#include "xe_gt_printk.h"
#include "xe_gt_sriov_pf_control.h"
#include "xe_gt_sriov_pf_monitor.h"
-#include "xe_gt_sriov_printk.h"
#include "xe_guc.h"
#include "xe_guc_log.h"
#include "xe_guc_relay.h"
bool done;
};
-#define make_u64(hi, lo) ((u64)((u64)(u32)(hi) << 32 | (u32)(lo)))
-
static void g2h_fence_init(struct g2h_fence *g2h_fence, u32 *response_buffer)
{
memset(g2h_fence, 0, sizeof(*g2h_fence));
receive_g2h(ct);
}
-static void xe_fixup_u64_in_cmds(struct xe_device *xe, struct iosys_map *cmds,
- u32 size, u32 idx, s64 shift)
-{
- u32 hi, lo;
- u64 offset;
-
- lo = xe_map_rd_ring_u32(xe, cmds, idx, size);
- hi = xe_map_rd_ring_u32(xe, cmds, idx + 1, size);
- offset = make_u64(hi, lo);
- offset += shift;
- lo = lower_32_bits(offset);
- hi = upper_32_bits(offset);
- xe_map_wr_ring_u32(xe, cmds, idx, size, lo);
- xe_map_wr_ring_u32(xe, cmds, idx + 1, size, hi);
-}
-
-/*
- * Shift any GGTT addresses within a single message left within CTB from
- * before post-migration recovery.
- * @ct: pointer to CT struct of the target GuC
- * @cmds: iomap buffer containing CT messages
- * @head: start of the target message within the buffer
- * @len: length of the target message
- * @size: size of the commands buffer
- * @shift: the address shift to be added to each GGTT reference
- * Return: true if the message was fixed or needed no fixups, false on failure
- */
-static bool ct_fixup_ggtt_in_message(struct xe_guc_ct *ct,
- struct iosys_map *cmds, u32 head,
- u32 len, u32 size, s64 shift)
-{
- struct xe_gt *gt = ct_to_gt(ct);
- struct xe_device *xe = ct_to_xe(ct);
- u32 msg[GUC_HXG_MSG_MIN_LEN];
- u32 action, i, n;
-
- xe_gt_assert(gt, len >= GUC_HXG_MSG_MIN_LEN);
-
- msg[0] = xe_map_rd_ring_u32(xe, cmds, head, size);
- action = FIELD_GET(GUC_HXG_REQUEST_MSG_0_ACTION, msg[0]);
-
- xe_gt_sriov_dbg_verbose(gt, "fixing H2G %#x\n", action);
-
- switch (action) {
- case XE_GUC_ACTION_REGISTER_CONTEXT:
- if (len != XE_GUC_REGISTER_CONTEXT_MSG_LEN)
- goto err_len;
- xe_fixup_u64_in_cmds(xe, cmds, size, head +
- XE_GUC_REGISTER_CONTEXT_DATA_5_WQ_DESC_ADDR_LOWER,
- shift);
- xe_fixup_u64_in_cmds(xe, cmds, size, head +
- XE_GUC_REGISTER_CONTEXT_DATA_7_WQ_BUF_BASE_LOWER,
- shift);
- xe_fixup_u64_in_cmds(xe, cmds, size, head +
- XE_GUC_REGISTER_CONTEXT_DATA_10_HW_LRC_ADDR, shift);
- break;
- case XE_GUC_ACTION_REGISTER_CONTEXT_MULTI_LRC:
- if (len < XE_GUC_REGISTER_CONTEXT_MULTI_LRC_MSG_MIN_LEN)
- goto err_len;
- n = xe_map_rd_ring_u32(xe, cmds, head +
- XE_GUC_REGISTER_CONTEXT_MULTI_LRC_DATA_10_NUM_CTXS, size);
- if (len != XE_GUC_REGISTER_CONTEXT_MULTI_LRC_MSG_MIN_LEN + 2 * n)
- goto err_len;
- xe_fixup_u64_in_cmds(xe, cmds, size, head +
- XE_GUC_REGISTER_CONTEXT_MULTI_LRC_DATA_5_WQ_DESC_ADDR_LOWER,
- shift);
- xe_fixup_u64_in_cmds(xe, cmds, size, head +
- XE_GUC_REGISTER_CONTEXT_MULTI_LRC_DATA_7_WQ_BUF_BASE_LOWER,
- shift);
- for (i = 0; i < n; i++)
- xe_fixup_u64_in_cmds(xe, cmds, size, head +
- XE_GUC_REGISTER_CONTEXT_MULTI_LRC_DATA_11_HW_LRC_ADDR
- + 2 * i, shift);
- break;
- default:
- break;
- }
- return true;
-
-err_len:
- xe_gt_err(gt, "Skipped G2G %#x message fixups, unexpected length (%u)\n", action, len);
- return false;
-}
-
-/*
- * Apply fixups to the next outgoing CT message within given CTB
- * @ct: the &xe_guc_ct struct instance representing the target GuC
- * @h2g: the &guc_ctb struct instance of the target buffer
- * @shift: shift to be added to all GGTT addresses within the CTB
- * @mhead: pointer to an integer storing message start position; the
- * position is changed to next message before this function return
- * @avail: size of the area available for parsing, that is length
- * of all remaining messages stored within the CTB
