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authorDavid S. Miller2019-06-18 04:48:13 +0200
committerDavid S. Miller2019-06-18 05:20:36 +0200
commit13091aa30535b719e269f20a7bc34002bf5afae5 (patch)
treebd17956c3ce606a119fadbd43bfa1c0c10006984 /drivers/misc/habanalabs/goya/goya_coresight.c
parentMerge branch 'UDP-GSO-audit-tests' (diff)
parentMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Honestly all the conflicts were simple overlapping changes, nothing really interesting to report. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/misc/habanalabs/goya/goya_coresight.c')
-rw-r--r--drivers/misc/habanalabs/goya/goya_coresight.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/goya/goya_coresight.c b/drivers/misc/habanalabs/goya/goya_coresight.c
index 1ac951f52d1e..d7ec7ad84cc6 100644
--- a/drivers/misc/habanalabs/goya/goya_coresight.c
+++ b/drivers/misc/habanalabs/goya/goya_coresight.c
@@ -425,8 +425,18 @@ static int goya_config_etr(struct hl_device *hdev,
WREG32(base_reg + 0x28, 0);
WREG32(base_reg + 0x304, 0);
- if (params->output_size >= sizeof(u32))
- *(u32 *) params->output = RREG32(base_reg + 0x18);
+ if (params->output_size >= sizeof(u64)) {
+ u32 rwp, rwphi;
+
+ /*
+ * The trace buffer address is 40 bits wide. The end of
+ * the buffer is set in the RWP register (lower 32
+ * bits), and in the RWPHI register (upper 8 bits).
+ */
+ rwp = RREG32(base_reg + 0x18);
+ rwphi = RREG32(base_reg + 0x3c) & 0xff;
+ *(u64 *) params->output = ((u64) rwphi << 32) | rwp;
+ }
}
return 0;
@@ -626,3 +636,20 @@ int goya_debug_coresight(struct hl_device *hdev, void *data)
return rc;
}
+
+void goya_halt_coresight(struct hl_device *hdev)
+{
+ struct hl_debug_params params = {};
+ int i, rc;
+
+ for (i = GOYA_ETF_FIRST ; i <= GOYA_ETF_LAST ; i++) {
+ params.reg_idx = i;
+ rc = goya_config_etf(hdev, &params);
+ if (rc)
+ dev_err(hdev->dev, "halt ETF failed, %d/%d\n", rc, i);
+ }
+
+ rc = goya_config_etr(hdev, &params);
+ if (rc)
+ dev_err(hdev->dev, "halt ETR failed, %d\n", rc);
+}