| Message ID | 20200817082723.17458-1-stanimir.varbanov@linaro.org |
|---|---|
| Headers | show |
| Series | Venus - fix firmware load failure | expand |
On Mon 17 Aug 03:27 CDT 2020, Stanimir Varbanov wrote: > This adds a new SCM memprotect command to set virtual address ranges. > Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Please feel free to pick this through linux-media. Regards, Bjorn > Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> > --- > drivers/firmware/qcom_scm.c | 24 ++++++++++++++++++++++++ > drivers/firmware/qcom_scm.h | 1 + > include/linux/qcom_scm.h | 8 +++++++- > 3 files changed, 32 insertions(+), 1 deletion(-) > > diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c > index 0e7233a20f34..dec8dc42a6bc 100644 > --- a/drivers/firmware/qcom_scm.c > +++ b/drivers/firmware/qcom_scm.c > @@ -757,6 +757,30 @@ int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare) > } > EXPORT_SYMBOL(qcom_scm_iommu_secure_ptbl_init); > > +int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, > + u32 cp_nonpixel_start, > + u32 cp_nonpixel_size) > +{ > + int ret; > + struct qcom_scm_desc desc = { > + .svc = QCOM_SCM_SVC_MP, > + .cmd = QCOM_SCM_MP_VIDEO_VAR, > + .arginfo = QCOM_SCM_ARGS(4, QCOM_SCM_VAL, QCOM_SCM_VAL, > + QCOM_SCM_VAL, QCOM_SCM_VAL), > + .args[0] = cp_start, > + .args[1] = cp_size, > + .args[2] = cp_nonpixel_start, > + .args[3] = cp_nonpixel_size, > + .owner = ARM_SMCCC_OWNER_SIP, > + }; > + struct qcom_scm_res res; > + > + ret = qcom_scm_call(__scm->dev, &desc, &res); > + > + return ret ? : res.result[0]; > +} > +EXPORT_SYMBOL(qcom_scm_mem_protect_video_var); > + > static int __qcom_scm_assign_mem(struct device *dev, phys_addr_t mem_region, > size_t mem_sz, phys_addr_t src, size_t src_sz, > phys_addr_t dest, size_t dest_sz) > diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h > index d9ed670da222..14da834ac593 100644 > --- a/drivers/firmware/qcom_scm.h > +++ b/drivers/firmware/qcom_scm.h > @@ -97,6 +97,7 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc, > #define QCOM_SCM_MP_RESTORE_SEC_CFG 0x02 > #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_SIZE 0x03 > #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_INIT 0x04 > +#define QCOM_SCM_MP_VIDEO_VAR 0x08 > #define QCOM_SCM_MP_ASSIGN 0x16 > > #define QCOM_SCM_SVC_OCMEM 0x0f > diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h > index 3d6a24697761..ba45537f688b 100644 > --- a/include/linux/qcom_scm.h > +++ b/include/linux/qcom_scm.h > @@ -77,11 +77,13 @@ extern bool qcom_scm_restore_sec_cfg_available(void); > extern int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare); > extern int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size); > extern int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare); > +extern int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, > + u32 cp_nonpixel_start, > + u32 cp_nonpixel_size); > extern int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz, > unsigned int *src, > const struct qcom_scm_vmperm *newvm, > unsigned int dest_cnt); > - > extern bool qcom_scm_ocmem_lock_available(void); > extern int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset, > u32 size, u32 mode); > @@ -128,6 +130,10 @@ static inline int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size) > { return -ENODEV; } > static inline int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare) > { return -ENODEV; } > +extern inline int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, > + u32 cp_nonpixel_start, > + u32 cp_nonpixel_size) > + { return -ENODEV; } > static inline int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz, > unsigned int *src, const struct qcom_scm_vmperm *newvm, > unsigned int dest_cnt) { return -ENODEV; } > -- > 2.17.1 >