drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c - linux - Git at Google

 /*
  * Copyright 2014 Advanced Micro Devices, Inc.
  * Copyright 2008 Red Hat Inc.
  * Copyright 2009 Jerome Glisse.
  *
  * 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 "amdgpu.h"
 #include "amdgpu_gfx.h"
 #include "amdgpu_rlc.h"

 /**
  * amdgpu_gfx_rlc_enter_safe_mode - Set RLC into safe mode
  *
  * @adev: amdgpu_device pointer
  *
  * Set RLC enter into safe mode if RLC is enabled and haven't in safe mode.
  */
 void amdgpu_gfx_rlc_enter_safe_mode(struct amdgpu_device *adev)
 {
 	if (adev->gfx.rlc.in_safe_mode)
 		return;

 	/* if RLC is not enabled, do nothing */
 	if (!adev->gfx.rlc.funcs->is_rlc_enabled(adev))
 		return;

 	if (adev->cg_flags &
 	    (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG |
 	     AMD_CG_SUPPORT_GFX_3D_CGCG)) {
 		adev->gfx.rlc.funcs->set_safe_mode(adev);
 		adev->gfx.rlc.in_safe_mode = true;
 	}
 }

 /**
  * amdgpu_gfx_rlc_exit_safe_mode - Set RLC out of safe mode
  *
  * @adev: amdgpu_device pointer
  *
  * Set RLC exit safe mode if RLC is enabled and have entered into safe mode.
  */
 void amdgpu_gfx_rlc_exit_safe_mode(struct amdgpu_device *adev)
 {
 	if (!(adev->gfx.rlc.in_safe_mode))
 		return;

 	/* if RLC is not enabled, do nothing */
 	if (!adev->gfx.rlc.funcs->is_rlc_enabled(adev))
 		return;

 	if (adev->cg_flags &
 	    (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG |
 	     AMD_CG_SUPPORT_GFX_3D_CGCG)) {
 		adev->gfx.rlc.funcs->unset_safe_mode(adev);
 		adev->gfx.rlc.in_safe_mode = false;
 	}
 }

 /**
  * amdgpu_gfx_rlc_init_sr - Init save restore block
  *
  * @adev: amdgpu_device pointer
  * @dws: the size of save restore block
  *
  * Allocate and setup value to save restore block of rlc.
  * Returns 0 on succeess or negative error code if allocate failed.
  */
 int amdgpu_gfx_rlc_init_sr(struct amdgpu_device *adev, u32 dws)
 {
 	const u32 *src_ptr;
 	volatile u32 *dst_ptr;
 	u32 i;
 	int r;

 	/* allocate save restore block */
 	r = amdgpu_bo_create_reserved(adev, dws * 4, PAGE_SIZE,
 				      AMDGPU_GEM_DOMAIN_VRAM,
 				      &adev->gfx.rlc.save_restore_obj,
 				      &adev->gfx.rlc.save_restore_gpu_addr,
 				      (void **)&adev->gfx.rlc.sr_ptr);
 	if (r) {
 		dev_warn(adev->dev, "(%d) create RLC sr bo failed\n", r);
 		amdgpu_gfx_rlc_fini(adev);
 		return r;
 	}

 	/* write the sr buffer */
 	src_ptr = adev->gfx.rlc.reg_list;
 	dst_ptr = adev->gfx.rlc.sr_ptr;
 	for (i = 0; i < adev->gfx.rlc.reg_list_size; i++)
 		dst_ptr[i] = cpu_to_le32(src_ptr[i]);
 	amdgpu_bo_kunmap(adev->gfx.rlc.save_restore_obj);
 	amdgpu_bo_unreserve(adev->gfx.rlc.save_restore_obj);

 	return 0;
 }

 /**
  * amdgpu_gfx_rlc_init_csb - Init clear state block
  *
  * @adev: amdgpu_device pointer
  *
  * Allocate and setup value to clear state block of rlc.
  * Returns 0 on succeess or negative error code if allocate failed.
  */
 int amdgpu_gfx_rlc_init_csb(struct amdgpu_device *adev)
 {
 	u32 dws;
 	int r;

