radeonsi: fix future C++ compile failures and warnings

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7807>

src/gallium/drivers/radeonsi/si_build_pm4.h

@@ -264,12 +264,11 @@ static inline void radeon_opt_set_context_regn(struct si_context *sctx, unsigned
                                                unsigned *value, unsigned *saved_val, unsigned num)
 {
    struct radeon_cmdbuf *cs = &sctx->gfx_cs;
-   int i, j;
 
-   for (i = 0; i < num; i++) {
+   for (unsigned i = 0; i < num; i++) {
       if (saved_val[i] != value[i]) {
          radeon_set_context_reg_seq(cs, offset, num);
-         for (j = 0; j < num; j++)
+         for (unsigned j = 0; j < num; j++)
             radeon_emit(cs, value[j]);
 
          memcpy(saved_val, value, sizeof(uint32_t) * num);

src/gallium/drivers/radeonsi/si_pipe.h

@@ -50,10 +50,10 @@ extern "C" {
  * one which will mean "unknown" for the purpose of state tracking and
  * the number shouldn't be a commonly-used one. */
 #define SI_BASE_VERTEX_UNKNOWN    INT_MIN
-#define SI_START_INSTANCE_UNKNOWN INT_MIN
-#define SI_DRAW_ID_UNKNOWN        INT_MIN
-#define SI_RESTART_INDEX_UNKNOWN  INT_MIN
-#define SI_INSTANCE_COUNT_UNKNOWN INT_MIN
+#define SI_START_INSTANCE_UNKNOWN ((unsigned)INT_MIN)
+#define SI_DRAW_ID_UNKNOWN        ((unsigned)INT_MIN)
+#define SI_RESTART_INDEX_UNKNOWN  ((unsigned)INT_MIN)
+#define SI_INSTANCE_COUNT_UNKNOWN ((unsigned)INT_MIN)
 #define SI_NUM_SMOOTH_AA_SAMPLES  8
 #define SI_MAX_POINT_SIZE         2048
 #define SI_GS_PER_ES              128
@@ -1106,17 +1106,17 @@ struct si_context {
    bool ngg : 1;
    bool same_patch_vertices : 1;
    uint8_t ngg_culling;
-   int last_index_size;
+   unsigned last_index_size;
    int last_base_vertex;
-   int last_start_instance;
-   int last_instance_count;
-   int last_drawid;
-   int last_sh_base_reg;
+   unsigned last_start_instance;
+   unsigned last_instance_count;
+   unsigned last_drawid;
+   unsigned last_sh_base_reg;
    int last_primitive_restart_en;
-   int last_restart_index;
-   int last_prim;
-   int last_multi_vgt_param;
-   int last_gs_out_prim;
+   unsigned last_restart_index;
+   unsigned last_prim;
+   unsigned last_multi_vgt_param;
+   unsigned last_gs_out_prim;
    int last_binning_enabled;
    unsigned current_vs_state;
    unsigned last_vs_state;
@@ -1140,11 +1140,11 @@ struct si_context {
    /* Local shader (VS), or HS if LS-HS are merged. */
    struct si_shader *last_ls;
    struct si_shader_selector *last_tcs;
-   int last_num_tcs_input_cp;
-   int last_tes_sh_base;
+   unsigned last_num_tcs_input_cp;
+   unsigned last_tes_sh_base;
    bool last_tess_uses_primid;
    unsigned last_num_patches;
-   int last_ls_hs_config;
+   unsigned last_ls_hs_config;
 
    /* Debug state. */
    bool is_debug;

src/gallium/drivers/radeonsi/si_shader.h

@@ -443,7 +443,7 @@ struct si_shader_selector {
    unsigned ngg_cull_nonindexed_fast_launch_vert_threshold; /* UINT32_MAX = disabled */
    ubyte clipdist_mask;
    ubyte culldist_mask;
-   ubyte rast_prim;
+   enum pipe_prim_type rast_prim;
 
