diff options
| author |   Rob Clark <robdclark@gmail.com> | 2019-08-23 05:16:33 -0700 |
|---|---|---|
| committer |   Rob Clark <robdclark@chromium.org> | 2019-10-07 08:17:18 -0700 |
| commit | b0a1614fb1f58520938968ebe1f4f11bcf34839e (patch) | |
| tree | 5f0e145ab0dc19cb904dc070e0d355085be6bce3 /include/linux/qcom_scm.h | |
| parent | dt-bindings: display: msm: gmu: add optional ocmem property (diff) | |
| download | wireguard-linux-b0a1614fb1f58520938968ebe1f4f11bcf34839e.tar.xz wireguard-linux-b0a1614fb1f58520938968ebe1f4f11bcf34839e.zip | |
firmware: qcom: scm: add OCMEM lock/unlock interface
Add support for the OCMEM lock/unlock interface that is needed by the
On Chip MEMory (OCMEM) that is present on some Snapdragon devices.
Signed-off-by: Rob Clark <robdclark@gmail.com>
[masneyb@onstation.org: ported to latest kernel; minor reformatting.]
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Gabriel Francisco <frc.gabrielgmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'include/linux/qcom_scm.h')
| -rw-r--r-- | include/linux/qcom_scm.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h index 2d5eff506e13..b49b734d662c 100644 --- a/include/linux/qcom_scm.h +++ b/include/linux/qcom_scm.h @@ -24,6 +24,16 @@ struct qcom_scm_vmperm { int perm; }; +enum qcom_scm_ocmem_client { + QCOM_SCM_OCMEM_UNUSED_ID = 0x0, + QCOM_SCM_OCMEM_GRAPHICS_ID, + QCOM_SCM_OCMEM_VIDEO_ID, + QCOM_SCM_OCMEM_LP_AUDIO_ID, + QCOM_SCM_OCMEM_SENSORS_ID, + QCOM_SCM_OCMEM_OTHER_OS_ID, + QCOM_SCM_OCMEM_DEBUG_ID, +}; + #define QCOM_SCM_VMID_HLOS 0x3 #define QCOM_SCM_VMID_MSS_MSA 0xF #define QCOM_SCM_VMID_WLAN 0x18 @@ -41,6 +51,11 @@ extern bool qcom_scm_is_available(void); extern bool qcom_scm_hdcp_available(void); extern int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp); +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); +extern int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id, u32 offset, + u32 size); extern bool qcom_scm_pas_supported(u32 peripheral); extern int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, size_t size); |