DTM is the display topology manager. This is needed to communicate with
psp about the display configurations.
This patch adds
-Loading the firmware
-The functions and definitions for communication with the firmware
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 153 ++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 15 +++
drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | 3 +
drivers/gpu/drm/amd/amdgpu/psp_v10_0.c | 4 +
4 files changed, 175 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index ccce1b506a12..7192e7fba6dc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -942,6 +942,149 @@ static int psp_hdcp_terminate(struct psp_context *psp)
}
// HDCP end
+// DTM start
+static void psp_prep_dtm_ta_load_cmd_buf(struct psp_gfx_cmd_resp *cmd,
+ uint64_t dtm_ta_mc, uint64_t dtm_mc_shared,
+ uint32_t dtm_ta_size, uint32_t shared_size)
+{
+ cmd->cmd_id = GFX_CMD_ID_LOAD_TA;
+ cmd->cmd.cmd_load_ta.app_phy_addr_lo = lower_32_bits(dtm_ta_mc);
+ cmd->cmd.cmd_load_ta.app_phy_addr_hi = upper_32_bits(dtm_ta_mc);
+ cmd->cmd.cmd_load_ta.app_len = dtm_ta_size;
+
+ cmd->cmd.cmd_load_ta.cmd_buf_phy_addr_lo = lower_32_bits(dtm_mc_shared);
+ cmd->cmd.cmd_load_ta.cmd_buf_phy_addr_hi = upper_32_bits(dtm_mc_shared);
+ cmd->cmd.cmd_load_ta.cmd_buf_len = shared_size;
+}
+
+static int psp_dtm_init_shared_buf(struct psp_context *psp)
+{
+ int ret;
+
+ /*
+ * Allocate 16k memory aligned to 4k from Frame Buffer (local
+ * physical) for dtm ta <-> Driver
+ */
+ ret = amdgpu_bo_create_kernel(psp->adev, PSP_DTM_SHARED_MEM_SIZE,
+ PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
+ &psp->dtm_context.dtm_shared_bo,
+ &psp->dtm_context.dtm_shared_mc_addr,
+ &psp->dtm_context.dtm_shared_buf);
+
+ return ret;
+}
+
+static int psp_dtm_load(struct psp_context *psp)
+{
+ int ret;
+ struct psp_gfx_cmd_resp *cmd;
+
+ /*
+ * TODO: bypass the loading in sriov for now
+ */
+ if (amdgpu_sriov_vf(psp->adev))
+ return 0;
+
+ cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ memset(psp->fw_pri_buf, 0, PSP_1_MEG);
+ memcpy(psp->fw_pri_buf, psp->ta_dtm_start_addr, psp->ta_dtm_ucode_size);
+
+ psp_prep_dtm_ta_load_cmd_buf(cmd, psp->fw_pri_mc_addr,
+ psp->dtm_context.dtm_shared_mc_addr,
+ psp->ta_dtm_ucode_size, PSP_DTM_SHARED_MEM_SIZE);
+
+ ret = psp_cmd_submit_buf(psp, NULL, cmd,
+ psp->fence_buf_mc_addr);
+
+ if (!ret) {
+ printk("LOADEDDE dtm !!!!!1");
+ psp->dtm_context.dtm_initialized = 1;
+ psp->dtm_context.session_id = cmd->resp.session_id;
+ }
+
+ kfree(cmd);
+
+ return ret;
+}
+
+static int psp_dtm_initialize(struct psp_context *psp)
+{
+ int ret;
+
+ if (!psp->dtm_context.dtm_initialized) {
+ ret = psp_dtm_init_shared_buf(psp);
+ if (ret)
+ return ret;
+ }
+
+ ret = psp_dtm_load(psp);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void psp_prep_dtm_ta_invoke_cmd_buf(struct psp_gfx_cmd_resp *cmd,
+ uint32_t ta_cmd_id,
+ uint32_t dtm_session_id)
+{
+ cmd->cmd_id = GFX_CMD_ID_INVOKE_CMD;
+ cmd->cmd.cmd_invoke_cmd.session_id = dtm_session_id;
+ cmd->cmd.cmd_invoke_cmd.ta_cmd_id = ta_cmd_id;
+ /* Note: cmd_invoke_cmd.buf is not used for now */
+}
+
+int psp_dtm_invoke(struct psp_context *psp, uint32_t ta_cmd_id)
+{
+ int ret;
+ struct psp_gfx_cmd_resp *cmd;
+
+ /*
+ * TODO: bypass the loading in sriov for now
+ */
+ if (amdgpu_sriov_vf(psp->adev))
+ return 0;
+
+ cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ psp_prep_dtm_ta_invoke_cmd_buf(cmd, ta_cmd_id,
+ psp->dtm_context.session_id);
+
+ ret = psp_cmd_submit_buf(psp, NULL, cmd,
+ psp->fence_buf_mc_addr);
+
+ kfree(cmd);
+
+ return ret;
+}
+
+static int psp_dtm_terminate(struct psp_context *psp)