 	/* allocate clear state block */
 	adev->gfx.rlc.clear_state_size = dws = adev->gfx.rlc.funcs->get_csb_size(adev);
 	r = amdgpu_bo_create_kernel(adev, dws * 4, PAGE_SIZE,
 				      AMDGPU_GEM_DOMAIN_VRAM,
 				      &adev->gfx.rlc.clear_state_obj,
 				      &adev->gfx.rlc.clear_state_gpu_addr,
 				      (void **)&adev->gfx.rlc.cs_ptr);
 	if (r) {
 		dev_err(adev->dev, "(%d) failed to create rlc csb bo\n", r);
 		amdgpu_gfx_rlc_fini(adev);
 		return r;
 	}

 	return 0;
 }

 /**
  * amdgpu_gfx_rlc_init_cpt - Init cp table
  *
  * @adev: amdgpu_device pointer
  *
  * Allocate and setup value to cp table of rlc.
  * Returns 0 on succeess or negative error code if allocate failed.
  */
 int amdgpu_gfx_rlc_init_cpt(struct amdgpu_device *adev)
 {
 	int r;

 	r = amdgpu_bo_create_reserved(adev, adev->gfx.rlc.cp_table_size,
 				      PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
 				      &adev->gfx.rlc.cp_table_obj,
 				      &adev->gfx.rlc.cp_table_gpu_addr,
 				      (void **)&adev->gfx.rlc.cp_table_ptr);
 	if (r) {
 		dev_err(adev->dev, "(%d) failed to create cp table bo\n", r);
 		amdgpu_gfx_rlc_fini(adev);
 		return r;
 	}

 	/* set up the cp table */
 	amdgpu_gfx_rlc_setup_cp_table(adev);
 	amdgpu_bo_kunmap(adev->gfx.rlc.cp_table_obj);
 	amdgpu_bo_unreserve(adev->gfx.rlc.cp_table_obj);

 	return 0;
 }

 /**
  * amdgpu_gfx_rlc_setup_cp_table - setup cp the buffer of cp table
  *
  * @adev: amdgpu_device pointer
  *
  * Write cp firmware data into cp table.
  */
 void amdgpu_gfx_rlc_setup_cp_table(struct amdgpu_device *adev)
 {
 	const __le32 *fw_data;
 	volatile u32 *dst_ptr;
 	int me, i, max_me;
 	u32 bo_offset = 0;
 	u32 table_offset, table_size;

 	max_me = adev->gfx.rlc.funcs->get_cp_table_num(adev);

 	/* write the cp table buffer */
 	dst_ptr = adev->gfx.rlc.cp_table_ptr;
 	for (me = 0; me < max_me; me++) {
 		if (me == 0) {
 			const struct gfx_firmware_header_v1_0 *hdr =
 				(const struct gfx_firmware_header_v1_0 *)adev->gfx.ce_fw->data;
 			fw_data = (const __le32 *)
 				(adev->gfx.ce_fw->data +
 				 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 			table_offset = le32_to_cpu(hdr->jt_offset);
 			table_size = le32_to_cpu(hdr->jt_size);
 		} else if (me == 1) {
 			const struct gfx_firmware_header_v1_0 *hdr =
 				(const struct gfx_firmware_header_v1_0 *)adev->gfx.pfp_fw->data;
 			fw_data = (const __le32 *)
 				(adev->gfx.pfp_fw->data +
 				 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 			table_offset = le32_to_cpu(hdr->jt_offset);
 			table_size = le32_to_cpu(hdr->jt_size);
 		} else if (me == 2) {
 			const struct gfx_firmware_header_v1_0 *hdr =
 				(const struct gfx_firmware_header_v1_0 *)adev->gfx.me_fw->data;
 			fw_data = (const __le32 *)
 				(adev->gfx.me_fw->data +
 				 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 			table_offset = le32_to_cpu(hdr->jt_offset);
 			table_size = le32_to_cpu(hdr->jt_size);
 		} else if (me == 3) {
 			const struct gfx_firmware_header_v1_0 *hdr =
 				(const struct gfx_firmware_header_v1_0 *)adev->gfx.mec_fw->data;
 			fw_data = (const __le32 *)
 				(adev->gfx.mec_fw->data +
 				 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 			table_offset = le32_to_cpu(hdr->jt_offset);
 			table_size = le32_to_cpu(hdr->jt_size);
 		} else  if (me == 4) {
 			const struct gfx_firmware_header_v1_0 *hdr =
 				(const struct gfx_firmware_header_v1_0 *)adev->gfx.mec2_fw->data;
 			fw_data = (const __le32 *)
 				(adev->gfx.mec2_fw->data +
 				 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 			table_offset = le32_to_cpu(hdr->jt_offset);
 			table_size = le32_to_cpu(hdr->jt_size);
 		}

