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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-17 12:52:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-17 12:52:23 -0800
commit6daa90439e91bb9a71864b02f7d0af8587ea889a (patch)
treecd747a40f9aac87089d3d73de9d42c5863fe7896 /drivers/dma/idxd/registers.h
parent83005cd6bc76eef7bbf46b55bbb00ccc9534c38c (diff)
parent115ff12aecfd55376d704fa2c0a2d117e5827f9f (diff)
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Merge tag 'dmaengine-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul: "The last dmaengine updates for this year :) This contains couple of new drivers, new device support and updates to bunch of drivers. New drivers/devices: - Qualcomm ADM driver - Qualcomm GPI driver - Allwinner A100 DMA support - Microchip Sama7g5 support - Mediatek MT8516 apdma Updates: - more updates to idxd driver and support for IAX config - runtime PM support for dw driver - TI drivers" * tag 'dmaengine-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (75 commits) soc: ti: k3-ringacc: Use correct error casting in k3_ringacc_dmarings_init dmaengine: ti: k3-udma-glue: Add support for K3 PKTDMA dmaengine: ti: k3-udma: Initial support for K3 PKTDMA dmaengine: ti: k3-udma: Add support for BCDMA channel TPL handling dmaengine: ti: k3-udma: Initial support for K3 BCDMA soc: ti: k3-ringacc: add AM64 DMA rings support. dmaengine: ti: Add support for k3 event routers dmaengine: ti: k3-psil: Add initial map for AM64 dmaengine: ti: k3-psil: Extend psil_endpoint_config for K3 PKTDMA dt-bindings: dma: ti: Add document for K3 PKTDMA dt-bindings: dma: ti: Add document for K3 BCDMA dmaengine: dmatest: Use dmaengine_get_dma_device dmaengine: doc: client: Update for dmaengine_get_dma_device() usage dmaengine: Add support for per channel coherency handling dmaengine: of-dma: Add support for optional router configuration callback dmaengine: ti: k3-udma-glue: Configure the dma_dev for rings dmaengine: ti: k3-udma-glue: Get the ringacc from udma_dev dmaengine: ti: k3-udma-glue: Add function to get device pointer for DMA API dmaengine: ti: k3-udma: Add support for second resource range from sysfw dmaengine: ti: k3-udma: Wait for peer teardown completion if supported ...
Diffstat (limited to 'drivers/dma/idxd/registers.h')
-rw-r--r--drivers/dma/idxd/registers.h28
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/dma/idxd/registers.h b/drivers/dma/idxd/registers.h
index 54390334c243..751ecb4f9f81 100644
--- a/drivers/dma/idxd/registers.h
+++ b/drivers/dma/idxd/registers.h
@@ -5,6 +5,7 @@
/* PCI Config */
#define PCI_DEVICE_ID_INTEL_DSA_SPR0 0x0b25
+#define PCI_DEVICE_ID_INTEL_IAX_SPR0 0x0cfe
#define IDXD_MMIO_BAR 0
#define IDXD_WQ_BAR 2
@@ -47,7 +48,7 @@ union wq_cap_reg {
u64 rsvd:20;
u64 shared_mode:1;
u64 dedicated_mode:1;
- u64 rsvd2:1;
+ u64 wq_ats_support:1;
u64 priority:1;
u64 occupancy:1;
u64 occupancy_int:1;
@@ -102,6 +103,8 @@ union offsets_reg {
u64 bits[2];
} __packed;
+#define IDXD_TABLE_MULT 0x100
+
#define IDXD_GENCFG_OFFSET 0x80
union gencfg_reg {
struct {
@@ -301,7 +304,8 @@ union wqcfg {
/* bytes 8-11 */
u32 mode:1; /* shared or dedicated */
u32 bof:1; /* block on fault */
- u32 rsvd2:2;
+ u32 wq_ats_disable:1;
+ u32 rsvd2:1;
u32 priority:4;
u32 pasid:20;
u32 pasid_en:1;
@@ -336,6 +340,8 @@ union wqcfg {
u32 bits[8];
} __packed;
+#define WQCFG_PASID_IDX 2
+
/*
* This macro calculates the offset into the WQCFG register
* idxd - struct idxd *
@@ -354,4 +360,22 @@ union wqcfg {
#define WQCFG_STRIDES(_idxd_dev) ((_idxd_dev)->wqcfg_size / sizeof(u32))
+#define GRPCFG_SIZE 64
+#define GRPWQCFG_STRIDES 4
+
+/*
+ * This macro calculates the offset into the GRPCFG register
+ * idxd - struct idxd *
+ * n - wq id
+ * ofs - the index of the 32b dword for the config register
+ *
+ * The WQCFG register block is divided into groups per each wq. The n index
+ * allows us to move to the register group that's for that particular wq.
+ * Each register is 32bits. The ofs gives us the number of register to access.
+ */
+#define GRPWQCFG_OFFSET(idxd_dev, n, ofs) ((idxd_dev)->grpcfg_offset +\
+ (n) * GRPCFG_SIZE + sizeof(u64) * (ofs))
+#define GRPENGCFG_OFFSET(idxd_dev, n) ((idxd_dev)->grpcfg_offset + (n) * GRPCFG_SIZE + 32)
+#define GRPFLGCFG_OFFSET(idxd_dev, n) ((idxd_dev)->grpcfg_offset + (n) * GRPCFG_SIZE + 40)
+
#endif