/* SPDX-License-Identifier: MIT */
/*
* Copyright ( C ) 2024 Advanced Micro Devices , Inc . All rights reserved .
* All Rights Reserved .
*
* 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 , sub license , 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 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 NON - INFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS , AUTHORS AND / OR ITS SUPPLIERS 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 .
*
* The above copyright notice and this permission notice ( including the
* next paragraph ) shall be included in all copies or substantial portions
* of the Software .
*
*/
#include <linux/firmware.h>
#include <linux/mfd/core.h>
#include "amdgpu.h"
#include "amdgpu_isp.h"
#include "isp_v4_1_0.h"
#include "isp_v4_1_1.h"
#define ISP_MC_ADDR_ALIGN (1024 * 32 )
/**
* isp_hw_init - start and test isp block
*
* @ ip_block : Pointer to the amdgpu_ip_block for this hw instance .
*
*/
static int isp_hw_init(struct amdgpu_ip_block *ip_block)
{
struct amdgpu_device *adev = ip_block->adev;
struct amdgpu_isp *isp = &adev->isp;
if (isp->funcs->hw_init != NULL)
return isp->funcs->hw_init(isp);
return -ENODEV;
}
/**
* isp_hw_fini - stop the hardware block
*
* @ ip_block : Pointer to the amdgpu_ip_block for this hw instance .
*
*/
static int isp_hw_fini(struct amdgpu_ip_block *ip_block)
{
struct amdgpu_isp *isp = &ip_block->adev->isp;
if (isp->funcs->hw_fini != NULL)
return isp->funcs->hw_fini(isp);
return -ENODEV;
}
static int isp_load_fw_by_psp(struct amdgpu_device *adev)
{
const struct common_firmware_header *hdr;
char ucode_prefix[10 ];
int r = 0 ;
/* get isp fw binary name and path */
amdgpu_ucode_ip_version_decode(adev, ISP_HWIP, ucode_prefix,
sizeof (ucode_prefix));
/* read isp fw */
r = amdgpu_ucode_request(adev, &adev->isp.fw, AMDGPU_UCODE_OPTIONAL,
"amdgpu/%s.bin" , ucode_prefix);
if (r) {
amdgpu_ucode_release(&adev->isp.fw);
return r;
}
hdr = (const struct common_firmware_header *)adev->isp.fw->data;
adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].ucode_id =
AMDGPU_UCODE_ID_ISP;
adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].fw = adev->isp.fw;
adev->firmware.fw_size +=
ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
return r;
}
static int isp_early_init(struct amdgpu_ip_block *ip_block)
{
struct amdgpu_device *adev = ip_block->adev;
struct amdgpu_isp *isp = &adev->isp;
switch (amdgpu_ip_version(adev, ISP_HWIP, 0 )) {
case IP_VERSION(4 , 1 , 0 ):
isp_v4_1_0_set_isp_funcs(isp);
break ;
case IP_VERSION(4 , 1 , 1 ):
isp_v4_1_1_set_isp_funcs(isp);
break ;
default :
return -EINVAL;
}
isp->adev = adev;
isp->parent = adev->dev;
if (isp_load_fw_by_psp(adev)) {
DRM_DEBUG_DRIVER("%s: isp fw load failed\n" , __func__);
return -ENOENT;
}
return 0 ;
}
static bool isp_is_idle(struct amdgpu_ip_block *ip_block)
{
return true ;
}
static int isp_set_clockgating_state(struct amdgpu_ip_block *ip_block,
enum amd_clockgating_state state)
{
return 0 ;
}
static int isp_set_powergating_state(struct amdgpu_ip_block *ip_block,
enum amd_powergating_state state)
{
return 0 ;
}
static int is_valid_isp_device(struct device *isp_parent, struct device *amdgpu_dev)
{
if (isp_parent != amdgpu_dev)
return -EINVAL;
return 0 ;
}
/**
* isp_user_buffer_alloc - create user buffer object ( BO ) for isp
*
* @ dev : isp device handle
* @ dmabuf : DMABUF handle for isp buffer allocated in system memory
* @ buf_obj : GPU buffer object handle to initialize
* @ buf_addr : GPU addr of the pinned BO to initialize
*
* Imports isp DMABUF to allocate and pin a user BO for isp internal use . It does
* GART alloc to generate GPU addr for BO to make it accessible through the
* GART aperture for ISP HW .
*
* This function is exported to allow the V4L2 isp device external to drm device
* to create and access the isp user BO .
*
* Returns :
* 0 on success , negative error code otherwise .
