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linux_dsm_epyc7002/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c
Pixel Ding ee73164a0d drm/amdgpu/virt: don't check VALID bit for FLR completion message 
The interrupt after FLR is missed sometimes due to hardware reason, so
guest driver get the notification of FLR completion via polling
message. Then host doesn't write VALID bit to avoid sending interrupt,
otherwise the completion will be handled twice.

So there's a valid message without VALID bit for FLR completion,
driver should handle it without checking.

Signed-off-by: Pixel Ding <Pixel.Ding@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-04-28 17:32:40 -04:00

614 lines
20 KiB
C
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/*
* Copyright 2017 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.
*
* Authors: Xiangliang.Yu@amd.com
*/
#include "amdgpu.h"
#include "vi.h"
#include "bif/bif_5_0_d.h"
#include "bif/bif_5_0_sh_mask.h"
#include "vid.h"
#include "gca/gfx_8_0_d.h"
#include "gca/gfx_8_0_sh_mask.h"
#include "gmc_v8_0.h"
#include "gfx_v8_0.h"
#include "sdma_v3_0.h"
#include "tonga_ih.h"
#include "gmc/gmc_8_2_d.h"
#include "gmc/gmc_8_2_sh_mask.h"
#include "oss/oss_3_0_d.h"
#include "oss/oss_3_0_sh_mask.h"
#include "gca/gfx_8_0_sh_mask.h"
#include "dce/dce_10_0_d.h"
#include "dce/dce_10_0_sh_mask.h"
#include "smu/smu_7_1_3_d.h"
#include "mxgpu_vi.h"
/* VI golden setting */
static const u32 xgpu_fiji_mgcg_cgcg_init[] = {
mmRLC_CGTT_MGCG_OVERRIDE, 0xffffffff, 0xffffffff,
mmGRBM_GFX_INDEX, 0xffffffff, 0xe0000000,
mmCB_CGTT_SCLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_BCI_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_CP_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_CPC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_CPF_CLK_CTRL, 0xffffffff, 0x40000100,
mmCGTT_DRM_CLK_CTRL0, 0xffffffff, 0x00600100,
mmCGTT_GDS_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_IA_CLK_CTRL, 0xffffffff, 0x06000100,
mmCGTT_PA_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_WD_CLK_CTRL, 0xffffffff, 0x06000100,
mmCGTT_PC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_RLC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SPI_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SQ_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SQG_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL0, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL1, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL2, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL3, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL4, 0xffffffff, 0x00000100,
mmCGTT_TCI_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_TCP_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_VGT_CLK_CTRL, 0xffffffff, 0x06000100,
mmDB_CGTT_CLK_CTRL_0, 0xffffffff, 0x00000100,
mmTA_CGTT_CTRL, 0xffffffff, 0x00000100,
mmTCA_CGTT_SCLK_CTRL, 0xffffffff, 0x00000100,
mmTCC_CGTT_SCLK_CTRL, 0xffffffff, 0x00000100,
mmTD_CGTT_CTRL, 0xffffffff, 0x00000100,
mmGRBM_GFX_INDEX, 0xffffffff, 0xe0000000,
mmCGTS_SM_CTRL_REG, 0xffffffff, 0x96e00200,
mmCP_RB_WPTR_POLL_CNTL, 0xffffffff, 0x00900100,
mmRLC_CGCG_CGLS_CTRL, 0xffffffff, 0x0020003c,
mmPCIE_INDEX, 0xffffffff, 0x0140001c,
mmPCIE_DATA, 0x000f0000, 0x00000000,
mmSMC_IND_INDEX_4, 0xffffffff, 0xC060000C,
mmSMC_IND_DATA_4, 0xc0000fff, 0x00000100,
mmXDMA_CLOCK_GATING_CNTL, 0xffffffff, 0x00000100,
mmXDMA_MEM_POWER_CNTL, 0x00000101, 0x00000000,
mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104,
mmCGTT_DRM_CLK_CTRL0, 0xff000fff, 0x00000100,
mmHDP_XDP_CGTT_BLK_CTRL, 0xc0000fff, 0x00000104,
mmCP_MEM_SLP_CNTL, 0x00000001, 0x00000001,
mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100,
};
