/*
* Copyright 2018 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "amdgpu.h"
#include "df_v3_6.h"
#include "df/df_3_6_default.h"
#include "df/df_3_6_offset.h"
#include "df/df_3_6_sh_mask.h"
#define DF_3_6_SMN_REG_INST_DIST 0x8
#define DF_3_6_INST_CNT 8
/* Defined in global_features.h as FTI_PERFMON_VISIBLE */
#define DF_V3_6_MAX_COUNTERS 4
/* get flags from df perfmon config */
#define DF_V3_6_GET_EVENT(x) (x & 0xFFUL)
#define DF_V3_6_GET_INSTANCE(x) ((x >> 8) & 0xFFUL)
#define DF_V3_6_GET_UNITMASK(x) ((x >> 16) & 0xFFUL)
#define DF_V3_6_PERFMON_OVERFLOW 0xFFFFFFFFFFFFULL
static u32 df_v3_6_channel_number[] = {1, 2, 0, 4, 0, 8, 0,
16, 32, 0, 0, 0, 2, 4, 8};
static uint64_t df_v3_6_get_fica(struct amdgpu_device *adev,
uint32_t ficaa_val)
{
unsigned long flags, address, data;
uint32_t ficadl_val, ficadh_val;
address = adev->nbio.funcs->get_pcie_index_offset(adev);
data = adev->nbio.funcs->get_pcie_data_offset(adev);
spin_lock_irqsave(&adev->pcie_idx_lock, flags);
WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessAddress3);
WREG32(data, ficaa_val);
WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataLo3);
ficadl_val = RREG32(data);
WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataHi3);
ficadh_val = RREG32(data);
spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
return (((ficadh_val & 0xFFFFFFFFFFFFFFFF) << 32) | ficadl_val);
}
static void df_v3_6_set_fica(struct amdgpu_device *adev, uint32_t ficaa_val,
uint32_t ficadl_val, uint32_t ficadh_val)
{
unsigned long flags, address, data;
address = adev->nbio.funcs->get_pcie_index_offset(adev);
data = adev->nbio.funcs->get_pcie_data_offset(adev);
spin_lock_irqsave(&adev->pcie_idx_lock, flags);
WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessAddress3);
WREG32(data, ficaa_val);
WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataLo3);
WREG32(data, ficadl_val);
WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataHi3);
WREG32(data, ficadh_val);
spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
}
/*
* df_v3_6_perfmon_rreg - read perfmon lo and hi
*
* required to be atomic. no mmio method provided so subsequent reads for lo
* and hi require to preserve df finite state machine
*/
static void df_v3_6_perfmon_rreg(struct amdgpu_device *adev,
uint32_t lo_addr, uint32_t *lo_val,
uint32_t hi_addr, uint32_t *hi_val)
{
unsigned long flags, address, data;
address = adev->nbio.funcs->get_pcie_index_offset(adev);
data = adev->nbio.funcs->get_pcie_data_offset(adev);
spin_lock_irqsave(&adev->pcie_idx_lock, flags);
WREG32(address, lo_addr);
*lo_val = RREG32(data);
WREG32(address, hi_addr);
*hi_val = RREG32(data);
spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
}
/*
* df_v3_6_perfmon_wreg - write to perfmon lo and hi
*
* required to be atomic. no mmio method provided so subsequent reads after
* data writes cannot occur to preserve data fabrics finite state machine.
*/
static void df_v3_6_perfmon_wreg(struct amdgpu_device *adev, uint32_t lo_addr,
uint32_t lo_val, uint32_t hi_addr, uint32_t hi_val)
{
unsigned long flags, address, data;
address = adev->nbio.funcs->get_pcie_index_offset(adev);
data = adev->nbio.funcs->get_pcie_data_offset(adev);
spin_lock_irqsave(&adev->pcie_idx_lock, flags);
WREG32(address, lo_addr);
WREG32(data, lo_val);
WREG32(address, hi_addr);
WREG32(data, hi_val);
spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
}
/* same as perfmon_wreg but return status on write value check */
static int df_v3_6_perfmon_arm_with_status(struct amdgpu_device *adev,
uint32_t lo_addr, uint32_t lo_val,
uint32_t hi_addr, uint32_t hi_val)
{
unsigned long flags, address, data;
uint32_t lo_val_rb, hi_val_rb;
address = adev->nbio.funcs->get_pcie_index_offset(adev);
data = adev->nbio.funcs->get_pcie_data_offset(adev);
spin_lock_irqsave(&adev->pcie_idx_lock, flags);
WREG32(address, lo_addr);
WREG32(data, lo_val);
WREG32(address, hi_addr);
WREG32(data, hi_val);
WREG32(address, lo_addr);
lo_val_rb = RREG32(data);
WREG32(address, hi_addr);
hi_val_rb = RREG32(data);
spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
if (!(lo_val == lo_val_rb && hi_val == hi_val_rb))
return -EBUSY;
return 0;
}
/*
* retry arming counters every 100 usecs within 1 millisecond interval.
