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linuxdebug/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c

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null pointer error
2024-07-16 15:50:57 +02:00
/*
* 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 <linux/firmware.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <drm/drm_drv.h>
#include "amdgpu.h"
#include "amdgpu_psp.h"
#include "amdgpu_ras.h"
#include "amdgpu_ucode.h"
#include "soc15_common.h"
#include "psp_v11_0.h"
#include "mp/mp_11_0_offset.h"
#include "mp/mp_11_0_sh_mask.h"
#include "gc/gc_9_0_offset.h"
#include "sdma0/sdma0_4_0_offset.h"
#include "nbio/nbio_7_4_offset.h"
#include "oss/osssys_4_0_offset.h"
#include "oss/osssys_4_0_sh_mask.h"
MODULE_FIRMWARE("amdgpu/vega20_sos.bin");
MODULE_FIRMWARE("amdgpu/vega20_asd.bin");
MODULE_FIRMWARE("amdgpu/vega20_ta.bin");
MODULE_FIRMWARE("amdgpu/navi10_sos.bin");
MODULE_FIRMWARE("amdgpu/navi10_asd.bin");
MODULE_FIRMWARE("amdgpu/navi10_ta.bin");
MODULE_FIRMWARE("amdgpu/navi14_sos.bin");
MODULE_FIRMWARE("amdgpu/navi14_asd.bin");
MODULE_FIRMWARE("amdgpu/navi14_ta.bin");
MODULE_FIRMWARE("amdgpu/navi12_sos.bin");
MODULE_FIRMWARE("amdgpu/navi12_asd.bin");
MODULE_FIRMWARE("amdgpu/navi12_ta.bin");
MODULE_FIRMWARE("amdgpu/navi12_cap.bin");
MODULE_FIRMWARE("amdgpu/arcturus_sos.bin");
MODULE_FIRMWARE("amdgpu/arcturus_asd.bin");
MODULE_FIRMWARE("amdgpu/arcturus_ta.bin");
MODULE_FIRMWARE("amdgpu/sienna_cichlid_sos.bin");
MODULE_FIRMWARE("amdgpu/sienna_cichlid_ta.bin");
MODULE_FIRMWARE("amdgpu/sienna_cichlid_cap.bin");
MODULE_FIRMWARE("amdgpu/navy_flounder_sos.bin");
MODULE_FIRMWARE("amdgpu/navy_flounder_ta.bin");
MODULE_FIRMWARE("amdgpu/vangogh_asd.bin");
MODULE_FIRMWARE("amdgpu/vangogh_toc.bin");
MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_sos.bin");
MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_ta.bin");
MODULE_FIRMWARE("amdgpu/beige_goby_sos.bin");
MODULE_FIRMWARE("amdgpu/beige_goby_ta.bin");
/* address block */
#define smnMP1_FIRMWARE_FLAGS 0x3010024
/* navi10 reg offset define */
#define mmRLC_GPM_UCODE_ADDR_NV10 0x5b61
#define mmRLC_GPM_UCODE_DATA_NV10 0x5b62
#define mmSDMA0_UCODE_ADDR_NV10 0x5880
#define mmSDMA0_UCODE_DATA_NV10 0x5881
/* memory training timeout define */
#define MEM_TRAIN_SEND_MSG_TIMEOUT_US 3000000
/* For large FW files the time to complete can be very long */
#define USBC_PD_POLLING_LIMIT_S 240
/* Read USB-PD from LFB */
#define GFX_CMD_USB_PD_USE_LFB 0x480
static int psp_v11_0_init_microcode(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
const char *chip_name;
char fw_name[PSP_FW_NAME_LEN];
int err = 0;
const struct ta_firmware_header_v1_0 *ta_hdr;
DRM_DEBUG("\n");
switch (adev->ip_versions[MP0_HWIP][0]) {
case IP_VERSION(11, 0, 2):
chip_name = "vega20";
break;
case IP_VERSION(11, 0, 0):
chip_name = "navi10";
break;
case IP_VERSION(11, 0, 5):
chip_name = "navi14";
break;
case IP_VERSION(11, 0, 9):
