[PATCH v3] drm/xe/guc: Fix h2g_write usage of GUC_CTB_MSG_MAX_LEN

In the ABI header, GUC_CTB_MSG_MIN_LEN is '1' because GUC_CTB_HDR_LEN is 1. This aligns with H2G/G2H CTB specification where all command formats are defined in units of dwords so that '1' is a dword. Accordingly, GUC_CTB_MSG_MAX_LEN is 256-1 (i.e. 255 dwords). However, h2g_write was incorrectly

Re: [PATCH v3] drm/xe/guc: Fix h2g_write usage of GUC_CTB_MSG_MAX_LEN

On Wed, 2023-06-28 at 21:44 +, Brost, Matthew wrote: > On Wed, Jun 28, 2023 at 11:17:18AM -0700, Alan Previn wrote: > > In the ABI header, GUC_CTB_MSG_MIN_LEN is '1' because > > GUC_CTB_HDR_LEN is 1. This aligns with H2G/G2H CTB specification > > where all command formats are defined in units

Re: [PATCH v3] drm/xe/guc: Fix h2g_write usage of GUC_CTB_MSG_MAX_LEN

On Wed, Jun 28, 2023 at 11:17:18AM -0700, Alan Previn wrote: > In the ABI header, GUC_CTB_MSG_MIN_LEN is '1' because > GUC_CTB_HDR_LEN is 1. This aligns with H2G/G2H CTB specification > where all command formats are defined in units of dwords so that '1' > is a dword. Accordingly,

[PATCH v3] drm/xe/guc: Fix h2g_write usage of GUC_CTB_MSG_MAX_LEN

In the ABI header, GUC_CTB_MSG_MIN_LEN is '1' because GUC_CTB_HDR_LEN is 1. This aligns with H2G/G2H CTB specification where all command formats are defined in units of dwords so that '1' is a dword. Accordingly, GUC_CTB_MSG_MAX_LEN is 256-1 (i.e. 255 dwords). However, h2g_write was incorrectly