* if retry fails after time out, return error.
*/
#define ARM_RETRY_USEC_TIMEOUT 1000
#define ARM_RETRY_USEC_INTERVAL 100
static int df_v3_6_perfmon_arm_with_retry(struct amdgpu_device *adev,
uint32_t lo_addr, uint32_t lo_val,
uint32_t hi_addr, uint32_t hi_val)
{
int countdown = ARM_RETRY_USEC_TIMEOUT;
while (countdown) {
if (!df_v3_6_perfmon_arm_with_status(adev, lo_addr, lo_val,
hi_addr, hi_val))
break;
countdown -= ARM_RETRY_USEC_INTERVAL;
udelay(ARM_RETRY_USEC_INTERVAL);
}
return countdown > 0 ? 0 : -ETIME;
}
/* get the number of df counters available */
static ssize_t df_v3_6_get_df_cntr_avail(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct amdgpu_device *adev;
struct drm_device *ddev;
int i, count;
ddev = dev_get_drvdata(dev);
adev = drm_to_adev(ddev);
count = 0;
for (i = 0; i < DF_V3_6_MAX_COUNTERS; i++) {
if (adev->df_perfmon_config_assign_mask[i] == 0)
count++;
}
return sysfs_emit(buf, "%i\n", count);
}
/* device attr for available perfmon counters */
static DEVICE_ATTR(df_cntr_avail, S_IRUGO, df_v3_6_get_df_cntr_avail, NULL);
static void df_v3_6_query_hashes(struct amdgpu_device *adev)
{
u32 tmp;
adev->df.hash_status.hash_64k = false;
adev->df.hash_status.hash_2m = false;
adev->df.hash_status.hash_1g = false;
/* encoding for hash-enabled on Arcturus and Aldebaran */
if ((adev->asic_type == CHIP_ARCTURUS &&
adev->df.funcs->get_fb_channel_number(adev) == 0xe) ||
(adev->asic_type == CHIP_ALDEBARAN &&
adev->df.funcs->get_fb_channel_number(adev) == 0x1e)) {
tmp = RREG32_SOC15(DF, 0, mmDF_CS_UMC_AON0_DfGlobalCtrl);
adev->df.hash_status.hash_64k = REG_GET_FIELD(tmp,
DF_CS_UMC_AON0_DfGlobalCtrl,
GlbHashIntlvCtl64K);
adev->df.hash_status.hash_2m = REG_GET_FIELD(tmp,
DF_CS_UMC_AON0_DfGlobalCtrl,
GlbHashIntlvCtl2M);
adev->df.hash_status.hash_1g = REG_GET_FIELD(tmp,
DF_CS_UMC_AON0_DfGlobalCtrl,
GlbHashIntlvCtl1G);
}
}
/* init perfmons */
static void df_v3_6_sw_init(struct amdgpu_device *adev)
{
int i, ret;
ret = device_create_file(adev->dev, &dev_attr_df_cntr_avail);
if (ret)
DRM_ERROR("failed to create file for available df counters\n");
for (i = 0; i < AMDGPU_MAX_DF_PERFMONS; i++)
adev->df_perfmon_config_assign_mask[i] = 0;
df_v3_6_query_hashes(adev);
}
static void df_v3_6_sw_fini(struct amdgpu_device *adev)
{
device_remove_file(adev->dev, &dev_attr_df_cntr_avail);
}
static void df_v3_6_enable_broadcast_mode(struct amdgpu_device *adev,
bool enable)
{
u32 tmp;
if (enable) {
tmp = RREG32_SOC15(DF, 0, mmFabricConfigAccessControl);
tmp &= ~FabricConfigAccessControl__CfgRegInstAccEn_MASK;
WREG32_SOC15(DF, 0, mmFabricConfigAccessControl, tmp);
} else
WREG32_SOC15(DF, 0, mmFabricConfigAccessControl,
mmFabricConfigAccessControl_DEFAULT);
}
static u32 df_v3_6_get_fb_channel_number(struct amdgpu_device *adev)
{
u32 tmp;
if (adev->asic_type == CHIP_ALDEBARAN) {
tmp = RREG32_SOC15(DF, 0, mmDF_GCM_AON0_DramMegaBaseAddress0);
tmp &=
ALDEBARAN_DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan_MASK;
} else {
tmp = RREG32_SOC15(DF, 0, mmDF_CS_UMC_AON0_DramBaseAddress0);
tmp &= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan_MASK;