+{
+ int ret;
+
+ if (!psp->dtm_context.dtm_initialized)
+ return 0;
+
+ ret = psp_hdcp_unload(psp);
+ if (ret)
+ return ret;
+
+ psp->dtm_context.dtm_initialized = 0;
+
+ /* free hdcp shared memory */
+ amdgpu_bo_free_kernel(&psp->dtm_context.dtm_shared_bo,
+ &psp->dtm_context.dtm_shared_mc_addr,
+ &psp->dtm_context.dtm_shared_buf);
+
+ return 0;
+}
+// DTM end
+
static int psp_hw_start(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
@@ -1021,6 +1164,10 @@ static int psp_hw_start(struct psp_context *psp)
dev_err(psp->adev->dev,
"HDCP: Failed to initialize HDCP\n");
+ ret = psp_dtm_initialize(psp);
+ if (ret)
+ dev_err(psp->adev->dev,
+ "DTM: Failed to initialize DTM\n");
}
return 0;
@@ -1393,6 +1540,7 @@ static int psp_hw_fini(void *handle)
if (psp->adev->psp.ta_fw) {
psp_ras_terminate(psp);
psp_hdcp_terminate(psp);
+ psp_dtm_terminate(psp);
}
psp_ring_destroy(psp, PSP_RING_TYPE__KM);
@@ -1439,6 +1587,11 @@ static int psp_suspend(void *handle)
DRM_ERROR("Failed to terminate hdcp ta\n");
return ret;
}
+ ret = psp_dtm_terminate(psp);
+ if (ret) {
+ DRM_ERROR("Failed to terminate dtm ta\n");
+ return ret;
+ }
}
ret = psp_ring_stop(psp, PSP_RING_TYPE__KM);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index 6788e1601945..7dd9ae7dbbe4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -38,6 +38,7 @@
#define PSP_1_MEG 0x100000
#define PSP_TMR_SIZE 0x400000
#define PSP_HDCP_SHARED_MEM_SIZE 0x4000
+#define PSP_DTM_SHARED_MEM_SIZE 0x4000
#define PSP_SHARED_MEM_SIZE 0x4000
struct psp_context;
@@ -152,6 +153,14 @@ struct psp_hdcp_context {
void *hdcp_shared_buf;
};
+struct psp_dtm_context {
+ bool dtm_initialized;
+ uint32_t session_id;
+ struct amdgpu_bo *dtm_shared_bo;
+ uint64_t dtm_shared_mc_addr;
+ void *dtm_shared_buf;
+};
+
struct psp_context
{
struct amdgpu_device *adev;
@@ -221,9 +230,14 @@ struct psp_context
uint32_t ta_hdcp_ucode_size;
uint8_t *ta_hdcp_start_addr;
+ uint32_t ta_dtm_ucode_version;
+ uint32_t ta_dtm_ucode_size;
+ uint8_t *ta_dtm_start_addr;
+
struct psp_xgmi_context xgmi_context;
struct psp_ras_context ras;
struct psp_hdcp_context hdcp_context;
+ struct psp_dtm_context dtm_context;
struct mutex mutex;
};
@@ -296,6 +310,7 @@ int psp_ras_invoke(struct psp_context *psp, uint32_t ta_cmd_id);
int psp_ras_enable_features(struct psp_context *psp,
union ta_ras_cmd_input *info, bool enable);
int psp_hdcp_invoke(struct psp_context *psp, uint32_t ta_cmd_id);
+int psp_dtm_invoke(struct psp_context *psp, uint32_t ta_cmd_id);
int psp_rlc_autoload_start(struct psp_context *psp);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
index c2b593ab7495..410587b950f3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
@@ -111,6 +111,9 @@ struct ta_firmware_header_v1_0 {
uint32_t ta_hdcp_ucode_version;
uint32_t ta_hdcp_offset_bytes;
uint32_t ta_hdcp_size_bytes;
+ uint32_t ta_dtm_ucode_version;
+ uint32_t ta_dtm_offset_bytes;
+ uint32_t ta_dtm_size_bytes;
};
/* version_major=1, version_minor=0 */
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
index 348ec4e275f3..e93770133ad7 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
@@ -97,6 +97,10 @@ static int psp_v10_0_init_microcode(struct psp_context *psp)
adev->psp.ta_fw_version = le32_to_cpu(ta_hdr->header.ucode_version);
+ adev->psp.ta_dtm_ucode_version = le32_to_cpu(ta_hdr->ta_dtm_ucode_version);
+ adev->psp.ta_dtm_ucode_size = le32_to_cpu(ta_hdr->ta_dtm_size_bytes);
+ adev->psp.ta_dtm_start_addr = (uint8_t *)adev->psp.ta_hdcp_start_addr +
+ le32_to_cpu(ta_hdr->ta_dtm_offset_bytes);
}
return 0;
--
2.17.1
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