 		for (i = 0; i < table_size; i ++) {
 			dst_ptr[bo_offset + i] =
 				cpu_to_le32(le32_to_cpu(fw_data[table_offset + i]));
 		}

 		bo_offset += table_size;
 	}
 }

 /**
  * amdgpu_gfx_rlc_fini - Free BO which used for RLC
  *
  * @adev: amdgpu_device pointer
  *
  * Free three BO which is used for rlc_save_restore_block, rlc_clear_state_block
  * and rlc_jump_table_block.
  */
 void amdgpu_gfx_rlc_fini(struct amdgpu_device *adev)
 {
 	/* save restore block */
 	if (adev->gfx.rlc.save_restore_obj) {
 		amdgpu_bo_free_kernel(&adev->gfx.rlc.save_restore_obj,
 				      &adev->gfx.rlc.save_restore_gpu_addr,
 				      (void **)&adev->gfx.rlc.sr_ptr);
 	}

 	/* clear state block */
 	amdgpu_bo_free_kernel(&adev->gfx.rlc.clear_state_obj,
 			      &adev->gfx.rlc.clear_state_gpu_addr,
 			      (void **)&adev->gfx.rlc.cs_ptr);

 	/* jump table block */
 	amdgpu_bo_free_kernel(&adev->gfx.rlc.cp_table_obj,
 			      &adev->gfx.rlc.cp_table_gpu_addr,
 			      (void **)&adev->gfx.rlc.cp_table_ptr);
 }
	/*
	* Copyright 2014 Advanced Micro Devices, Inc.
	* Copyright 2008 Red Hat Inc.
	* Copyright 2009 Jerome Glisse.
	*
	* 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 "amdgpu.h"
	#include "amdgpu_gfx.h"
	#include "amdgpu_rlc.h"

	/**
	* amdgpu_gfx_rlc_enter_safe_mode - Set RLC into safe mode
	*
	* @adev: amdgpu_device pointer
	*
	* Set RLC enter into safe mode if RLC is enabled and haven't in safe mode.
	*/
	void amdgpu_gfx_rlc_enter_safe_mode(struct amdgpu_device *adev)
	{
	if (adev->gfx.rlc.in_safe_mode)
	return;

	/* if RLC is not enabled, do nothing */
	if (!adev->gfx.rlc.funcs->is_rlc_enabled(adev))
	return;

	if (adev->cg_flags &
	(AMD_CG_SUPPORT_GFX_CGCG \| AMD_CG_SUPPORT_GFX_MGCG \|
	AMD_CG_SUPPORT_GFX_3D_CGCG)) {
	adev->gfx.rlc.funcs->set_safe_mode(adev);
	adev->gfx.rlc.in_safe_mode = true;
	}
	}

	/**
	* amdgpu_gfx_rlc_exit_safe_mode - Set RLC out of safe mode
	*
	* @adev: amdgpu_device pointer
	*
	* Set RLC exit safe mode if RLC is enabled and have entered into safe mode.
	*/
	void amdgpu_gfx_rlc_exit_safe_mode(struct amdgpu_device *adev)
	{
	if (!(adev->gfx.rlc.in_safe_mode))
	return;

	/* if RLC is not enabled, do nothing */
	if (!adev->gfx.rlc.funcs->is_rlc_enabled(adev))
	return;

	if (adev->cg_flags &
	(AMD_CG_SUPPORT_GFX_CGCG \| AMD_CG_SUPPORT_GFX_MGCG \|
	AMD_CG_SUPPORT_GFX_3D_CGCG)) {
	adev->gfx.rlc.funcs->unset_safe_mode(adev);
	adev->gfx.rlc.in_safe_mode = false;
	}
	}