chip_name = "navi12";
break;
case IP_VERSION(11, 0, 4):
chip_name = "arcturus";
break;
case IP_VERSION(11, 0, 7):
chip_name = "sienna_cichlid";
break;
case IP_VERSION(11, 0, 11):
chip_name = "navy_flounder";
break;
case IP_VERSION(11, 5, 0):
chip_name = "vangogh";
break;
case IP_VERSION(11, 0, 12):
chip_name = "dimgrey_cavefish";
break;
case IP_VERSION(11, 0, 13):
chip_name = "beige_goby";
break;
default:
BUG();
}
switch (adev->ip_versions[MP0_HWIP][0]) {
case IP_VERSION(11, 0, 2):
case IP_VERSION(11, 0, 4):
err = psp_init_sos_microcode(psp, chip_name);
if (err)
return err;
err = psp_init_asd_microcode(psp, chip_name);
if (err)
return err;
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ta.bin", chip_name);
err = request_firmware(&adev->psp.ta_fw, fw_name, adev->dev);
if (err) {
release_firmware(adev->psp.ta_fw);
adev->psp.ta_fw = NULL;
dev_info(adev->dev,
"psp v11.0: Failed to load firmware \"%s\"\n", fw_name);
} else {
err = amdgpu_ucode_validate(adev->psp.ta_fw);
if (err)
goto out2;
ta_hdr = (const struct ta_firmware_header_v1_0 *)adev->psp.ta_fw->data;
adev->psp.xgmi_context.context.bin_desc.fw_version =
le32_to_cpu(ta_hdr->xgmi.fw_version);
adev->psp.xgmi_context.context.bin_desc.size_bytes =
le32_to_cpu(ta_hdr->xgmi.size_bytes);
adev->psp.xgmi_context.context.bin_desc.start_addr =
(uint8_t *)ta_hdr +
le32_to_cpu(ta_hdr->header.ucode_array_offset_bytes);
adev->psp.ta_fw_version = le32_to_cpu(ta_hdr->header.ucode_version);
adev->psp.ras_context.context.bin_desc.fw_version =
le32_to_cpu(ta_hdr->ras.fw_version);
adev->psp.ras_context.context.bin_desc.size_bytes =
le32_to_cpu(ta_hdr->ras.size_bytes);
adev->psp.ras_context.context.bin_desc.start_addr =
(uint8_t *)adev->psp.xgmi_context.context.bin_desc.start_addr +
le32_to_cpu(ta_hdr->ras.offset_bytes);
}
break;
case IP_VERSION(11, 0, 0):
case IP_VERSION(11, 0, 5):
case IP_VERSION(11, 0, 9):
err = psp_init_sos_microcode(psp, chip_name);
if (err)
return err;
err = psp_init_asd_microcode(psp, chip_name);
if (err)
return err;
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ta.bin", chip_name);
err = request_firmware(&adev->psp.ta_fw, fw_name, adev->dev);
if (err) {
release_firmware(adev->psp.ta_fw);
adev->psp.ta_fw = NULL;
dev_info(adev->dev,
"psp v11.0: Failed to load firmware \"%s\"\n", fw_name);
} else {
err = amdgpu_ucode_validate(adev->psp.ta_fw);
if (err)
goto out2;
ta_hdr = (const struct ta_firmware_header_v1_0 *)adev->psp.ta_fw->data;
adev->psp.hdcp_context.context.bin_desc.fw_version =
le32_to_cpu(ta_hdr->hdcp.fw_version);
adev->psp.hdcp_context.context.bin_desc.size_bytes =
le32_to_cpu(ta_hdr->hdcp.size_bytes);
adev->psp.hdcp_context.context.bin_desc.start_addr =
(uint8_t *)ta_hdr +
le32_to_cpu(
ta_hdr->header.ucode_array_offset_bytes);
adev->psp.ta_fw_version = le32_to_cpu(ta_hdr->header.ucode_version);
adev->psp.dtm_context.context.bin_desc.fw_version =
le32_to_cpu(ta_hdr->dtm.fw_version);
