[CI-NOTIFY]: TCWG Bisect tcwg_kernel/llvm-release-aarch64-next-allmodconfig - Build # 48 - Successful!
Nick Desaulniers
ndesaulniers at google.com
Tue Dec 17 17:19:37 UTC 2019
Bhawanpreet, I suspect you're missing the header to include udelay in
drivers/gpu/drm/amd/amdgpu/../display/modules/hdcp/hdcp2_execution.c.
Can you please send a fix for this?
On Tue, Dec 17, 2019 at 7:07 AM <ci_notify at linaro.org> wrote:
>
> Successfully identified regression in *linux* in CI configuration tcwg_kernel/llvm-release-aarch64-next-allmodconfig. So far, this commit has regressed CI configurations:
> - tcwg_kernel/gnu-release-aarch64-next-allmodconfig
> - tcwg_kernel/llvm-master-aarch64-next-allyesconfig
> - tcwg_kernel/llvm-master-arm-next-allmodconfig
> - tcwg_kernel/llvm-release-aarch64-next-allmodconfig
> - tcwg_kernel/llvm-release-arm-next-allmodconfig
>
> Culprit:
> <cut>
> commit 51466b3fd2725bfb0de629f71c0854ff276d50ae
> Author: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
>
> drm/amd/display: Add execution and transition states for HDCP2.2
> </cut>
>
> First few errors in logs of first_bad:
> 00:03:03 drivers/gpu/drm/amd/amdgpu/../display/modules/hdcp/hdcp2_execution.c:162:4: error: implicit declaration of function 'udelay' [-Werror,-Wimplicit-function-declaration]
> 00:03:03 drivers/gpu/drm/amd/amdgpu/../display/modules/hdcp/hdcp2_execution.c:472:3: error: implicit declaration of function 'udelay' [-Werror,-Wimplicit-function-declaration]
> 00:03:03 make[4]: *** [drivers/gpu/drm/amd/amdgpu/../display/modules/hdcp/hdcp2_execution.o] Error 1
> 00:03:06 make[3]: *** [drivers/gpu/drm/amd/amdgpu] Error 2
> 00:03:26 make[2]: *** [drivers/gpu/drm] Error 2
> 00:03:26 make[1]: *** [drivers/gpu] Error 2
> 00:04:14 make: *** [drivers] Error 2
> Configuration details:
> rr[llvm_url]="https://github.com/llvm/llvm-project.git"
> rr[linux_url]="https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git"
> rr[linux_branch]="32b8acf85223448973ca0bf0ee8149a01410f3a0"
>
> Results regressed to (for first_bad == 51466b3fd2725bfb0de629f71c0854ff276d50ae)
> reset_artifacts:
> -10
> build_llvm:
> -1
> linux_n_obj:
> 18938
>
> from (for last_good == eff682f83c9c2030761e7536c5d97e1b20f71c15)
> reset_artifacts:
> -10
> build_llvm:
> -1
> linux_n_obj:
> 25911
> linux build successful:
> all
>
> Artifacts of first_bad build: https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/artifact/artifacts/build-51466b3fd2725bfb0de629f71c0854ff276d50ae/
> Artifacts of last_good build: https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/artifact/artifacts/build-eff682f83c9c2030761e7536c5d97e1b20f71c15/
> Build top page/logs: https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/
>
> Reproduce builds:
> <cut>
> mkdir investigate-linux-51466b3fd2725bfb0de629f71c0854ff276d50ae
> cd investigate-linux-51466b3fd2725bfb0de629f71c0854ff276d50ae
>
> git clone https://git.linaro.org/toolchain/jenkins-scripts
>
> mkdir -p artifacts/manifests
> curl -o artifacts/manifests/build-baseline.sh https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/artifact/artifacts/manifests/build-baseline.sh
> curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/artifact/artifacts/manifests/build-parameters.sh
> curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/artifact/artifacts/test.sh
> chmod +x artifacts/test.sh
>
> # Reproduce the baseline build (build all pre-requisites)
> ./jenkins-scripts/tcwg_kernel-build.sh @@ artifacts/manifests/build-baseline.sh
>
> cd linux
>
> # Reproduce first_bad build
> git checkout --detach 51466b3fd2725bfb0de629f71c0854ff276d50ae
> ../artifacts/test.sh
>
> # Reproduce last_good build
> git checkout --detach eff682f83c9c2030761e7536c5d97e1b20f71c15
> ../artifacts/test.sh
>
> cd ..
