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drm/xe: Refactor emit_clear_main_copy

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Implement a function which returns the length of XY_FAST_COLOR_BLT
instruction instead of hardcoding it inside the emit_clear_main_copy.
In future platforms, the length of this instruction is expected to
change and this patch helps in preparing for it.

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260511123746.616662-6-balasubramani.vivekanandan@intel.com
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
This commit is contained in:
Balasubramani Vivekanandan
2026-05-11 18:07:48 +05:30
parent 1d3e2a6558
commit 388768fe17
2 changed files with 12 additions and 5 deletions
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1
drivers/gpu/drm/xe/instructions/xe_gpu_commands.h
View File

@@ -20,7 +20,6 @@
#define XY_FAST_COLOR_BLT_CMD (2 << 29 | 0x44 << 22)
#define XY_FAST_COLOR_BLT_DEPTH_32 (2 << 19)
#define XY_FAST_COLOR_BLT_DW 16
#define XY_FAST_COLOR_BLT_MOCS_MASK GENMASK(27, 22)
#define XE2_XY_FAST_COLOR_BLT_MOCS_INDEX_MASK GENMASK(27, 24)
#define XY_FAST_COLOR_BLT_MEM_TYPE_SHIFT 31

16
drivers/gpu/drm/xe/xe_migrate.c
View File

@@ -1484,15 +1484,21 @@ static void emit_clear_link_copy(struct xe_gt *gt, struct xe_bb *bb, u64 src_ofs
bb->len += len;
}
static u32 blt_fast_color_cmd_len(struct xe_device *xe)
{
if (GRAPHICS_VERx100(xe) >= 1250)
return 16;
else
return 11;
}
static void emit_clear_main_copy(struct xe_gt *gt, struct xe_bb *bb,
u64 src_ofs, u32 size, u32 pitch, bool is_vram)
{
struct xe_device *xe = gt_to_xe(gt);
u32 *cs = bb->cs + bb->len;
u32 len = XY_FAST_COLOR_BLT_DW;
u32 len = blt_fast_color_cmd_len(xe);
if (GRAPHICS_VERx100(xe) < 1250)
len = 11;
*cs++ = XY_FAST_COLOR_BLT_CMD | XY_FAST_COLOR_BLT_DEPTH_32 |
(len - 2);
@@ -1527,10 +1533,12 @@ static void emit_clear_main_copy(struct xe_gt *gt, struct xe_bb *bb,
static u32 emit_clear_cmd_len(struct xe_gt *gt)
{
struct xe_device *xe = gt_to_xe(gt);
if (gt->info.has_xe2_blt_instructions)
return PVC_MEM_SET_CMD_LEN_DW;
else
return XY_FAST_COLOR_BLT_DW;
return blt_fast_color_cmd_len(xe);
}
static void emit_clear(struct xe_gt *gt, struct xe_bb *bb, u64 src_ofs,