drm/radeon: use common cs packet parse function

We now have a common radeon_cs_packet_parse function
that is good for all ASICs. Hook it up and eliminate
ASIC-specific versions.

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

5 files changed, 20 insertions, 157 deletions

diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 7a445666e71f..1ba4ca38f4f9 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -1009,53 +1009,6 @@ static int evergreen_cs_track_check(struct radeon_cs_parser *p)
 }
 
 /**
- * evergreen_cs_packet_parse() - parse cp packet and point ib index to next packet
- * @parser:     parser structure holding parsing context.
- * @pkt:        where to store packet informations
- *
- * Assume that chunk_ib_index is properly set. Will return -EINVAL
- * if packet is bigger than remaining ib size. or if packets is unknown.
- **/
-static int evergreen_cs_packet_parse(struct radeon_cs_parser *p,
-                              struct radeon_cs_packet *pkt,
-                              unsigned idx)
-{
-        struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
-        uint32_t header;
-
-        if (idx >= ib_chunk->length_dw) {
-                DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
-                          idx, ib_chunk->length_dw);
-                return -EINVAL;
-        }
-        header = radeon_get_ib_value(p, idx);
-        pkt->idx = idx;
-        pkt->type = CP_PACKET_GET_TYPE(header);
-        pkt->count = CP_PACKET_GET_COUNT(header);
-        pkt->one_reg_wr = 0;
-        switch (pkt->type) {
-        case PACKET_TYPE0:
-                pkt->reg = CP_PACKET0_GET_REG(header);
-                break;
-        case PACKET_TYPE3:
-                pkt->opcode = CP_PACKET3_GET_OPCODE(header);
-                break;
-        case PACKET_TYPE2:
-                pkt->count = -1;
-                break;
-        default:
-                DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx);
-                return -EINVAL;
-        }
-        if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) {
-                DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
-                          pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw);
-                return -EINVAL;
-        }
-        return 0;
-}
-
-/**
  * evergreen_cs_packet_next_reloc() - parse next packet which should be reloc packet3
  * @parser:             parser structure holding parsing context.
  * @data:               pointer to relocation data
@@ -1080,7 +1033,7 @@ static int evergreen_cs_packet_next_reloc(struct radeon_cs_parser *p,
         }
         *cs_reloc = NULL;
         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
-        r = evergreen_cs_packet_parse(p, &p3reloc, p->idx);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx);
         if (r) {
                 return r;
         }
@@ -1112,7 +1065,7 @@ static bool evergreen_cs_packet_next_is_pkt3_nop(struct radeon_cs_parser *p)
         struct radeon_cs_packet p3reloc;
         int r;
 
-        r = evergreen_cs_packet_parse(p, &p3reloc, p->idx);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx);
         if (r) {
                 return false;
         }
@@ -1150,7 +1103,7 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
         ib = p->ib.ptr;
 
         /* parse the WAIT_REG_MEM */
-        r = evergreen_cs_packet_parse(p, &wait_reg_mem, p->idx);
+        r = radeon_cs_packet_parse(p, &wait_reg_mem, p->idx);
         if (r)
                 return r;
 
@@ -1183,7 +1136,7 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
         }
 
         /* jump over the NOP */
-        r = evergreen_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2);
         if (r)
                 return r;
 
@@ -2819,7 +2772,7 @@ int evergreen_cs_parse(struct radeon_cs_parser *p)
                 p->track = track;
         }
         do {
-                r = evergreen_cs_packet_parse(p, &pkt, p->idx);
+                r = radeon_cs_packet_parse(p, &pkt, p->idx);
                 if (r) {
                         kfree(p->track);
                         p->track = NULL;
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 40c0318b1eef..7842447da4fb 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1370,53 +1370,6 @@ void r100_cs_dump_packet(struct radeon_cs_parser *p,
 }
 
 /**
- * r100_cs_packet_parse() - parse cp packet and point ib index to next packet
- * @parser:     parser structure holding parsing context.
- * @pkt:        where to store packet informations
- *
- * Assume that chunk_ib_index is properly set. Will return -EINVAL
- * if packet is bigger than remaining ib size. or if packets is unknown.
- **/
-int r100_cs_packet_parse(struct radeon_cs_parser *p,
-                         struct radeon_cs_packet *pkt,
-                         unsigned idx)
-{
-        struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
-        uint32_t header;
-
-        if (idx >= ib_chunk->length_dw) {
-                DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
-                          idx, ib_chunk->length_dw);
-                return -EINVAL;
-        }
-        header = radeon_get_ib_value(p, idx);
-        pkt->idx = idx;
-        pkt->type = CP_PACKET_GET_TYPE(header);
-        pkt->count = CP_PACKET_GET_COUNT(header);
-        switch (pkt->type) {
-        case PACKET_TYPE0:
-                pkt->reg = CP_PACKET0_GET_REG(header);
-                pkt->one_reg_wr = CP_PACKET0_GET_ONE_REG_WR(header);
-                break;
-        case PACKET_TYPE3:
-                pkt->opcode = CP_PACKET3_GET_OPCODE(header);
-                break;
-        case PACKET_TYPE2:
-                pkt->count = -1;
-                break;
-        default:
-                DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx);
-                return -EINVAL;
-        }
-        if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) {
-                DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
-                          pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw);
-                return -EINVAL;
-        }
-        return 0;
-}
-
-/**
  * r100_cs_packet_next_vline() - parse userspace VLINE packet
  * @parser:             parser structure holding parsing context.
  *
@@ -1444,7 +1397,7 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
         ib = p->ib.ptr;
 