adev->psp.dtm_context.context.bin_desc.size_bytes =
le32_to_cpu(ta_hdr->dtm.size_bytes);
adev->psp.dtm_context.context.bin_desc.start_addr =
(uint8_t *)adev->psp.hdcp_context.context
.bin_desc.start_addr +
le32_to_cpu(ta_hdr->dtm.offset_bytes);
}
break;
case IP_VERSION(11, 0, 7):
case IP_VERSION(11, 0, 11):
case IP_VERSION(11, 0, 12):
case IP_VERSION(11, 0, 13):
err = psp_init_sos_microcode(psp, chip_name);
if (err)
return err;
err = psp_init_ta_microcode(psp, chip_name);
if (err)
return err;
break;
case IP_VERSION(11, 5, 0):
err = psp_init_asd_microcode(psp, chip_name);
if (err)
return err;
err = psp_init_toc_microcode(psp, chip_name);
if (err)
return err;
break;
default:
BUG();
}
return 0;
out2:
release_firmware(adev->psp.ta_fw);
adev->psp.ta_fw = NULL;
return err;
}
static int psp_v11_0_wait_for_bootloader(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
int ret;
int retry_loop;
for (retry_loop = 0; retry_loop < 10; retry_loop++) {
/* Wait for bootloader to signify that is
ready having bit 31 of C2PMSG_35 set to 1 */
ret = psp_wait_for(psp,
SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
0x80000000,
0x80000000,
false);
if (ret == 0)
return 0;
}
return ret;
}
static bool psp_v11_0_is_sos_alive(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
uint32_t sol_reg;
sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
return sol_reg != 0x0;
}
static int psp_v11_0_bootloader_load_component(struct psp_context *psp,
struct psp_bin_desc *bin_desc,
enum psp_bootloader_cmd bl_cmd)
{
int ret;
uint32_t psp_gfxdrv_command_reg = 0;
struct amdgpu_device *adev = psp->adev;
/* Check sOS sign of life register to confirm sys driver and sOS
* are already been loaded.
*/
if (psp_v11_0_is_sos_alive(psp))
return 0;
ret = psp_v11_0_wait_for_bootloader(psp);
if (ret)
return ret;
/* Copy PSP System Driver binary to memory */
psp_copy_fw(psp, bin_desc->start_addr, bin_desc->size_bytes);
/* Provide the sys driver to bootloader */
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
(uint32_t)(psp->fw_pri_mc_addr >> 20));
psp_gfxdrv_command_reg = bl_cmd;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
psp_gfxdrv_command_reg);
ret = psp_v11_0_wait_for_bootloader(psp);
return ret;
}
static int psp_v11_0_bootloader_load_kdb(struct psp_context *psp)
{
return psp_v11_0_bootloader_load_component(psp, &psp->kdb, PSP_BL__LOAD_KEY_DATABASE);
}
static int psp_v11_0_bootloader_load_spl(struct psp_context *psp)
{
return psp_v11_0_bootloader_load_component(psp, &psp->spl, PSP_BL__LOAD_TOS_SPL_TABLE);
}
static int psp_v11_0_bootloader_load_sysdrv(struct psp_context *psp)
{
return psp_v11_0_bootloader_load_component(psp, &psp->sys, PSP_BL__LOAD_SYSDRV);
}
static int psp_v11_0_bootloader_load_sos(struct psp_context *psp)
{
int ret;
unsigned int psp_gfxdrv_command_reg = 0;
struct amdgpu_device *adev = psp->adev;
/* Check sOS sign of life register to confirm sys driver and sOS
* are already been loaded.