}
tmp >>= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan__SHIFT;
return tmp;
}
static u32 df_v3_6_get_hbm_channel_number(struct amdgpu_device *adev)
{
int fb_channel_number;
fb_channel_number = adev->df.funcs->get_fb_channel_number(adev);
if (fb_channel_number >= ARRAY_SIZE(df_v3_6_channel_number))
fb_channel_number = 0;
return df_v3_6_channel_number[fb_channel_number];
}
static void df_v3_6_update_medium_grain_clock_gating(struct amdgpu_device *adev,
bool enable)
{
u32 tmp;
if (adev->cg_flags & AMD_CG_SUPPORT_DF_MGCG) {
/* Put DF on broadcast mode */
adev->df.funcs->enable_broadcast_mode(adev, true);
if (enable) {
tmp = RREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater);
tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
tmp |= DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY;
WREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater, tmp);
} else {
tmp = RREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater);
tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
tmp |= DF_V3_6_MGCG_DISABLE;
WREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater, tmp);
}
/* Exit broadcast mode */
adev->df.funcs->enable_broadcast_mode(adev, false);
}
}
static void df_v3_6_get_clockgating_state(struct amdgpu_device *adev,
u64 *flags)
{
u32 tmp;
/* AMD_CG_SUPPORT_DF_MGCG */
tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
if (tmp & DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY)
*flags |= AMD_CG_SUPPORT_DF_MGCG;
}
/* get assigned df perfmon ctr as int */
static bool df_v3_6_pmc_has_counter(struct amdgpu_device *adev,
uint64_t config,
int counter_idx)
{
return ((config & 0x0FFFFFFUL) ==
adev->df_perfmon_config_assign_mask[counter_idx]);
}
/* get address based on counter assignment */
static void df_v3_6_pmc_get_addr(struct amdgpu_device *adev,
uint64_t config,
int counter_idx,
int is_ctrl,
uint32_t *lo_base_addr,
uint32_t *hi_base_addr)
{
if (!df_v3_6_pmc_has_counter(adev, config, counter_idx))
return;
switch (counter_idx) {
case 0:
*lo_base_addr = is_ctrl ? smnPerfMonCtlLo4 : smnPerfMonCtrLo4;
*hi_base_addr = is_ctrl ? smnPerfMonCtlHi4 : smnPerfMonCtrHi4;
break;
case 1:
*lo_base_addr = is_ctrl ? smnPerfMonCtlLo5 : smnPerfMonCtrLo5;
*hi_base_addr = is_ctrl ? smnPerfMonCtlHi5 : smnPerfMonCtrHi5;
break;
case 2:
*lo_base_addr = is_ctrl ? smnPerfMonCtlLo6 : smnPerfMonCtrLo6;
*hi_base_addr = is_ctrl ? smnPerfMonCtlHi6 : smnPerfMonCtrHi6;
break;
case 3:
*lo_base_addr = is_ctrl ? smnPerfMonCtlLo7 : smnPerfMonCtrLo7;
*hi_base_addr = is_ctrl ? smnPerfMonCtlHi7 : smnPerfMonCtrHi7;
break;
}
}
/* get read counter address */
static void df_v3_6_pmc_get_read_settings(struct amdgpu_device *adev,
uint64_t config,
int counter_idx,
uint32_t *lo_base_addr,
uint32_t *hi_base_addr)
{
df_v3_6_pmc_get_addr(adev, config, counter_idx, 0, lo_base_addr,
hi_base_addr);
}
/* get control counter settings i.e. address and values to set */
static int df_v3_6_pmc_get_ctrl_settings(struct amdgpu_device *adev,
uint64_t config,
int counter_idx,
uint32_t *lo_base_addr,
uint32_t *hi_base_addr,
