crypto: qat - abstract build ring base

Abstract the implementation of BUILD_RING_BASE_ADDR.

This is in preparation for the introduction of the qat_4xxx driver since
the value of the ring base differs between QAT GEN2 and QAT GEN4
devices.

Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Reviewed-by: Maksim Lukoshkov <maksim.lukoshkov@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/adf_accel_devices.h

@@ -110,6 +110,7 @@ struct admin_info {
 };
 
 struct adf_hw_csr_ops {
+	u64 (*build_csr_ring_base_addr)(dma_addr_t addr, u32 size);
 	u32 (*read_csr_ring_head)(void __iomem *csr_base_addr, u32 bank,
 				  u32 ring);
 	void (*write_csr_ring_head)(void __iomem *csr_base_addr, u32 bank,

drivers/crypto/qat/qat_common/adf_gen2_hw_data.c

@@ -55,6 +55,11 @@ void adf_gen2_get_arb_info(struct arb_info *arb_info)
 }
 EXPORT_SYMBOL_GPL(adf_gen2_get_arb_info);
 
+static u64 build_csr_ring_base_addr(dma_addr_t addr, u32 size)
+{
+	return BUILD_RING_BASE_ADDR(addr, size);
+}
+
 static u32 read_csr_ring_head(void __iomem *csr_base_addr, u32 bank, u32 ring)
 {
 	return READ_CSR_RING_HEAD(csr_base_addr, bank, ring);
@@ -124,6 +129,7 @@ static void write_csr_int_flag_and_col(void __iomem *csr_base_addr, u32 bank,
 
 void adf_gen2_init_hw_csr_ops(struct adf_hw_csr_ops *csr_ops)
 {
+	csr_ops->build_csr_ring_base_addr = build_csr_ring_base_addr;
 	csr_ops->read_csr_ring_head = read_csr_ring_head;
 	csr_ops->write_csr_ring_head = write_csr_ring_head;
 	csr_ops->read_csr_ring_tail = read_csr_ring_tail;

drivers/crypto/qat/qat_common/adf_gen2_hw_data.h

@@ -23,6 +23,8 @@
 #define ADF_RING_CSR_INT_COL_CTL_ENABLE	0x80000000
 #define ADF_RING_BUNDLE_SIZE		0x1000
 
+#define BUILD_RING_BASE_ADDR(addr, size) \
+	(((addr) >> 6) & (0xFFFFFFFFFFFFFFFFULL << (size)))
 #define READ_CSR_RING_HEAD(csr_base_addr, bank, ring) \
 	ADF_CSR_RD(csr_base_addr, (ADF_RING_BUNDLE_SIZE * (bank)) + \
 		   ADF_RING_CSR_RING_HEAD + ((ring) << 2))

drivers/crypto/qat/qat_common/adf_transport.c

@@ -180,7 +180,9 @@ static int adf_init_ring(struct adf_etr_ring_data *ring)
 	else
 		adf_configure_rx_ring(ring);
 
-	ring_base = BUILD_RING_BASE_ADDR(ring->dma_addr, ring->ring_size);
+	ring_base = csr_ops->build_csr_ring_base_addr(ring->dma_addr,
+						      ring->ring_size);
+
 	csr_ops->write_csr_ring_base(ring->bank->csr_addr,
 				     ring->bank->bank_number, ring->ring_number,
 				     ring_base);

drivers/crypto/qat/qat_common/adf_transport_access_macros.h

@@ -56,6 +56,4 @@
 	((watermark_nf << ADF_RING_CONFIG_NEAR_FULL_WM)	\
 	| (watermark_ne << ADF_RING_CONFIG_NEAR_EMPTY_WM) \
 	| size)
-#define BUILD_RING_BASE_ADDR(addr, size) \
-	((addr >> 6) & (0xFFFFFFFFFFFFFFFFULL << size))
 #endif