Re: [PATCH] drm/amdgpu: Add "harvest" to IP discovery sysfs

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Am 15.02.22 um 15:33 schrieb Luben Tuikov:
On 2022-02-15 09:25, Christian König wrote:
Am 15.02.22 um 00:21 schrieb Luben Tuikov:
Add the "harvest" field to the IP attributes in
the IP discovery sysfs visualization, as this
field is present in the binary data.

Cc: Alex Deucher <Alexander.Deucher@xxxxxxx>
Signed-off-by: Luben Tuikov <luben.tuikov@xxxxxxx>
---
   drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 8 ++++++++
   1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index c8dbdb78988ce0..0496d369504641 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -393,6 +393,7 @@ struct ip_hw_instance {
   	int hw_id;
   	u8  num_instance;
   	u8  major, minor, revision;
+	u8  harvest;
Should we maybe use bool here instead?

Apart from that looks good to me.
Thanks Christian.

I don't mind using bool here.

I saw the field in the binary data is 4 bits and represented that.

Is the field actually bool in the IP binary data?

I'm not sure either.

I would have expected it to be a single bit flag in the binary, but 4bits sounds like it serves some more purpose.

Probably best to stick to u8 for now in this case.

Regards,
Christian.

I can change the patch and resubmit.

Regards,
Luben

Regards,
Christian.

int num_base_addresses;
   	u32 base_addr[];
@@ -440,6 +441,11 @@ static ssize_t revision_show(struct ip_hw_instance *ip_hw_instance, char *buf)
   	return sysfs_emit(buf, "%d\n", ip_hw_instance->revision);
   }
+static ssize_t harvest_show(struct ip_hw_instance *ip_hw_instance, char *buf)
+{
+	return sysfs_emit(buf, "0x%01X\n", ip_hw_instance->harvest);
+}
+
   static ssize_t num_base_addresses_show(struct ip_hw_instance *ip_hw_instance, char *buf)
   {
   	return sysfs_emit(buf, "%d\n", ip_hw_instance->num_base_addresses);
@@ -471,6 +477,7 @@ static struct ip_hw_instance_attr ip_hw_attr[] = {
   	__ATTR_RO(major),
   	__ATTR_RO(minor),
   	__ATTR_RO(revision),
+	__ATTR_RO(harvest),
   	__ATTR_RO(num_base_addresses),
   	__ATTR_RO(base_addr),
   };
@@ -708,6 +715,7 @@ static int amdgpu_discovery_sysfs_ips(struct amdgpu_device *adev,
   			ip_hw_instance->major = ip->major;
   			ip_hw_instance->minor = ip->minor;
   			ip_hw_instance->revision = ip->revision;
+			ip_hw_instance->harvest = ip->harvest;
   			ip_hw_instance->num_base_addresses = ip->num_base_address;
for (kk = 0; kk < ip_hw_instance->num_base_addresses; kk++)

base-commit: d8604f1d237a145db48bae4ea60b85a5875df307
Regards,




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