drm/xe: Adjust mocs field mask definitions

Instead of using xe_mocs_index_to_value(), simply define the bitmask
with the shift left applied. This will make it easier to adapt to new
platforms that simply use the index.

This also fixes PVC bug in emit_clear_link_copy() where the MOCS was
getting shifted both by PVC_MS_MOCS_INDEX_MASK definition and by the
xe_moc_index_to_value function.

Bspec: 44509
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Haridhar Kalvala <haridhar.kalvala@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230929213640.3189912-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/regs/xe_gpu_commands.h b/drivers/gpu/drm/xe/regs/xe_gpu_commands.h
index 12120dd..1ee8d46 100644 (file)
--- a/drivers/gpu/drm/xe/regs/xe_gpu_commands.h
+++ b/drivers/gpu/drm/xe/regs/xe_gpu_commands.h
@@ -44,7 +44,7 @@
 #define   DST_ACCESS_TYPE_SHIFT                20
 #define   CCS_SIZE_MASK                        0x3FF
 #define   CCS_SIZE_SHIFT               8
-#define   XY_CTRL_SURF_MOCS_MASK       GENMASK(31, 25)
+#define   XY_CTRL_SURF_MOCS_MASK       GENMASK(31, 26)
 #define   NUM_CCS_BYTES_PER_BLOCK      256
 #define   NUM_BYTES_PER_CCS_BYTE       256
 #define   NUM_CCS_BLKS_PER_XFER                1024
@@ -52,7 +52,7 @@
 #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, 21)
+#define   XY_FAST_COLOR_BLT_MOCS_MASK  GENMASK(27, 22)
 #define   XY_FAST_COLOR_BLT_MEM_TYPE_SHIFT 31
 
 #define XY_FAST_COPY_BLT_CMD           (2 << 29 | 0x42 << 22)

diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c
index 77a2468..52c3a04 100644 (file)
--- a/drivers/gpu/drm/xe/xe_migrate.c
+++ b/drivers/gpu/drm/xe/xe_migrate.c
@@ -519,7 +519,7 @@ static void emit_copy_ccs(struct xe_gt *gt, struct xe_bb *bb,
 {
        u32 *cs = bb->cs + bb->len;
        u32 num_ccs_blks;
-       u32 mocs = xe_mocs_index_to_value(gt->mocs.uc_index);
+       u32 mocs = gt->mocs.uc_index;
 
        num_ccs_blks = DIV_ROUND_UP(xe_device_ccs_bytes(gt_to_xe(gt), size),
                                    NUM_CCS_BYTES_PER_BLOCK);
@@ -806,7 +806,7 @@ static void emit_clear_link_copy(struct xe_gt *gt, struct xe_bb *bb, u64 src_ofs
                                 u32 size, u32 pitch)
 {
        u32 *cs = bb->cs + bb->len;
-       u32 mocs = xe_mocs_index_to_value(gt->mocs.uc_index);
+       u32 mocs = gt->mocs.uc_index;
        u32 len = PVC_MEM_SET_CMD_LEN_DW;
 
        *cs++ = PVC_MEM_SET_CMD | PVC_MS_MATRIX | (len - 2);
@@ -828,7 +828,7 @@ static void emit_clear_main_copy(struct xe_gt *gt, struct xe_bb *bb,
        struct xe_device *xe = gt_to_xe(gt);
        u32 *cs = bb->cs + bb->len;
        u32 len = XY_FAST_COLOR_BLT_DW;
-       u32 mocs = xe_mocs_index_to_value(gt->mocs.uc_index);
+       u32 mocs = gt->mocs.uc_index;
 
        if (GRAPHICS_VERx100(xe) < 1250)
                len = 11;

diff --git a/drivers/gpu/drm/xe/xe_mocs.h b/drivers/gpu/drm/xe/xe_mocs.h
index d0f1ec4..053754c 100644 (file)
--- a/drivers/gpu/drm/xe/xe_mocs.h
+++ b/drivers/gpu/drm/xe/xe_mocs.h
@@ -14,16 +14,4 @@ struct xe_gt;
 void xe_mocs_init_early(struct xe_gt *gt);
 void xe_mocs_init(struct xe_gt *gt);
 
-/**
- * xe_mocs_index_to_value - Translate mocs index to the mocs value exected by
- * most blitter commands.
- * @mocs_index: index into the mocs tables
- *
- * Return: The corresponding mocs value to be programmed.
- */
-static inline u32 xe_mocs_index_to_value(u32 mocs_index)
-{
-       return mocs_index << 1;
-}
-
 #endif