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ath10k: add memory dump support QCA9984

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QCA9984/QCA99X0/QCA4019 chipsets have 8 memory regions, dump all of them to the
firmware coredump file. Some of the regions need to be read using ioread() so
add new region types for them.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
[kvalo: refactoring etc]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Anilkumar Kolli
2018-03-27 11:26:52 +03:00
committed by Kalle Valo
parent 10c2288430
commit 219cc084c6
3 changed files with 135 additions and 0 deletions
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43
drivers/net/wireless/ath/ath10k/pci.c
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@@ -57,6 +57,10 @@ MODULE_PARM_DESC(reset_mode, "0: auto, 1: warm only (default: 0)");
*/
#define ATH10K_DIAG_TRANSFER_LIMIT 0x5000
#define QCA99X0_PCIE_BAR0_START_REG 0x81030
#define QCA99X0_CPU_MEM_ADDR_REG 0x4d00c
#define QCA99X0_CPU_MEM_DATA_REG 0x4d010
static const struct pci_device_id ath10k_pci_id_table[] = {
/* PCI-E QCA988X V2 (Ubiquiti branded) */
{ PCI_VDEVICE(UBIQUITI, QCA988X_2_0_DEVICE_ID_UBNT) },
@@ -1584,6 +1588,39 @@ static int ath10k_pci_set_ram_config(struct ath10k *ar, u32 config)
return 0;
}
/* if an error happened returns < 0, otherwise the length */
static int ath10k_pci_dump_memory_sram(struct ath10k *ar,
const struct ath10k_mem_region *region,
u8 *buf)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
u32 base_addr, i;
base_addr = ioread32(ar_pci->mem + QCA99X0_PCIE_BAR0_START_REG);
base_addr += region->start;
for (i = 0; i < region->len; i += 4) {
iowrite32(base_addr + i, ar_pci->mem + QCA99X0_CPU_MEM_ADDR_REG);
*(u32 *)(buf + i) = ioread32(ar_pci->mem + QCA99X0_CPU_MEM_DATA_REG);
}
return region->len;
}
/* if an error happened returns < 0, otherwise the length */
static int ath10k_pci_dump_memory_reg(struct ath10k *ar,
const struct ath10k_mem_region *region,
u8 *buf)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
u32 i;
for (i = 0; i < region->len; i += 4)
*(u32 *)(buf + i) = ioread32(ar_pci->mem + region->start + i);
return region->len;
}
/* if an error happened returns < 0, otherwise the length */
static int ath10k_pci_dump_memory_generic(struct ath10k *ar,
const struct ath10k_mem_region *current_region,
@@ -1673,6 +1710,12 @@ static void ath10k_pci_dump_memory(struct ath10k *ar,
buf_len -= sizeof(*hdr);
switch (current_region->type) {
case ATH10K_MEM_REGION_TYPE_IOSRAM:
count = ath10k_pci_dump_memory_sram(ar, current_region, buf);
break;
case ATH10K_MEM_REGION_TYPE_IOREG:
count = ath10k_pci_dump_memory_reg(ar, current_region, buf);
break;
default:
ret = ath10k_pci_dump_memory_generic(ar, current_region, buf);
if (ret < 0)