static const u32 xgpu_fiji_golden_settings_a10[] = {
mmCB_HW_CONTROL_3, 0x000001ff, 0x00000040,
mmDB_DEBUG2, 0xf00fffff, 0x00000400,
mmDCI_CLK_CNTL, 0x00000080, 0x00000000,
mmFBC_DEBUG_COMP, 0x000000f0, 0x00000070,
mmFBC_MISC, 0x1f311fff, 0x12300000,
mmHDMI_CONTROL, 0x31000111, 0x00000011,
mmPA_SC_ENHANCE, 0xffffffff, 0x20000001,
mmPA_SC_LINE_STIPPLE_STATE, 0x0000ff0f, 0x00000000,
mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
mmSQ_RANDOM_WAVE_PRI, 0x001fffff, 0x000006fd,
mmTA_CNTL_AUX, 0x000f000f, 0x000b0000,
mmTCC_EXE_DISABLE, 0x00000002, 0x00000002,
mmTCP_ADDR_CONFIG, 0x000003ff, 0x000000ff,
mmVGT_RESET_DEBUG, 0x00000004, 0x00000004,
mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
};
static const u32 xgpu_fiji_golden_common_all[] = {
mmGRBM_GFX_INDEX, 0xffffffff, 0xe0000000,
mmPA_SC_RASTER_CONFIG, 0xffffffff, 0x3a00161a,
mmPA_SC_RASTER_CONFIG_1, 0xffffffff, 0x0000002e,
mmGB_ADDR_CONFIG, 0xffffffff, 0x22011003,
mmSPI_RESOURCE_RESERVE_CU_0, 0xffffffff, 0x00000800,
mmSPI_RESOURCE_RESERVE_CU_1, 0xffffffff, 0x00000800,
mmSPI_RESOURCE_RESERVE_EN_CU_0, 0xffffffff, 0x00007FBF,
mmSPI_RESOURCE_RESERVE_EN_CU_1, 0xffffffff, 0x00007FAF,
mmGRBM_GFX_INDEX, 0xffffffff, 0xe0000000,
mmSPI_CONFIG_CNTL_1, 0x0000000f, 0x00000009,
};
static const u32 xgpu_tonga_mgcg_cgcg_init[] = {
mmRLC_CGTT_MGCG_OVERRIDE, 0xffffffff, 0xffffffff,
mmGRBM_GFX_INDEX, 0xffffffff, 0xe0000000,
mmCB_CGTT_SCLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_BCI_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_CP_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_CPC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_CPF_CLK_CTRL, 0xffffffff, 0x40000100,
mmCGTT_DRM_CLK_CTRL0, 0xffffffff, 0x00600100,
mmCGTT_GDS_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_IA_CLK_CTRL, 0xffffffff, 0x06000100,
mmCGTT_PA_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_WD_CLK_CTRL, 0xffffffff, 0x06000100,
mmCGTT_PC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_RLC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SC_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SPI_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SQ_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SQG_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL0, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL1, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL2, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL3, 0xffffffff, 0x00000100,
mmCGTT_SX_CLK_CTRL4, 0xffffffff, 0x00000100,
mmCGTT_TCI_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_TCP_CLK_CTRL, 0xffffffff, 0x00000100,
mmCGTT_VGT_CLK_CTRL, 0xffffffff, 0x06000100,
mmDB_CGTT_CLK_CTRL_0, 0xffffffff, 0x00000100,
mmTA_CGTT_CTRL, 0xffffffff, 0x00000100,
mmTCA_CGTT_SCLK_CTRL, 0xffffffff, 0x00000100,
mmTCC_CGTT_SCLK_CTRL, 0xffffffff, 0x00000100,
mmTD_CGTT_CTRL, 0xffffffff, 0x00000100,
mmGRBM_GFX_INDEX, 0xffffffff, 0xe0000000,
mmCGTS_CU0_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU0_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU0_TA_SQC_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU0_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU0_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_CU1_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU1_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU1_TA_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU1_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU1_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_CU2_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU2_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU2_TA_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU2_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU2_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