/*
* 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)
{
volatile u32 *dst_ptr;
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_reserved(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;
}
/* set up the cs buffer */
dst_ptr = adev->gfx.rlc.cs_ptr;
adev->gfx.rlc.funcs->get_csb_buffer(adev, dst_ptr);
amdgpu_bo_kunmap(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unpin(adev->gfx.rlc.clear_state_obj);
amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
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);
}
