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linux/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
Bokun Zhang c4381d0ee8 drm/amdgpu: Add interface to load SRIOV cap FW 
- Add interface to load SRIOV cap FW. If the FW does not
  exist, simply skip this FW loading routine.
  This FW will only be loaded under SRIOV. Other driver
  configuration will not be affected.
  By adding this interface, it will make us easier to
  prepare SRIOV Linux guest driver for different users.

- Update sysfs interface to read cap FW version.

- Refactor PSP FW loading routine under SRIOV to use a
  unified SWITCH statement instead of using IF statement

- Remove redundant amdgpu_sriov_vf() check in FW loading
  routine

Acked-by: Monk Liu <monk.liu@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Bokun Zhang <Bokun.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-01-14 17:52:00 -05:00

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/*
* Copyright 2016 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.
*
* Author: Huang Rui
*
*/
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "amdgpu.h"
#include "amdgpu_psp.h"
#include "amdgpu_ucode.h"
#include "soc15_common.h"
#include "psp_v3_1.h"
#include "mp/mp_9_0_offset.h"
#include "mp/mp_9_0_sh_mask.h"
#include "gc/gc_9_0_offset.h"
#include "sdma0/sdma0_4_0_offset.h"
#include "nbio/nbio_6_1_offset.h"
#include "oss/osssys_4_0_offset.h"
#include "oss/osssys_4_0_sh_mask.h"
MODULE_FIRMWARE("amdgpu/vega10_sos.bin");
MODULE_FIRMWARE("amdgpu/vega10_asd.bin");
MODULE_FIRMWARE("amdgpu/vega10_cap.bin");
MODULE_FIRMWARE("amdgpu/vega12_sos.bin");
MODULE_FIRMWARE("amdgpu/vega12_asd.bin");
#define smnMP1_FIRMWARE_FLAGS 0x3010028
static int psp_v3_1_ring_stop(struct psp_context *psp,
enum psp_ring_type ring_type);
static int psp_v3_1_init_microcode(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
const char *chip_name;
int err = 0;
DRM_DEBUG("\n");
switch (adev->asic_type) {
case CHIP_VEGA10:
chip_name = "vega10";
break;
case CHIP_VEGA12:
chip_name = "vega12";
break;
default: BUG();
}
err = psp_init_sos_microcode(psp, chip_name);
if (err)
return err;
err = psp_init_asd_microcode(psp, chip_name);
if (err)
return err;
return 0;
}
static int psp_v3_1_bootloader_load_sysdrv(struct psp_context *psp)
{
int ret;
uint32_t psp_gfxdrv_command_reg = 0;
struct amdgpu_device *adev = psp->adev;
uint32_t sol_reg;
/* Check sOS sign of life register to confirm sys driver and sOS
* are already been loaded.
*/
sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
if (sol_reg)
return 0;
/* 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)
return ret;
/* Copy PSP System Driver binary to memory */
psp_copy_fw(psp, psp->sys.start_addr, psp->sys.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 = PSP_BL__LOAD_SYSDRV;
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_35),
0x80000000, 0x80000000, false);
return ret;
}
static int psp_v3_1_bootloader_load_sos(struct psp_context *psp)
{
int ret;
unsigned int psp_gfxdrv_command_reg = 0;
struct amdgpu_device *adev = psp->adev;
uint32_t sol_reg;
/* Check sOS sign of life register to confirm sys driver and sOS
* are already been loaded.
*/
sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
if (sol_reg)
return 0;
/* 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)
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_v3_1_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 void psp_v3_1_reroute_ih(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
uint32_t tmp;
/* Change IH ring for VMC */
tmp = REG_SET_FIELD(0, IH_CLIENT_CFG_DATA, CREDIT_RETURN_ADDR, 0x1244b);
tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, CLIENT_TYPE, 1);
tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, 3);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, tmp);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, GFX_CTRL_CMD_ID_GBR_IH_SET);
mdelay(20);
psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
0x80000000, 0x8000FFFF, false);
/* Change IH ring for UMC */
tmp = REG_SET_FIELD(0, IH_CLIENT_CFG_DATA, CREDIT_RETURN_ADDR, 0x1216b);
tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, 4);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, tmp);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, GFX_CTRL_CMD_ID_GBR_IH_SET);
mdelay(20);
psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
0x80000000, 0x8000FFFF, false);
}
static int psp_v3_1_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;
psp_v3_1_reroute_ih(psp);
if (amdgpu_sriov_vf(adev)) {
ring->ring_wptr = 0;
ret = psp_v3_1_ring_stop(psp, ring_type);
if (ret) {
DRM_ERROR("psp_v3_1_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);
/* No size initialization for sriov */
/* Write the ring initialization command to C2PMSG_101 */
psp_ring_reg = ring_type;
psp_ring_reg = psp_ring_reg << 16;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, psp_ring_reg);
/* there might be hardware handshake issue 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 {
/* 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 hardware handshake issue 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_v3_1_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_v3_1_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_v3_1_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 bool psp_v3_1_smu_reload_quirk(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
uint32_t reg;
reg = RREG32_PCIE(smnMP1_FIRMWARE_FLAGS | 0x03b00000);
return (reg & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK) ? true : false;
}
static int psp_v3_1_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 uint32_t psp_v3_1_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_v3_1_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);
/* send interrupt to PSP for SRIOV ring write pointer update */
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 const struct psp_funcs psp_v3_1_funcs = {
.init_microcode = psp_v3_1_init_microcode,
.bootloader_load_sysdrv = psp_v3_1_bootloader_load_sysdrv,
.bootloader_load_sos = psp_v3_1_bootloader_load_sos,
.ring_init = psp_v3_1_ring_init,
.ring_create = psp_v3_1_ring_create,
.ring_stop = psp_v3_1_ring_stop,
.ring_destroy = psp_v3_1_ring_destroy,
.smu_reload_quirk = psp_v3_1_smu_reload_quirk,
.mode1_reset = psp_v3_1_mode1_reset,
.ring_get_wptr = psp_v3_1_ring_get_wptr,
.ring_set_wptr = psp_v3_1_ring_set_wptr,
};
void psp_v3_1_set_psp_funcs(struct psp_context *psp)
{
psp->funcs = &psp_v3_1_funcs;
}
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