    /* ES parameters. */
    uint16_t esgs_itemsize; /* vertex stride */

src/gallium/drivers/radeonsi/si_state_draw.c

@@ -1697,7 +1697,8 @@ static void si_get_draw_start_count(struct si_context *sctx, const struct pipe_d
       unsigned *data;
 
       if (indirect->indirect_draw_count) {
-         data = pipe_buffer_map_range(&sctx->b, indirect->indirect_draw_count,
+         data = (unsigned*)
+                pipe_buffer_map_range(&sctx->b, indirect->indirect_draw_count,
                                       indirect->indirect_draw_count_offset, sizeof(unsigned),
                                       PIPE_MAP_READ, &transfer);
 
@@ -1714,7 +1715,8 @@ static void si_get_draw_start_count(struct si_context *sctx, const struct pipe_d
       }
 
       map_size = (indirect_count - 1) * indirect->stride + 3 * sizeof(unsigned);
-      data = pipe_buffer_map_range(&sctx->b, indirect->buffer, indirect->offset, map_size,
+      data = (unsigned*)
+             pipe_buffer_map_range(&sctx->b, indirect->buffer, indirect->offset, map_size,
                                    PIPE_MAP_READ, &transfer);
 
       begin = UINT_MAX;
@@ -1797,15 +1799,18 @@ static bool si_all_vs_resources_read_only(struct si_context *sctx, struct pipe_r
 {
    struct radeon_winsys *ws = sctx->ws;
    struct radeon_cmdbuf *cs = &sctx->gfx_cs;
+   struct si_descriptors *buffers =
+      &sctx->descriptors[si_const_and_shader_buffer_descriptors_idx(PIPE_SHADER_VERTEX)];
+   struct si_shader_selector *vs = sctx->vs_shader.cso;
+   struct si_vertex_elements *velems = sctx->vertex_elements;
+   unsigned num_velems = velems->count;
+   unsigned num_images = vs->info.base.num_images;
 
    /* Index buffer. */
    if (indexbuf && ws->cs_is_buffer_referenced(cs, si_resource(indexbuf)->buf, RADEON_USAGE_WRITE))
       goto has_write_reference;
 
    /* Vertex buffers. */
-   struct si_vertex_elements *velems = sctx->vertex_elements;
-   unsigned num_velems = velems->count;
-
    for (unsigned i = 0; i < num_velems; i++) {
       if (!((1 << i) & velems->first_vb_use_mask))
          continue;
@@ -1820,8 +1825,6 @@ static bool si_all_vs_resources_read_only(struct si_context *sctx, struct pipe_r
    }
 
    /* Constant and shader buffers. */
-   struct si_descriptors *buffers =
-      &sctx->descriptors[si_const_and_shader_buffer_descriptors_idx(PIPE_SHADER_VERTEX)];
    for (unsigned i = 0; i < buffers->num_active_slots; i++) {
       unsigned index = buffers->first_active_slot + i;
       struct pipe_resource *res = sctx->const_and_shader_buffers[PIPE_SHADER_VERTEX].buffers[index];
@@ -1833,7 +1836,6 @@ static bool si_all_vs_resources_read_only(struct si_context *sctx, struct pipe_r
    }
 
    /* Samplers. */
-   struct si_shader_selector *vs = sctx->vs_shader.cso;
    if (vs->info.base.textures_used) {
       unsigned num_samplers = util_last_bit(vs->info.base.textures_used);
 
@@ -1848,7 +1850,6 @@ static bool si_all_vs_resources_read_only(struct si_context *sctx, struct pipe_r
    }
 
    /* Images. */
-   unsigned num_images = vs->info.base.num_images;
    if (num_images) {
       for (unsigned i = 0; i < num_images; i++) {
          struct pipe_resource *res = sctx->images[PIPE_SHADER_VERTEX].views[i].resource;