> </cut>
>
> History of pending regressions and results: https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/ci/tcwg_kernel/llvm-release-aarch64-next-allmodconfig
>
> Artifacts: https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/artifact/artifacts/
> Build log: https://ci.linaro.org/job/tcwg_kernel-bisect-llvm-release-aarch64-next-allmodconfig/48/consoleText
>
> Full commit:
> <cut>
> commit 51466b3fd2725bfb0de629f71c0854ff276d50ae
> Author: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
> Date: Wed Sep 18 11:18:15 2019 -0400
>
> drm/amd/display: Add execution and transition states for HDCP2.2
>
> The module works like a state machine
>
> +-------------+
> ------> | Execution.c | ------
> | +-------------+ |
> | V
> +----+ +--------+ +--------------+
> | DM | -----> | Hdcp.c | <------------ | Transition.c |
> +----+ <----- +--------+ +--------------+
>
> This patch adds the execution and transition files for 2.2
>
> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
> Reviewed-by: Harry Wentland <harry.wentland at amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> drivers/gpu/drm/amd/display/modules/hdcp/Makefile | 3 +-
> drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c | 86 +-
> drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h | 127 +++
> .../drm/amd/display/modules/hdcp/hdcp2_execution.c | 881 +++++++++++++++++++++
> .../amd/display/modules/hdcp/hdcp2_transition.c | 674 ++++++++++++++++
> drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h | 2 +
> 6 files changed, 1764 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/Makefile b/drivers/gpu/drm/amd/display/modules/hdcp/Makefile
> index 1c3c6d47973a..904424da01b5 100644
> --- a/drivers/gpu/drm/amd/display/modules/hdcp/Makefile
> +++ b/drivers/gpu/drm/amd/display/modules/hdcp/Makefile
> @@ -24,7 +24,8 @@
> #
>
> HDCP = hdcp_ddc.o hdcp_log.o hdcp_psp.o hdcp.o \
> - hdcp1_execution.o hdcp1_transition.o
> + hdcp1_execution.o hdcp1_transition.o \
> + hdcp2_execution.o hdcp2_transition.o
>
> AMD_DAL_HDCP = $(addprefix $(AMDDALPATH)/modules/hdcp/,$(HDCP))
> #$(info ************ DAL-HDCP_MAKEFILE ************)
> diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
> index d7ac445dec6f..a74812977963 100644
> --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
> +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
> @@ -37,24 +37,52 @@ static void push_error_status(struct mod_hdcp *hdcp,
> HDCP_ERROR_TRACE(hdcp, status);
> }
>
> - hdcp->connection.hdcp1_retry_count++;
> + if (is_hdcp1(hdcp)) {
> + hdcp->connection.hdcp1_retry_count++;
> + } else if (is_hdcp2(hdcp)) {
> + hdcp->connection.hdcp2_retry_count++;
> + }
> }
>
> static uint8_t is_cp_desired_hdcp1(struct mod_hdcp *hdcp)
> {
> - int i, display_enabled = 0;
> + int i, is_auth_needed = 0;
>
> - /* if all displays on the link are disabled, hdcp is not desired */
> + /* if all displays on the link don't need authentication,
> + * hdcp is not desired
> + */
> for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
> if (hdcp->connection.displays[i].state != MOD_HDCP_DISPLAY_INACTIVE &&
> !hdcp->connection.displays[i].adjust.disable) {
> - display_enabled = 1;
> + is_auth_needed = 1;
> break;
> }
> }
>
> return (hdcp->connection.hdcp1_retry_count < MAX_NUM_OF_ATTEMPTS) &&
> - display_enabled && !hdcp->connection.link.adjust.hdcp1.disable;
> + is_auth_needed &&
> + !hdcp->connection.link.adjust.hdcp1.disable;
> +}
> +
> +static uint8_t is_cp_desired_hdcp2(struct mod_hdcp *hdcp)
> +{
> + int i, is_auth_needed = 0;
> +
> + /* if all displays on the link don't need authentication,
> + * hdcp is not desired
> + */
> + for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
> + if (hdcp->connection.displays[i].state != MOD_HDCP_DISPLAY_INACTIVE &&
> + !hdcp->connection.displays[i].adjust.disable) {
> + is_auth_needed = 1;
> + break;
> + }
> + }
> +
> + return (hdcp->connection.hdcp2_retry_count < MAX_NUM_OF_ATTEMPTS) &&
> + is_auth_needed &&
> + !hdcp->connection.link.adjust.hdcp2.disable &&
> + !hdcp->connection.is_hdcp2_revoked;
> }
>
> static enum mod_hdcp_status execution(struct mod_hdcp *hdcp,