	/**
	* amdgpu_gfx_rlc_init_sr - Init save restore block
	*
	* @adev: amdgpu_device pointer
	* @dws: the size of save restore block
	*
	* Allocate and setup value to save restore block of rlc.
	* Returns 0 on succeess or negative error code if allocate failed.
	*/
	int amdgpu_gfx_rlc_init_sr(struct amdgpu_device *adev, u32 dws)
	{
	const u32 *src_ptr;
	volatile u32 *dst_ptr;
	u32 i;
	int r;

	/* allocate save restore block */
	r = amdgpu_bo_create_reserved(adev, dws * 4, PAGE_SIZE,
	AMDGPU_GEM_DOMAIN_VRAM,
	&adev->gfx.rlc.save_restore_obj,
	&adev->gfx.rlc.save_restore_gpu_addr,
	(void **)&adev->gfx.rlc.sr_ptr);
	if (r) {
	dev_warn(adev->dev, "(%d) create RLC sr bo failed\n", r);
	amdgpu_gfx_rlc_fini(adev);
	return r;
	}

	/* write the sr buffer */
	src_ptr = adev->gfx.rlc.reg_list;
	dst_ptr = adev->gfx.rlc.sr_ptr;
	for (i = 0; i < adev->gfx.rlc.reg_list_size; i++)
	dst_ptr[i] = cpu_to_le32(src_ptr[i]);
	amdgpu_bo_kunmap(adev->gfx.rlc.save_restore_obj);
	amdgpu_bo_unreserve(adev->gfx.rlc.save_restore_obj);

	return 0;
	}

	/**
	* amdgpu_gfx_rlc_init_csb - Init clear state block
	*
	* @adev: amdgpu_device pointer
	*
	* Allocate and setup value to clear state block of rlc.
	* Returns 0 on succeess or negative error code if allocate failed.
	*/
	int amdgpu_gfx_rlc_init_csb(struct amdgpu_device *adev)
	{
	u32 dws;
	int r;

	/* allocate clear state block */
	adev->gfx.rlc.clear_state_size = dws = adev->gfx.rlc.funcs->get_csb_size(adev);
	r = amdgpu_bo_create_kernel(adev, dws * 4, PAGE_SIZE,
	AMDGPU_GEM_DOMAIN_VRAM,
	&adev->gfx.rlc.clear_state_obj,
	&adev->gfx.rlc.clear_state_gpu_addr,
	(void **)&adev->gfx.rlc.cs_ptr);
	if (r) {
	dev_err(adev->dev, "(%d) failed to create rlc csb bo\n", r);
	amdgpu_gfx_rlc_fini(adev);
	return r;
	}

	return 0;
	}

	/**
	* amdgpu_gfx_rlc_init_cpt - Init cp table
	*
	* @adev: amdgpu_device pointer
	*
	* Allocate and setup value to cp table of rlc.
	* Returns 0 on succeess or negative error code if allocate failed.
	*/
	int amdgpu_gfx_rlc_init_cpt(struct amdgpu_device *adev)
	{
	int r;

	r = amdgpu_bo_create_reserved(adev, adev->gfx.rlc.cp_table_size,
	PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
	&adev->gfx.rlc.cp_table_obj,
	&adev->gfx.rlc.cp_table_gpu_addr,
	(void **)&adev->gfx.rlc.cp_table_ptr);
	if (r) {
	dev_err(adev->dev, "(%d) failed to create cp table bo\n", r);
	amdgpu_gfx_rlc_fini(adev);
	return r;
	}

	/* set up the cp table */
	amdgpu_gfx_rlc_setup_cp_table(adev);
	amdgpu_bo_kunmap(adev->gfx.rlc.cp_table_obj);
	amdgpu_bo_unreserve(adev->gfx.rlc.cp_table_obj);

	return 0;
	}

	/**
	* amdgpu_gfx_rlc_setup_cp_table - setup cp the buffer of cp table
	*
	* @adev: amdgpu_device pointer
	*
	* Write cp firmware data into cp table.
	*/
	void amdgpu_gfx_rlc_setup_cp_table(struct amdgpu_device *adev)
	{
	const __le32 *fw_data;
	volatile u32 *dst_ptr;
	int me, i, max_me;
	u32 bo_offset = 0;
	u32 table_offset, table_size;

	max_me = adev->gfx.rlc.funcs->get_cp_table_num(adev);

