Commit bfcdc8ff authored by Michael Neuling's avatar Michael Neuling Committed by Michael Ellerman

cxl: Dump debug info on the AFU configuration record

Now that we parse the AFU Configuration record, dump some info on it when in
debug mode.
Signed-off-by: default avatarMichael Neuling <mikey@neuling.org>
Acked-by: default avatarIan Munsie <imunsie@au1.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 7f436b53
...@@ -90,6 +90,7 @@ ...@@ -90,6 +90,7 @@
/* This works a little different than the p1/p2 register accesses to make it /* This works a little different than the p1/p2 register accesses to make it
* easier to pull out individual fields */ * easier to pull out individual fields */
#define AFUD_READ(afu, off) in_be64(afu->afu_desc_mmio + off) #define AFUD_READ(afu, off) in_be64(afu->afu_desc_mmio + off)
#define AFUD_READ_LE(afu, off) in_le64(afu->afu_desc_mmio + off)
#define EXTRACT_PPC_BIT(val, bit) (!!(val & PPC_BIT(bit))) #define EXTRACT_PPC_BIT(val, bit) (!!(val & PPC_BIT(bit)))
#define EXTRACT_PPC_BITS(val, bs, be) ((val & PPC_BITMASK(bs, be)) >> PPC_BITLSHIFT(be)) #define EXTRACT_PPC_BITS(val, bs, be) ((val & PPC_BITMASK(bs, be)) >> PPC_BITLSHIFT(be))
...@@ -286,7 +287,8 @@ static void dump_cxl_config_space(struct pci_dev *dev) ...@@ -286,7 +287,8 @@ static void dump_cxl_config_space(struct pci_dev *dev)
static void dump_afu_descriptor(struct cxl_afu *afu) static void dump_afu_descriptor(struct cxl_afu *afu)
{ {
u64 val; u64 val, afu_cr_num, afu_cr_off, afu_cr_len;
int i;
#define show_reg(name, what) \ #define show_reg(name, what) \
dev_info(&afu->dev, "afu desc: %30s: %#llx\n", name, what) dev_info(&afu->dev, "afu desc: %30s: %#llx\n", name, what)
...@@ -296,6 +298,7 @@ static void dump_afu_descriptor(struct cxl_afu *afu) ...@@ -296,6 +298,7 @@ static void dump_afu_descriptor(struct cxl_afu *afu)
show_reg("num_of_processes", AFUD_NUM_PROCS(val)); show_reg("num_of_processes", AFUD_NUM_PROCS(val));
show_reg("num_of_afu_CRs", AFUD_NUM_CRS(val)); show_reg("num_of_afu_CRs", AFUD_NUM_CRS(val));
show_reg("req_prog_mode", val & 0xffffULL); show_reg("req_prog_mode", val & 0xffffULL);
afu_cr_num = AFUD_NUM_CRS(val);
val = AFUD_READ(afu, 0x8); val = AFUD_READ(afu, 0x8);
show_reg("Reserved", val); show_reg("Reserved", val);
...@@ -307,8 +310,10 @@ static void dump_afu_descriptor(struct cxl_afu *afu) ...@@ -307,8 +310,10 @@ static void dump_afu_descriptor(struct cxl_afu *afu)
val = AFUD_READ_CR(afu); val = AFUD_READ_CR(afu);
show_reg("Reserved", (val >> (63-7)) & 0xff); show_reg("Reserved", (val >> (63-7)) & 0xff);
show_reg("AFU_CR_len", AFUD_CR_LEN(val)); show_reg("AFU_CR_len", AFUD_CR_LEN(val));
afu_cr_len = AFUD_CR_LEN(val) * 256;
val = AFUD_READ_CR_OFF(afu); val = AFUD_READ_CR_OFF(afu);
afu_cr_off = val;
show_reg("AFU_CR_offset", val); show_reg("AFU_CR_offset", val);
val = AFUD_READ_PPPSA(afu); val = AFUD_READ_PPPSA(afu);
...@@ -325,6 +330,11 @@ static void dump_afu_descriptor(struct cxl_afu *afu) ...@@ -325,6 +330,11 @@ static void dump_afu_descriptor(struct cxl_afu *afu)
val = AFUD_READ_EB_OFF(afu); val = AFUD_READ_EB_OFF(afu);
show_reg("AFU_EB_offset", val); show_reg("AFU_EB_offset", val);
for (i = 0; i < afu_cr_num; i++) {
val = AFUD_READ_LE(afu, afu_cr_off + i * afu_cr_len);
show_reg("CR Vendor", val & 0xffff);
show_reg("CR Device", (val >> 16) & 0xffff);
}
#undef show_reg #undef show_reg
} }
......
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