*/
if (psp_v11_0_is_sos_alive(psp))
return 0;
ret = psp_v11_0_wait_for_bootloader(psp);
if (ret)
return ret;
/* Copy Secure OS binary to PSP memory */
psp_copy_fw(psp, psp->sos.start_addr, psp->sos.size_bytes);
/* Provide the PSP secure OS to bootloader */
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
(uint32_t)(psp->fw_pri_mc_addr >> 20));
psp_gfxdrv_command_reg = PSP_BL__LOAD_SOSDRV;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
psp_gfxdrv_command_reg);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_81),
RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81),
0, true);
return ret;
}
static int psp_v11_0_ring_init(struct psp_context *psp,
enum psp_ring_type ring_type)
{
int ret = 0;
struct psp_ring *ring;
struct amdgpu_device *adev = psp->adev;
ring = &psp->km_ring;
ring->ring_type = ring_type;
/* allocate 4k Page of Local Frame Buffer memory for ring */
ring->ring_size = 0x1000;
ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
&adev->firmware.rbuf,
&ring->ring_mem_mc_addr,
(void **)&ring->ring_mem);
if (ret) {
ring->ring_size = 0;
return ret;
}
return 0;
}
static int psp_v11_0_ring_stop(struct psp_context *psp,
enum psp_ring_type ring_type)
{
int ret = 0;
struct amdgpu_device *adev = psp->adev;
/* Write the ring destroy command*/
if (amdgpu_sriov_vf(adev))
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING);
else
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64,
GFX_CTRL_CMD_ID_DESTROY_RINGS);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) */
if (amdgpu_sriov_vf(adev))
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
0x80000000, 0x80000000, false);
else
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
0x80000000, 0x80000000, false);
return ret;
}
static int psp_v11_0_ring_create(struct psp_context *psp,
enum psp_ring_type ring_type)
{
int ret = 0;
unsigned int psp_ring_reg = 0;
struct psp_ring *ring = &psp->km_ring;
struct amdgpu_device *adev = psp->adev;
if (amdgpu_sriov_vf(adev)) {
ring->ring_wptr = 0;
ret = psp_v11_0_ring_stop(psp, ring_type);
if (ret) {
DRM_ERROR("psp_v11_0_ring_stop_sriov failed!\n");
return ret;
}
/* Write low address of the ring to C2PMSG_102 */
psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, psp_ring_reg);
/* Write high address of the ring to C2PMSG_103 */
psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_103, psp_ring_reg);
/* Write the ring initialization command to C2PMSG_101 */
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
GFX_CTRL_CMD_ID_INIT_GPCOM_RING);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) in C2PMSG_101 */
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
0x80000000, 0x8000FFFF, false);
} else {
/* Wait for sOS ready for ring creation */
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
0x80000000, 0x80000000, false);
if (ret) {
DRM_ERROR("Failed to wait for sOS ready for ring creation\n");
return ret;
}
/* Write low address of the ring to C2PMSG_69 */
psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg);
/* Write high address of the ring to C2PMSG_70 */
psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg);
/* Write size of ring to C2PMSG_71 */
psp_ring_reg = ring->ring_size;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg);
/* Write the ring initialization command to C2PMSG_64 */
psp_ring_reg = ring_type;
psp_ring_reg = psp_ring_reg << 16;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) in C2PMSG_64 */
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
0x80000000, 0x8000FFFF, false);
}
return ret;
}
static int psp_v11_0_ring_destroy(struct psp_context *psp,
enum psp_ring_type ring_type)
{
int ret = 0;
struct psp_ring *ring = &psp->km_ring;
struct amdgpu_device *adev = psp->adev;
ret = psp_v11_0_ring_stop(psp, ring_type);
if (ret)
DRM_ERROR("Fail to stop psp ring\n");
amdgpu_bo_free_kernel(&adev->firmware.rbuf,
&ring->ring_mem_mc_addr,
(void **)&ring->ring_mem);
return ret;
}
static int psp_v11_0_mode1_reset(struct psp_context *psp)
{
int ret;
uint32_t offset;
struct amdgpu_device *adev = psp->adev;
offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64);
ret = psp_wait_for(psp, offset, 0x80000000, 0x8000FFFF, false);
if (ret) {
DRM_INFO("psp is not working correctly before mode1 reset!\n");
return -EINVAL;
}
/*send the mode 1 reset command*/
WREG32(offset, GFX_CTRL_CMD_ID_MODE1_RST);
msleep(500);
offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33);
