Commit 5cef8493 authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe/vf: Treat GMDID as another runtime register 



While the GMDID registers are not part of the runtime register list
shared by the PF driver, we may still return cached values from our
VF specific read32() helper function.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240523192240.844-7-michal.wajdeczko@intel.com
parent 9081f8ca

drivers/gpu/drm/xe/xe_gt_sriov_vf.c

+7 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include "abi/guc_communication_mmio_abi.h"

#include "abi/guc_klvs_abi.h"

#include "abi/guc_relay_actions_abi.h"

#include "regs/xe_gt_regs.h"



#include "xe_assert.h"

#include "xe_device.h"
@@ -764,6 +765,12 @@ u32 xe_gt_sriov_vf_read32(struct xe_gt *gt, struct xe_reg reg) 
	xe_gt_assert(gt, gt->sriov.vf.pf_version.major);

	xe_gt_assert(gt, !reg.vf);



	if (reg.addr == GMD_ID.addr) {

		xe_gt_sriov_dbg_verbose(gt, "gmdid(%#x) = %#x\n",

					addr, gt->sriov.vf.runtime.gmdid);

		return gt->sriov.vf.runtime.gmdid;

	}



	rr = vf_lookup_reg(gt, addr);

	if (!rr) {

		xe_gt_WARN(gt, IS_ENABLED(CONFIG_DRM_XE_DEBUG),