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drm/xe: Use gsc_proxy_init_done to check proxy status

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Expose gsc_proxy_init_done so that we can check if gsc proxy has
been initialized or not.

--v2
-Check if GSC FW is enabled before taking forcewake ref [Daniele]

--v3
-Directly call proxy check function inside if condition

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240306024247.1857881-5-suraj.kandpal@intel.com
This commit is contained in:
Suraj Kandpal 2024-03-06 08:12:47 +05:30 committed by Mika Kahola
parent b8e7996f41
commit 4af50beb4e
3 changed files with 31 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/gpu/drm/xe/display/xe_hdcp_gsc.c
View File

@ -4,8 +4,14 @@
*/
#include <drm/drm_print.h>
#include "intel_hdcp_gsc.h"
#include "xe_device_types.h"
#include "xe_device.h"
#include "xe_gt.h"
#include "xe_gsc_proxy.h"
#include "xe_pm.h"
#include "xe_uc_fw.h"
bool intel_hdcp_gsc_cs_required(struct xe_device *xe)
{
@ -14,7 +20,28 @@ bool intel_hdcp_gsc_cs_required(struct xe_device *xe)
bool intel_hdcp_gsc_check_status(struct xe_device *xe)
{
return false;
struct xe_tile *tile = xe_device_get_root_tile(xe);
struct xe_gt *gt = tile->media_gt;
bool ret = true;
if (!xe_uc_fw_is_enabled(&gt->uc.gsc.fw))
return false;
xe_pm_runtime_get(xe);
if (xe_force_wake_get(gt_to_fw(gt), XE_FW_GSC)) {
drm_dbg_kms(&xe->drm,
"failed to get forcewake to check proxy status\n");
ret = false;
goto out;
}
if (!xe_gsc_proxy_init_done(&gt->uc.gsc))
ret = false;
xe_force_wake_put(gt_to_fw(gt), XE_FW_GSC);
out:
xe_pm_runtime_put(xe);
return ret;
}
int intel_hdcp_gsc_init(struct xe_device *xe)

4
drivers/gpu/drm/xe/xe_gsc_proxy.c
View File

@ -66,7 +66,7 @@ static inline struct xe_device *kdev_to_xe(struct device *kdev)
return dev_get_drvdata(kdev);
}
static bool gsc_proxy_init_done(struct xe_gsc *gsc)
bool xe_gsc_proxy_init_done(struct xe_gsc *gsc)
{
struct xe_gt *gt = gsc_to_gt(gsc);
u32 fwsts1 = xe_mmio_read32(gt, HECI_FWSTS1(MTL_GSC_HECI1_BASE));
@ -528,7 +528,7 @@ int xe_gsc_proxy_start(struct xe_gsc *gsc)
if (err)
return err;
if (!gsc_proxy_init_done(gsc)) {
if (!xe_gsc_proxy_init_done(gsc)) {
xe_gt_err(gsc_to_gt(gsc), "GSC FW reports proxy init not completed\n");
return -EIO;
}

1
drivers/gpu/drm/xe/xe_gsc_proxy.h
View File

@ -11,6 +11,7 @@
struct xe_gsc;
int xe_gsc_proxy_init(struct xe_gsc *gsc);
bool xe_gsc_proxy_init_done(struct xe_gsc *gsc);
void xe_gsc_proxy_remove(struct xe_gsc *gsc);
int xe_gsc_proxy_start(struct xe_gsc *gsc);