ret = psp_wait_for(psp, offset, 0x80000000, 0x80000000, false);
if (ret) {
DRM_INFO("psp mode 1 reset failed!\n");
return -EINVAL;
}
DRM_INFO("psp mode1 reset succeed \n");
return 0;
}
static int psp_v11_0_memory_training_send_msg(struct psp_context *psp, int msg)
{
int ret;
int i;
uint32_t data_32;
int max_wait;
struct amdgpu_device *adev = psp->adev;
data_32 = (psp->mem_train_ctx.c2p_train_data_offset >> 20);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, data_32);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, msg);
max_wait = MEM_TRAIN_SEND_MSG_TIMEOUT_US / adev->usec_timeout;
for (i = 0; i < max_wait; i++) {
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
0x80000000, 0x80000000, false);
if (ret == 0)
break;
}
if (i < max_wait)
ret = 0;
else
ret = -ETIME;
DRM_DEBUG("training %s %s, cost %d @ %d ms\n",
(msg == PSP_BL__DRAM_SHORT_TRAIN) ? "short" : "long",
(ret == 0) ? "succeed" : "failed",
i, adev->usec_timeout/1000);
return ret;
}
/*
* save and restore process
*/
static int psp_v11_0_memory_training(struct psp_context *psp, uint32_t ops)
{
struct psp_memory_training_context *ctx = &psp->mem_train_ctx;
uint32_t *pcache = (uint32_t *)ctx->sys_cache;
struct amdgpu_device *adev = psp->adev;
uint32_t p2c_header[4];
uint32_t sz;
void *buf;
int ret, idx;
if (ctx->init == PSP_MEM_TRAIN_NOT_SUPPORT) {
DRM_DEBUG("Memory training is not supported.\n");
return 0;
} else if (ctx->init != PSP_MEM_TRAIN_INIT_SUCCESS) {
DRM_ERROR("Memory training initialization failure.\n");
return -EINVAL;
}
if (psp_v11_0_is_sos_alive(psp)) {
DRM_DEBUG("SOS is alive, skip memory training.\n");
return 0;
}
amdgpu_device_vram_access(adev, ctx->p2c_train_data_offset, p2c_header, sizeof(p2c_header), false);
DRM_DEBUG("sys_cache[%08x,%08x,%08x,%08x] p2c_header[%08x,%08x,%08x,%08x]\n",
pcache[0], pcache[1], pcache[2], pcache[3],
p2c_header[0], p2c_header[1], p2c_header[2], p2c_header[3]);
if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
DRM_DEBUG("Short training depends on restore.\n");
ops |= PSP_MEM_TRAIN_RESTORE;
}
if ((ops & PSP_MEM_TRAIN_RESTORE) &&
pcache[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
DRM_DEBUG("sys_cache[0] is invalid, restore depends on save.\n");
ops |= PSP_MEM_TRAIN_SAVE;
}
if (p2c_header[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
!(pcache[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
pcache[3] == p2c_header[3])) {
DRM_DEBUG("sys_cache is invalid or out-of-date, need save training data to sys_cache.\n");
ops |= PSP_MEM_TRAIN_SAVE;
}
if ((ops & PSP_MEM_TRAIN_SAVE) &&
p2c_header[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
DRM_DEBUG("p2c_header[0] is invalid, save depends on long training.\n");
ops |= PSP_MEM_TRAIN_SEND_LONG_MSG;
}
if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
ops &= ~PSP_MEM_TRAIN_SEND_SHORT_MSG;
ops |= PSP_MEM_TRAIN_SAVE;
}
DRM_DEBUG("Memory training ops:%x.\n", ops);
if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
/*
* Long training will encroach a certain amount on the bottom of VRAM;
* save the content from the bottom of VRAM to system memory
* before training, and restore it after training to avoid
* VRAM corruption.
*/
sz = GDDR6_MEM_TRAINING_ENCROACHED_SIZE;
if (adev->gmc.visible_vram_size < sz || !adev->mman.aper_base_kaddr) {
DRM_ERROR("visible_vram_size %llx or aper_base_kaddr %p is not initialized.\n",
adev->gmc.visible_vram_size,
adev->mman.aper_base_kaddr);
return -EINVAL;
}
buf = vmalloc(sz);
if (!buf) {
DRM_ERROR("failed to allocate system memory.\n");
return -ENOMEM;
}
if (drm_dev_enter(adev_to_drm(adev), &idx)) {
memcpy_fromio(buf, adev->mman.aper_base_kaddr, sz);
ret = psp_v11_0_memory_training_send_msg(psp, PSP_BL__DRAM_LONG_TRAIN);
if (ret) {
DRM_ERROR("Send long training msg failed.\n");
vfree(buf);
drm_dev_exit(idx);
return ret;
}
memcpy_toio(adev->mman.aper_base_kaddr, buf, sz);
adev->hdp.funcs->flush_hdp(adev, NULL);
vfree(buf);
drm_dev_exit(idx);
} else {
vfree(buf);
return -ENODEV;
}
}
if (ops & PSP_MEM_TRAIN_SAVE) {
amdgpu_device_vram_access(psp->adev, ctx->p2c_train_data_offset, ctx->sys_cache, ctx->train_data_size, false);
}
if (ops & PSP_MEM_TRAIN_RESTORE) {
amdgpu_device_vram_access(psp->adev, ctx->c2p_train_data_offset, ctx->sys_cache, ctx->train_data_size, true);
}
if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
ret = psp_v11_0_memory_training_send_msg(psp, (amdgpu_force_long_training > 0) ?
