Dear Mohammad, dear Tao,
Tao, it’s hard to find your reply in the quote, as the message is not
quoted correctly (> prepended). Is it possible to use a different email
client?
Am 28.03.22 um 09:43 schrieb Zhou1, Tao:
-----Original Message-----
From: Ziya, Mohammad zafar <Mohammadzafar.Ziya@xxxxxxx>
Sent: Monday, March 28, 2022 2:25 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Lazar, Lijo <Lijo.Lazar@xxxxxxx>; Zhou1, Tao <Tao.Zhou1@xxxxxxx>; Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Ziya, Mohammad zafar <Mohammadzafar.Ziya@xxxxxxx>
Subject: [PATCH v4 5/6] drm/amdgpu/vcn: VCN ras error query support
RAS error query support addition for VCN 2.6
V2: removed unused option and corrected comment format Moved the register definition under header file
Please wrap lines after 75 characters. (`scripts/checkpatch.pl` should
have warned you about that).
V3: poison query status check added.
Removed error query interface
V4: MMSCH poison check option removed, return true/false refactored.
Signed-off-by: Mohammad Zafar Ziya <Mohammadzafar.ziya@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h | 1 +
drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c | 71 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/vcn_v2_5.h | 6 +++
3 files changed, 78 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
index 1e1a3b736859..606df8869b89 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
@@ -508,6 +508,7 @@ struct amdgpu_ras_block_hw_ops {
void (*query_ras_error_address)(struct amdgpu_device *adev, void *ras_error_status);
void (*reset_ras_error_count)(struct amdgpu_device *adev);
void (*reset_ras_error_status)(struct amdgpu_device *adev);
+ bool (*query_poison_status)(struct amdgpu_device *adev);
};
/* work flow
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
index 1869bae4104b..3988fc647741 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
@@ -31,6 +31,7 @@
#include "soc15d.h"
#include "vcn_v2_0.h"
#include "mmsch_v1_0.h"
+#include "vcn_v2_5.h"
#include "vcn/vcn_2_5_offset.h"
#include "vcn/vcn_2_5_sh_mask.h"
@@ -59,6 +60,7 @@ static int vcn_v2_5_set_powergating_state(void *handle, static int vcn_v2_5_pause_dpg_mode(struct amdgpu_device *adev,
int inst_idx, struct dpg_pause_state *new_state); static int vcn_v2_5_sriov_start(struct amdgpu_device *adev);
+static void vcn_v2_5_set_ras_funcs(struct amdgpu_device *adev);
static int amdgpu_ih_clientid_vcns[] = {
SOC15_IH_CLIENTID_VCN,
@@ -100,6 +102,7 @@ static int vcn_v2_5_early_init(void *handle)
vcn_v2_5_set_dec_ring_funcs(adev);
vcn_v2_5_set_enc_ring_funcs(adev);
vcn_v2_5_set_irq_funcs(adev);
+ vcn_v2_5_set_ras_funcs(adev);
return 0;
}
@@ -1930,3 +1933,71 @@ const struct amdgpu_ip_block_version vcn_v2_6_ip_block =
.rev = 0,
.funcs = &vcn_v2_6_ip_funcs,
};
+
+static uint32_t vcn_v2_6_query_poison_by_instance(struct amdgpu_device *adev,
+ uint32_t instance, uint32_t sub_block) {
+ uint32_t poison_stat = 0, reg_value = 0;
+
+ switch (sub_block) {
+ case AMDGPU_VCN_V2_6_VCPU_VCODEC:
+ reg_value = RREG32_SOC15(VCN, instance, mmUVD_RAS_VCPU_VCODEC_STATUS);
+ poison_stat = REG_GET_FIELD(reg_value, UVD_RAS_VCPU_VCODEC_STATUS, POISONED_PF);
+ break;
+ default:
+ break;
+ };
+
+ if (poison_stat)
+ dev_info(adev->dev, "Poison detected in VCN%d, sub_block%d\n",
+ instance, sub_block);
What should a user do with that information? Faulty hardware, …?
+
+ return poison_stat;
+}
+
+static bool vcn_v2_6_query_poison_status(struct amdgpu_device *adev) {
+ uint32_t inst, sub;
+ uint32_t poison_stat = 0;
+
+ for (inst = 0; inst < adev->vcn.num_vcn_inst; inst++)
+ for (sub = 0; sub < AMDGPU_VCN_V2_6_MAX_SUB_BLOCK; sub++)
+ poison_stat +=
+ vcn_v2_6_query_poison_by_instance(adev, inst, sub);
+
+ return poison_stat ? true : false;
[Tao] just want to confirm the logic, if the POISONED_PF of one instance is 1 and another is 0, the poison_stat is true, correct?
Can we add a print message for this case? Same question to JPEG.
Is the `dev_info` message in `vcn_v2_6_query_poison_by_instance()` doing
what you want?
Also, instead of `poison_stat ? true : false;` a common pattern is
`!!poison_stat` I believe.
Kind regards,
Paul
+}
+
+const struct amdgpu_ras_block_hw_ops vcn_v2_6_ras_hw_ops = {
+ .query_poison_status = vcn_v2_6_query_poison_status, };
+
+static struct amdgpu_vcn_ras vcn_v2_6_ras = {
+ .ras_block = {
+ .hw_ops = &vcn_v2_6_ras_hw_ops,
+ },
+};
+
+static void vcn_v2_5_set_ras_funcs(struct amdgpu_device *adev) {
+ switch (adev->ip_versions[VCN_HWIP][0]) {
+ case IP_VERSION(2, 6, 0):
+ adev->vcn.ras = &vcn_v2_6_ras;
+ break;
+ default:
+ break;
+ }
+
+ if (adev->vcn.ras) {
+ amdgpu_ras_register_ras_block(adev, &adev->vcn.ras->ras_block);
+
+ strcpy(adev->vcn.ras->ras_block.ras_comm.name, "vcn");
+ adev->vcn.ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__VCN;
+ adev->vcn.ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__POISON;
+ adev->vcn.ras_if = &adev->vcn.ras->ras_block.ras_comm;
+
+ /* If don't define special ras_late_init function, use default ras_late_init */
+ if (!adev->vcn.ras->ras_block.ras_late_init)
+ adev->vcn.ras->ras_block.ras_late_init = amdgpu_ras_block_late_init;
+ }
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.h b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.h
index e72f799ed0fd..1c19af74e4fd 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.h
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.h
@@ -24,6 +24,12 @@
#ifndef __VCN_V2_5_H__
#define __VCN_V2_5_H__
+enum amdgpu_vcn_v2_6_sub_block {
+ AMDGPU_VCN_V2_6_VCPU_VCODEC = 0,
+
+ AMDGPU_VCN_V2_6_MAX_SUB_BLOCK,
+};
+
extern const struct amdgpu_ip_block_version vcn_v2_5_ip_block; extern const struct amdgpu_ip_block_version vcn_v2_6_ip_block;
--
2.25.1