_CU3_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU3_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU3_TA_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU3_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU3_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_CU4_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU4_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU4_TA_SQC_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU4_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU4_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_CU5_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU5_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU5_TA_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU5_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU5_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_CU6_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU6_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU6_TA_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU6_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU6_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_CU7_SP0_CTRL_REG, 0xffffffff, 0x00010000,
mmCGTS_CU7_LDS_SQ_CTRL_REG, 0xffffffff, 0x00030002,
mmCGTS_CU7_TA_CTRL_REG, 0xffffffff, 0x00040007,
mmCGTS_CU7_SP1_CTRL_REG, 0xffffffff, 0x00060005,
mmCGTS_CU7_TD_TCP_CTRL_REG, 0xffffffff, 0x00090008,
mmCGTS_SM_CTRL_REG, 0xffffffff, 0x96e00200,
mmCP_RB_WPTR_POLL_CNTL, 0xffffffff, 0x00900100,
mmRLC_CGCG_CGLS_CTRL, 0xffffffff, 0x0020003c,
mmPCIE_INDEX, 0xffffffff, 0x0140001c,
mmPCIE_DATA, 0x000f0000, 0x00000000,
mmSMC_IND_INDEX_4, 0xffffffff, 0xC060000C,
mmSMC_IND_DATA_4, 0xc0000fff, 0x00000100,
mmXDMA_CLOCK_GATING_CNTL, 0xffffffff, 0x00000100,
mmXDMA_MEM_POWER_CNTL, 0x00000101, 0x00000000,
mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104,
mmCGTT_DRM_CLK_CTRL0, 0xff000fff, 0x00000100,
mmHDP_XDP_CGTT_BLK_CTRL, 0xc0000fff, 0x00000104,
mmCP_MEM_SLP_CNTL, 0x00000001, 0x00000001,
mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100,
};
static const u32 xgpu_tonga_golden_settings_a11[] = {
mmCB_HW_CONTROL, 0xfffdf3cf, 0x00007208,
mmCB_HW_CONTROL_3, 0x00000040, 0x00000040,
mmDB_DEBUG2, 0xf00fffff, 0x00000400,
mmDCI_CLK_CNTL, 0x00000080, 0x00000000,
mmFBC_DEBUG_COMP, 0x000000f0, 0x00000070,
mmFBC_MISC, 0x1f311fff, 0x12300000,
mmGB_GPU_ID, 0x0000000f, 0x00000000,
mmHDMI_CONTROL, 0x31000111, 0x00000011,
mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000,
mmMC_HUB_RDREQ_DMIF_LIMIT, 0x0000007f, 0x00000028,
mmMC_HUB_WDP_UMC, 0x00007fb6, 0x00000991,
mmPA_SC_ENHANCE, 0xffffffff, 0x20000001,
mmPA_SC_FIFO_DEPTH_CNTL, 0x000003ff, 0x000000fc,
mmPA_SC_LINE_STIPPLE_STATE, 0x0000ff0f, 0x00000000,
mmRLC_CGCG_CGLS_CTRL, 0x00000003, 0x0000003c,
mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
mmSQ_RANDOM_WAVE_PRI, 0x001fffff, 0x000006fd,
mmTA_CNTL_AUX, 0x000f000f, 0x000b0000,
mmTCC_CTRL, 0x00100000, 0xf31fff7f,
mmTCC_EXE_DISABLE, 0x00000002, 0x00000002,
mmTCP_ADDR_CONFIG, 0x000003ff, 0x000002fb,
mmTCP_CHAN_STEER_HI, 0xffffffff, 0x0000543b,
mmTCP_CHAN_STEER_LO, 0xffffffff, 0xa9210876,
mmVGT_RESET_DEBUG, 0x00000004, 0x00000004,
mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
};
static const u32 xgpu_tonga_golden_common_all[] = {
mmGRBM_GFX_INDEX, 0xffffffff, 0xe0000000,
mmPA_SC_RASTER_CONFIG, 0xffffffff, 0x16000012,
mmPA_SC_RASTER_CONFIG_1, 0xffffffff, 0x0000002A,
mmGB_ADDR_CONFIG, 0xffffffff, 0x22011002,
mmSPI_RESOURCE_RESERVE_CU_0, 0xffffffff, 0x00000800,
mmSPI_RESOURCE_RESERVE_CU_1, 0xffffffff, 0x00000800,
mmSPI_RESOURCE_RESERVE_EN_CU_0, 0xffffffff, 0x00007FBF,
};
void xgpu_vi_init_golden_registers(struct amdgpu_device *adev)
{
switch (adev->asic_type) {
case CHIP_FIJI:
amdgpu_program_register_sequence(adev,
xgpu_fiji_mgcg_cgcg_init,
(const u32)ARRAY_SIZE(
xgpu_fiji_mgcg_cgcg_init));
amdgpu_program_register_sequence(adev,
xgpu_fiji_golden_settings_a10,
(const u32)ARRAY_SIZE(
xgpu_fiji_golden_settings_a10));
amdgpu_program_register_sequence(adev,
xgpu_fiji_golden_common_all,
(const u32)ARRAY_SIZE(
xgpu_fiji_golden_common_all));
break;
case CHIP_TONGA:
amdgpu_program_register_sequence(adev,
xgpu_tonga_mgcg_cgcg_init,
(const u32)ARRAY_SIZE(
xgpu_tonga_mgcg_cgcg_init));
amdgpu_program_register_sequence(adev,
xgpu_tonga_golden_settings_a11,
(const u32)ARRAY_SIZE(
xgpu_tonga_golden_settings_a11));
amdgpu_program_register_sequence(adev,
xgpu_tonga_golden_common_all,
(const u32)ARRAY_SIZE(
xgpu_tonga_golden_common_all));
break;
default:
BUG_ON("Doesn't support chip type.\n");
break;
}
}
/*
* Mailbox communication between GPU hypervisor and VFs
*/
static void xgpu_vi_mailbox_send_ack(struct amdgpu_device *adev)
{
u32 reg;
int timeout = VI_MAILBOX_TIMEDOUT;
u32 mask = REG_FIELD_MASK(MAILBOX_CONTROL, RCV_MSG_VALID);
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
reg = REG_SET_FIELD(reg, MAILBOX_CONTROL, RCV_MSG_ACK, 1);
WREG32_NO_KIQ(mmMAILBOX_CONTROL, reg);
/*Wait for RCV_MSG_VALID to be 0*/
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
while (reg & mask) {
if (timeout <= 0) {
pr_err("RCV_MSG_VALID is not cleared\n");
break;
}
mdelay(1);
timeout -=1;
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
}
}
static void xgpu_vi_mailbox_set_valid(struct amdgpu_device *adev, bool val)
{
u32 reg;
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
reg = REG_SET_FIELD(reg, MAILBOX_CONTROL,
TRN_MSG_VALID, val ? 1 : 0);
WREG32_NO_KIQ(mmMAILBOX_CONTROL, reg);
}
static void xgpu_vi_mailbox_trans_msg(struct amdgpu_device *adev,
enum idh_request req)
{
u32 reg;
reg = RREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW0);
reg = REG_SET_FIELD(reg, MAILBOX_MSGBUF_TRN_DW0,
MSGBUF_DATA, req);
WREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW0, reg);
xgpu_vi_mailbox_set_valid(adev, true);
}
static int xgpu_vi_mailbox_rcv_msg(struct amdgpu_device *adev,
enum idh_event event)
{
u32 reg;
u32 mask = REG_FIELD_MASK(MAILBOX_CONTROL, RCV_MSG_VALID);
/* workaround: host driver doesn't set VALID for CMPL now */
if (event != IDH_FLR_NOTIFICATION_CMPL) {
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
if (!(reg & mask))
return -ENOENT;
}
reg = RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW0);
if (reg != event)
return -ENOENT;
/* send ack to PF */
xgpu_vi_mailbox_send_ack(adev);
return 0;
}
static int xgpu_vi_poll_ack(struct amdgpu_device *adev)
{
int r = 0, timeout = VI_MAILBOX_TIMEDOUT;
u32 mask = REG_FIELD_MASK(MAILBOX_CONTROL, TRN_MSG_ACK);
u32 reg;
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
while (!(reg & mask)) {
if (timeout <= 0) {
pr_err("Doesn't get ack from pf.\n");
r = -ETIME;
break;
}
msleep(1);
timeout -= 1;
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
}
return r;
}
static int xgpu_vi_poll_msg(struct amdgpu_device *adev, enum idh_event event)
{
int r = 0, timeout = VI_MAILBOX_TIMEDOUT;
r = xgpu_vi_mailbox_rcv_msg(adev, event);
while (r) {
if (timeout <= 0) {
pr_err("Doesn't get ack from pf.\n");
r = -ETIME;
break;
}
msleep(1);
timeout -= 1;
r = xgpu_vi_mailbox_rcv_msg(adev, event);
}
return r;
}
static int xgpu_vi_send_access_requests(struct amdgpu_device *adev,
enum idh_request request)
{
int r;
xgpu_vi_mailbox_trans_msg(adev, request);
/* start to poll ack */
r = xgpu_vi_poll_ack(adev);
if (r)
return r;
xgpu_vi_mailbox_set_valid(adev, false);
/* start to check msg if request is idh_req_gpu_init_access */
if (request == IDH_REQ_GPU_INIT_ACCESS ||
request == IDH_REQ_GPU_FINI_ACCESS ||
request == IDH_REQ_GPU_RESET_ACCESS) {