         /* parse the wait until */
-        r = r100_cs_packet_parse(p, &waitreloc, p->idx);
+        r = radeon_cs_packet_parse(p, &waitreloc, p->idx);
         if (r)
                 return r;
 
@@ -1461,7 +1414,7 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
         }
 
         /* jump over the NOP */
-        r = r100_cs_packet_parse(p, &p3reloc, p->idx + waitreloc.count + 2);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx + waitreloc.count + 2);
         if (r)
                 return r;
 
@@ -1531,7 +1484,7 @@ int r100_cs_packet_next_reloc(struct radeon_cs_parser *p,
         }
         *cs_reloc = NULL;
         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
-        r = r100_cs_packet_parse(p, &p3reloc, p->idx);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx);
         if (r) {
                 return r;
         }
@@ -2100,7 +2053,7 @@ int r100_cs_parse(struct radeon_cs_parser *p)
         r100_cs_track_clear(p->rdev, track);
         p->track = track;
         do {
-                r = r100_cs_packet_parse(p, &pkt, p->idx);
+                r = radeon_cs_packet_parse(p, &pkt, p->idx);
                 if (r) {
                         return r;
                 }
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index d0ba6023a1f8..34ca46e46347 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1257,7 +1257,7 @@ int r300_cs_parse(struct radeon_cs_parser *p)
         r100_cs_track_clear(p->rdev, track);
         p->track = track;
         do {
-                r = r100_cs_packet_parse(p, &pkt, p->idx);
+                r = radeon_cs_packet_parse(p, &pkt, p->idx);
                 if (r) {
                         return r;
                 }
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 69ec24ab8d63..3870bf8c1bc7 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -784,53 +784,6 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
 }
 
 /**
- * r600_cs_packet_parse() - parse cp packet and point ib index to next packet
- * @parser:     parser structure holding parsing context.
- * @pkt:        where to store packet informations
- *
- * Assume that chunk_ib_index is properly set. Will return -EINVAL
- * if packet is bigger than remaining ib size. or if packets is unknown.
- **/
-static int r600_cs_packet_parse(struct radeon_cs_parser *p,
-                        struct radeon_cs_packet *pkt,
-                        unsigned idx)
-{
-        struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
-        uint32_t header;
-
-        if (idx >= ib_chunk->length_dw) {
-                DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
-                          idx, ib_chunk->length_dw);
-                return -EINVAL;
-        }
-        header = radeon_get_ib_value(p, idx);
-        pkt->idx = idx;
-        pkt->type = CP_PACKET_GET_TYPE(header);
-        pkt->count = CP_PACKET_GET_COUNT(header);
-        pkt->one_reg_wr = 0;
-        switch (pkt->type) {
-        case PACKET_TYPE0:
-                pkt->reg = CP_PACKET0_GET_REG(header);
-                break;
-        case PACKET_TYPE3:
-                pkt->opcode = CP_PACKET3_GET_OPCODE(header);
-                break;
-        case PACKET_TYPE2:
-                pkt->count = -1;
-                break;
-        default:
-                DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx);
-                return -EINVAL;
-        }
-        if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) {
-                DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
-                          pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw);
-                return -EINVAL;
-        }
-        return 0;
-}
-
-/**
  * r600_cs_packet_next_reloc_mm() - parse next packet which should be reloc packet3
  * @parser:             parser structure holding parsing context.
  * @data:               pointer to relocation data
@@ -855,7 +808,7 @@ static int r600_cs_packet_next_reloc_mm(struct radeon_cs_parser *p,
         }
         *cs_reloc = NULL;
         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
-        r = r600_cs_packet_parse(p, &p3reloc, p->idx);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx);
         if (r) {
                 return r;
         }
@@ -901,7 +854,7 @@ static int r600_cs_packet_next_reloc_nomm(struct radeon_cs_parser *p,
         }
         *cs_reloc = NULL;
         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
-        r = r600_cs_packet_parse(p, &p3reloc, p->idx);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx);
         if (r) {
                 return r;
         }
@@ -935,7 +888,7 @@ static int r600_cs_packet_next_is_pkt3_nop(struct radeon_cs_parser *p)
         struct radeon_cs_packet p3reloc;
         int r;
 
-        r = r600_cs_packet_parse(p, &p3reloc, p->idx);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx);
         if (r) {
                 return 0;
         }
@@ -973,7 +926,7 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
         ib = p->ib.ptr;
 
         /* parse the WAIT_REG_MEM */
-        r = r600_cs_packet_parse(p, &wait_reg_mem, p->idx);
+        r = radeon_cs_packet_parse(p, &wait_reg_mem, p->idx);
         if (r)
                 return r;
 
@@ -1006,7 +959,7 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
         }
 
         /* jump over the NOP */
-        r = r600_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2);
+        r = radeon_cs_packet_parse(p, &p3reloc, p->idx + wait_reg_mem.count + 2);
         if (r)
                 return r;
 
@@ -2410,7 +2363,7 @@ int r600_cs_parse(struct radeon_cs_parser *p)
                 p->track = track;
         }
         do {
-                r = r600_cs_packet_parse(p, &pkt, p->idx);
+                r = radeon_cs_packet_parse(p, &pkt, p->idx);
                 if (r) {
                         kfree(p->track);
                         p->track = NULL;
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index a08f657329a0..b8d1c5c0c2c6 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1972,6 +1972,10 @@ static inline int radeon_acpi_init(struct radeon_device *rdev) { return 0; }
 static inline void radeon_acpi_fini(struct radeon_device *rdev) { }
 #endif
 
+int radeon_cs_packet_parse(struct radeon_cs_parser *p,
+                           struct radeon_cs_packet *pkt,
+                           unsigned idx);
+
 #include "radeon_object.h"
 
 #endif