> @@ -82,6 +110,11 @@ static enum mod_hdcp_status execution(struct mod_hdcp *hdcp,
> } else if (is_in_hdcp1_dp_states(hdcp)) {
> status = mod_hdcp_hdcp1_dp_execution(hdcp,
> event_ctx, &input->hdcp1);
> + } else if (is_in_hdcp2_states(hdcp)) {
> + status = mod_hdcp_hdcp2_execution(hdcp, event_ctx, &input->hdcp2);
> + } else if (is_in_hdcp2_dp_states(hdcp)) {
> + status = mod_hdcp_hdcp2_dp_execution(hdcp,
> + event_ctx, &input->hdcp2);
> }
> out:
> return status;
> @@ -99,7 +132,10 @@ static enum mod_hdcp_status transition(struct mod_hdcp *hdcp,
>
> if (is_in_initialized_state(hdcp)) {
> if (is_dp_hdcp(hdcp))
> - if (is_cp_desired_hdcp1(hdcp)) {
> + if (is_cp_desired_hdcp2(hdcp)) {
> + callback_in_ms(0, output);
> + set_state_id(hdcp, output, D2_A0_DETERMINE_RX_HDCP_CAPABLE);
> + } else if (is_cp_desired_hdcp1(hdcp)) {
> callback_in_ms(0, output);
> set_state_id(hdcp, output, D1_A0_DETERMINE_RX_HDCP_CAPABLE);
> } else {
> @@ -107,7 +143,10 @@ static enum mod_hdcp_status transition(struct mod_hdcp *hdcp,
> set_state_id(hdcp, output, HDCP_CP_NOT_DESIRED);
> }
> else if (is_hdmi_dvi_sl_hdcp(hdcp))
> - if (is_cp_desired_hdcp1(hdcp)) {
> + if (is_cp_desired_hdcp2(hdcp)) {
> + callback_in_ms(0, output);
> + set_state_id(hdcp, output, H2_A0_KNOWN_HDCP2_CAPABLE_RX);
> + } else if (is_cp_desired_hdcp1(hdcp)) {
> callback_in_ms(0, output);
> set_state_id(hdcp, output, H1_A0_WAIT_FOR_ACTIVE_RX);
> } else {
> @@ -126,6 +165,12 @@ static enum mod_hdcp_status transition(struct mod_hdcp *hdcp,
> } else if (is_in_hdcp1_dp_states(hdcp)) {
> status = mod_hdcp_hdcp1_dp_transition(hdcp,
> event_ctx, &input->hdcp1, output);
> + } else if (is_in_hdcp2_states(hdcp)) {
> + status = mod_hdcp_hdcp2_transition(hdcp,
> + event_ctx, &input->hdcp2, output);
> + } else if (is_in_hdcp2_dp_states(hdcp)) {
> + status = mod_hdcp_hdcp2_dp_transition(hdcp,
> + event_ctx, &input->hdcp2, output);
> } else {
> status = MOD_HDCP_STATUS_INVALID_STATE;
> }
> @@ -139,9 +184,13 @@ static enum mod_hdcp_status reset_authentication(struct mod_hdcp *hdcp,
> enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> if (is_hdcp1(hdcp)) {
> - if (hdcp->auth.trans_input.hdcp1.create_session != UNKNOWN)
> + if (hdcp->auth.trans_input.hdcp1.create_session != UNKNOWN) {
> + /* TODO - update psp to unify create session failure
> + * recovery between hdcp1 and 2.
> + */
> mod_hdcp_hdcp1_destroy_session(hdcp);
>
> + }
> if (hdcp->auth.trans_input.hdcp1.add_topology == PASS) {
> status = mod_hdcp_remove_display_topology(hdcp);
> if (status != MOD_HDCP_STATUS_SUCCESS) {
> @@ -154,6 +203,27 @@ static enum mod_hdcp_status reset_authentication(struct mod_hdcp *hdcp,
> memset(&hdcp->auth, 0, sizeof(struct mod_hdcp_authentication));
> memset(&hdcp->state, 0, sizeof(struct mod_hdcp_state));
> set_state_id(hdcp, output, HDCP_INITIALIZED);
> + } else if (is_hdcp2(hdcp)) {
> + if (hdcp->auth.trans_input.hdcp2.create_session == PASS) {
> + status = mod_hdcp_hdcp2_destroy_session(hdcp);
> + if (status != MOD_HDCP_STATUS_SUCCESS) {
> + output->callback_needed = 0;
> + output->watchdog_timer_needed = 0;
> + goto out;
> + }
> + }
> + if (hdcp->auth.trans_input.hdcp2.add_topology == PASS) {
> + status = mod_hdcp_remove_display_topology(hdcp);
> + if (status != MOD_HDCP_STATUS_SUCCESS) {
> + output->callback_needed = 0;
> + output->watchdog_timer_needed = 0;
> + goto out;
> + }
> + }
> + HDCP_TOP_RESET_AUTH_TRACE(hdcp);
> + memset(&hdcp->auth, 0, sizeof(struct mod_hdcp_authentication));
> + memset(&hdcp->state, 0, sizeof(struct mod_hdcp_state));
> + set_state_id(hdcp, output, HDCP_INITIALIZED);
> } else if (is_in_cp_not_desired_state(hdcp)) {
> status = mod_hdcp_remove_display_topology(hdcp);
> if (status != MOD_HDCP_STATUS_SUCCESS) {
> diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h
> index d83f0ab1cadb..9887c5ea6d5f 100644
> --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h
> +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h
> @@ -44,11 +44,13 @@
> #define BINFO_MAX_DEVS_EXCEEDED_MASK_DP 0x0080
> #define BINFO_MAX_CASCADE_EXCEEDED_MASK_DP 0x0800
>
> +#define VERSION_HDCP2_MASK 0x04