- * Return: size of the area available for parsing after one message
- * has been parsed, that is length remaining from the updated mhead
- */
-static int ct_fixup_ggtt_in_buffer(struct xe_guc_ct *ct, struct guc_ctb *h2g,
- s64 shift, u32 *mhead, s32 avail)
-{
- struct xe_gt *gt = ct_to_gt(ct);
- struct xe_device *xe = ct_to_xe(ct);
- u32 msg[GUC_HXG_MSG_MIN_LEN];
- u32 size = h2g->info.size;
- u32 head = *mhead;
- u32 len;
-
- xe_gt_assert(gt, avail >= (s32)GUC_CTB_MSG_MIN_LEN);
-
- /* Read header */
- msg[0] = xe_map_rd_ring_u32(xe, &h2g->cmds, head, size);
- len = FIELD_GET(GUC_CTB_MSG_0_NUM_DWORDS, msg[0]) + GUC_CTB_MSG_MIN_LEN;
-
- if (unlikely(len > (u32)avail)) {
- xe_gt_err(gt, "H2G channel broken on read, avail=%d, len=%d, fixups skipped\n",
- avail, len);
- return 0;
- }
-
- head = (head + GUC_CTB_MSG_MIN_LEN) % size;
- if (!ct_fixup_ggtt_in_message(ct, &h2g->cmds, head, msg_len_to_hxg_len(len), size, shift))
- return 0;
- *mhead = (head + msg_len_to_hxg_len(len)) % size;
-
- return avail - len;
-}
-
-/**
- * xe_guc_ct_fixup_messages_with_ggtt - Fixup any pending H2G CTB messages
- * @ct: pointer to CT struct of the target GuC
- * @ggtt_shift: shift to be added to all GGTT addresses within the CTB
- *
- * Messages in GuC to Host CTB are owned by GuC and any fixups in them
- * are made by GuC. But content of the Host to GuC CTB is owned by the
- * KMD, so fixups to GGTT references in any pending messages need to be
- * applied here.
- * This function updates GGTT offsets in payloads of pending H2G CTB
- * messages (messages which were not consumed by GuC before the VF got
- * paused).
- */
-void xe_guc_ct_fixup_messages_with_ggtt(struct xe_guc_ct *ct, s64 ggtt_shift)
-{
- struct guc_ctb *h2g = &ct->ctbs.h2g;
- struct xe_guc *guc = ct_to_guc(ct);
- struct xe_gt *gt = guc_to_gt(guc);
- u32 head, tail, size;
- s32 avail;
-
- if (unlikely(h2g->info.broken))
- return;
-
- h2g->info.head = desc_read(ct_to_xe(ct), h2g, head);
- head = h2g->info.head;
- tail = READ_ONCE(h2g->info.tail);
- size = h2g->info.size;
-
- if (unlikely(head > size))
- goto corrupted;
-
- if (unlikely(tail >= size))
- goto corrupted;
-
- avail = tail - head;
-
- /* beware of buffer wrap case */
- if (unlikely(avail < 0))
- avail += size;
- xe_gt_dbg(gt, "available %d (%u:%u:%u)\n", avail, head, tail, size);
- xe_gt_assert(gt, avail >= 0);
-
- while (avail > 0)
- avail = ct_fixup_ggtt_in_buffer(ct, h2g, ggtt_shift, &head, avail);
-
- return;
-
-corrupted:
- xe_gt_err(gt, "Corrupted H2G descriptor head=%u tail=%u size=%u, fixups not applied\n",
- head, tail, size);
- h2g->info.broken = true;
-}
-
static struct xe_guc_ct_snapshot *guc_ct_snapshot_alloc(struct xe_guc_ct *ct, bool atomic,
bool want_ctb)
{
iosys_map_wr(map__, offset__, type__, val__); \
})
-#define xe_map_rd_array(xe__, map__, index__, type__) \
- xe_map_rd(xe__, map__, (index__) * sizeof(type__), type__)
-
-#define xe_map_wr_array(xe__, map__, index__, type__, val__) \
- xe_map_wr(xe__, map__, (index__) * sizeof(type__), type__, val__)
-
-#define xe_map_rd_array_u32(xe__, map__, index__) \
- xe_map_rd_array(xe__, map__, index__, u32)
-
-#define xe_map_wr_array_u32(xe__, map__, index__, val__) \
- xe_map_wr_array(xe__, map__, index__, u32, val__)
-
-#define xe_map_rd_ring_u32(xe__, map__, index__, size__) \
- xe_map_rd_array_u32(xe__, map__, (index__) % (size__))
-
-#define xe_map_wr_ring_u32(xe__, map__, index__, size__, val__) \
- xe_map_wr_array_u32(xe__, map__, (index__) % (size__), val__)
-
#define xe_map_rd_field(xe__, map__, struct_offset__, struct_type__, field__) ({ \
struct xe_device *__xe = xe__; \
xe_device_assert_mem_access(__xe); \
projects / thirdparty / kernel / linux.git / commitdiff
