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

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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: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240523192240.844-7-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2024-05-23 21:22:40 +02:00
parent 9081f8ca27
commit 5cef849397
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/xe/xe_gt_sriov_vf.c
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@ -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),