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authorAlan Previn <alan.previn.teres.alexis@intel.com>2023-03-23 21:41:56 +0300
committerDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>2023-04-05 19:19:32 +0300
commit69e6dd149212cdd681201352a79e6634665004e8 (patch)
tree5120e918eb3b7817c7ccea3b1186262b323d93b2 /drivers/gpu
parent899ff790d1a94dda9bd09a4a6bde01fb7ff0bec8 (diff)
downloadlinux-69e6dd149212cdd681201352a79e6634665004e8.tar.xz
drm/i915/pxp: limit drm-errors or warning on firmware API failures
MESA driver is creating protected context on every driver handle creation to query caps bits for app. So when running CI tests, they are observing hundreds of drm_errors when enabling PXP in .config but using SOC fusing or BIOS configuration that cannot support PXP sessions. The fixes tag referenced below was to resolve a related issue where we wanted to silence error messages, but that case was due to outdated IFWI (firmware) that definitely needed an upgrade and was, at that point, considered a one-off case as opposed to today's realization that default CI was enabling PXP in kernel config for all testing. So with this patch, let's strike a balance between issues that is critical but are root-caused from HW/platform gaps (louder drm-warn but just ONCE) vs other cases where it could also come from session state machine (which cannot be a WARN_ONCE since it can be triggered due to runtime operation events). Let's use helpers for these so as more functions are added in future features / HW (or as FW designers continue to bless upstreaming of the error codes and meanings), we only need to update the helpers. NOTE: Don't completely remove FW errors (via drm_debug) or else cusomer apps that really needs to know that content protection failed won't be aware of it. v2: - Add fixes tag (Trvtko) v3: - Break multi-line drm_dbg strings into separate drm_dbg (Daniele) - Fix couple of typecasting nits (Daniele) v4: - Unsuccessful PXP FW cmd due to platform configuration shouldn't use drm_WARN_once (Tvrtko), Switched to use drm_info_once. v5: - Added "reported-and-tested" by Eero. Reported-and-tested-by: Eero Tamminen <eero.t.tamminen@intel.com> Fixes: b762787bf767 ("drm/i915/pxp: Use drm_dbg if arb session failed due to fw version") Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230323184156.4140659-1-alan.previn.teres.alexis@intel.com
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h3
-rw-r--r--drivers/gpu/drm/i915/pxp/intel_pxp_session.c2
-rw-r--r--drivers/gpu/drm/i915/pxp/intel_pxp_tee.c77
3 files changed, 67 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
index ae9b151b7cb7..6f6541d5e49a 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
@@ -18,6 +18,9 @@
enum pxp_status {
PXP_STATUS_SUCCESS = 0x0,
PXP_STATUS_ERROR_API_VERSION = 0x1002,
+ PXP_STATUS_NOT_READY = 0x100e,
+ PXP_STATUS_PLATFCONFIG_KF1_NOVERIF = 0x101a,
+ PXP_STATUS_PLATFCONFIG_KF1_BAD = 0x101f,
PXP_STATUS_OP_NOT_PERMITTED = 0x4013
};
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
index 448cacb0465d..7de849cb6c47 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
@@ -74,7 +74,7 @@ static int pxp_create_arb_session(struct intel_pxp *pxp)
ret = pxp_wait_for_session_state(pxp, ARB_SESSION, true);
if (ret) {
- drm_err(&gt->i915->drm, "arb session failed to go in play\n");