> #define RXSTATUS_MSG_SIZE_MASK 0x03FF
> #define RXSTATUS_READY_MASK 0x0400
> #define RXSTATUS_REAUTH_REQUEST_MASK 0x0800
> #define RXIDLIST_DEVICE_COUNT_LOWER_MASK 0xf0
> #define RXIDLIST_DEVICE_COUNT_UPPER_MASK 0x01
> +#define RXCAPS_BYTE2_HDCP2_VERSION_DP 0x02
> #define RXCAPS_BYTE0_HDCP_CAPABLE_MASK_DP 0x02
> #define RXSTATUS_READY_MASK_DP 0x0001
> #define RXSTATUS_H_P_AVAILABLE_MASK_DP 0x0002
> @@ -92,8 +94,52 @@ struct mod_hdcp_transition_input_hdcp1 {
> uint8_t stream_encryption_dp;
> };
>
> +struct mod_hdcp_transition_input_hdcp2 {
> + uint8_t hdcp2version_read;
> + uint8_t hdcp2_capable_check;
> + uint8_t add_topology;
> + uint8_t create_session;
> + uint8_t ake_init_prepare;
> + uint8_t ake_init_write;
> + uint8_t rxstatus_read;
> + uint8_t ake_cert_available;
> + uint8_t ake_cert_read;
> + uint8_t ake_cert_validation;
> + uint8_t stored_km_write;
> + uint8_t no_stored_km_write;
> + uint8_t h_prime_available;
> + uint8_t h_prime_read;
> + uint8_t pairing_available;
> + uint8_t pairing_info_read;
> + uint8_t h_prime_validation;
> + uint8_t lc_init_prepare;
> + uint8_t lc_init_write;
> + uint8_t l_prime_available_poll;
> + uint8_t l_prime_read;
> + uint8_t l_prime_validation;
> + uint8_t eks_prepare;
> + uint8_t eks_write;
> + uint8_t enable_encryption;
> + uint8_t reauth_request_check;
> + uint8_t rx_id_list_read;
> + uint8_t device_count_check;
> + uint8_t rx_id_list_validation;
> + uint8_t repeater_auth_ack_write;
> + uint8_t prepare_stream_manage;
> + uint8_t stream_manage_write;
> + uint8_t stream_ready_available;
> + uint8_t stream_ready_read;
> + uint8_t stream_ready_validation;
> +
> + uint8_t rx_caps_read_dp;
> + uint8_t content_stream_type_write;
> + uint8_t link_integrity_check_dp;
> + uint8_t stream_encryption_dp;
> +};
> +
> union mod_hdcp_transition_input {
> struct mod_hdcp_transition_input_hdcp1 hdcp1;
> + struct mod_hdcp_transition_input_hdcp2 hdcp2;
> };
>
> struct mod_hdcp_message_hdcp1 {
> @@ -150,8 +196,10 @@ struct mod_hdcp_connection {
> struct mod_hdcp_display displays[MAX_NUM_OF_DISPLAYS];
> uint8_t is_repeater;
> uint8_t is_km_stored;
> + uint8_t is_hdcp2_revoked;
> struct mod_hdcp_trace trace;
> uint8_t hdcp1_retry_count;
> + uint8_t hdcp2_retry_count;
> };
>
> /* contains values per authentication cycle */
> @@ -219,6 +267,50 @@ enum mod_hdcp_hdcp1_dp_state_id {
> HDCP1_DP_STATE_END = D1_A7_READ_KSV_LIST,
> };
>
> +enum mod_hdcp_hdcp2_state_id {
> + HDCP2_STATE_START = HDCP1_DP_STATE_END,
> + H2_A0_KNOWN_HDCP2_CAPABLE_RX,
> + H2_A1_SEND_AKE_INIT,
> + H2_A1_VALIDATE_AKE_CERT,
> + H2_A1_SEND_NO_STORED_KM,
> + H2_A1_READ_H_PRIME,
> + H2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME,
> + H2_A1_SEND_STORED_KM,
> + H2_A1_VALIDATE_H_PRIME,
> + H2_A2_LOCALITY_CHECK,
> + H2_A3_EXCHANGE_KS_AND_TEST_FOR_REPEATER,
> + H2_ENABLE_ENCRYPTION,
> + H2_A5_AUTHENTICATED,
> + H2_A6_WAIT_FOR_RX_ID_LIST,
> + H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK,
> + H2_A9_SEND_STREAM_MANAGEMENT,
> + H2_A9_VALIDATE_STREAM_READY,
> + HDCP2_STATE_END = H2_A9_VALIDATE_STREAM_READY,
> +};
> +
> +enum mod_hdcp_hdcp2_dp_state_id {
> + HDCP2_DP_STATE_START = HDCP2_STATE_END,
> + D2_A0_DETERMINE_RX_HDCP_CAPABLE,
> + D2_A1_SEND_AKE_INIT,
> + D2_A1_VALIDATE_AKE_CERT,
> + D2_A1_SEND_NO_STORED_KM,
> + D2_A1_READ_H_PRIME,
> + D2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME,
> + D2_A1_SEND_STORED_KM,
> + D2_A1_VALIDATE_H_PRIME,
> + D2_A2_LOCALITY_CHECK,
> + D2_A34_EXCHANGE_KS_AND_TEST_FOR_REPEATER,
> + D2_SEND_CONTENT_STREAM_TYPE,
> + D2_ENABLE_ENCRYPTION,
> + D2_A5_AUTHENTICATED,
> + D2_A6_WAIT_FOR_RX_ID_LIST,
> + D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK,
> + D2_A9_SEND_STREAM_MANAGEMENT,
> + D2_A9_VALIDATE_STREAM_READY,
> + HDCP2_DP_STATE_END = D2_A9_VALIDATE_STREAM_READY,
> + HDCP_STATE_END = HDCP2_DP_STATE_END,
> +};
> +
> /* hdcp1 executions and transitions */
> typedef enum mod_hdcp_status (*mod_hdcp_action)(struct mod_hdcp *hdcp);
> uint8_t mod_hdcp_execute_and_set(
> @@ -239,6 +331,22 @@ enum mod_hdcp_status mod_hdcp_hdcp1_dp_transition(struct mod_hdcp *hdcp,
> struct mod_hdcp_transition_input_hdcp1 *input,
