Message ID | 20220301100246.2153-5-moudy.ho@mediatek.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | Add mmsys and mutex support for MDP | expand |
Hi, Moudy: On Tue, 2022-03-01 at 18:02 +0800, Moudy Ho wrote: > Considering that some functions have timing requirements > in specific situation, this patch adds several interface that > operate registers by CMDQ. > > Signed-off-by: Moudy Ho <moudy.ho@mediatek.com> > Reviewed-by: AngeloGioacchino Del Regno < > angelogioacchino.delregno@collabora.com> > --- > drivers/soc/mediatek/mtk-mutex.c | 72 > +++++++++++++++++++++++++- > include/linux/soc/mediatek/mtk-mutex.h | 6 +++ > 2 files changed, 76 insertions(+), 2 deletions(-) > > diff --git a/drivers/soc/mediatek/mtk-mutex.c > b/drivers/soc/mediatek/mtk-mutex.c > index a6268ecde240..a45864183cd1 100644 > --- a/drivers/soc/mediatek/mtk-mutex.c > +++ b/drivers/soc/mediatek/mtk-mutex.c > @@ -7,10 +7,14 @@ > #include <linux/iopoll.h> > #include <linux/module.h> > #include <linux/of_device.h> > +#include <linux/of_address.h> > #include <linux/platform_device.h> > #include <linux/regmap.h> > #include <linux/soc/mediatek/mtk-mmsys.h> > #include <linux/soc/mediatek/mtk-mutex.h> > +#include <linux/soc/mediatek/mtk-cmdq.h> > + > +#define MTK_MUTEX_ENABLE BIT(0) > > #define MT2701_MUTEX0_MOD0 0x2c > #define MT2701_MUTEX0_SOF0 0x30 > @@ -173,6 +177,7 @@ struct mtk_mutex_data { > const unsigned int mutex_mdp_mod_mask; > const unsigned int mutex_mdp_sof_mask; > const bool no_clk; > + const bool has_gce_client_reg; > }; > > struct mtk_mutex_ctx { > @@ -181,6 +186,8 @@ struct mtk_mutex_ctx { > void __iomem *regs; > struct mtk_mutex mutex[10]; > const struct mtk_mutex_data *data; > + phys_addr_t addr; > + struct cmdq_client_reg cmdq_reg; > }; > > static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = { > @@ -374,6 +381,7 @@ static const struct mtk_mutex_data > mt8183_mutex_driver_data = { > .mutex_mdp_mod_mask = MT8183_MUTEX_MDP_MOD_MASK, > .mutex_mdp_sof_mask = MT8183_MUTEX_MDP_SOF_MASK, > .no_clk = true, > + .has_gce_client_reg = true, > }; > > static const struct mtk_mutex_data mt8186_mutex_driver_data = { > @@ -553,6 +561,25 @@ u32 mtk_mutex_get_mdp_mod(struct mtk_mutex > *mutex, enum mtk_mdp_comp_id id) > } > EXPORT_SYMBOL_GPL(mtk_mutex_get_mdp_mod); > > +void mtk_mutex_add_mod_by_cmdq(struct mtk_mutex *mutex, u32 mod, > + struct mmsys_cmdq_cmd *cmd) > +{ > + struct mtk_mutex_ctx *mtx = container_of(mutex, struct > mtk_mutex_ctx, > + mutex[mutex->id]); > + unsigned int offset; > + > + WARN_ON(&mtx->mutex[mutex->id] != mutex); > + > + offset = DISP_REG_MUTEX_MOD(mtx->data->mutex_mod_reg, mutex- > >id); > + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, mtx->addr + > offset, > + mod, mtx->data->mutex_mdp_mod_mask); > + > + offset = DISP_REG_MUTEX_SOF(mtx->data->mutex_sof_reg, mutex- > >id); > + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, mtx->addr + > offset, > + 0, mtx->data->mutex_mdp_sof_mask); > +} > +EXPORT_SYMBOL_GPL(mtk_mutex_add_mod_by_cmdq); > + > void mtk_mutex_enable(struct mtk_mutex *mutex) > { > struct mtk_mutex_ctx *mtx = container_of(mutex, struct > mtk_mutex_ctx, > @@ -564,6 +591,20 @@ void mtk_mutex_enable(struct mtk_mutex *mutex) > } > EXPORT_SYMBOL_GPL(mtk_mutex_enable); > > +void mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, > + struct mmsys_cmdq_cmd *cmd) There are 10 mutex and you could bind each pipeline to one mutex and always enable it. I think it's not necessary to frequently enable/disable mutex. > +{ > + struct mtk_mutex_ctx *mtx = container_of(mutex, struct > mtk_mutex_ctx, > + mutex[mutex->id]); > + > + WARN_ON(&mtx->mutex[mutex->id] != mutex); > + > + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, > + mtx->addr + DISP_REG_MUTEX_EN(mutex->id), > + MTK_MUTEX_ENABLE, MTK_MUTEX_ENABLE); > +} > +EXPORT_SYMBOL_GPL(mtk_mutex_enable_by_cmdq); > + > void mtk_mutex_disable(struct mtk_mutex *mutex) > { > struct mtk_mutex_ctx *mtx = container_of(mutex, struct > mtk_mutex_ctx, > @@ -575,6 +616,20 @@ void mtk_mutex_disable(struct mtk_mutex *mutex) > } > EXPORT_SYMBOL_GPL(mtk_mutex_disable); > > +void mtk_mutex_disable_by_cmdq(struct mtk_mutex *mutex, > + struct mmsys_cmdq_cmd *cmd) > +{ > + struct mtk_mutex_ctx *mtx = container_of(mutex, struct > mtk_mutex_ctx, > + mutex[mutex->id]); > + > + WARN_ON(&mtx->mutex[mutex->id] != mutex); > + > + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, > + mtx->addr + DISP_REG_MUTEX_EN(mutex->id), > + 0x0, MTK_MUTEX_ENABLE); > +} > +EXPORT_SYMBOL_GPL(mtk_mutex_disable_by_cmdq); > + > void mtk_mutex_acquire(struct mtk_mutex *mutex) > { > struct mtk_mutex_ctx *mtx = container_of(mutex, struct > mtk_mutex_ctx, > @@ -602,8 +657,8 @@ static int mtk_mutex_probe(struct platform_device > *pdev) > { > struct device *dev = &pdev->dev; > struct mtk_mutex_ctx *mtx; > - struct resource *regs; > - int i; > + struct resource *regs, addr; > + int i, ret; > > mtx = devm_kzalloc(dev, sizeof(*mtx), GFP_KERNEL); > if (!mtx) > @@ -623,6 +678,19 @@ static int mtk_mutex_probe(struct > platform_device *pdev) > } > } > > + if (of_address_to_resource(dev->of_node, 0, &addr) < 0) > + mtx->addr = 0L; > + else > + mtx->addr = addr.start; > + > + if (mtx->data->has_gce_client_reg) { > + ret = cmdq_dev_get_client_reg(dev, &mtx->cmdq_reg, 0); Add gce client reg in binding document [1] [1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/display/mediatek/mediatek,mutex.yaml?h=next-20220302 Regards, CK > + if (ret) { > + dev_err(dev, "No mediatek,gce-client-reg!\n"); > + return ret; > + } > + } > + > regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); > mtx->regs = devm_ioremap_resource(dev, regs); > if (IS_ERR(mtx->regs)) { > diff --git a/include/linux/soc/mediatek/mtk-mutex.h > b/include/linux/soc/mediatek/mtk-mutex.h > index b2608f4220ee..05de7ad4a124 100644 > --- a/include/linux/soc/mediatek/mtk-mutex.h > +++ b/include/linux/soc/mediatek/mtk-mutex.h > @@ -17,8 +17,14 @@ int mtk_mutex_prepare(struct mtk_mutex *mutex); > void mtk_mutex_add_comp(struct mtk_mutex *mutex, > enum mtk_ddp_comp_id id); > u32 mtk_mutex_get_mdp_mod(struct mtk_mutex *mutex, enum > mtk_mdp_comp_id id); > +void mtk_mutex_add_mod_by_cmdq(struct mtk_mutex *mutex, u32 mod, > + struct mmsys_cmdq_cmd *cmd); > void mtk_mutex_enable(struct mtk_mutex *mutex); > +void mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, > + struct mmsys_cmdq_cmd *cmd); > void mtk_mutex_disable(struct mtk_mutex *mutex); > +void mtk_mutex_disable_by_cmdq(struct mtk_mutex *mutex, > + struct mmsys_cmdq_cmd *cmd); > void mtk_mutex_remove_comp(struct mtk_mutex *mutex, > enum mtk_ddp_comp_id id); > void mtk_mutex_unprepare(struct mtk_mutex *mutex);
diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c index a6268ecde240..a45864183cd1 100644 --- a/drivers/soc/mediatek/mtk-mutex.c +++ b/drivers/soc/mediatek/mtk-mutex.c @@ -7,10 +7,14 @@ #include <linux/iopoll.h> #include <linux/module.h> #include <linux/of_device.h> +#include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/soc/mediatek/mtk-mmsys.h> #include <linux/soc/mediatek/mtk-mutex.h> +#include <linux/soc/mediatek/mtk-cmdq.h> + +#define MTK_MUTEX_ENABLE BIT(0) #define MT2701_MUTEX0_MOD0 0x2c #define MT2701_MUTEX0_SOF0 0x30 @@ -173,6 +177,7 @@ struct mtk_mutex_data { const unsigned int mutex_mdp_mod_mask; const unsigned int mutex_mdp_sof_mask; const bool no_clk; + const bool has_gce_client_reg; }; struct mtk_mutex_ctx { @@ -181,6 +186,8 @@ struct mtk_mutex_ctx { void __iomem *regs; struct mtk_mutex mutex[10]; const struct mtk_mutex_data *data; + phys_addr_t addr; + struct cmdq_client_reg cmdq_reg; }; static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = { @@ -374,6 +381,7 @@ static const struct mtk_mutex_data mt8183_mutex_driver_data = { .mutex_mdp_mod_mask = MT8183_MUTEX_MDP_MOD_MASK, .mutex_mdp_sof_mask = MT8183_MUTEX_MDP_SOF_MASK, .no_clk = true, + .has_gce_client_reg = true, }; static const struct mtk_mutex_data mt8186_mutex_driver_data = { @@ -553,6 +561,25 @@ u32 mtk_mutex_get_mdp_mod(struct mtk_mutex *mutex, enum mtk_mdp_comp_id id) } EXPORT_SYMBOL_GPL(mtk_mutex_get_mdp_mod); +void mtk_mutex_add_mod_by_cmdq(struct mtk_mutex *mutex, u32 mod, + struct mmsys_cmdq_cmd *cmd) +{ + struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, + mutex[mutex->id]); + unsigned int offset; + + WARN_ON(&mtx->mutex[mutex->id] != mutex); + + offset = DISP_REG_MUTEX_MOD(mtx->data->mutex_mod_reg, mutex->id); + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, mtx->addr + offset, + mod, mtx->data->mutex_mdp_mod_mask); + + offset = DISP_REG_MUTEX_SOF(mtx->data->mutex_sof_reg, mutex->id); + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, mtx->addr + offset, + 0, mtx->data->mutex_mdp_sof_mask); +} +EXPORT_SYMBOL_GPL(mtk_mutex_add_mod_by_cmdq); + void mtk_mutex_enable(struct mtk_mutex *mutex) { struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, @@ -564,6 +591,20 @@ void mtk_mutex_enable(struct mtk_mutex *mutex) } EXPORT_SYMBOL_GPL(mtk_mutex_enable); +void mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, + struct mmsys_cmdq_cmd *cmd) +{ + struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, + mutex[mutex->id]); + + WARN_ON(&mtx->mutex[mutex->id] != mutex); + + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, + mtx->addr + DISP_REG_MUTEX_EN(mutex->id), + MTK_MUTEX_ENABLE, MTK_MUTEX_ENABLE); +} +EXPORT_SYMBOL_GPL(mtk_mutex_enable_by_cmdq); + void mtk_mutex_disable(struct mtk_mutex *mutex) { struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, @@ -575,6 +616,20 @@ void mtk_mutex_disable(struct mtk_mutex *mutex) } EXPORT_SYMBOL_GPL(mtk_mutex_disable); +void mtk_mutex_disable_by_cmdq(struct mtk_mutex *mutex, + struct mmsys_cmdq_cmd *cmd) +{ + struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, + mutex[mutex->id]); + + WARN_ON(&mtx->mutex[mutex->id] != mutex); + + cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, + mtx->addr + DISP_REG_MUTEX_EN(mutex->id), + 0x0, MTK_MUTEX_ENABLE); +} +EXPORT_SYMBOL_GPL(mtk_mutex_disable_by_cmdq); + void mtk_mutex_acquire(struct mtk_mutex *mutex) { struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, @@ -602,8 +657,8 @@ static int mtk_mutex_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct mtk_mutex_ctx *mtx; - struct resource *regs; - int i; + struct resource *regs, addr; + int i, ret; mtx = devm_kzalloc(dev, sizeof(*mtx), GFP_KERNEL); if (!mtx) @@ -623,6 +678,19 @@ static int mtk_mutex_probe(struct platform_device *pdev) } } + if (of_address_to_resource(dev->of_node, 0, &addr) < 0) + mtx->addr = 0L; + else + mtx->addr = addr.start; + + if (mtx->data->has_gce_client_reg) { + ret = cmdq_dev_get_client_reg(dev, &mtx->cmdq_reg, 0); + if (ret) { + dev_err(dev, "No mediatek,gce-client-reg!\n"); + return ret; + } + } + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); mtx->regs = devm_ioremap_resource(dev, regs); if (IS_ERR(mtx->regs)) { diff --git a/include/linux/soc/mediatek/mtk-mutex.h b/include/linux/soc/mediatek/mtk-mutex.h index b2608f4220ee..05de7ad4a124 100644 --- a/include/linux/soc/mediatek/mtk-mutex.h +++ b/include/linux/soc/mediatek/mtk-mutex.h @@ -17,8 +17,14 @@ int mtk_mutex_prepare(struct mtk_mutex *mutex); void mtk_mutex_add_comp(struct mtk_mutex *mutex, enum mtk_ddp_comp_id id); u32 mtk_mutex_get_mdp_mod(struct mtk_mutex *mutex, enum mtk_mdp_comp_id id); +void mtk_mutex_add_mod_by_cmdq(struct mtk_mutex *mutex, u32 mod, + struct mmsys_cmdq_cmd *cmd); void mtk_mutex_enable(struct mtk_mutex *mutex); +void mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, + struct mmsys_cmdq_cmd *cmd); void mtk_mutex_disable(struct mtk_mutex *mutex); +void mtk_mutex_disable_by_cmdq(struct mtk_mutex *mutex, + struct mmsys_cmdq_cmd *cmd); void mtk_mutex_remove_comp(struct mtk_mutex *mutex, enum mtk_ddp_comp_id id); void mtk_mutex_unprepare(struct mtk_mutex *mutex);