Commit 281326be authored by Niravkumar L Rabara's avatar Niravkumar L Rabara Committed by Borislav Petkov (AMD)
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EDAC/altera: Use INTTEST register for Ethernet and USB SBE injection 



The current single-bit error injection mechanism flips bits directly in ECC RAM
by performing write and read operations. When the ECC RAM is actively used by
the Ethernet or USB controller, this approach sometimes trigger a false
double-bit error.

Switch both Ethernet and USB EDAC devices to use the INTTEST register
(altr_edac_a10_device_inject_fops) for single-bit error injection, similar to
the existing double-bit error injection method.

Fixes: 064acbd4 ("EDAC, altera: Add Stratix10 peripheral support")
Signed-off-by: default avatarNiravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Acked-by: default avatarDinh Nguyen <dinguyen@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251111081333.1279635-1-niravkumarlaxmidas.rabara@altera.com
parent fd3ecda3

drivers/edac/altera_edac.c

+2 −2
Original line number Diff line number Diff line
@@ -1369,7 +1369,7 @@ static const struct edac_device_prv_data a10_enetecc_data = { 
	.ue_set_mask = ALTR_A10_ECC_TDERRA,

	.set_err_ofst = ALTR_A10_ECC_INTTEST_OFST,

	.ecc_irq_handler = altr_edac_a10_ecc_irq,

	.inject_fops = &altr_edac_a10_device_inject2_fops,

	.inject_fops = &altr_edac_a10_device_inject_fops,

};



#endif	/* CONFIG_EDAC_ALTERA_ETHERNET */
@@ -1459,7 +1459,7 @@ static const struct edac_device_prv_data a10_usbecc_data = { 
	.ue_set_mask = ALTR_A10_ECC_TDERRA,

	.set_err_ofst = ALTR_A10_ECC_INTTEST_OFST,

	.ecc_irq_handler = altr_edac_a10_ecc_irq,

	.inject_fops = &altr_edac_a10_device_inject2_fops,

	.inject_fops = &altr_edac_a10_device_inject_fops,

};



#endif	/* CONFIG_EDAC_ALTERA_USB */