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authorThierry Reding <treding@nvidia.com>2022-09-22 15:41:24 +0200
committerThierry Reding <treding@nvidia.com>2022-10-24 15:18:11 +0200
commit4c1e0a97351a5e88e7e503b40cdbe0f220039a5e (patch)
treebe5165a467aec518ffacc940069c4564d39c9df1 /include/soc/tegra
parent236d3907aa7c03168dbc4d0e8faa77d10bbb969f (diff)
firmware: tegra: bpmp: Use iosys-map helpers
The shared memory used for inter-processor communication between the CPU and the BPMP can reside either in system memory or in I/O memory. Use the iosys-map helpers to abstract these differences away. Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'include/soc/tegra')
-rw-r--r--include/soc/tegra/bpmp.h17
-rw-r--r--include/soc/tegra/ivc.h11
2 files changed, 21 insertions, 7 deletions
diff --git a/include/soc/tegra/bpmp.h b/include/soc/tegra/bpmp.h
index f2604e99af09..5842e38bb288 100644
--- a/include/soc/tegra/bpmp.h
+++ b/include/soc/tegra/bpmp.h
@@ -6,6 +6,7 @@
#ifndef __SOC_TEGRA_BPMP_H
#define __SOC_TEGRA_BPMP_H
+#include <linux/iosys-map.h>
#include <linux/mailbox_client.h>
#include <linux/pm_domain.h>
#include <linux/reset-controller.h>
@@ -36,10 +37,22 @@ struct tegra_bpmp_mb_data {
u8 data[MSG_DATA_MIN_SZ];
} __packed;
+#define tegra_bpmp_mb_read(dst, mb, size) \
+ iosys_map_memcpy_from(dst, mb, offsetof(struct tegra_bpmp_mb_data, data), size)
+
+#define tegra_bpmp_mb_write(mb, src, size) \
+ iosys_map_memcpy_to(mb, offsetof(struct tegra_bpmp_mb_data, data), src, size)
+
+#define tegra_bpmp_mb_read_field(mb, field) \
+ iosys_map_rd_field(mb, 0, struct tegra_bpmp_mb_data, field)
+
+#define tegra_bpmp_mb_write_field(mb, field, value) \
+ iosys_map_wr_field(mb, 0, struct tegra_bpmp_mb_data, field, value)
+
struct tegra_bpmp_channel {
struct tegra_bpmp *bpmp;
- struct tegra_bpmp_mb_data *ib;
- struct tegra_bpmp_mb_data *ob;
+ struct iosys_map ib;
+ struct iosys_map ob;
struct completion completion;
struct tegra_ivc *ivc;
unsigned int index;
diff --git a/include/soc/tegra/ivc.h b/include/soc/tegra/ivc.h
index 4aeb77cc22c5..116793b26330 100644
--- a/include/soc/tegra/ivc.h
+++ b/include/soc/tegra/ivc.h
@@ -7,6 +7,7 @@
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/iosys-map.h>
#include <linux/types.h>
struct tegra_ivc_header;
@@ -15,7 +16,7 @@ struct tegra_ivc {
struct device *peer;
struct {
- struct tegra_ivc_header *channel;
+ struct iosys_map map;
unsigned int position;
dma_addr_t phys;
} rx, tx;
@@ -36,7 +37,7 @@ struct tegra_ivc {
*
* Returns a pointer to the frame, or an error encoded pointer.
*/
-void *tegra_ivc_read_get_next_frame(struct tegra_ivc *ivc);
+int tegra_ivc_read_get_next_frame(struct tegra_ivc *ivc, struct iosys_map *map);
/**
* tegra_ivc_read_advance - Advance the read queue
@@ -56,7 +57,7 @@ int tegra_ivc_read_advance(struct tegra_ivc *ivc);
*
* Returns a pointer to the frame, or an error encoded pointer.
*/
-void *tegra_ivc_write_get_next_frame(struct tegra_ivc *ivc);
+int tegra_ivc_write_get_next_frame(struct tegra_ivc *ivc, struct iosys_map *map);
/**
* tegra_ivc_write_advance - Advance the write queue
@@ -91,8 +92,8 @@ void tegra_ivc_reset(struct tegra_ivc *ivc);
size_t tegra_ivc_align(size_t size);
unsigned tegra_ivc_total_queue_size(unsigned queue_size);
-int tegra_ivc_init(struct tegra_ivc *ivc, struct device *peer, void *rx,
- dma_addr_t rx_phys, void *tx, dma_addr_t tx_phys,
+int tegra_ivc_init(struct tegra_ivc *ivc, struct device *peer, const struct iosys_map *rx,
+ dma_addr_t rx_phys, const struct iosys_map *tx, dma_addr_t tx_phys,
unsigned int num_frames, size_t frame_size,
void (*notify)(struct tegra_ivc *ivc, void *data),
void *data);