG32_SOC15(GC, 0, mmCPC_INT_CNTL);
- tmp = REG_SET_FIELD(tmp, CPC_INT_CNTL,
- GENERIC2_INT_ENABLE, 1);
- WREG32_SOC15(GC, 0, mmCPC_INT_CNTL, tmp);
-
- tmp = RREG32(target);
- tmp = REG_SET_FIELD(tmp, CP_ME2_PIPE0_INT_CNTL,
- GENERIC2_INT_ENABLE, 1);
- WREG32(target, tmp);
- }
- break;
- default:
- BUG(); /* kiq only support GENERIC2_INT now */
- break;
- }
- return 0;
-}
-
-static int gfx_v9_0_kiq_irq(struct amdgpu_device *adev,
- struct amdgpu_irq_src *source,
- struct amdgpu_iv_entry *entry)
-{
- u8 me_id, pipe_id, queue_id;
- struct amdgpu_ring *ring = &(adev->gfx.kiq.ring);
-
- me_id = (entry->ring_id & 0x0c) >> 2;
- pipe_id = (entry->ring_id & 0x03) >> 0;
- queue_id = (entry->ring_id & 0x70) >> 4;
- DRM_DEBUG("IH: CPC GENERIC2_INT, me:%d, pipe:%d, queue:%d\n",
- me_id, pipe_id, queue_id);
-
- amdgpu_fence_process(ring);
- return 0;
-}
-
static const struct amd_ip_funcs gfx_v9_0_ip_funcs = {
.name = "gfx_v9_0",
.early_init = gfx_v9_0_early_init,
@@ -4926,11 +4859,6 @@ static void gfx_v9_0_set_ring_funcs(struct amdgpu_device *adev)
adev->gfx.compute_ring[i].funcs = &gfx_v9_0_ring_funcs_compute;
}
-static const struct amdgpu_irq_src_funcs gfx_v9_0_kiq_irq_funcs = {
- .set = gfx_v9_0_kiq_set_interrupt_state,
- .process = gfx_v9_0_kiq_irq,
-};
-
static const struct amdgpu_irq_src_funcs gfx_v9_0_eop_irq_funcs = {
.set = gfx_v9_0_set_eop_interrupt_state,
.process = gfx_v9_0_eop_irq,
@@ -4956,9 +4884,6 @@ static void gfx_v9_0_set_irq_funcs(struct amdgpu_device *adev)
adev->gfx.priv_inst_irq.num_types = 1;
adev->gfx.priv_inst_irq.funcs = &gfx_v9_0_priv_inst_irq_funcs;
-
- adev->gfx.kiq.irq.num_types = AMDGPU_CP_KIQ_IRQ_LAST;
- adev->gfx.kiq.irq.funcs = &gfx_v9_0_kiq_irq_funcs;
}
static void gfx_v9_0_set_rlc_funcs(struct amdgpu_device *adev)
--
2.7.4
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