> struct mod_hdcp_output *output);
>
> +/* hdcp2 executions and transitions */
> +enum mod_hdcp_status mod_hdcp_hdcp2_execution(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input);
> +enum mod_hdcp_status mod_hdcp_hdcp2_dp_execution(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input);
> +enum mod_hdcp_status mod_hdcp_hdcp2_transition(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input,
> + struct mod_hdcp_output *output);
> +enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input,
> + struct mod_hdcp_output *output);
> +
> /* log functions */
> void mod_hdcp_dump_binary_message(uint8_t *msg, uint32_t msg_size,
> uint8_t *buf, uint32_t buf_size);
> @@ -289,6 +397,7 @@ enum mod_hdcp_status mod_hdcp_read_binfo(struct mod_hdcp *hdcp);
> enum mod_hdcp_status mod_hdcp_write_aksv(struct mod_hdcp *hdcp);
> enum mod_hdcp_status mod_hdcp_write_ainfo(struct mod_hdcp *hdcp);
> enum mod_hdcp_status mod_hdcp_write_an(struct mod_hdcp *hdcp);
> +enum mod_hdcp_status mod_hdcp_read_hdcp2version(struct mod_hdcp *hdcp);
> enum mod_hdcp_status mod_hdcp_read_rxcaps(struct mod_hdcp *hdcp);
> enum mod_hdcp_status mod_hdcp_read_rxstatus(struct mod_hdcp *hdcp);
> enum mod_hdcp_status mod_hdcp_read_ake_cert(struct mod_hdcp *hdcp);
> @@ -352,11 +461,28 @@ static inline uint8_t is_in_hdcp1_dp_states(struct mod_hdcp *hdcp)
> current_state(hdcp) <= HDCP1_DP_STATE_END);
> }
>
> +static inline uint8_t is_in_hdcp2_states(struct mod_hdcp *hdcp)
> +{
> + return (current_state(hdcp) > HDCP2_STATE_START &&
> + current_state(hdcp) <= HDCP2_STATE_END);
> +}
> +
> +static inline uint8_t is_in_hdcp2_dp_states(struct mod_hdcp *hdcp)
> +{
> + return (current_state(hdcp) > HDCP2_DP_STATE_START &&
> + current_state(hdcp) <= HDCP2_DP_STATE_END);
> +}
> +
> static inline uint8_t is_hdcp1(struct mod_hdcp *hdcp)
> {
> return (is_in_hdcp1_states(hdcp) || is_in_hdcp1_dp_states(hdcp));
> }
>
> +static inline uint8_t is_hdcp2(struct mod_hdcp *hdcp)
> +{
> + return (is_in_hdcp2_states(hdcp) || is_in_hdcp2_dp_states(hdcp));
> +}
> +
> static inline uint8_t is_in_cp_not_desired_state(struct mod_hdcp *hdcp)
> {
> return current_state(hdcp) == HDCP_CP_NOT_DESIRED;
> @@ -481,6 +607,7 @@ static inline struct mod_hdcp_display *get_empty_display_container(
> static inline void reset_retry_counts(struct mod_hdcp *hdcp)
> {
> hdcp->connection.hdcp1_retry_count = 0;
> + hdcp->connection.hdcp2_retry_count = 0;
> }
>
> #endif /* HDCP_H_ */
> diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c
> new file mode 100644
> index 000000000000..c93c8098d972
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c
> @@ -0,0 +1,881 @@
> +/*
> + * Copyright 2018 Advanced Micro Devices, Inc.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: AMD
> + *
> + */
> +
> +#include "hdcp.h"
> +
> +static inline enum mod_hdcp_status check_receiver_id_list_ready(struct mod_hdcp *hdcp)
> +{
> + uint8_t is_ready = 0;
> +
> + if (is_dp_hdcp(hdcp))
> + is_ready = (hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_READY_MASK_DP) ? 1 : 0;
> + else
> + is_ready = ((hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_READY_MASK) &&
> + (hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_MSG_SIZE_MASK)) ? 1 : 0;
> + return is_ready ? MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_NOT_READY;
> +}
> +
> +static inline enum mod_hdcp_status check_hdcp2_capable(struct mod_hdcp *hdcp)
> +{
> + enum mod_hdcp_status status;
> +
> + if (is_dp_hdcp(hdcp))
> + status = ((hdcp->auth.msg.hdcp2.rxcaps_dp[2] &
> + RXCAPS_BYTE0_HDCP_CAPABLE_MASK_DP) &&
> + (hdcp->auth.msg.hdcp2.rxcaps_dp[0] ==
> + RXCAPS_BYTE2_HDCP2_VERSION_DP)) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE;
> + else
> + status = (hdcp->auth.msg.hdcp2.hdcp2version_hdmi & VERSION_HDCP2_MASK) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE;
> + return status;
> +}
> +
> +static inline enum mod_hdcp_status check_reauthentication_request(
> + struct mod_hdcp *hdcp)
> +{
> + uint8_t ret = 0;
> +
> + if (is_dp_hdcp(hdcp))
> + ret = (hdcp->auth.msg.hdcp2.rxstatus &
> + RXSTATUS_REAUTH_REQUEST_MASK_DP) ?
