[CI-NOTIFY]: TCWG Bisect tcwg_kernel/llvm-release-aarch64-next-allmodconfig - Build # 48 - Successful!
Nathan Chancellor
natechancellor at gmail.com
Tue Dec 17 18:21:19 UTC 2019
On Tue, Dec 17, 2019 at 09:19:37AM -0800, 'Nick Desaulniers' via Clang Built Linux wrote:
> 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?
>
arm allyesconfig is also broken at link time, which I reported here
previously:
https://lists.freedesktop.org/archives/amd-gfx/2019-November/043109.html
ld.lld: error: undefined symbol: __bad_udelay
>>> referenced by hdcp2_execution.c
>>> gpu/drm/amd/display/modules/hdcp/hdcp2_execution.o:(locality_check) in archive drivers/built-in.a
>>> referenced by hdcp2_execution.c
>>> gpu/drm/amd/display/modules/hdcp/hdcp2_execution.o:(poll_l_prime_available) in archive drivers/built-in.a
>>> referenced by hdcp2_execution.c
>>> gpu/drm/amd/display/modules/hdcp/hdcp2_execution.o:(poll_l_prime_available) in archive drivers/built-in.a
>>> referenced by hdcp2_execution.c
>>> gpu/drm/amd/display/modules/hdcp/hdcp2_execution.o:(poll_l_prime_available) in archive drivers/built-in.a
>>> referenced by hdcp2_execution.c
>>> gpu/drm/amd/display/modules/hdcp/hdcp2_execution.o:(poll_l_prime_available) in archive drivers/built-in.a
>>> referenced by hdcp2_execution.c
>>> gpu/drm/amd/display/modules/hdcp/hdcp2_execution.o:(poll_l_prime_available) in archive drivers/built-in.a
> 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>
> >
> > --
> > You received this message because you are subscribed to the Google Groups "Clang Built Linux" group.
> > To unsubscribe from this group and stop receiving emails from it, send an email to clang-built-linux+unsubscribe at googlegroups.com.
> > To view this discussion on the web visit https://groups.google.com/d/msgid/clang-built-linux/112215220.5289.1576595244770.JavaMail.javamailuser%40localhost.
>
>
>
> --
> Thanks,
> ~Nick Desaulniers
>
> --
> You received this message because you are subscribed to the Google Groups "Clang Built Linux" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to clang-built-linux+unsubscribe at googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/clang-built-linux/CAKwvOdmPBgbJTgnoX8rJFL_3XrRDpfzuGA7w4fgh7GedNfydPw%40mail.gmail.com.
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