Commit 723b45e2 authored by Liad Kaufman's avatar Liad Kaufman Committed by Luca Coelho
Browse files

iwlwifi: pcie: support dumping FH in a000 hw 



FH in A000 HW are placed in a different location,
and need to be read as prph, rather than direct.
Support A000 dumping as well as legacy.

Signed-off-by: default avatarLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 6e584873

drivers/net/wireless/intel/iwlwifi/iwl-fh.h

+2 −0
Original line number Diff line number Diff line
@@ -77,6 +77,8 @@ 
 */

#define FH_MEM_LOWER_BOUND                   (0x1000)

#define FH_MEM_UPPER_BOUND                   (0x2000)

#define FH_MEM_LOWER_BOUND_GEN2              (0xa06000)

#define FH_MEM_UPPER_BOUND_GEN2              (0xa08000)



/**

 * Keep-Warm (KW) buffer base address.

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

+15 −3
Original line number Diff line number Diff line
@@ -2575,8 +2575,15 @@ static u32 iwl_trans_pcie_fh_regs_dump(struct iwl_trans *trans, 
	(*data)->len = cpu_to_le32(fh_regs_len);

	val = (void *)(*data)->data;



	for (i = FH_MEM_LOWER_BOUND; i < FH_MEM_UPPER_BOUND; i += sizeof(u32))

	if (!trans->cfg->gen2)

		for (i = FH_MEM_LOWER_BOUND; i < FH_MEM_UPPER_BOUND;

		     i += sizeof(u32))

			*val++ = cpu_to_le32(iwl_trans_pcie_read32(trans, i));

	else

		for (i = FH_MEM_LOWER_BOUND_GEN2; i < FH_MEM_UPPER_BOUND_GEN2;

		     i += sizeof(u32))

			*val++ = cpu_to_le32(iwl_trans_pcie_read_prph(trans,

								      i));



	iwl_trans_release_nic_access(trans, &flags);
@@ -2752,7 +2759,12 @@ static struct iwl_trans_dump_data 
	len += sizeof(*data) + IWL_CSR_TO_DUMP;



	/* FH registers */

	len += sizeof(*data) + (FH_MEM_UPPER_BOUND - FH_MEM_LOWER_BOUND);

	if (trans->cfg->gen2)

		len += sizeof(*data) +

		       (FH_MEM_UPPER_BOUND_GEN2 - FH_MEM_LOWER_BOUND_GEN2);

	else

		len += sizeof(*data) +

		       (FH_MEM_UPPER_BOUND - FH_MEM_LOWER_BOUND);



	if (dump_rbs) {

		/* Dump RBs is supported only for pre-9000 devices (1 queue) */

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