> + MOD_HDCP_STATUS_HDCP2_REAUTH_REQUEST :
> + MOD_HDCP_STATUS_SUCCESS;
> + else
> + ret = (hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_REAUTH_REQUEST_MASK) ?
> + MOD_HDCP_STATUS_HDCP2_REAUTH_REQUEST :
> + MOD_HDCP_STATUS_SUCCESS;
> + return ret;
> +}
> +
> +static inline enum mod_hdcp_status check_link_integrity_failure_dp(
> + struct mod_hdcp *hdcp)
> +{
> + return (hdcp->auth.msg.hdcp2.rxstatus &
> + RXSTATUS_LINK_INTEGRITY_FAILURE_MASK_DP) ?
> + MOD_HDCP_STATUS_HDCP2_REAUTH_LINK_INTEGRITY_FAILURE :
> + MOD_HDCP_STATUS_SUCCESS;
> +}
> +
> +static enum mod_hdcp_status check_ake_cert_available(struct mod_hdcp *hdcp)
> +{
> + enum mod_hdcp_status status;
> + uint16_t size;
> +
> + if (is_dp_hdcp(hdcp)) {
> + status = MOD_HDCP_STATUS_SUCCESS;
> + } else {
> + status = mod_hdcp_read_rxstatus(hdcp);
> + if (status == MOD_HDCP_STATUS_SUCCESS) {
> + size = hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_MSG_SIZE_MASK;
> + status = (size == sizeof(hdcp->auth.msg.hdcp2.ake_cert)) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_AKE_CERT_PENDING;
> + }
> + }
> + return status;
> +}
> +
> +static enum mod_hdcp_status check_h_prime_available(struct mod_hdcp *hdcp)
> +{
> + enum mod_hdcp_status status;
> + uint8_t size;
> +
> + status = mod_hdcp_read_rxstatus(hdcp);
> + if (status != MOD_HDCP_STATUS_SUCCESS)
> + goto out;
> +
> + if (is_dp_hdcp(hdcp)) {
> + status = (hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_H_P_AVAILABLE_MASK_DP) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_H_PRIME_PENDING;
> + } else {
> + size = hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_MSG_SIZE_MASK;
> + status = (size == sizeof(hdcp->auth.msg.hdcp2.ake_h_prime)) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_H_PRIME_PENDING;
> + }
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status check_pairing_info_available(struct mod_hdcp *hdcp)
> +{
> + enum mod_hdcp_status status;
> + uint8_t size;
> +
> + status = mod_hdcp_read_rxstatus(hdcp);
> + if (status != MOD_HDCP_STATUS_SUCCESS)
> + goto out;
> +
> + if (is_dp_hdcp(hdcp)) {
> + status = (hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_PAIRING_AVAILABLE_MASK_DP) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_PAIRING_INFO_PENDING;
> + } else {
> + size = hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_MSG_SIZE_MASK;
> + status = (size == sizeof(hdcp->auth.msg.hdcp2.ake_pairing_info)) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_PAIRING_INFO_PENDING;
> + }
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status poll_l_prime_available(struct mod_hdcp *hdcp)
> +{
> + enum mod_hdcp_status status;
> + uint8_t size;
> + uint16_t max_wait = 20000; // units of us
> + uint16_t num_polls = 5;
> + uint16_t wait_time = max_wait / num_polls;
> +
> + if (is_dp_hdcp(hdcp))
> + status = MOD_HDCP_STATUS_INVALID_OPERATION;
> + else
> + for (; num_polls; num_polls--) {
> + udelay(wait_time);
> +
> + status = mod_hdcp_read_rxstatus(hdcp);
> + if (status != MOD_HDCP_STATUS_SUCCESS)
> + break;
> +
> + size = hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_MSG_SIZE_MASK;
> + status = (size == sizeof(hdcp->auth.msg.hdcp2.lc_l_prime)) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_L_PRIME_PENDING;
> + if (status == MOD_HDCP_STATUS_SUCCESS)
> + break;
> + }
> + return status;
> +}
> +
> +static enum mod_hdcp_status check_stream_ready_available(struct mod_hdcp *hdcp)
> +{
> + enum mod_hdcp_status status;
> + uint8_t size;
> +
> + if (is_dp_hdcp(hdcp)) {
> + status = MOD_HDCP_STATUS_INVALID_OPERATION;
> + } else {
> + status = mod_hdcp_read_rxstatus(hdcp);
> + if (status != MOD_HDCP_STATUS_SUCCESS)
> + goto out;
> + size = hdcp->auth.msg.hdcp2.rxstatus & RXSTATUS_MSG_SIZE_MASK;
> + status = (size == sizeof(hdcp->auth.msg.hdcp2.repeater_auth_stream_ready)) ?
