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drm/xe/pf: Move GGTT config KLVs encoding to helper

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In upcoming patch we will want to encode GGTT config KLVs based
on raw numbers, without relying on the allocated GGTT node.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://lore.kernel.org/r/20250711193316.1920-4-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2025-07-11 21:33:13 +02:00
parent 1c38dd6afa
commit 92ba2032a1
1 changed files with 20 additions and 11 deletions
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31
drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
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@ -238,25 +238,34 @@ static struct xe_gt_sriov_config *pf_pick_vf_config(struct xe_gt *gt, unsigned i
}
/* Return: number of configuration dwords written */
static u32 encode_config_ggtt(u32 *cfg, const struct xe_gt_sriov_config *config, bool details)
static u32 encode_ggtt(u32 *cfg, u64 start, u64 size, bool details)
{
u32 n = 0;
if (xe_ggtt_node_allocated(config->ggtt_region)) {
if (details) {
cfg[n++] = PREP_GUC_KLV_TAG(VF_CFG_GGTT_START);
cfg[n++] = lower_32_bits(config->ggtt_region->base.start);
cfg[n++] = upper_32_bits(config->ggtt_region->base.start);
}
cfg[n++] = PREP_GUC_KLV_TAG(VF_CFG_GGTT_SIZE);
cfg[n++] = lower_32_bits(config->ggtt_region->base.size);
cfg[n++] = upper_32_bits(config->ggtt_region->base.size);
if (details) {
cfg[n++] = PREP_GUC_KLV_TAG(VF_CFG_GGTT_START);
cfg[n++] = lower_32_bits(start);
cfg[n++] = upper_32_bits(start);
}
cfg[n++] = PREP_GUC_KLV_TAG(VF_CFG_GGTT_SIZE);
cfg[n++] = lower_32_bits(size);
cfg[n++] = upper_32_bits(size);
return n;
}
/* Return: number of configuration dwords written */
static u32 encode_config_ggtt(u32 *cfg, const struct xe_gt_sriov_config *config, bool details)
{
struct xe_ggtt_node *node = config->ggtt_region;
if (!xe_ggtt_node_allocated(node))
return 0;
return encode_ggtt(cfg, node->base.start, node->base.size, details);
}
/* Return: number of configuration dwords written */
static u32 encode_config(u32 *cfg, const struct xe_gt_sriov_config *config, bool details)
{