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bcm27xx: pull 6.6 patches from RPi repo
Adds latest 6.6 patches from the Raspberry Pi repository. These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.6.y/ With the following command: git format-patch -N v6.6.67..HEAD (HEAD -> 811ff707533bcd67cdcd368bbd46223082009b12) Signed-off-by: Álvaro Fernández Rojas <[email protected]>
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34 changes: 0 additions & 34 deletions
34
target/linux/bcm27xx/patches-6.6/950-1267-dts-rp1-Disable-DMA-usage-for-UART0.patch
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141 changes: 141 additions & 0 deletions
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.../linux/bcm27xx/patches-6.6/950-1351-drivers-media-bcm2835_isp-Cache-LS-table-dmabuf.patch
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| From 25e6acfe00f589a5989ebd2c8d21a130fb3bf106 Mon Sep 17 00:00:00 2001 | ||
| From: Naushir Patuck <[email protected]> | ||
| Date: Fri, 18 Oct 2024 09:18:10 +0100 | ||
| Subject: [PATCH] drivers: media: bcm2835_isp: Cache LS table dmabuf | ||
|
|
||
| Clients such as libcamera do not change the LS table dmabuf on every | ||
| frame. In such cases instead of mapping/remapping the same dmabuf on | ||
| every frame to send to the firmware, cache the dmabuf once and only | ||
| update and remap if the dmabuf has been changed by the userland client. | ||
|
|
||
| Signed-off-by: Naushir Patuck <[email protected]> | ||
| --- | ||
| .../bcm2835-isp/bcm2835-v4l2-isp.c | 77 +++++++++++-------- | ||
| 1 file changed, 46 insertions(+), 31 deletions(-) | ||
|
|
||
| --- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c | ||
| +++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c | ||
| @@ -139,6 +139,8 @@ struct bcm2835_isp_dev { | ||
| /* Image pipeline controls. */ | ||
| int r_gain; | ||
| int b_gain; | ||
| + struct dma_buf *last_ls_dmabuf; | ||
| + struct mmal_parameter_lens_shading_v2 ls; | ||
| }; | ||
|
|
||
| struct bcm2835_isp_buffer { | ||
| @@ -657,18 +659,18 @@ static void bcm2835_isp_node_stop_stream | ||
| atomic_dec(&dev->num_streaming); | ||
| /* If all ports disabled, then disable the component */ | ||
| if (atomic_read(&dev->num_streaming) == 0) { | ||
| - struct bcm2835_isp_lens_shading ls; | ||
| /* | ||
| * The ISP component on the firmware has a reference to the | ||
| * dmabuf handle for the lens shading table. Pass a null handle | ||
| * to remove that reference now. | ||
| */ | ||
| - memset(&ls, 0, sizeof(ls)); | ||
| + memset(&dev->ls, 0, sizeof(dev->ls)); | ||
| /* Must set a valid grid size for the FW */ | ||
| - ls.grid_cell_size = 16; | ||
| + dev->ls.grid_cell_size = 16; | ||
| set_isp_param(&dev->node[0], | ||
| MMAL_PARAMETER_LENS_SHADING_OVERRIDE, | ||
| - &ls, sizeof(ls)); | ||
| + &dev->ls, sizeof(dev->ls)); | ||
| + dev->last_ls_dmabuf = NULL; | ||
|
|
||
| ret = vchiq_mmal_component_disable(dev->mmal_instance, | ||
| dev->component); | ||
| @@ -719,6 +721,36 @@ static inline unsigned int get_sizeimage | ||
