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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c')
-rw-r--r-- | drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c new file mode 100644 index 000000000..a72bed927 --- /dev/null +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c @@ -0,0 +1,314 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022 MediaTek Inc. + * Author: Ping-Hsun Wu <ping-hsun.wu@mediatek.com> + */ + +#include <linux/remoteproc.h> +#include <linux/remoteproc/mtk_scp.h> +#include "mtk-mdp3-vpu.h" +#include "mtk-mdp3-core.h" + +#define MDP_VPU_MESSAGE_TIMEOUT 500U +#define vpu_alloc_size 0x600000 + +static inline struct mdp_dev *vpu_to_mdp(struct mdp_vpu_dev *vpu) +{ + return container_of(vpu, struct mdp_dev, vpu); +} + +static int mdp_vpu_shared_mem_alloc(struct mdp_vpu_dev *vpu) +{ + if (vpu->work && vpu->work_addr) + return 0; + + vpu->work = dma_alloc_coherent(scp_get_device(vpu->scp), vpu_alloc_size, + &vpu->work_addr, GFP_KERNEL); + + if (!vpu->work) + return -ENOMEM; + else + return 0; +} + +void mdp_vpu_shared_mem_free(struct mdp_vpu_dev *vpu) +{ + if (vpu->work && vpu->work_addr) + dma_free_coherent(scp_get_device(vpu->scp), vpu_alloc_size, + vpu->work, vpu->work_addr); +} + +static void mdp_vpu_ipi_handle_init_ack(void *data, unsigned int len, + void *priv) +{ + struct mdp_ipi_init_msg *msg = (struct mdp_ipi_init_msg *)data; + struct mdp_vpu_dev *vpu = + (struct mdp_vpu_dev *)(unsigned long)msg->drv_data; + + if (!vpu->work_size) + vpu->work_size = msg->work_size; + + vpu->status = msg->status; + complete(&vpu->ipi_acked); +} + +static void mdp_vpu_ipi_handle_deinit_ack(void *data, unsigned int len, + void *priv) +{ + struct mdp_ipi_deinit_msg *msg = (struct mdp_ipi_deinit_msg *)data; + struct mdp_vpu_dev *vpu = + (struct mdp_vpu_dev *)(unsigned long)msg->drv_data; + + vpu->status = msg->status; + complete(&vpu->ipi_acked); +} + +static void mdp_vpu_ipi_handle_frame_ack(void *data, unsigned int len, + void *priv) +{ + struct img_sw_addr *addr = (struct img_sw_addr *)data; + struct img_ipi_frameparam *param = + (struct img_ipi_frameparam *)(unsigned long)addr->va; + struct mdp_vpu_ctx *ctx = + (struct mdp_vpu_ctx *)(unsigned long)param->drv_data; + + if (param->state) { + struct mdp_dev *mdp = vpu_to_mdp(ctx->vpu_dev); + + dev_err(&mdp->pdev->dev, "VPU MDP failure:%d\n", param->state); + } + ctx->vpu_dev->status = param->state; + complete(&ctx->vpu_dev->ipi_acked); +} + +int mdp_vpu_register(struct mdp_dev *mdp) +{ + int err; + struct mtk_scp *scp = mdp->scp; + struct device *dev = &mdp->pdev->dev; + + err = scp_ipi_register(scp, SCP_IPI_MDP_INIT, + mdp_vpu_ipi_handle_init_ack, NULL); + if (err) { + dev_err(dev, "scp_ipi_register failed %d\n", err); + goto err_ipi_init; + } + err = scp_ipi_register(scp, SCP_IPI_MDP_DEINIT, + mdp_vpu_ipi_handle_deinit_ack, NULL); + if (err) { + dev_err(dev, "scp_ipi_register failed %d\n", err); + goto err_ipi_deinit; + } + err = scp_ipi_register(scp, SCP_IPI_MDP_FRAME, + mdp_vpu_ipi_handle_frame_ack, NULL); + if (err) { + dev_err(dev, "scp_ipi_register failed %d\n", err); + goto err_ipi_frame; + } + return 0; + +err_ipi_frame: + scp_ipi_unregister(scp, SCP_IPI_MDP_DEINIT); +err_ipi_deinit: + scp_ipi_unregister(scp, SCP_IPI_MDP_INIT); +err_ipi_init: + + return err; +} + +void mdp_vpu_unregister(struct mdp_dev *mdp) +{ + scp_ipi_unregister(mdp->scp, SCP_IPI_MDP_INIT); + scp_ipi_unregister(mdp->scp, SCP_IPI_MDP_DEINIT); + scp_ipi_unregister(mdp->scp, SCP_IPI_MDP_FRAME); +} + +static int mdp_vpu_sendmsg(struct mdp_vpu_dev *vpu, enum scp_ipi_id id, + void *buf, unsigned int len) +{ + struct mdp_dev *mdp = vpu_to_mdp(vpu); + unsigned int t = MDP_VPU_MESSAGE_TIMEOUT; + int ret; + + if (!vpu->scp) { + dev_dbg(&mdp->pdev->dev, "vpu scp is NULL"); + return -EINVAL; + } + ret = scp_ipi_send(vpu->scp, id, buf, len, 2000); + + if (ret) { + dev_err(&mdp->pdev->dev, "scp_ipi_send failed %d\n", ret); + return -EPERM; + } + ret = wait_for_completion_timeout(&vpu->ipi_acked, + msecs_to_jiffies(t)); + if (!ret) + ret = -ETIME; + else if (vpu->status) + ret = -EINVAL; + else + ret = 0; + return ret; +} + +int