[AMD Official Use Only - Internal Distribution Only]
Reviewed-by: Harish Kasiviswanathan <harish.kasiviswanat...@amd.com>
-----Original Message-----
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> On Behalf Of Jonathan Kim
Sent: Tuesday, September 8, 2020 9:06 AM
To: amd-gfx@lists.freedesktop.org
Cc: Kuehling, Felix <felix.kuehl...@amd.com>; Kim, Jonathan
<jonathan....@amd.com>
Subject: [PATCH 1/4] drm/amdgpu: stop resetting xgmi perfmons on disable
Disabling perf events does not specify reset in ABI so stop doing it in
hardware.
Signed-off-by: Jonathan Kim <jonathan....@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_df.h | 4 ++--
drivers/gpu/drm/amd/amdgpu/df_v3_6.c | 23 ++++++++++++++---------
2 files changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_df.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_df.h
index 61a26c15c8dd..373cdebe0e2f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_df.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_df.h
@@ -44,9 +44,9 @@ struct amdgpu_df_funcs {
void (*enable_ecc_force_par_wr_rmw)(struct amdgpu_device *adev,
bool enable);
int (*pmc_start)(struct amdgpu_device *adev, uint64_t config,
- int is_enable);
+ int is_add);
int (*pmc_stop)(struct amdgpu_device *adev, uint64_t config,
- int is_disable);
+ int is_remove);
void (*pmc_get_count)(struct amdgpu_device *adev, uint64_t config,
uint64_t *count);
uint64_t (*get_fica)(struct amdgpu_device *adev, uint32_t ficaa_val);
diff --git a/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
index 2eab808fffeb..7b89fd2aa44a 100644
--- a/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
+++ b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
@@ -455,7 +455,8 @@ static int df_v3_6_pmc_get_ctrl_settings(struct
amdgpu_device *adev,
uint32_t *lo_base_addr,
uint32_t *hi_base_addr,
uint32_t *lo_val,
- uint32_t *hi_val)
+ uint32_t *hi_val,
+ bool is_enable)
{
uint32_t eventsel, instance, unitmask;
@@ -477,7 +478,8 @@ static int df_v3_6_pmc_get_ctrl_settings(struct
amdgpu_device *adev,
instance_5432 = (instance >> 2) & 0xf;
instance_76 = (instance >> 6) & 0x3;
- *lo_val = (unitmask << 8) | (instance_10 << 6) | eventsel | (1 << 22);
+ *lo_val = (unitmask << 8) | (instance_10 << 6) | eventsel;
+ *lo_val = is_enable ? *lo_val | (1 << 22) : *lo_val & ~(1 << 22);
*hi_val = (instance_76 << 29) | instance_5432;
DRM_DEBUG_DRIVER("config=%llx addr=%08x:%08x val=%08x:%08x",
@@ -572,14 +574,14 @@ static void df_v3_6_reset_perfmon_cntr(struct
amdgpu_device *adev,
}
static int df_v3_6_pmc_start(struct amdgpu_device *adev, uint64_t config,
- int is_enable)
+ int is_add)
{
uint32_t lo_base_addr, hi_base_addr, lo_val, hi_val;
int err = 0, ret = 0;
switch (adev->asic_type) {
case CHIP_VEGA20:
- if (is_enable)
+ if (is_add)
return df_v3_6_pmc_add_cntr(adev, config);
df_v3_6_reset_perfmon_cntr(adev, config);
@@ -589,7 +591,8 @@ static int df_v3_6_pmc_start(struct amdgpu_device *adev,
uint64_t config,
&lo_base_addr,
&hi_base_addr,
&lo_val,
- &hi_val);
+ &hi_val,
+ true);
if (ret)
return ret;
@@ -612,7 +615,7 @@ static int df_v3_6_pmc_start(struct amdgpu_device *adev,
uint64_t config,
}
static int df_v3_6_pmc_stop(struct amdgpu_device *adev, uint64_t config,
- int is_disable)
+ int is_remove)
{
uint32_t lo_base_addr, hi_base_addr, lo_val, hi_val;
int ret = 0;
@@ -624,15 +627,17 @@ static int df_v3_6_pmc_stop(struct amdgpu_device *adev,
uint64_t config,
&lo_base_addr,
&hi_base_addr,
&lo_val,
- &hi_val);
+ &hi_val,
+ false);
if (ret)
return ret;
- df_v3_6_reset_perfmon_cntr(adev, config);
- if (is_disable)
+ if (is_remove) {
+ df_v3_6_reset_perfmon_cntr(adev, config);
df_v3_6_pmc_release_cntr(adev, config);
+ }
break;
default:
--
2.17.1
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