drm/i915/xelpd: Pipe A DMC plugging

This patch adds Pipe A plumbing to the already
existing parsing and loading functions which is
taken care of in the prep patches. Adding MAX_DMC_FW
to keep track for both Main and Pipe A DMC while loading
the respective blobs.

Also adding present field in dmc_info.
s/find_dmc_fw_offset/csr_set_dmc_fw_offset. While at it add
fw_info_matches_stepping() helper. CSR_PROGRAM() should now
take the starting address of the particular blob (Main or Pipe)
and not hardcode it.

v2: Add dmc_offset and start_mmioaddr fields for dmc_info struct.

v3: Add a missing corner cases of stepping-substepping combination in
fw_info_matches_stepping() helper.

v4: Add macro for start_mmioaddr for V1 package. Simplify code
in dmc_set_fw_offset (Lucas)

Cc: Souza, Jose <jose.souza@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210621191415.29823-3-anusha.srivatsa@intel.com

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_dmc.h b/drivers/gpu/drm/i915/display/intel_dmc.h
index b872f3a4fd03..007a284b0ef0 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.h
+++ b/drivers/gpu/drm/i915/display/intel_dmc.h
@@ -18,6 +18,7 @@ struct drm_i915_private;
 
 enum {
 	DMC_FW_MAIN = 0,
+	DMC_FW_PIPEA,
 	DMC_FW_MAX
 };
 
@@ -31,8 +32,11 @@ struct intel_dmc {
 		u32 mmio_count;
 		i915_reg_t mmioaddr[20];
 		u32 mmiodata[20];
+		u32 dmc_offset;
+		u32 start_mmioaddr;
 		u32 dmc_fw_size; /*dwords */
 		u32 *payload;
+		bool present;
 	} dmc_info[DMC_FW_MAX];
 
 	u32 dc_state;