PSP_BL__DRAM_LONG_TRAIN : PSP_BL__DRAM_SHORT_TRAIN);
if (ret) {
DRM_ERROR("send training msg failed.\n");
return ret;
}
}
ctx->training_cnt++;
return 0;
}
static uint32_t psp_v11_0_ring_get_wptr(struct psp_context *psp)
{
uint32_t data;
struct amdgpu_device *adev = psp->adev;
if (amdgpu_sriov_vf(adev))
data = psp->km_ring.ring_wptr;
else
data = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
return data;
}
static void psp_v11_0_ring_set_wptr(struct psp_context *psp, uint32_t value)
{
struct amdgpu_device *adev = psp->adev;
if (amdgpu_sriov_vf(adev)) {
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, value);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, GFX_CTRL_CMD_ID_CONSUME_CMD);
psp->km_ring.ring_wptr = value;
} else
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, value);
}
static int psp_v11_0_load_usbc_pd_fw(struct psp_context *psp, uint64_t fw_pri_mc_addr)
{
struct amdgpu_device *adev = psp->adev;
uint32_t reg_status;
int ret, i = 0;
/*
* LFB address which is aligned to 1MB address and has to be
* right-shifted by 20 so that LFB address can be passed on a 32-bit C2P
* register
*/
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, (fw_pri_mc_addr >> 20));
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
0x80000000, 0x80000000, false);
if (ret)
return ret;
/* Fireup interrupt so PSP can pick up the address */
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, (GFX_CMD_USB_PD_USE_LFB << 16));
/* FW load takes very long time */
do {
msleep(1000);
reg_status = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35);
if (reg_status & 0x80000000)
goto done;
} while (++i < USBC_PD_POLLING_LIMIT_S);
return -ETIME;
done:
if ((reg_status & 0xFFFF) != 0) {
DRM_ERROR("Address load failed - MP0_SMN_C2PMSG_35.Bits [15:0] = 0x%04x\n",
reg_status & 0xFFFF);
return -EIO;
}
return 0;
}
static int psp_v11_0_read_usbc_pd_fw(struct psp_context *psp, uint32_t *fw_ver)
{
struct amdgpu_device *adev = psp->adev;
int ret;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, C2PMSG_CMD_GFX_USB_PD_FW_VER);
ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
0x80000000, 0x80000000, false);
if (!ret)
*fw_ver = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36);
return ret;
}
static const struct psp_funcs psp_v11_0_funcs = {
.init_microcode = psp_v11_0_init_microcode,
.bootloader_load_kdb = psp_v11_0_bootloader_load_kdb,
.bootloader_load_spl = psp_v11_0_bootloader_load_spl,
.bootloader_load_sysdrv = psp_v11_0_bootloader_load_sysdrv,
.bootloader_load_sos = psp_v11_0_bootloader_load_sos,
.ring_init = psp_v11_0_ring_init,
.ring_create = psp_v11_0_ring_create,
.ring_stop = psp_v11_0_ring_stop,
.ring_destroy = psp_v11_0_ring_destroy,
.mode1_reset = psp_v11_0_mode1_reset,
.mem_training = psp_v11_0_memory_training,
.ring_get_wptr = psp_v11_0_ring_get_wptr,
.ring_set_wptr = psp_v11_0_ring_set_wptr,
.load_usbc_pd_fw = psp_v11_0_load_usbc_pd_fw,
.read_usbc_pd_fw = psp_v11_0_read_usbc_pd_fw
};
void psp_v11_0_set_psp_funcs(struct psp_context *psp)
{
psp->funcs = &psp_v11_0_funcs;
}