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| author | Thierry Reding <treding@nvidia.com> | 2022-09-22 16:41:24 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2022-10-24 16:18:11 +0300 |
| commit | 4c1e0a97351a5e88e7e503b40cdbe0f220039a5e (patch) | |
| tree | be5165a467aec518ffacc940069c4564d39c9df1 /include/soc/tegra/bpmp.h | |
| parent | 236d3907aa7c03168dbc4d0e8faa77d10bbb969f (diff) | |
| download | linux-4c1e0a97351a5e88e7e503b40cdbe0f220039a5e.tar.xz | |
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/bpmp.h')
| -rw-r--r-- | include/soc/tegra/bpmp.h | 17 |
1 files changed, 15 insertions, 2 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; |