Commit 954d5d43 authored by Chunming Zhou's avatar Chunming Zhou Committed by Alex Deucher
Browse files

drm/amdgpu: add nbio7 support 



NBIO handles misc bus io functions on the chip.  This
helper lib has the apppropriate functions for NBIO 7.0.

Signed-off-by: default avatarChunming Zhou <David1.Zhou@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 16f7bf09

drivers/gpu/drm/amd/amdgpu/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o cik_ih.o kv_smc.o kv_dpm.o \ 
amdgpu-$(CONFIG_DRM_AMDGPU_SI)+= si.o gmc_v6_0.o gfx_v6_0.o si_ih.o si_dma.o dce_v6_0.o si_dpm.o si_smc.o



amdgpu-y += \

	vi.o mxgpu_vi.o nbio_v6_1.o soc15.o mxgpu_ai.o

	vi.o mxgpu_vi.o nbio_v6_1.o soc15.o mxgpu_ai.o nbio_v7_0.o



# add GMC block

amdgpu-y += \

drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c

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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.

 *

 */

#include "amdgpu.h"

#include "amdgpu_atombios.h"

#include "nbio_v7_0.h"



#include "vega10/soc15ip.h"

#include "raven1/NBIO/nbio_7_0_default.h"

#include "raven1/NBIO/nbio_7_0_offset.h"

#include "raven1/NBIO/nbio_7_0_sh_mask.h"

#include "vega10/vega10_enum.h"



#define smnNBIF_MGCG_CTRL_LCLK	0x1013a05c



u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev)

{

        u32 tmp = RREG32(SOC15_REG_OFFSET(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0));



	tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;

	tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;



	return tmp;

}



u32 nbio_v7_0_get_atombios_scratch_regs(struct amdgpu_device *adev,

					uint32_t idx)

{

	return RREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIOS_SCRATCH_0) + idx);

}



void nbio_v7_0_set_atombios_scratch_regs(struct amdgpu_device *adev,

					 uint32_t idx, uint32_t val)

{

	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIOS_SCRATCH_0) + idx, val);

}



void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable)

{

	if (enable)

		WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIF_FB_EN),

			BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);

	else

		WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIF_FB_EN), 0);

}



void nbio_v7_0_hdp_flush(struct amdgpu_device *adev)

{

	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL), 0);

}



u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev)

{

	return RREG32(SOC15_REG_OFFSET(NBIO, 0, mmRCC_CONFIG_MEMSIZE));

}



static const u32 nbio_sdma_doorbell_range_reg[] =

{

	SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE),

	SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE)

};



void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instance,

				  bool use_doorbell, int doorbell_index)

{

	u32 doorbell_range = RREG32(nbio_sdma_doorbell_range_reg[instance]);



	if (use_doorbell) {

		doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index);

		doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 2);

	} else

		doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0);



	WREG32(nbio_sdma_doorbell_range_reg[instance], doorbell_range);

}



void nbio_v7_0_enable_doorbell_aperture(struct amdgpu_device *adev,

					bool enable)

{

	u32 tmp;



	tmp = RREG32(SOC15_REG_OFFSET(NBIO, 0,  mmRCC_DOORBELL_APER_EN));

	if (enable)

		tmp = REG_SET_FIELD(tmp,  RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, 1);

	else

		tmp = REG_SET_FIELD(tmp,  RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, 0);



	WREG32(SOC15_REG_OFFSET(NBIO, 0,  mmRCC_DOORBELL_APER_EN), tmp);

}



void nbio_v7_0_ih_doorbell_range(struct amdgpu_device *adev,

				bool use_doorbell, int doorbell_index)

{

	u32 ih_doorbell_range = RREG32(SOC15_REG_OFFSET(NBIO, 0 , mmBIF_IH_DOORBELL_RANGE));



	if (use_doorbell) {

		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index);

		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 2);

	} else

		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0);



	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIF_IH_DOORBELL_RANGE), ih_doorbell_range);

