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[amd] vega10: SMU feature disable + gfx reset + BACO seems to be the secret sauce

This commit is contained in:
Adam Madsen 2020-11-13 17:34:53 -06:00
parent c18730a60d
commit f20d8b70bc
1 changed files with 94 additions and 4 deletions
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92
src/amd/vega10.c
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@ -25,7 +25,9 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include "vega10_inc.h"
#include "vega10_ppsmc.h"
#include "vendor-reset-dev.h"
#include "firmware.h"
#include "common.h"
#include "compat.h"
#include "common_baco.h"
/* MP Apertures, from smu9_smumgr.c */
@ -36,7 +38,13 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#define smnMP1_FIRMWARE_FLAGS 0x3010028
static const char *log_prefix = "vega10";
#define nv_info(fmt, arg...) pci_info(dev->pdev, "%s: " fmt, log_prefix, ##arg)
#define nv_warn(fmt, arg...) pci_warn(dev->pdev, "%s: " fmt, log_prefix, ##arg)
#define nv_err(fmt, arg...) pci_err(dev->pdev, "%s: " fmt, log_prefix, ##arg)
extern int vega10_reg_base_init(struct amd_fake_dev *adev);
extern bool amdgpu_get_bios(struct amd_fake_dev *adev);
/* drivers/gpu/drm/amd/powerplay/hwmgr/vega10_baco.c */
static const struct soc15_baco_cmd_entry pre_baco_tbl[] = {
@ -127,7 +135,7 @@ static int amd_vega10_reset(struct vendor_reset_dev *dev)
struct amd_vendor_private *priv = amd_private(dev);
struct amd_fake_dev *adev;
int ret = 0, timeout;
u32 sol, smu_resp, mp1_intr, psp_bl_ready;
u32 sol, smu_resp, mp1_intr, psp_bl_ready, features_mask;
enum BACO_STATE baco_state;
adev = &priv->adev;
@ -139,6 +147,20 @@ static int amd_vega10_reset(struct vendor_reset_dev *dev)
if (ret)
goto free_adev;
if (!amdgpu_get_bios(adev))
{
nv_err("amdgpu_get_bios failed: %d\n", ret);
ret = -ENOTSUPP;
goto free_adev;
}
ret = atom_bios_init(adev);
if (ret)
{
nv_err("atom_bios_init failed: %d\n", ret);
goto free_adev;
}
/* it's important we wait for the SOC to be ready */
for (timeout = 100000; timeout; --timeout)
{
@ -176,6 +198,74 @@ static int amd_vega10_reset(struct vendor_reset_dev *dev)
if (!sol)
goto free_adev;
/* disable smu features */
ret = smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_GetEnabledSmuFeatures, 0, &features_mask);
if (ret)
{
nv_warn("Could not get enabled SMU features, trying BACO reset anyway [ret %d]\n", ret);
goto baco_reset;
}
/*
* Based on the following observed sequence:
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00800000 ret= features=GNLD_FW_CTF
* ...
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00010000 ret= features=GNLD_THERMAL
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00004000 ret= features=GNLD_PPT
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00008000 ret= features=GNLD_TDC
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x08000000 ret= features=GNLD_DIDT
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x01000000 ret= features=GNLD_LED_DISPLAY
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x0000030f ret= features=GNLD_DPM_PREFETCHER|GNLD_DPM_GFXCLK|GNLD_DPM_UCLK|GNLD_DPM_SOCCLK|GNLD_DPM_LINK|GNLD_DPM_DCEFCLK
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00000400 ret= features=GNLD_AVFS
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00000800 ret= features=GNLD_DS_GFXCLK
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00001000 ret= features=GNLD_DS_SOCCLK
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00002000 ret= features=GNLD_DS_LCLK
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00080000 ret= features=GNLD_DS_DCEFCLK
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x00000040 ret= features=GNLD_ULV
* cmd=PPSMC_MSG_DisableSmuFeatures param=0x10000000 ret= features=GNLD_ACG
* cmd=PPSMC_MSG_GfxDeviceDriverReset param=0x00000002 ret=
*/
nv_info("Disabling features\n");
if (features_mask & 0x00800000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00800000, NULL);
if (features_mask & 0x00010000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00010000, NULL);
if (features_mask & 0x00004000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00004000, NULL);
if (features_mask & 0x00008000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00008000, NULL);
if (features_mask & 0x08000000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x08000000, NULL);
if (features_mask & 0x01000000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x01000000, NULL);
if (features_mask & 0x0000030f)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x0000030f, NULL);
if (features_mask & 0x00000400)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00000400, NULL);
if (features_mask & 0x00000800)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00000800, NULL);
if (features_mask & 0x00001000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00001000, NULL);
if (features_mask & 0x00002000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00002000, NULL);
if (features_mask & 0x00080000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00080000, NULL);
if (features_mask & 0x00000040)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x00000040, NULL);
if (features_mask & 0x10000000)
smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DisableSmuFeatures, 0x10000000, NULL);
/* driver reset */
nv_info("Driver reset\n");
ret = smum_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_GfxDeviceDriverReset, 0x2, NULL);
if (ret)
nv_warn("Could not reset w/ PPSMC_MSG_GfxDeviceDriverReset: %d\n", ret);
/* no reference for this, observed timing appears to be ~500ms */
msleep(500);
baco_reset:
if (baco_state == BACO_STATE_OUT)
{
pci_info(dev->pdev, "Vega10: Entering BACO\n");