uint32_t *lo_val,
uint32_t *hi_val,
bool is_enable)
{
uint32_t eventsel, instance, unitmask;
uint32_t instance_10, instance_5432, instance_76;
df_v3_6_pmc_get_addr(adev, config, counter_idx, 1, lo_base_addr,
hi_base_addr);
if ((*lo_base_addr == 0) || (*hi_base_addr == 0)) {
DRM_ERROR("[DF PMC] addressing not retrieved! Lo: %x, Hi: %x",
*lo_base_addr, *hi_base_addr);
return -ENXIO;
}
eventsel = DF_V3_6_GET_EVENT(config) & 0x3f;
unitmask = DF_V3_6_GET_UNITMASK(config) & 0xf;
instance = DF_V3_6_GET_INSTANCE(config);
instance_10 = instance & 0x3;
instance_5432 = (instance >> 2) & 0xf;
instance_76 = (instance >> 6) & 0x3;
*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",
config, *lo_base_addr, *hi_base_addr, *lo_val, *hi_val);
return 0;
}
/* add df performance counters for read */
static int df_v3_6_pmc_add_cntr(struct amdgpu_device *adev,
uint64_t config)
{
int i;
for (i = 0; i < DF_V3_6_MAX_COUNTERS; i++) {
if (adev->df_perfmon_config_assign_mask[i] == 0U) {
adev->df_perfmon_config_assign_mask[i] =
config & 0x0FFFFFFUL;
return i;
}
}
return -ENOSPC;
}
#define DEFERRED_ARM_MASK (1 << 31)
static int df_v3_6_pmc_set_deferred(struct amdgpu_device *adev,
uint64_t config, int counter_idx,
bool is_deferred)
{
if (!df_v3_6_pmc_has_counter(adev, config, counter_idx))
return -EINVAL;
if (is_deferred)
adev->df_perfmon_config_assign_mask[counter_idx] |=
DEFERRED_ARM_MASK;
else
adev->df_perfmon_config_assign_mask[counter_idx] &=
~DEFERRED_ARM_MASK;
return 0;
}
static bool df_v3_6_pmc_is_deferred(struct amdgpu_device *adev,
uint64_t config,
int counter_idx)
{
return (df_v3_6_pmc_has_counter(adev, config, counter_idx) &&
(adev->df_perfmon_config_assign_mask[counter_idx]
& DEFERRED_ARM_MASK));
}
/* release performance counter */
static void df_v3_6_pmc_release_cntr(struct amdgpu_device *adev,
uint64_t config,
int counter_idx)
{
if (df_v3_6_pmc_has_counter(adev, config, counter_idx))
adev->df_perfmon_config_assign_mask[counter_idx] = 0ULL;
}
static void df_v3_6_reset_perfmon_cntr(struct amdgpu_device *adev,
uint64_t config,
int counter_idx)
{
uint32_t lo_base_addr = 0, hi_base_addr = 0;
df_v3_6_pmc_get_read_settings(adev, config, counter_idx, &lo_base_addr,
&hi_base_addr);
if ((lo_base_addr == 0) || (hi_base_addr == 0))
return;
df_v3_6_perfmon_wreg(adev, lo_base_addr, 0, hi_base_addr, 0);
}
/* return available counter if is_add == 1 otherwise return error status. */
static int df_v3_6_pmc_start(struct amdgpu_device *adev, uint64_t config,
int counter_idx, 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:
case CHIP_ARCTURUS:
if (is_add)
return df_v3_6_pmc_add_cntr(adev, config);
ret = df_v3_6_pmc_get_ctrl_settings(adev,
config,
counter_idx,
&lo_base_addr,
&hi_base_addr,
&lo_val,
&hi_val,
true);
if (ret)
return ret;
err = df_v3_6_perfmon_arm_with_retry(adev,
lo_base_addr,
lo_val,
hi_base_addr,
hi_val);
if (err)
ret = df_v3_6_pmc_set_deferred(adev, config,
counter_idx, true);
break;
default:
break;
}
return ret;
}
static int df_v3_6_pmc_stop(struct amdgpu_device *adev, uint64_t config,
int counter_idx, int is_remove)
{
