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soc: apple: rtkit: Fix buffer address field width

Message ID 20230224-gpu-up-rtkit-v1-1-671178cb2a5e@asahilina.net
State New
Headers
Series soc: apple: rtkit: Fix buffer address field width |

Commit Message

Asahi Lina Feb. 24, 2023, 6:49 a.m. UTC 
  The buffer address field is missing two bits. This matters for the GPU,
which uses upper-half 64-bit addresses on the ASC and those get sign
extended from the mailbox message field, so the right number of high
bits need to be set.

Signed-off-by: Asahi Lina <lina@asahilina.net>
---
 drivers/soc/apple/rtkit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


---
base-commit: 83f978b63fa7ad474ca22d7e2772c5988101c9bd
change-id: 20230224-gpu-up-rtkit-f4bc18e78c8a

Thank you,
~~ Lina

Comments

Sven Peter Feb. 25, 2023, 12:42 p.m. UTC | #1 
> On 24. Feb 2023, at 07:50, Asahi Lina <lina@asahilina.net> wrote:
> 
> The buffer address field is missing two bits. This matters for the GPU,
> which uses upper-half 64-bit addresses on the ASC and those get sign
> extended from the mailbox message field, so the right number of high
> bits need to be set.
> 
> Signed-off-by: Asahi Lina <lina@asahilina.net>
> --

Reviewed-by: Sven Peter <sven@svenpeter.dev>
Hector Martin March 28, 2023, 10:50 a.m. UTC | #2 
On 24/02/2023 15.49, Asahi Lina wrote:
> The buffer address field is missing two bits. This matters for the GPU,
> which uses upper-half 64-bit addresses on the ASC and those get sign
> extended from the mailbox message field, so the right number of high
> bits need to be set.
> 
> Signed-off-by: Asahi Lina <lina@asahilina.net>
> ---
>  drivers/soc/apple/rtkit.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/soc/apple/rtkit.c b/drivers/soc/apple/rtkit.c
> index 35ec35aa500d..a02a44a745f6 100644
> --- a/drivers/soc/apple/rtkit.c
> +++ b/drivers/soc/apple/rtkit.c
> @@ -55,7 +55,7 @@ enum {
>  
>  #define APPLE_RTKIT_BUFFER_REQUEST	1
>  #define APPLE_RTKIT_BUFFER_REQUEST_SIZE GENMASK_ULL(51, 44)
> -#define APPLE_RTKIT_BUFFER_REQUEST_IOVA GENMASK_ULL(41, 0)
> +#define APPLE_RTKIT_BUFFER_REQUEST_IOVA GENMASK_ULL(43, 0)
>  
>  #define APPLE_RTKIT_SYSLOG_TYPE GENMASK_ULL(59, 52)
>  
> 
> ---
> base-commit: 83f978b63fa7ad474ca22d7e2772c5988101c9bd
> change-id: 20230224-gpu-up-rtkit-f4bc18e78c8a
> 
> Thank you,
> ~~ Lina
> 

Applied to asahi-soc/soc!

- Hector
diff mbox series

Patch

diff --git a/drivers/soc/apple/rtkit.c b/drivers/soc/apple/rtkit.c
index 35ec35aa500d..a02a44a745f6 100644
--- a/drivers/soc/apple/rtkit.c
+++ b/drivers/soc/apple/rtkit.c
@@ -55,7 +55,7 @@  enum {
 
 #define APPLE_RTKIT_BUFFER_REQUEST	1
 #define APPLE_RTKIT_BUFFER_REQUEST_SIZE GENMASK_ULL(51, 44)
-#define APPLE_RTKIT_BUFFER_REQUEST_IOVA GENMASK_ULL(41, 0)
+#define APPLE_RTKIT_BUFFER_REQUEST_IOVA GENMASK_ULL(43, 0)
 
 #define APPLE_RTKIT_SYSLOG_TYPE GENMASK_ULL(59, 52)