mdp_vpu_dev_init(struct mdp_vpu_dev *vpu, struct mtk_scp *scp, + struct mutex *lock) +{ + struct mdp_ipi_init_msg msg = { + .drv_data = (unsigned long)vpu, + }; + size_t mem_size; + phys_addr_t pool; + const size_t pool_size = sizeof(struct mdp_config_pool); + struct mdp_dev *mdp = vpu_to_mdp(vpu); + int err; + + init_completion(&vpu->ipi_acked); + vpu->scp = scp; + vpu->lock = lock; + vpu->work_size = 0; + err = mdp_vpu_sendmsg(vpu, SCP_IPI_MDP_INIT, &msg, sizeof(msg)); + if (err) + goto err_work_size; + /* vpu work_size was set in mdp_vpu_ipi_handle_init_ack */ + + mem_size = vpu_alloc_size; + err = mdp_vpu_shared_mem_alloc(vpu); + if (err) { + dev_err(&mdp->pdev->dev, "VPU memory alloc fail!"); + goto err_mem_alloc; + } + + pool = ALIGN((uintptr_t)vpu->work + vpu->work_size, 8); + if (pool + pool_size - (uintptr_t)vpu->work > mem_size) { + dev_err(&mdp->pdev->dev, + "VPU memory insufficient: %zx + %zx > %zx", + vpu->work_size, pool_size, mem_size); + err = -ENOMEM; + goto err_mem_size; + } + + dev_dbg(&mdp->pdev->dev, + "VPU work:%pK pa:%pad sz:%zx pool:%pa sz:%zx (mem sz:%zx)", + vpu->work, &vpu->work_addr, vpu->work_size, + &pool, pool_size, mem_size); + vpu->pool = (struct mdp_config_pool *)(uintptr_t)pool; + msg.work_addr = vpu->work_addr; + msg.work_size = vpu->work_size; + err = mdp_vpu_sendmsg(vpu, SCP_IPI_MDP_INIT, &msg, sizeof(msg)); + if (err) + goto err_work_size; + + memset(vpu->pool, 0, sizeof(*vpu->pool)); + return 0; + +err_work_size: + switch (vpu->status) { + case -MDP_IPI_EBUSY: + err = -EBUSY; + break; + case -MDP_IPI_ENOMEM: + err = -ENOSPC; /* -ENOMEM */ + break; + } + return err; +err_mem_size: +err_mem_alloc: + return err; +} + +int mdp_vpu_dev_deinit(struct mdp_vpu_dev *vpu) +{ + struct mdp_ipi_deinit_msg msg = { + .drv_data = (unsigned long)vpu, + .work_addr = vpu->work_addr, + }; + + return mdp_vpu_sendmsg(vpu, SCP_IPI_MDP_DEINIT, &msg, sizeof(msg)); +} + +static struct img_config *mdp_config_get(struct mdp_vpu_dev *vpu, + enum mdp_config_id id, uint32_t *addr) +{ + struct img_config *config; + + if (id < 0 || id >= MDP_CONFIG_POOL_SIZE) + return ERR_PTR(-EINVAL); + + mutex_lock(vpu->lock); + vpu->pool->cfg_count[id]++; + config = &vpu->pool->configs[id]; + *addr = vpu->work_addr + ((uintptr_t)config - (uintptr_t)vpu->work); + mutex_unlock(vpu->lock); + + return config; +} + +static int mdp_config_put(struct mdp_vpu_dev *vpu, + enum mdp_config_id id, + const struct img_config *config) +{ + int err = 0; + + if (id < 0 || id >= MDP_CONFIG_POOL_SIZE) + return -EINVAL; + if (vpu->lock) + mutex_lock(vpu->lock); + if (!vpu->pool->cfg_count[id] || config != &vpu->pool->configs[id]) + err = -EINVAL; + else + vpu->pool->cfg_count[id]--; + if (vpu->lock) + mutex_unlock(vpu->lock); + return err; +} + +int mdp_vpu_ctx_init(struct mdp_vpu_ctx *ctx, struct mdp_vpu_dev *vpu, + enum mdp_config_id id) +{ + ctx->config = mdp_config_get(vpu, id, &ctx->inst_addr); + if (IS_ERR(ctx->config)) { + int err = PTR_ERR(ctx->config); + + ctx->config = NULL; + return err; + } + ctx->config_id = id; + ctx->vpu_dev = vpu; + return 0; +} + +int mdp_vpu_ctx_deinit(struct mdp_vpu_ctx *ctx) +{ + int err = mdp_config_put(ctx->vpu_dev, ctx->config_id, ctx->config); + + ctx->config_id = 0; + ctx->config = NULL; + ctx->inst_addr = 0; + return err; +} + +int mdp_vpu_process(struct mdp_vpu_ctx *ctx, struct img_ipi_frameparam *param) +{ + struct mdp_vpu_dev *vpu = ctx->vpu_dev; + struct mdp_dev *mdp = vpu_to_mdp(vpu); + struct img_sw_addr addr; + + if (!ctx->vpu_dev->work || !ctx->vpu_dev->work_addr) { + if (mdp_vpu_shared_mem_alloc(vpu)) { + dev_err(&mdp->pdev->dev, "VPU memory alloc fail!"); + return -ENOMEM; + } + } + memset((void *)ctx->vpu_dev->work, 0, ctx->vpu_dev->work_size); + memset(ctx->config, 0, sizeof(*ctx->config)); + param->config_data.va = (unsigned long)ctx->config; + param->config_data.pa = ctx->inst_addr; + param->drv_data = (unsigned long)ctx; + + memcpy((void *)ctx->vpu_dev->work, param, sizeof(*param)); + addr.pa = ctx->vpu_dev->work_addr; + addr.va = (uintptr_t)ctx->vpu_dev->work; + return mdp_vpu_sendmsg(ctx->vpu_dev, SCP_IPI_MDP_FRAME, + &addr, sizeof(addr)); +} |