uint32_t lo_base_addr, hi_base_addr, lo_val, hi_val;
int ret = 0;
switch (adev->asic_type) {
case CHIP_VEGA20:
case CHIP_ARCTURUS:
ret = df_v3_6_pmc_get_ctrl_settings(adev,
config,
counter_idx,
&lo_base_addr,
&hi_base_addr,
&lo_val,
&hi_val,
false);
if (ret)
return ret;
df_v3_6_perfmon_wreg(adev, lo_base_addr, lo_val,
hi_base_addr, hi_val);
if (is_remove) {
df_v3_6_reset_perfmon_cntr(adev, config, counter_idx);
df_v3_6_pmc_release_cntr(adev, config, counter_idx);
}
break;
default:
break;
}
return ret;
}
static void df_v3_6_pmc_get_count(struct amdgpu_device *adev,
uint64_t config,
int counter_idx,
uint64_t *count)
{
uint32_t lo_base_addr = 0, hi_base_addr = 0, lo_val = 0, hi_val = 0;
*count = 0;
switch (adev->asic_type) {
case CHIP_VEGA20:
case CHIP_ARCTURUS:
df_v3_6_pmc_get_read_settings(adev, config, counter_idx,
&lo_base_addr, &hi_base_addr);
if ((lo_base_addr == 0) || (hi_base_addr == 0))
return;
/* rearm the counter or throw away count value on failure */
if (df_v3_6_pmc_is_deferred(adev, config, counter_idx)) {
int rearm_err = df_v3_6_perfmon_arm_with_status(adev,
lo_base_addr, lo_val,
hi_base_addr, hi_val);
if (rearm_err)
return;
df_v3_6_pmc_set_deferred(adev, config, counter_idx,
false);
}
df_v3_6_perfmon_rreg(adev, lo_base_addr, &lo_val,
hi_base_addr, &hi_val);
*count = ((hi_val | 0ULL) << 32) | (lo_val | 0ULL);
if (*count >= DF_V3_6_PERFMON_OVERFLOW)
*count = 0;
DRM_DEBUG_DRIVER("config=%llx addr=%08x:%08x val=%08x:%08x",
config, lo_base_addr, hi_base_addr, lo_val, hi_val);
break;
default:
break;
}
}
static bool df_v3_6_query_ras_poison_mode(struct amdgpu_device *adev)
{
uint32_t hw_assert_msklo, hw_assert_mskhi;
uint32_t v0, v1, v28, v31;
hw_assert_msklo = RREG32_SOC15(DF, 0,
mmDF_CS_UMC_AON0_HardwareAssertMaskLow);
hw_assert_mskhi = RREG32_SOC15(DF, 0,
mmDF_NCS_PG0_HardwareAssertMaskHigh);
v0 = REG_GET_FIELD(hw_assert_msklo,
DF_CS_UMC_AON0_HardwareAssertMaskLow, HWAssertMsk0);
v1 = REG_GET_FIELD(hw_assert_msklo,
DF_CS_UMC_AON0_HardwareAssertMaskLow, HWAssertMsk1);
v28 = REG_GET_FIELD(hw_assert_mskhi,
DF_NCS_PG0_HardwareAssertMaskHigh, HWAssertMsk28);
v31 = REG_GET_FIELD(hw_assert_mskhi,
DF_NCS_PG0_HardwareAssertMaskHigh, HWAssertMsk31);
if (v0 && v1 && v28 && v31)
return true;
else if (!v0 && !v1 && !v28 && !v31)
return false;
else {
dev_warn(adev->dev, "DF poison setting is inconsistent(%d:%d:%d:%d)!\n",
v0, v1, v28, v31);
return false;
}
}
const struct amdgpu_df_funcs df_v3_6_funcs = {
.sw_init = df_v3_6_sw_init,
.sw_fini = df_v3_6_sw_fini,
.enable_broadcast_mode = df_v3_6_enable_broadcast_mode,
.get_fb_channel_number = df_v3_6_get_fb_channel_number,
.get_hbm_channel_number = df_v3_6_get_hbm_channel_number,
.update_medium_grain_clock_gating =
df_v3_6_update_medium_grain_clock_gating,
.get_clockgating_state = df_v3_6_get_clockgating_state,
.pmc_start = df_v3_6_pmc_start,
.pmc_stop = df_v3_6_pmc_stop,
.pmc_get_count = df_v3_6_pmc_get_count,
.get_fica = df_v3_6_get_fica,
.set_fica = df_v3_6_set_fica,
.query_ras_poison_mode = df_v3_6_query_ras_poison_mode,
};
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