From: Oded Gabbay Date: Tue, 27 Oct 2020 07:34:44 +0000 (+0200) Subject: habanalabs/gaudi: increase MAX CS to 16K X-Git-Tag: v5.15~2217^2~60^2~38 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0da5698bf4b8c699e5e5e23d067f5a1bb1bb2401;p=platform%2Fkernel%2Flinux-starfive.git habanalabs/gaudi: increase MAX CS to 16K We need to have the MAX CS be much larger than the size of the different queues. In GAUDI we have around 8 groups of queues, and each group has 1K queue size. To prevent head-of-the-line blocking, we need to make sure there is sufficient number of available CS allocations even if one or more of those queues are full. Signed-off-by: Oded Gabbay --- diff --git a/drivers/misc/habanalabs/gaudi/gaudiP.h b/drivers/misc/habanalabs/gaudi/gaudiP.h index 297a96d..e882cf7 100644 --- a/drivers/misc/habanalabs/gaudi/gaudiP.h +++ b/drivers/misc/habanalabs/gaudi/gaudiP.h @@ -60,7 +60,7 @@ #define GAUDI_DEFAULT_CARD_NAME "HL2000" -#define GAUDI_MAX_PENDING_CS 1024 +#define GAUDI_MAX_PENDING_CS SZ_16K #if !IS_MAX_PENDING_CS_VALID(GAUDI_MAX_PENDING_CS) #error "GAUDI_MAX_PENDING_CS must be power of 2 and greater than 1"