}



static uint32_t nbio_7_0_read_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset)

{

	uint32_t data;



	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_INDEX), offset);

	data = RREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_DATA));



	return data;

}



static void nbio_7_0_write_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset,

				       uint32_t data)

{

	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_INDEX), offset);

	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_DATA), data);

}



void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,

						bool enable)

{

	uint32_t def, data;



	/* NBIF_MGCG_CTRL_LCLK */

	def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK);



	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))

		data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK;

	else

		data &= ~NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK;



	if (def != data)

		WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data);



	/* SYSHUB_MGCG_CTRL_SOCCLK */

	def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK);



	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))

		data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK;

	else

		data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK;



	if (def != data)

		nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK, data);



	/* SYSHUB_MGCG_CTRL_SHUBCLK */

	def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK);



	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))

		data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK;

	else

		data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK;



	if (def != data)

		nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK, data);

}



void nbio_v7_0_ih_control(struct amdgpu_device *adev)

{

	u32 interrupt_cntl;



	/* setup interrupt control */

	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmINTERRUPT_CNTL2), adev->dummy_page.addr >> 8);

	interrupt_cntl = RREG32(SOC15_REG_OFFSET(NBIO, 0, mmINTERRUPT_CNTL));

	/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi

	 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN

	 */

	interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0);

	/* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */

	interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0);

	WREG32(SOC15_REG_OFFSET(NBIO, 0, mmINTERRUPT_CNTL), interrupt_cntl);

}



struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg;

struct nbio_pcie_index_data nbio_v7_0_pcie_index_data;



int nbio_v7_0_init(struct amdgpu_device *adev)

{

	nbio_v7_0_hdp_flush_reg.hdp_flush_req_offset = SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_REQ);

	nbio_v7_0_hdp_flush_reg.hdp_flush_done_offset = SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_DONE);

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp0 = GPU_HDP_FLUSH_DONE__CP0_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp1 = GPU_HDP_FLUSH_DONE__CP1_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp2 = GPU_HDP_FLUSH_DONE__CP2_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp3 = GPU_HDP_FLUSH_DONE__CP3_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp4 = GPU_HDP_FLUSH_DONE__CP4_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp5 = GPU_HDP_FLUSH_DONE__CP5_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp6 = GPU_HDP_FLUSH_DONE__CP6_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp7 = GPU_HDP_FLUSH_DONE__CP7_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp8 = GPU_HDP_FLUSH_DONE__CP8_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK;

	nbio_v7_0_hdp_flush_reg.ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK;



	nbio_v7_0_pcie_index_data.index_offset = SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2);

	nbio_v7_0_pcie_index_data.data_offset = SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2);



	return 0;

}

drivers/gpu/drm/amd/amdgpu/nbio_v7_0.h

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Original line number Diff line number Diff line 
/*

 * 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.

 *

 */



#ifndef __NBIO_V7_0_H__

#define __NBIO_V7_0_H__



#include "soc15_common.h"



extern struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg;

extern struct nbio_pcie_index_data nbio_v7_0_pcie_index_data;

int nbio_v7_0_init(struct amdgpu_device *adev);

u32 nbio_v7_0_get_atombios_scratch_regs(struct amdgpu_device *adev,

                                        uint32_t idx);

void nbio_v7_0_set_atombios_scratch_regs(struct amdgpu_device *adev,

                                         uint32_t idx, uint32_t val);

void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable);

void nbio_v7_0_hdp_flush(struct amdgpu_device *adev);

u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev);

void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instance,

				  bool use_doorbell, int doorbell_index);

void nbio_v7_0_enable_doorbell_aperture(struct amdgpu_device *adev,

					bool enable);

void nbio_v7_0_ih_doorbell_range(struct amdgpu_device *adev,

				bool use_doorbell, int doorbell_index);

void nbio_v7_0_ih_control(struct amdgpu_device *adev);

u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev);

void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,

						bool enable);

#endif

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