diff options
| author | Andrew Davis | 2022-10-07 12:12:29 -0500 |
|---|---|---|
| committer | Tom Rini | 2022-10-18 13:40:40 -0400 |
| commit | b0931d1bd165b53f5946c1d8c42a8e225b8e5cf0 (patch) | |
| tree | 4b65d33bf36d9702b2101a56eacdb68b9a6ca6f9 /arch/arm/mach-k3 | |
| parent | b9add6413d2bcbec281d1a1edeec5c729a576a1b (diff) | |
arm: mach-k3: security: Use dma-mapping for cache ops
This matches how this would be done in Linux and these functions
do the alignment for us which makes the code look cleaner.
Signed-off-by: Andrew Davis <afd@ti.com>
Diffstat (limited to 'arch/arm/mach-k3')
| -rw-r--r-- | arch/arm/mach-k3/security.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/arch/arm/mach-k3/security.c b/arch/arm/mach-k3/security.c index d8d41ec5154..092588f4b5e 100644 --- a/arch/arm/mach-k3/security.c +++ b/arch/arm/mach-k3/security.c @@ -18,6 +18,7 @@ #include <mach/spl.h> #include <spl.h> #include <asm/arch/sys_proto.h> +#include <linux/dma-mapping.h> #include "common.h" @@ -47,7 +48,6 @@ void ti_secure_image_post_process(void **p_image, size_t *p_size) u32 image_size; int ret; - image_addr = (uintptr_t)*p_image; image_size = *p_size; if (!image_size) @@ -80,13 +80,12 @@ void ti_secure_image_post_process(void **p_image, size_t *p_size) return; } + /* Clean out image so it can be seen by system firmware */ + image_addr = dma_map_single(*p_image, *p_size, DMA_BIDIRECTIONAL); + debug("Authenticating image at address 0x%016llx\n", image_addr); debug("Authenticating image of size %d bytes\n", image_size); - flush_dcache_range((unsigned long)image_addr, - ALIGN((unsigned long)image_addr + image_size, - ARCH_DMA_MINALIGN)); - /* Authenticate image */ ret = proc_ops->proc_auth_boot_image(ti_sci, &image_addr, &image_size); if (ret) { @@ -94,10 +93,9 @@ void ti_secure_image_post_process(void **p_image, size_t *p_size) hang(); } + /* Invalidate any stale lines over data written by system firmware */ if (image_size) - invalidate_dcache_range((unsigned long)image_addr, - ALIGN((unsigned long)image_addr + - image_size, ARCH_DMA_MINALIGN)); + dma_unmap_single(image_addr, image_size, DMA_BIDIRECTIONAL); /* * The image_size returned may be 0 when the authentication process has |