diff options
author | Dave Airlie <airlied@redhat.com> | 2025-07-21 11:57:43 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2025-07-21 11:57:43 +1000 |
commit | acab5fbd77a55dc7913632a354b969ae9090e78c (patch) | |
tree | 0d178d5fb40d30c719928155a9ce285bbbb5cc64 /drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c | |
parent | be3cd668fffe2a1dc8a9c617b44c5f46fa2e4b96 (diff) | |
parent | 6ac55eab4fc41e0ea80f9064945e4340f13d8b5c (diff) |
Merge tag 'amd-drm-next-6.17-2025-07-17' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.17-2025-07-17:
amdgpu:
- Partition fixes
- Reset fixes
- RAS fixes
- i2c fix
- MPC updates
- DSC cleanup
- EDID fixes
- Display idle D3 update
- IPS updates
- DMUB updates
- Retimer fix
- Replay fixes
- Fix DC memory leak
- Initial support for smartmux
- DCN 4.0.1 degamma LUT fix
- Per queue reset cleanups
- Track ring state associated with a fence
- SR-IOV fixes
- SMU fixes
- Per queue reset improvements for GC 9+ compute
- Per queue reset improvements for GC 10+ gfx
- Per queue reset improvements for SDMA 5+
- Per queue reset improvements for JPEG 2+
- Per queue reset improvements for VCN 2+
- GC 8 fix
- ISP updates
amdkfd:
- Enable KFD on LoongArch
radeon:
- Drop console lock during suspend/resume
UAPI:
- Add userq slot info to INFO IOCTL
Used for IGT userq validation tests (https://lists.freedesktop.org/archives/igt-dev/2025-July/093228.html)
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250717213827.2061581-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c index 43fc941dfa57..9cddbf50442a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c @@ -33,6 +33,8 @@ #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 * @@ -141,6 +143,179 @@ static int isp_set_powergating_state(struct amdgpu_ip_block *ip_block, 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; + + 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, |