| return (bpl * height * fmt->size_multiplier_x2) >> 1; | ||
| } | ||
|
|
||
| +static int map_ls_table(struct bcm2835_isp_dev *dev, struct dma_buf *dmabuf, | ||
| + const struct bcm2835_isp_lens_shading *v4l2_ls) | ||
| +{ | ||
| + void *vcsm_handle; | ||
| + int ret; | ||
| + | ||
| + if (IS_ERR_OR_NULL(dmabuf)) | ||
| + return -EINVAL; | ||
| + | ||
| + /* | ||
| + * struct bcm2835_isp_lens_shading and struct | ||
| + * mmal_parameter_lens_shading_v2 match so that we can do a | ||
| + * simple memcpy here. | ||
| + * Only the dmabuf to the actual table needs any manipulation. | ||
| + */ | ||
| + memcpy(&dev->ls, v4l2_ls, sizeof(dev->ls)); | ||
| + ret = vc_sm_cma_import_dmabuf(dmabuf, &vcsm_handle); | ||
| + if (ret) { | ||
| + dma_buf_put(dmabuf); | ||
| + return ret; | ||
| + } | ||
| + | ||
| + dev->ls.mem_handle_table = vc_sm_cma_int_handle(vcsm_handle); | ||
| + dev->last_ls_dmabuf = dmabuf; | ||
| + | ||
| + vc_sm_cma_free(vcsm_handle); | ||
| + | ||
| + return 0; | ||
| +} | ||
| + | ||
| static int bcm2835_isp_s_ctrl(struct v4l2_ctrl *ctrl) | ||
| { | ||
| struct bcm2835_isp_dev *dev = | ||
| @@ -754,44 +786,27 @@ static int bcm2835_isp_s_ctrl(struct v4l | ||
| case V4L2_CID_USER_BCM2835_ISP_LENS_SHADING: | ||
| { | ||
| struct bcm2835_isp_lens_shading *v4l2_ls; | ||
| - struct mmal_parameter_lens_shading_v2 ls; | ||
| - struct dma_buf *dmabuf; | ||
| - void *vcsm_handle; | ||
|
|
||
| v4l2_ls = (struct bcm2835_isp_lens_shading *)ctrl->p_new.p_u8; | ||
| - /* | ||
| - * struct bcm2835_isp_lens_shading and struct | ||
| - * mmal_parameter_lens_shading_v2 match so that we can do a | ||
| - * simple memcpy here. | ||
| - * Only the dmabuf to the actual table needs any manipulation. | ||
| - */ | ||
| - memcpy(&ls, v4l2_ls, sizeof(ls)); | ||
| + struct dma_buf *dmabuf = dma_buf_get(v4l2_ls->dmabuf); | ||
|
|
||
| - dmabuf = dma_buf_get(v4l2_ls->dmabuf); | ||
| - if (IS_ERR_OR_NULL(dmabuf)) | ||
| - return -EINVAL; | ||
| - | ||
| - ret = vc_sm_cma_import_dmabuf(dmabuf, &vcsm_handle); | ||
| - if (ret) { | ||
| - dma_buf_put(dmabuf); | ||
| - return -EINVAL; | ||
| - } | ||
| + if (dmabuf != dev->last_ls_dmabuf) | ||
| + ret = map_ls_table(dev, dmabuf, v4l2_ls); | ||
|
|
||
| - ls.mem_handle_table = vc_sm_cma_int_handle(vcsm_handle); | ||
| - if (ls.mem_handle_table) | ||
| - /* The VPU will take a reference on the vcsm handle, | ||
| + if (!ret && dev->ls.mem_handle_table) | ||
| + /* | ||
| + * The VPU will take a reference on the vcsm handle, | ||
| * which in turn will retain a reference on the dmabuf. | ||
| * This code can therefore safely release all | ||
| * references to the buffer. | ||
| */ | ||
| - ret = set_isp_param(node, | ||
| - MMAL_PARAMETER_LENS_SHADING_OVERRIDE, | ||
| - &ls, | ||
| - sizeof(ls)); | ||
| + ret = | ||
| + set_isp_param(node, | ||
| + MMAL_PARAMETER_LENS_SHADING_OVERRIDE, | ||
| + &dev->ls, sizeof(dev->ls)); | ||
| else | ||
| ret = -EINVAL; | ||
|
|
||
| - vc_sm_cma_free(vcsm_handle); | ||
| dma_buf_put(dmabuf); | ||
| break; | ||
| } |
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