r = xgpu_vi_poll_msg(adev, IDH_READY_TO_ACCESS_GPU);
if (r)
return r;
}
return 0;
}
static int xgpu_vi_request_reset(struct amdgpu_device *adev)
{
return xgpu_vi_send_access_requests(adev, IDH_REQ_GPU_RESET_ACCESS);
}
static int xgpu_vi_request_full_gpu_access(struct amdgpu_device *adev,
bool init)
{
enum idh_request req;
req = init ? IDH_REQ_GPU_INIT_ACCESS : IDH_REQ_GPU_FINI_ACCESS;
return xgpu_vi_send_access_requests(adev, req);
}
static int xgpu_vi_release_full_gpu_access(struct amdgpu_device *adev,
bool init)
{
enum idh_request req;
int r = 0;
req = init ? IDH_REL_GPU_INIT_ACCESS : IDH_REL_GPU_FINI_ACCESS;
r = xgpu_vi_send_access_requests(adev, req);
return r;
}
/* add support mailbox interrupts */
static int xgpu_vi_mailbox_ack_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
DRM_DEBUG("get ack intr and do nothing.\n");
return 0;
}
static int xgpu_vi_set_mailbox_ack_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 tmp = RREG32_NO_KIQ(mmMAILBOX_INT_CNTL);
tmp = REG_SET_FIELD(tmp, MAILBOX_INT_CNTL, ACK_INT_EN,
(state == AMDGPU_IRQ_STATE_ENABLE) ? 1 : 0);
WREG32_NO_KIQ(mmMAILBOX_INT_CNTL, tmp);
return 0;
}
static void xgpu_vi_mailbox_flr_work(struct work_struct *work)
{
struct amdgpu_virt *virt = container_of(work, struct amdgpu_virt, flr_work);
struct amdgpu_device *adev = container_of(virt, struct amdgpu_device, virt);
/* wait until RCV_MSG become 3 */
if (xgpu_vi_poll_msg(adev, IDH_FLR_NOTIFICATION_CMPL)) {
pr_err("failed to recieve FLR_CMPL\n");
return;
}
/* Trigger recovery due to world switch failure */
amdgpu_sriov_gpu_reset(adev, false);
}
static int xgpu_vi_set_mailbox_rcv_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 tmp = RREG32_NO_KIQ(mmMAILBOX_INT_CNTL);
tmp = REG_SET_FIELD(tmp, MAILBOX_INT_CNTL, VALID_INT_EN,
(state == AMDGPU_IRQ_STATE_ENABLE) ? 1 : 0);
WREG32_NO_KIQ(mmMAILBOX_INT_CNTL, tmp);
return 0;
}
static int xgpu_vi_mailbox_rcv_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
int r;
/* see what event we get */
r = xgpu_vi_mailbox_rcv_msg(adev, IDH_FLR_NOTIFICATION);
/* only handle FLR_NOTIFY now */
if (!r)
schedule_work(&adev->virt.flr_work);
return 0;
}
static const struct amdgpu_irq_src_funcs xgpu_vi_mailbox_ack_irq_funcs = {
.set = xgpu_vi_set_mailbox_ack_irq,
.process = xgpu_vi_mailbox_ack_irq,
};
static const struct amdgpu_irq_src_funcs xgpu_vi_mailbox_rcv_irq_funcs = {
.set = xgpu_vi_set_mailbox_rcv_irq,
.process = xgpu_vi_mailbox_rcv_irq,
};
void xgpu_vi_mailbox_set_irq_funcs(struct amdgpu_device *adev)
{
adev->virt.ack_irq.num_types = 1;
adev->virt.ack_irq.funcs = &xgpu_vi_mailbox_ack_irq_funcs;
adev->virt.rcv_irq.num_types = 1;
adev->virt.rcv_irq.funcs = &xgpu_vi_mailbox_rcv_irq_funcs;
}
int xgpu_vi_mailbox_add_irq_id(struct amdgpu_device *adev)
{
int r;
r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 135, &adev->virt.rcv_irq);
if (r)
return r;
r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 138, &adev->virt.ack_irq);
if (r) {
amdgpu_irq_put(adev, &adev->virt.rcv_irq, 0);
return r;
}
return 0;
}
int xgpu_vi_mailbox_get_irq(struct amdgpu_device *adev)
{
int r;
r = amdgpu_irq_get(adev, &adev->virt.rcv_irq, 0);
if (r)
return r;
r = amdgpu_irq_get(adev, &adev->virt.ack_irq, 0);
if (r) {
amdgpu_irq_put(adev, &adev->virt.rcv_irq, 0);
return r;
}
INIT_WORK(&adev->virt.flr_work, xgpu_vi_mailbox_flr_work);
return 0;
}
void xgpu_vi_mailbox_put_irq(struct amdgpu_device *adev)
{
amdgpu_irq_put(adev, &adev->virt.ack_irq, 0);
amdgpu_irq_put(adev, &adev->virt.rcv_irq, 0);
}
const struct amdgpu_virt_ops xgpu_vi_virt_ops = {
.req_full_gpu = xgpu_vi_request_full_gpu_access,
.rel_full_gpu = xgpu_vi_release_full_gpu_access,
.reset_gpu = xgpu_vi_request_reset,
};
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