	/* write the cp table buffer */
	dst_ptr = adev->gfx.rlc.cp_table_ptr;
	for (me = 0; me < max_me; me++) {
	if (me == 0) {
	const struct gfx_firmware_header_v1_0 *hdr =
	(const struct gfx_firmware_header_v1_0 *)adev->gfx.ce_fw->data;
	fw_data = (const __le32 *)
	(adev->gfx.ce_fw->data +
	le32_to_cpu(hdr->header.ucode_array_offset_bytes));
	table_offset = le32_to_cpu(hdr->jt_offset);
	table_size = le32_to_cpu(hdr->jt_size);
	} else if (me == 1) {
	const struct gfx_firmware_header_v1_0 *hdr =
	(const struct gfx_firmware_header_v1_0 *)adev->gfx.pfp_fw->data;
	fw_data = (const __le32 *)
	(adev->gfx.pfp_fw->data +
	le32_to_cpu(hdr->header.ucode_array_offset_bytes));
	table_offset = le32_to_cpu(hdr->jt_offset);
	table_size = le32_to_cpu(hdr->jt_size);
	} else if (me == 2) {
	const struct gfx_firmware_header_v1_0 *hdr =
	(const struct gfx_firmware_header_v1_0 *)adev->gfx.me_fw->data;
	fw_data = (const __le32 *)
	(adev->gfx.me_fw->data +
	le32_to_cpu(hdr->header.ucode_array_offset_bytes));
	table_offset = le32_to_cpu(hdr->jt_offset);
	table_size = le32_to_cpu(hdr->jt_size);
	} else if (me == 3) {
	const struct gfx_firmware_header_v1_0 *hdr =
	(const struct gfx_firmware_header_v1_0 *)adev->gfx.mec_fw->data;
	fw_data = (const __le32 *)
	(adev->gfx.mec_fw->data +
	le32_to_cpu(hdr->header.ucode_array_offset_bytes));
	table_offset = le32_to_cpu(hdr->jt_offset);
	table_size = le32_to_cpu(hdr->jt_size);
	} else if (me == 4) {
	const struct gfx_firmware_header_v1_0 *hdr =
	(const struct gfx_firmware_header_v1_0 *)adev->gfx.mec2_fw->data;
	fw_data = (const __le32 *)
	(adev->gfx.mec2_fw->data +
	le32_to_cpu(hdr->header.ucode_array_offset_bytes));
	table_offset = le32_to_cpu(hdr->jt_offset);
	table_size = le32_to_cpu(hdr->jt_size);
	}

	for (i = 0; i < table_size; i ++) {
	dst_ptr[bo_offset + i] =
	cpu_to_le32(le32_to_cpu(fw_data[table_offset + i]));
	}

	bo_offset += table_size;
	}
	}

	/**
	* amdgpu_gfx_rlc_fini - Free BO which used for RLC
	*
	* @adev: amdgpu_device pointer
	*
	* Free three BO which is used for rlc_save_restore_block, rlc_clear_state_block
	* and rlc_jump_table_block.
	*/
	void amdgpu_gfx_rlc_fini(struct amdgpu_device *adev)
	{
	/* save restore block */
	if (adev->gfx.rlc.save_restore_obj) {
	amdgpu_bo_free_kernel(&adev->gfx.rlc.save_restore_obj,
	&adev->gfx.rlc.save_restore_gpu_addr,
	(void **)&adev->gfx.rlc.sr_ptr);
	}

	/* clear state block */
	amdgpu_bo_free_kernel(&adev->gfx.rlc.clear_state_obj,
	&adev->gfx.rlc.clear_state_gpu_addr,
	(void **)&adev->gfx.rlc.cs_ptr);

	/* jump table block */
	amdgpu_bo_free_kernel(&adev->gfx.rlc.cp_table_obj,
	&adev->gfx.rlc.cp_table_gpu_addr,
	(void **)&adev->gfx.rlc.cp_table_ptr);
	}