> + MOD_HDCP_STATUS_SUCCESS :
> + MOD_HDCP_STATUS_HDCP2_STREAM_READY_PENDING;
> + }
> +out:
> + return status;
> +}
> +
> +static inline uint8_t get_device_count(struct mod_hdcp *hdcp)
> +{
> + return ((hdcp->auth.msg.hdcp2.rx_id_list[2] & RXIDLIST_DEVICE_COUNT_LOWER_MASK) >> 4) +
> + ((hdcp->auth.msg.hdcp2.rx_id_list[1] & RXIDLIST_DEVICE_COUNT_UPPER_MASK) << 4);
> +}
> +
> +static enum mod_hdcp_status check_device_count(struct mod_hdcp *hdcp)
> +{
> + /* device count must be greater than or equal to tracked hdcp displays */
> + return (get_device_count(hdcp) < get_added_display_count(hdcp)) ?
> + MOD_HDCP_STATUS_HDCP2_DEVICE_COUNT_MISMATCH_FAILURE :
> + MOD_HDCP_STATUS_SUCCESS;
> +}
> +
> +static uint8_t process_rxstatus(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input,
> + enum mod_hdcp_status *status)
> +{
> + if (!mod_hdcp_execute_and_set(mod_hdcp_read_rxstatus,
> + &input->rxstatus_read, status,
> + hdcp, "rxstatus_read"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(check_reauthentication_request,
> + &input->reauth_request_check, status,
> + hdcp, "reauth_request_check"))
> + goto out;
> + if (is_dp_hdcp(hdcp)) {
> + if (!mod_hdcp_execute_and_set(check_link_integrity_failure_dp,
> + &input->link_integrity_check_dp, status,
> + hdcp, "link_integrity_check_dp"))
> + goto out;
> + }
> + if (hdcp->connection.is_repeater)
> + if (check_receiver_id_list_ready(hdcp) ==
> + MOD_HDCP_STATUS_SUCCESS) {
> + HDCP_INPUT_PASS_TRACE(hdcp, "rx_id_list_ready");
> + event_ctx->rx_id_list_ready = 1;
> + if (is_dp_hdcp(hdcp))
> + hdcp->auth.msg.hdcp2.rx_id_list_size =
> + sizeof(hdcp->auth.msg.hdcp2.rx_id_list);
> + else
> + hdcp->auth.msg.hdcp2.rx_id_list_size =
> + hdcp->auth.msg.hdcp2.rxstatus & 0x3FF;
> + }
> +out:
> + return (*status == MOD_HDCP_STATUS_SUCCESS);
> +}
> +
> +static enum mod_hdcp_status known_hdcp2_capable_rx(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> + if (!mod_hdcp_execute_and_set(mod_hdcp_read_hdcp2version,
> + &input->hdcp2version_read, &status,
> + hdcp, "hdcp2version_read"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(check_hdcp2_capable,
> + &input->hdcp2_capable_check, &status,
> + hdcp, "hdcp2_capable"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status send_ake_init(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> + if (!mod_hdcp_execute_and_set(mod_hdcp_add_display_topology,
> + &input->add_topology, &status,
> + hdcp, "add_topology"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_create_session,
> + &input->create_session, &status,
> + hdcp, "create_session"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_prepare_ake_init,
> + &input->ake_init_prepare, &status,
> + hdcp, "ake_init_prepare"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_write_ake_init,
> + &input->ake_init_write, &status,
> + hdcp, "ake_init_write"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status validate_ake_cert(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
> + event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (is_hdmi_dvi_sl_hdcp(hdcp))
> + if (!mod_hdcp_execute_and_set(check_ake_cert_available,
> + &input->ake_cert_available, &status,
> + hdcp, "ake_cert_available"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_read_ake_cert,
> + &input->ake_cert_read, &status,
> + hdcp, "ake_cert_read"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_validate_ake_cert,
> + &input->ake_cert_validation, &status,
> + hdcp, "ake_cert_validation"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status send_no_stored_km(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!mod_hdcp_execute_and_set(mod_hdcp_write_no_stored_km,
> + &input->no_stored_km_write, &status,
> + hdcp, "no_stored_km_write"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status read_h_prime(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
> + event_ctx->event != MOD_HDCP_EVENT_CPIRQ &&
> + event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!mod_hdcp_execute_and_set(check_h_prime_available,
> + &input->h_prime_available, &status,
> + hdcp, "h_prime_available"))
> + goto out;
> +
> + if (!mod_hdcp_execute_and_set(mod_hdcp_read_h_prime,
> + &input->h_prime_read, &status,
> + hdcp, "h_prime_read"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status read_pairing_info_and_validate_h_prime(
> + struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
> + event_ctx->event != MOD_HDCP_EVENT_CPIRQ &&
> + event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!mod_hdcp_execute_and_set(check_pairing_info_available,