+ drm_dbg(&gt->i915->drm, "arb session failed to go in play\n");
return ret;
}
drm_dbg(&gt->i915->drm, "PXP ARB session is alive\n");
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
index d9d248b48093..a2846b1dbbee 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
@@ -19,6 +19,37 @@
#include "intel_pxp_tee.h"
#include "intel_pxp_types.h"
+static bool
+is_fw_err_platform_config(u32 type)
+{
+ switch (type) {
+ case PXP_STATUS_ERROR_API_VERSION:
+ case PXP_STATUS_PLATFCONFIG_KF1_NOVERIF:
+ case PXP_STATUS_PLATFCONFIG_KF1_BAD:
+ return true;
+ default:
+ break;
+ }
+ return false;
+}
+
+static const char *
+fw_err_to_string(u32 type)
+{
+ switch (type) {
+ case PXP_STATUS_ERROR_API_VERSION:
+ return "ERR_API_VERSION";
+ case PXP_STATUS_NOT_READY:
+ return "ERR_NOT_READY";
+ case PXP_STATUS_PLATFCONFIG_KF1_NOVERIF:
+ case PXP_STATUS_PLATFCONFIG_KF1_BAD:
+ return "ERR_PLATFORM_CONFIG";
+ default:
+ break;
+ }
+ return NULL;
+}
+
static int intel_pxp_tee_io_message(struct intel_pxp *pxp,
void *msg_in, u32 msg_in_size,
void *msg_out, u32 msg_out_max_size,
@@ -307,15 +338,22 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp,
&msg_out, sizeof(msg_out),
NULL);
- if (ret)
- drm_err(&i915->drm, "Failed to send tee msg ret=[%d]\n", ret);
- else if (msg_out.header.status == PXP_STATUS_ERROR_API_VERSION)
- drm_dbg(&i915->drm, "PXP firmware version unsupported, requested: "
- "CMD-ID-[0x%08x] on API-Ver-[0x%08x]\n",
- msg_in.header.command_id, msg_in.header.api_version);
- else if (msg_out.header.status != 0x0)
- drm_warn(&i915->drm, "PXP firmware failed arb session init request ret=[0x%08x]\n",
- msg_out.header.status);
+ if (ret) {
+ drm_err(&i915->drm, "Failed to send tee msg init arb session, ret=[%d]\n", ret);
+ } else if (msg_out.header.status != 0) {
+ if (is_fw_err_platform_config(msg_out.header.status)) {
+ drm_info_once(&i915->drm,
+ "PXP init-arb-session-%d failed due to BIOS/SOC:0x%08x:%s\n",
+ arb_session_id, msg_out.header.status,
+ fw_err_to_string(msg_out.header.status));
+ } else {
+ drm_dbg(&i915->drm, "PXP init-arb-session--%d failed 0x%08x:%st:\n",
+ arb_session_id, msg_out.header.status,
+ fw_err_to_string(msg_out.header.status));
+ drm_dbg(&i915->drm, " cmd-detail: ID=[0x%08x],API-Ver-[0x%08x]\n",
+ msg_in.header.command_id, msg_in.header.api_version);
+ }
+ }
return ret;
}
@@ -347,10 +385,21 @@ try_again:
if ((ret || msg_out.header.status != 0x0) && ++trials < 3)
goto try_again;
- if (ret)
- drm_err(&i915->drm, "Failed to send tee msg for inv-stream-key-%d, ret=[%d]\n",
+ if (ret) {
+ drm_err(&i915->drm, "Failed to send tee msg for inv-stream-key-%u, ret=[%d]\n",
session_id, ret);
- else if (msg_out.header.status != 0x0)
- drm_warn(&i915->drm, "PXP firmware failed inv-stream-key-%d with status 0x%08x\n",
- session_id, msg_out.header.status);
+ } else if (msg_out.header.status != 0) {
+ if (is_fw_err_platform_config(msg_out.header.status)) {
+ drm_info_once(&i915->drm,
+ "PXP inv-stream-key-%u failed due to BIOS/SOC :0x%08x:%s\n",
+ session_id, msg_out.header.status,
+ fw_err_to_string(msg_out.header.status));
+ } else {
+ drm_dbg(&i915->drm, "PXP inv-stream-key-%u failed 0x%08x:%s:\n",
+ session_id, msg_out.header.status,
+ fw_err_to_string(msg_out.header.status));
+ drm_dbg(&i915->drm, " cmd-detail: ID=[0x%08x],API-Ver-[0x%08x]\n",
+ msg_in.header.command_id, msg_in.header.api_version);
+ }
+ }
}