xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypto: ccp - Support for multiple CCPs

Browse Source 
Enable management of >1 CCPs in a system. Each device will
get a unique identifier, as well as uniquely named
resources. Treat each CCP as an orthogonal unit and register
 resources individually.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gary R Hook
2016-03-01 13:49:04 -06:00
committed by Herbert Xu
parent 3f19ce2054
commit 553d2374db
4 changed files with 114 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/crypto/ccp/ccp-pci.c
View File

@@ -1,7 +1,7 @@
/*
* AMD Cryptographic Coprocessor (CCP) driver
*
* Copyright (C) 2013 Advanced Micro Devices, Inc.
* Copyright (C) 2013,2016 Advanced Micro Devices, Inc.
*
* Author: Tom Lendacky <thomas.lendacky@amd.com>
*
@@ -59,7 +59,8 @@ static int ccp_get_msix_irqs(struct ccp_device *ccp)
ccp_pci->msix_count = ret;
for (v = 0; v < ccp_pci->msix_count; v++) {
/* Set the interrupt names and request the irqs */
snprintf(ccp_pci->msix[v].name, name_len, "ccp-%u", v);
snprintf(ccp_pci->msix[v].name, name_len, "%s-%u",
ccp->name, v);
ccp_pci->msix[v].vector = msix_entry[v].vector;
ret = request_irq(ccp_pci->msix[v].vector, ccp_irq_handler,
0, ccp_pci->msix[v].name, dev);
@@ -94,7 +95,7 @@ static int ccp_get_msi_irq(struct ccp_device *ccp)
return ret;
ccp->irq = pdev->irq;
ret = request_irq(ccp->irq, ccp_irq_handler, 0, "ccp", dev);
ret = request_irq(ccp->irq, ccp_irq_handler, 0, ccp->name, dev);
if (ret) {
dev_notice(dev, "unable to allocate MSI IRQ (%d)\n", ret);
goto e_msi;