> + &input->pairing_available, &status,
> + hdcp, "pairing_available"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_read_pairing_info,
> + &input->pairing_info_read, &status,
> + hdcp, "pairing_info_read"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_validate_h_prime,
> + &input->h_prime_validation, &status,
> + hdcp, "h_prime_validation"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status send_stored_km(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!mod_hdcp_execute_and_set(mod_hdcp_write_stored_km,
> + &input->stored_km_write, &status,
> + hdcp, "stored_km_write"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status validate_h_prime(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
> + event_ctx->event != MOD_HDCP_EVENT_CPIRQ &&
> + event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!mod_hdcp_execute_and_set(check_h_prime_available,
> + &input->h_prime_available, &status,
> + hdcp, "h_prime_available"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_read_h_prime,
> + &input->h_prime_read, &status,
> + hdcp, "h_prime_read"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_validate_h_prime,
> + &input->h_prime_validation, &status,
> + hdcp, "h_prime_validation"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status locality_check(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_prepare_lc_init,
> + &input->lc_init_prepare, &status,
> + hdcp, "lc_init_prepare"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_write_lc_init,
> + &input->lc_init_write, &status,
> + hdcp, "lc_init_write"))
> + goto out;
> + if (is_dp_hdcp(hdcp))
> + udelay(16000);
> + else
> + if (!mod_hdcp_execute_and_set(poll_l_prime_available,
> + &input->l_prime_available_poll, &status,
> + hdcp, "l_prime_available_poll"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_read_l_prime,
> + &input->l_prime_read, &status,
> + hdcp, "l_prime_read"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_validate_l_prime,
> + &input->l_prime_validation, &status,
> + hdcp, "l_prime_validation"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status exchange_ks_and_test_for_repeater(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_prepare_eks,
> + &input->eks_prepare, &status,
> + hdcp, "eks_prepare"))
> + goto out;
> + if (!mod_hdcp_execute_and_set(mod_hdcp_write_eks,
> + &input->eks_write, &status,
> + hdcp, "eks_write"))
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status enable_encryption(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
> + event_ctx->event != MOD_HDCP_EVENT_CPIRQ) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> + if (event_ctx->event == MOD_HDCP_EVENT_CPIRQ) {
> + process_rxstatus(hdcp, event_ctx, input, &status);
> + goto out;
> + }
> +
> + if (is_hdmi_dvi_sl_hdcp(hdcp)) {
> + if (!process_rxstatus(hdcp, event_ctx, input, &status))
> + goto out;
> + if (event_ctx->rx_id_list_ready)
> + goto out;
> + }
> + if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp2_enable_encryption,
> + &input->enable_encryption, &status,
> + hdcp, "enable_encryption"))
> + goto out;
> + if (is_dp_mst_hdcp(hdcp)) {
> + if (!mod_hdcp_execute_and_set(
> + mod_hdcp_hdcp2_enable_dp_stream_encryption,
> + &input->stream_encryption_dp, &status,
> + hdcp, "stream_encryption_dp"))
> + goto out;
> + }
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status authenticated(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
> + event_ctx->event != MOD_HDCP_EVENT_CPIRQ) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!process_rxstatus(hdcp, event_ctx, input, &status))
> + goto out;
> + if (event_ctx->rx_id_list_ready)
> + goto out;
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status wait_for_rx_id_list(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> +{
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
> + event_ctx->event != MOD_HDCP_EVENT_CPIRQ &&
> + event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
> + event_ctx->unexpected_event = 1;
> + goto out;
> + }
> +
> + if (!process_rxstatus(hdcp, event_ctx, input, &status))
> + goto out;
> + if (!event_ctx->rx_id_list_ready) {
> + status = MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_NOT_READY;
> + goto out;
> + }
> +out:
> + return status;
> +}
> +
> +static enum mod_hdcp_status verify_rx_id_list_and_send_ack(struct mod_hdcp *hdcp,
> + struct mod_hdcp_event_context *event_ctx,
> + struct mod_hdcp_transition_input_hdcp2 *input)
> </cut>
>
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--
Thanks,
~Nick Desaulniers
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