*/
int isp_user_buffer_alloc(struct device *dev, void *dmabuf,
void **buf_obj, u64 *buf_addr)
{
struct platform_device *ispdev = to_platform_device(dev);
const struct isp_platform_data *isp_pdata;
struct amdgpu_device *adev;
struct mfd_cell *mfd_cell;
struct amdgpu_bo *bo;
u64 gpu_addr;
int ret;
if (WARN_ON(!ispdev))
return -ENODEV;
if (WARN_ON(!buf_obj))
return -EINVAL;
if (WARN_ON(!buf_addr))
return -EINVAL;
mfd_cell = &ispdev->mfd_cell[0 ];
if (!mfd_cell)
return -ENODEV;
isp_pdata = mfd_cell->platform_data;
adev = isp_pdata->adev;
ret = is_valid_isp_device(ispdev->dev.parent, adev->dev);
if (ret)
return ret;
ret = amdgpu_bo_create_isp_user(adev, dmabuf,
AMDGPU_GEM_DOMAIN_GTT, &bo, &gpu_addr);
if (ret) {
drm_err(&adev->ddev, "failed to alloc gart user buffer (%d)" , ret);
return ret;
}
*buf_obj = (void *)bo;
*buf_addr = gpu_addr;
return 0 ;
}
EXPORT_SYMBOL(isp_user_buffer_alloc);
/**
* isp_user_buffer_free - free isp user buffer object ( BO )
*
* @ buf_obj : amdgpu isp user BO to free
*
* unpin and unref BO for isp internal use .
*
* This function is exported to allow the V4L2 isp device
* external to drm device to free the isp user BO .
*/
void isp_user_buffer_free(void *buf_obj)
{
amdgpu_bo_free_isp_user(buf_obj);
}
EXPORT_SYMBOL(isp_user_buffer_free);
/**
* isp_kernel_buffer_alloc - create kernel buffer object ( BO ) for isp
*
* @ dev : isp device handle
* @ size : size for the new BO
* @ buf_obj : GPU BO handle to initialize
* @ gpu_addr : GPU addr of the pinned BO
* @ cpu_addr : CPU address mapping of BO
*
* Allocates and pins a kernel BO for internal isp firmware use .
*
* This function is exported to allow the V4L2 isp device
* external to drm device to create and access the kernel BO .
*
* Returns :
* 0 on success , negative error code otherwise .
*/
int isp_kernel_buffer_alloc(struct device *dev, u64 size,
void **buf_obj, u64 *gpu_addr, void **cpu_addr)
{
struct platform_device *ispdev = to_platform_device(dev);
struct amdgpu_bo **bo = (struct amdgpu_bo **)buf_obj;
const struct isp_platform_data *isp_pdata;
struct amdgpu_device *adev;
struct mfd_cell *mfd_cell;
int ret;
if (WARN_ON(!ispdev))
return -ENODEV;
if (WARN_ON(!buf_obj))
return -EINVAL;
if (WARN_ON(!gpu_addr))
return -EINVAL;
if (WARN_ON(!cpu_addr))
return -EINVAL;
mfd_cell = &ispdev->mfd_cell[0 ];
if (!mfd_cell)
return -ENODEV;
isp_pdata = mfd_cell->platform_data;
adev = isp_pdata->adev;
ret = is_valid_isp_device(ispdev->dev.parent, adev->dev);
if (ret)
return ret;
/* Ensure *bo is NULL so a new BO will be created */
*bo = NULL;
ret = amdgpu_bo_create_kernel(adev,
size,
ISP_MC_ADDR_ALIGN,
AMDGPU_GEM_DOMAIN_GTT,
bo,
gpu_addr,
cpu_addr);
if (!cpu_addr || ret) {
drm_err(&adev->ddev, "failed to alloc gart kernel buffer (%d)" , ret);
return ret;
}
return 0 ;
}
EXPORT_SYMBOL(isp_kernel_buffer_alloc);
/**
* isp_kernel_buffer_free - free isp kernel buffer object ( BO )
*
* @ buf_obj : amdgpu isp user BO to free
* @ gpu_addr : GPU addr of isp kernel BO
* @ cpu_addr : CPU addr of isp kernel BO
*
* unmaps and unpin a isp kernel BO .
*
* This function is exported to allow the V4L2 isp device
* external to drm device to free the kernel BO .
*/
void isp_kernel_buffer_free(void **buf_obj, u64 *gpu_addr, void **cpu_addr)
{
struct amdgpu_bo **bo = (struct amdgpu_bo **)buf_obj;
amdgpu_bo_free_kernel(bo, gpu_addr, cpu_addr);
}
EXPORT_SYMBOL(isp_kernel_buffer_free);
static const struct amd_ip_funcs isp_ip_funcs = {
.name = "isp_ip" ,
.early_init = isp_early_init,
.hw_init = isp_hw_init,
.hw_fini = isp_hw_fini,
.is_idle = isp_is_idle,
.set_clockgating_state = isp_set_clockgating_state,
.set_powergating_state = isp_set_powergating_state,
};
const struct amdgpu_ip_block_version isp_v4_1_0_ip_block = {
.type = AMD_IP_BLOCK_TYPE_ISP,
.major = 4 ,
.minor = 1 ,
.rev = 0 ,
.funcs = &isp_ip_funcs,
};
const struct amdgpu_ip_block_version isp_v4_1_1_ip_block = {
.type = AMD_IP_BLOCK_TYPE_ISP,
.major = 4 ,
.minor = 1 ,
.rev = 1 ,
.funcs = &isp_ip_funcs,
};
Messung V0.5 in Prozent C=97 H=100 G=98
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-10-03)
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